If you are aware of an interesting new academic paper (that has been published in a peer-reviewed journal or has appeared on the arXiv), a conference talk (at an official professional scientific meeting), an external blog post (by a professional scientist) or a news item (in the mainstream news media), which you think might make an interesting topic for an FQXi blog post, then please contact us at forums@fqxi.org with a link to the original source and a sentence about why you think that the work is worthy of discussion. Please note that we receive many such suggestions and while we endeavour to respond to them, we may not be able to reply to all suggestions.

Please also note that we do not accept unsolicited posts and we cannot review, or open new threads for, unsolicited articles or papers. Requests to review or post such materials will not be answered. If you have your own novel physics theory or model, which you would like to post for further discussion among then FQXi community, then please add them directly to the "Alternative Models of Reality" thread, or to the "Alternative Models of Cosmology" thread. Thank you.

Please also note that we do not accept unsolicited posts and we cannot review, or open new threads for, unsolicited articles or papers. Requests to review or post such materials will not be answered. If you have your own novel physics theory or model, which you would like to post for further discussion among then FQXi community, then please add them directly to the "Alternative Models of Reality" thread, or to the "Alternative Models of Cosmology" thread. Thank you.

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*December 2, 2016 to March 3, 2017*

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*January 9, 2014 - August 31, 2014*

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*March 25 - June 28, 2013*

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Which of Our Basic Physical Assumptions Are Wrong?

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*November 2010 - February 2011*

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Current Essay Contest

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How can mindless mathematical laws give rise to aims and intention?

Contest Partner: The Peter and Patricia Gruber Fund.

read/discuss • winners

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A bench-top experiment could test the notion that gravity breaks delicate quantum superpositions.

FQXi FORUM

March 17, 2018

CATEGORY:
Trick or Truth Essay Contest (2015)
[back]

TOPIC: A Metaphorical Chart of Our Mathematical Ontology by Philip Gibbs [refresh]

TOPIC: A Metaphorical Chart of Our Mathematical Ontology by Philip Gibbs [refresh]

This is my vision of the relationship between mathematics and physics based on my observations on the nature of physical laws and mathematical structures. I use mainstream ideas from quantum gravity such as string theory, holography, the landscape and loop quantum gravity as a base for my reasoning. In addition I bring together more speculative ideas such as the Mathematical Universe Hypothesis, multiple quantisation, universality, iterated integration maps and complete symmetry. In my view these clues come together into a consistent whole where a structure from higher category theory is the central piece from which all else stems. The future of fundamental physics is going to be much more challenging than the past on both the experimental and theoretical sides and these meta-physical structures need to be understood to guide us towards the more specific physical laws which rule our universe. On a more philosophical level they can provide an explanation for why we exist and why the laws of physics are so steeped in mathematical abstraction.

I hold a PhD in theoretical physics from the University of Glasgow. I have also published a number of papers on fundamental physics as an independent researcher. In addition I love problem solving in mathematics and have made modest contributions including progress on a problem in number theory proposed by Diophantus himself and recently a new improved solution to Lebesgue's universal covering problem. The philosophical links between physics and mathematics are something that I have given much thought to over many years.

It is good to be back for another FQXi contest and the topic this time is something that has long been of interest to me. I know there are going to be some diverse views here many of which will be strongly opposed to mine. I look forward to your criticisms and questions. I expect to defend my own view which is quite mainstream in some ways and radical in others, but hopefully some comments will also make me think in new ways. If I argue against the points you make it does not mean I do not apreciate what you said.

I am also planning to read as many of the essays as I can. I will rate them too but not so much on the basis of whether I agree with them or not. What I am looking for are points that are original, relevant, well-argued and that make me think of things I have not come across before. One thing I want to avoid doing is to drop hints to say how I rated an essay and I prefer that nobody gives me any hints about how they rated mine. I prefer to have an open and honest discussion without worrying about how it will affect my score. If it means I lose out I am not concerned. The rating and prize aspect is fun but it is not the most important thing. I think the opportunity to argue and exchange thoughts is much more valuable.

Good luck to all

I am also planning to read as many of the essays as I can. I will rate them too but not so much on the basis of whether I agree with them or not. What I am looking for are points that are original, relevant, well-argued and that make me think of things I have not come across before. One thing I want to avoid doing is to drop hints to say how I rated an essay and I prefer that nobody gives me any hints about how they rated mine. I prefer to have an open and honest discussion without worrying about how it will affect my score. If it means I lose out I am not concerned. The rating and prize aspect is fun but it is not the most important thing. I think the opportunity to argue and exchange thoughts is much more valuable.

Good luck to all

Philip

A very nice essay on cutting edge topics that reflect the current unreasonable effectiveness of mathematics in physics. The hidden structure behind the amplituhedron, sporadic groups, noncommutative geometry and M-theory is rapidly being revealed. I gave an overview in my essay, through the lens of motives.

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A very nice essay on cutting edge topics that reflect the current unreasonable effectiveness of mathematics in physics. The hidden structure behind the amplituhedron, sporadic groups, noncommutative geometry and M-theory is rapidly being revealed. I gave an overview in my essay, through the lens of motives.

report post as inappropriate

Philip,

This is an excellent read. Many thanks for sharing your thoughts. For whatever it is worth to you, I agree completely that Geometric Algebra must play an important role in the nature of reality. It is very humbling to realize that not only do we not know the answers, but we do not even know how to go about asking the right questions. Yet somehow we manage to learn and to leave whatever new truths that we discover to the next generation.

Also, allow me to thank you for the website viXra.org. Without something like it, the amateurs, dilettantes, and ... ahem ... others, would be homeless.

Best Regards,

Gary Simpson

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This is an excellent read. Many thanks for sharing your thoughts. For whatever it is worth to you, I agree completely that Geometric Algebra must play an important role in the nature of reality. It is very humbling to realize that not only do we not know the answers, but we do not even know how to go about asking the right questions. Yet somehow we manage to learn and to leave whatever new truths that we discover to the next generation.

Also, allow me to thank you for the website viXra.org. Without something like it, the amateurs, dilettantes, and ... ahem ... others, would be homeless.

Best Regards,

Gary Simpson

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Gary, thanks for your comments. I agree that knowing how to ask the questions is an important goal. Until we know that we are all just stabbing in the dark, but if we keep trying one of us may hit something.

Allow me to just point out that Geometric Algebra \neq Algebraic Geometry. I got confused about that at one point when I was a Ph.D. student and started learning some Geometric Algebra when what I really needed was Algebraic Geometry. Still, it was a very interesting diversion to see the mathematics of spinors presented in terms of GA.

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Philip,

You have an amazing ability to "defuse" situations. Ideas that I tend to reject rather strongly when described by others seem much more reasonable when you discuss them. That is a real talent, in my opinion. I also like that, when discussing some of the farther out ideas you note that "we should not get carried away by thinking they are less speculative or more testable than they...

view entire post

You have an amazing ability to "defuse" situations. Ideas that I tend to reject rather strongly when described by others seem much more reasonable when you discuss them. That is a real talent, in my opinion. I also like that, when discussing some of the farther out ideas you note that "we should not get carried away by thinking they are less speculative or more testable than they...

view entire post

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Eugene, thanks for going through my essay in such detail.

It is certainly the case that symmetry is being dissed from all sides at the moment. The importance of symmetry was drummed into me as part of my education and I have taken it too much for granted, so I am pleased that there is now some opposition to the idea. As well as the reference to string theorists in my essay you can find this in John Horgan's latest interview with Lee Smolin http://blogs.scientificamerican.com/cross-check/2015/01/04/t

roublemaker-lee-smolin-questions-if-physics-laws-are-timeles

s/

This forces me to question why I think symmetry is so important. Of course symmetry has been central to 20th century physics and is supported by experiment but that does not necessarily mean that there is more of it to be found. My main remaining justification is the argument I gave about holography, so if you have a different solution to the information loss puzzle I cannot hope to persuade you. Well we have to explore all the possibilities and each physicist will take one route, so this is good.

When I talk about different logical possibilities I think that different solutions to the laws of physics from different starting conditions are different logical pssibilities. I also think that your experience of this universe is a different logical possibility from my experience. I think that different laws of physics are no different from these different solutions. They are all different solutions of some higher meta-laws. Of course this is just one point of view.

I will be reading your essay soon

It is certainly the case that symmetry is being dissed from all sides at the moment. The importance of symmetry was drummed into me as part of my education and I have taken it too much for granted, so I am pleased that there is now some opposition to the idea. As well as the reference to string theorists in my essay you can find this in John Horgan's latest interview with Lee Smolin http://blogs.scientificamerican.com/cross-check/2015/01/04/t

roublemaker-lee-smolin-questions-if-physics-laws-are-timeles

s/

This forces me to question why I think symmetry is so important. Of course symmetry has been central to 20th century physics and is supported by experiment but that does not necessarily mean that there is more of it to be found. My main remaining justification is the argument I gave about holography, so if you have a different solution to the information loss puzzle I cannot hope to persuade you. Well we have to explore all the possibilities and each physicist will take one route, so this is good.

When I talk about different logical possibilities I think that different solutions to the laws of physics from different starting conditions are different logical pssibilities. I also think that your experience of this universe is a different logical possibility from my experience. I think that different laws of physics are no different from these different solutions. They are all different solutions of some higher meta-laws. Of course this is just one point of view.

I will be reading your essay soon

I think this idea of different possibilities/solutions is the key element in the new paradigm shift. In the past people thought there would be one nice quantum field theory that would tell us everything about particle physics and GR and all the parameters of physics could be derived from first principles, then these laws would have different solutions depending on different initial conditions, perhaps there would even be just one unique possibility for the initial conditions.

Now the view has changed so that the laws of physics are not thought ot be so fixed. For string theorists there is M-theory from which all other string theories can be derived as solutions with different vacua, then our universe is also just a solution which has this vacuum state. Lee Smolin also thinks this way when he talks about cosmic evolution. I take this further because I think that even M-theory is just one solution in a more general system of meta-laws which I imagine might be something like a free weak omega category. This is just an algebraic structure, perhaps the most general possible algebraic structure so that all other algebras are images of this structure under homomorhisms. This is how "solutions" are realised. To make this idea work you need to be able to project those algebraic structures onto geometry which is where the maths of algebraic geomerty come in to play. The pay-off for this way of thinking is that if all logical possibilities are included in the laws of physics then you dont need a magic spell to decide what the laws of physics become reality.

Now the view has changed so that the laws of physics are not thought ot be so fixed. For string theorists there is M-theory from which all other string theories can be derived as solutions with different vacua, then our universe is also just a solution which has this vacuum state. Lee Smolin also thinks this way when he talks about cosmic evolution. I take this further because I think that even M-theory is just one solution in a more general system of meta-laws which I imagine might be something like a free weak omega category. This is just an algebraic structure, perhaps the most general possible algebraic structure so that all other algebras are images of this structure under homomorhisms. This is how "solutions" are realised. To make this idea work you need to be able to project those algebraic structures onto geometry which is where the maths of algebraic geomerty come in to play. The pay-off for this way of thinking is that if all logical possibilities are included in the laws of physics then you dont need a magic spell to decide what the laws of physics become reality.

I noted your comment to Klingman’s essay. Those are the two popular views of math and physics.

For me the math and physics emerge together and are the same physical reality. Therefore, properties of math can be used to suggest the physics of reality. The difficult things of math can also imply things that don’t exist in physical reality such as mapping math and infinity. So the quantum math (not real) of Bell is incorrect which is shown by the de Broglie-Bohm interpretation that suggests the ``hidden variables’’. There are few papers written on this, I am aware of only one that takes this issue head-on that references earlier work that have been ignored. Klingman’s paper uses this to highlight how this works.

For me the prime thing to understand is the double--slit experiment with the Afshar’s experiments of which--way and single photon interference. This experiment is the key to understanding the world of the small. That was the subject of my previous paper on photon interference and current effort on the single photon interference. Newtonian mechanics must apply to create the wave (Bohm’s weakness) and direct the particle.

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For me the math and physics emerge together and are the same physical reality. Therefore, properties of math can be used to suggest the physics of reality. The difficult things of math can also imply things that don’t exist in physical reality such as mapping math and infinity. So the quantum math (not real) of Bell is incorrect which is shown by the de Broglie-Bohm interpretation that suggests the ``hidden variables’’. There are few papers written on this, I am aware of only one that takes this issue head-on that references earlier work that have been ignored. Klingman’s paper uses this to highlight how this works.

For me the prime thing to understand is the double--slit experiment with the Afshar’s experiments of which--way and single photon interference. This experiment is the key to understanding the world of the small. That was the subject of my previous paper on photon interference and current effort on the single photon interference. Newtonian mechanics must apply to create the wave (Bohm’s weakness) and direct the particle.

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John thanks for reading my essay. I am still looking at yours.

I an sure there will be many other ways of thinking about what came first in this contest besides the three you have highlighted here. My view is in sync with that of Max Tegmark who proposed that the existence of mathematics came first. I just see that as a tautological statement that there are logical possibilities for our world or experience and that these can be explored and understood using mathematics. The main idea I add is that of universality, i.e. that the uppermost meta-laws of physics come about because of a principle of universality or self-organisation within the "Ultimate Ensemble" as Tegmark calls it. Our universe is just one solution of these meta-laws which are much more general. (By the way I first wrote about these ideas in 1996 before I had read Tegmark's paper which appeared in 1997. the first piece I wrote about it can be found at http://www.karlin.mff.cuni.cz/~motl/Gibbs/tot.htm)

However, if I was cornered I would admit that the difference between starting with maths, physics or both together could just be a matter of philosophical interpretation. I just find it nicer to start from the mathematical possibilities because it leaves me with a sense that the existence of physical reality and the laws of physics are derived without a requirement for any unexplained process of design or arbitrary principle.

What really matters is how we can use these meta-physical ideas to say something about what the laws of physics are like. For you this involves an analysis of the two slit experiment and for me it is about the structure of physical law in terms of multiple quantisation, complete symmetry, algebraic geometry and the emergence of space, time, causality and the universe as we know it.

I an sure there will be many other ways of thinking about what came first in this contest besides the three you have highlighted here. My view is in sync with that of Max Tegmark who proposed that the existence of mathematics came first. I just see that as a tautological statement that there are logical possibilities for our world or experience and that these can be explored and understood using mathematics. The main idea I add is that of universality, i.e. that the uppermost meta-laws of physics come about because of a principle of universality or self-organisation within the "Ultimate Ensemble" as Tegmark calls it. Our universe is just one solution of these meta-laws which are much more general. (By the way I first wrote about these ideas in 1996 before I had read Tegmark's paper which appeared in 1997. the first piece I wrote about it can be found at http://www.karlin.mff.cuni.cz/~motl/Gibbs/tot.htm)

However, if I was cornered I would admit that the difference between starting with maths, physics or both together could just be a matter of philosophical interpretation. I just find it nicer to start from the mathematical possibilities because it leaves me with a sense that the existence of physical reality and the laws of physics are derived without a requirement for any unexplained process of design or arbitrary principle.

What really matters is how we can use these meta-physical ideas to say something about what the laws of physics are like. For you this involves an analysis of the two slit experiment and for me it is about the structure of physical law in terms of multiple quantisation, complete symmetry, algebraic geometry and the emergence of space, time, causality and the universe as we know it.

Hi Philip,

You essay was interesting. You do point out the apparent direction of physics that research usually pushes us into new areas of mathematics. Some eagerly embrace this and others have to be dragged kicking and screaming into it.

I do think there are possible trends into different mathematics. I would have to say that this is probably in the direction of category theory, motives and “magma,” and with that into HOTT, or HOmotopic Type Theory. This approach would reduce the salient mathematically based observables into topological invariants. The two slit experiment is a form of homotopy, and this further is expressable as a logic switching theory.

I don’t know if I will write an essay for this iteration. I do have a couple of ideas, but the whole business seems rather futile to me right now.

Cheers LC

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You essay was interesting. You do point out the apparent direction of physics that research usually pushes us into new areas of mathematics. Some eagerly embrace this and others have to be dragged kicking and screaming into it.

I do think there are possible trends into different mathematics. I would have to say that this is probably in the direction of category theory, motives and “magma,” and with that into HOTT, or HOmotopic Type Theory. This approach would reduce the salient mathematically based observables into topological invariants. The two slit experiment is a form of homotopy, and this further is expressable as a logic switching theory.

I don’t know if I will write an essay for this iteration. I do have a couple of ideas, but the whole business seems rather futile to me right now.

Cheers LC

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Lawrence, its good to see you are looking at the essays. I hope you will decide to write one too.

I think the idea of something like a magma as a starting point is very powerful. A magma is just a very general algebra with a binary operation, by imposing other conditions you get loops, semi-groups, groups etc. I see this as a model for what I referred to as the "cascade of solutions" in my...

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I think the idea of something like a magma as a starting point is very powerful. A magma is just a very general algebra with a binary operation, by imposing other conditions you get loops, semi-groups, groups etc. I see this as a model for what I referred to as the "cascade of solutions" in my...

view entire post

It would be interesting to see the foundations of mathematics necessary for physics reduced to groups, groupoids, monoids and categories such as motives in a Grothendiecke type of system. I have I think found a possible route towards this using discrete systems.

There are various entanglement schemes, and the GHZ entanglement is 1/8 supersymmetric. There are bipartite and tripartite...

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There are various entanglement schemes, and the GHZ entanglement is 1/8 supersymmetric. There are bipartite and tripartite...

view entire post

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Thank you for an interesting essay, Philip Gibbs

I agree strongly with the position you take on universality being the common bond between mathematics and physics. I do wonder if a universal property is that everything is unique, if we get precise enough in our measurements.

And I am responding to this sub-thread regarding foundations of mathematics mentioned by Prof. Crowell. We might need to consider the assumptions in the foundations of mathematics- especially as mathematics is applied to physics. In particular we assume our system of representing quantities (numeric representations) are adequate for what we can measure. What about things we might be unable to measure (today)? While we might be able to accomplish much of technology today using Rational numbers (we can only approximate Real numbers), we would be completely unable to build our technology with only fractions - a representational system for Rationals. The calculational power of decimals (and like based systems) far outstrips that of fractions. Might there be a more powerful system than the single-based numeric systems we use today that could manage calculations unthinkable today? Such a system would likely apply to a larger set of numbers and encompass operations not in our current systems (more universal). Being on the boundary of theoretic and applied mathematics, it could have a major impact on science as well.

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I agree strongly with the position you take on universality being the common bond between mathematics and physics. I do wonder if a universal property is that everything is unique, if we get precise enough in our measurements.

And I am responding to this sub-thread regarding foundations of mathematics mentioned by Prof. Crowell. We might need to consider the assumptions in the foundations of mathematics- especially as mathematics is applied to physics. In particular we assume our system of representing quantities (numeric representations) are adequate for what we can measure. What about things we might be unable to measure (today)? While we might be able to accomplish much of technology today using Rational numbers (we can only approximate Real numbers), we would be completely unable to build our technology with only fractions - a representational system for Rationals. The calculational power of decimals (and like based systems) far outstrips that of fractions. Might there be a more powerful system than the single-based numeric systems we use today that could manage calculations unthinkable today? Such a system would likely apply to a larger set of numbers and encompass operations not in our current systems (more universal). Being on the boundary of theoretic and applied mathematics, it could have a major impact on science as well.

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An earlier comment sent me to your comment on Klingman's essay, in which I noted "For you the physical world comes first and is unique while mathematics emerges in its many forms. For me the mathematical world is a unique structure from which many possible physical realities emerge." Whereas I couldn't find a point in your paper on which I felt a wish to hang my hat, those two sentences lead me to ask *how does mathematics ***emerge**? What kind of detector do we use and what kind of signal processing do we use to allow "mathematics" to "emerge"? It seems that we use the same body/senses and brain/mind to discover/invent physical structure as we use to discover/invent mathematical structure. An empiricist such as myself might think that the two are names for parts of the same thing, our evolving attempts to model, describe and to control some aspects of our continued existence (and that discover/invent presents a delicate demarcation problem), at progressive levels of abstraction.

I feel unable to engage with this FQXi topic in an essay because however much I have thought about it I have far too little knowledge of the literature, which I know, however, to be voluminous. So a teeny comment is as far as I will go.

Another earlier comment leads me to discover that you are the founder of viXra, for which Kudos.

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I feel unable to engage with this FQXi topic in an essay because however much I have thought about it I have far too little knowledge of the literature, which I know, however, to be voluminous. So a teeny comment is as far as I will go.

Another earlier comment leads me to discover that you are the founder of viXra, for which Kudos.

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Hello Peter, I think if people allowed "too little knowledge of the literature" to stand in their way there would be a lot fewer essays written for these contests, and that includes mine.

I am not sure about how mathematics might emerge either from physics or from nothing. Klingman has some nice ideas about emergence from physics using pattern regognition of whatever. My current view is...

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I am not sure about how mathematics might emerge either from physics or from nothing. Klingman has some nice ideas about emergence from physics using pattern regognition of whatever. My current view is...

view entire post

Hi Philip,

I am just curious how you think an AI could invent the concept of real numbers. If everything a computer can deal with is computable, how could a computer handle uncomputable real numbers (as opposed to computable reals such as pi or e) which have an infinite amount of information and cannot be referred to in any unambiguous way? The information content of most "real" numbers cannot be compressed. How would a computer define operations such as addition on these types of numbers?

Please check out my Digital Physics movie essay if you get the chance. I'd be interested to hear your thoughts.

Thanks,

Jon

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I am just curious how you think an AI could invent the concept of real numbers. If everything a computer can deal with is computable, how could a computer handle uncomputable real numbers (as opposed to computable reals such as pi or e) which have an infinite amount of information and cannot be referred to in any unambiguous way? The information content of most "real" numbers cannot be compressed. How would a computer define operations such as addition on these types of numbers?

Please check out my Digital Physics movie essay if you get the chance. I'd be interested to hear your thoughts.

Thanks,

Jon

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I think computers would understand real numbers the same way we do, through symbolic logic. You dont have to be able to understand every individual real number to be able to explore the properties of real numbers as a whole. This is the same for humans as it is for an AI. Mathematica and other symbolic logic programs can already handle real numbers in this sense.

Philip,

A very nice essay. I am also intrigued by the multiplicity of landscape solutions, and the thought that a priori we can only assume that all consistent vacuum solutions have equal probability of being correct. Such indetermination may not be an obstacle for progress though. We can certainly define the maths that use indeterminates and at some level, that might be enough. Curious as to what you think of just letting go of the idea that we will ever know the exact vacuum state.

Best,

Harlan

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A very nice essay. I am also intrigued by the multiplicity of landscape solutions, and the thought that a priori we can only assume that all consistent vacuum solutions have equal probability of being correct. Such indetermination may not be an obstacle for progress though. We can certainly define the maths that use indeterminates and at some level, that might be enough. Curious as to what you think of just letting go of the idea that we will ever know the exact vacuum state.

Best,

Harlan

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I think that once we know the rules for constructing the possible vacuum states it is going to be a huge challenge to work out exactly what it is.

It may turn out not to be so hard or it may be so hard that we can never work it out completely, either because the necessary experiments are out of reach or because the computation is too complex.

The most interesting scenario would be that it is possible but only after some very clever experimentation and computation, but we will have to accept whatever nature has in store for us.

It may turn out not to be so hard or it may be so hard that we can never work it out completely, either because the necessary experiments are out of reach or because the computation is too complex.

The most interesting scenario would be that it is possible but only after some very clever experimentation and computation, but we will have to accept whatever nature has in store for us.

Dear Sir,

You have raised some very important questions that can be answered only if we think out of the box. The problem is that we collect lots of data and without proper examination, reject most (like at LHC) that could have given us equally plausible ideas about the natural laws. Secondly, we follow the beaten path without reviewing it and reconciling the apparent contradictions that...

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You have raised some very important questions that can be answered only if we think out of the box. The problem is that we collect lots of data and without proper examination, reject most (like at LHC) that could have given us equally plausible ideas about the natural laws. Secondly, we follow the beaten path without reviewing it and reconciling the apparent contradictions that...

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Philip,

Thanks, for sharing your ideas. It is nice to see so many different points of views regarding this topic.

Best Regards,

-D.C.Adams

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Thanks, for sharing your ideas. It is nice to see so many different points of views regarding this topic.

Best Regards,

-D.C.Adams

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Professor Gibbs,

The new paradigm shift (from one Universe to multiple Universes) is hard even on Western thought. At first I was reticent but then... . It is actually amazing when one thinks about it compared to the concept of the one singular Universe our egocentric minds have somewhat logically been led to believe in (hard to let go). There are hints to the Meta-Laws. Frank Wilczsek...

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The new paradigm shift (from one Universe to multiple Universes) is hard even on Western thought. At first I was reticent but then... . It is actually amazing when one thinks about it compared to the concept of the one singular Universe our egocentric minds have somewhat logically been led to believe in (hard to let go). There are hints to the Meta-Laws. Frank Wilczsek...

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Philip,

Your mathematical description of doing frontier theoretical physics is noted. However I believe that there is a need to change our emphasis from the mathematical development to the physical model development.

In the past 100 years theoretical physics and cosmology developments have been conducted almost exclusively on a mathematical basis, leading to non-physical objects or processes such as fields, space-time, curvature in space-time, time dilation, length contraction, virtual particles, action at a distance, curled-up dimensions, Entanglement, Dark Energy, Dark Matter....etc. I believe that these abstract mathematical objects are different aspects of one physical model of our universe. Therefore I urge that we devote more efforts on the physical model development.

Regards,

Ken Seto

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Your mathematical description of doing frontier theoretical physics is noted. However I believe that there is a need to change our emphasis from the mathematical development to the physical model development.

In the past 100 years theoretical physics and cosmology developments have been conducted almost exclusively on a mathematical basis, leading to non-physical objects or processes such as fields, space-time, curvature in space-time, time dilation, length contraction, virtual particles, action at a distance, curled-up dimensions, Entanglement, Dark Energy, Dark Matter....etc. I believe that these abstract mathematical objects are different aspects of one physical model of our universe. Therefore I urge that we devote more efforts on the physical model development.

Regards,

Ken Seto

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I am what you call an amateur scientist. In 2001 I discovered what I thought something significant. I submitted a paper to the “American Physical Society, Physical Review D”, put up a web site, published a book: nothing. I discovered FQXi and thought it great. I have submitted contest entries with the simple hope that someone would review my material. Now, I have found viXra. The purpose of this note is to express extreme thanks for your involvement in that device. Now, I will continue to read your essay.

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Hi Philip,

multiplicity of the vacuum is the most promising idea of physics

see more www.fopi.info

attachments: standard_model.png

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multiplicity of the vacuum is the most promising idea of physics

see more www.fopi.info

attachments: standard_model.png

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Thank you for your well written essay.

I like your idea showing the symmetry between the complexity of mathematics and physics, going hand by hand. I am not sure they are attracted towards a point of universality. It is an interesting subject.

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I like your idea showing the symmetry between the complexity of mathematics and physics, going hand by hand. I am not sure they are attracted towards a point of universality. It is an interesting subject.

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Philip,

In my previous response, I said that I am sceptical about the universality.

The reason is not found in arguments, but in our position. We humans are close from our evolutionary relatives (for example chimpanzee). How can we pretend that our differences with them make us more susceptible of reaching “universality” more than they are?

In my view, understanding can be compared to a sense. From an evolutionary perspective, we humans may have developed this ability to perceive nature/our environment through another way. At first, our understandings were weak, fuzzy, black or white, but as this sense developed, our ability to perceive our environment became richer, varied and even colorful though it is still a long way to the deepness of visual perception.

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In my previous response, I said that I am sceptical about the universality.

The reason is not found in arguments, but in our position. We humans are close from our evolutionary relatives (for example chimpanzee). How can we pretend that our differences with them make us more susceptible of reaching “universality” more than they are?

In my view, understanding can be compared to a sense. From an evolutionary perspective, we humans may have developed this ability to perceive nature/our environment through another way. At first, our understandings were weak, fuzzy, black or white, but as this sense developed, our ability to perceive our environment became richer, varied and even colorful though it is still a long way to the deepness of visual perception.

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Christophe, the attraction towards universality is a feature of complexity theory and self organisation. Think about the theory of strange attractors in chaos theory for example. I dont think we fully understand why it works that way but it does.

I don't think a chimpanzee is qualitatively different from us. he is just a little less intelligent. It is not us that reach universailty, it is a feature of mathematics that arises independently of us. The only role we play is in establishing a selection criteria in that the solution to the equations of universality which is actually realised has to be able to support us. This is the anthropic principle and it applies to some extent to chimpanzees too.

I don't think a chimpanzee is qualitatively different from us. he is just a little less intelligent. It is not us that reach universailty, it is a feature of mathematics that arises independently of us. The only role we play is in establishing a selection criteria in that the solution to the equations of universality which is actually realised has to be able to support us. This is the anthropic principle and it applies to some extent to chimpanzees too.

Hi Philip,

It is interesting that we have partly similar opinions on the links between math and physics, that is, a mathematical Platonism carrying all possibilities, and the idea that the physical universe comes as a particular case of deep mathematical theories. Here are my remarks:

"It has been observed for years that the nature of physical laws appears fine-tuned for the convenience of life (...) Almost every natural occurring element of the periodic table plays some essential role in the making of multicellular life form."

Sorry, while a case for fine-tuning can be made indeed, I don't see it well expressed in this specific way. If I saw well, only few of the physical constants really matter in all crucial processes of the evolution of stars and nucleosynthesis, and they already need to be tuned to fulfill the vital requirements. This does not let many available degrees of freedom to also fine-tune the details of chemical composition, which is actually not so fine-tuned but more guided by its own rigid necessities (mathematically necessary list of nuclear orbitals).

To make water, hydrogen came first and did not need to be produced; oxygen is much needed but its abundance is no mystery, as 8 protons is a magic number for nucleus stability, not much sensitive to physical constants.

After oxygen, the next 3 most abundant elements in the Earth's crust are silicon, aluminum and iron. Silicon is only 2×10^-5 of mass in the human body, and "very few organisms have a use for it" (wikipedia). Aluminum "has no known function in biology". Iron is useful but in very small proportion only. Phosphorus is needed as 1% of mass of human body but it is only 0.1% of continental crust and 6×10^-8 the mass of sea water (as it better stays in rocks).

"Some physicists have speculated that there is an eternal process of inflation with vacua decaying to different solutions so that our own universe is just one bubble inside a larger arena. "

Hum, if I understand well it requires 2 inflation periods, one before and one after decay ; inflation before decay is natural, since, by definition, the void had higher energy, but then the problem is that for different possible lower levels the inflation needs to still go on for some time and then stop in a synchronized manner (but what would happen otherwise ?). Hard stuff.

"I think it is more parsimonious to accept that all solutions exist in some higher sense, whether inside or outside our universe (...) I take it as self-evident that logical possibilities exist even if only in some metaphorical sense that we don’t understand. It is just a way of saying that some things are possible"

I agree that, according to the nature of mathematics, all logical possibilities exist. However I see this as very clearly, formally defined and not mysterious at all, only subject to the well-understood limit of undecidability. As you should know, existence is a mathematical concept, expressed by a specific symbol, that only needs an axiomatic theory to describe the shape of a universe where it is interpreted. The typically suitable framework to state the existence of all mathematical possibilities, is set theory, which admits itself many possible variants to specify the details (due to the undecidability of existence of many kinds of infinite systems we cannot construct).

"What then would happen if we treat the whole of mathematics as a statistical physics system or as a path integral over the moduli space of all possible theories ? Would some universal behavior emerge that could describe the meta-laws of physics?"

A big problem to define an integral over a range of "all possibilities", is that it requires some kind of measure to compare their weights. Such a measure usually requires, at least, a kind of fixed size of a local part of body whose variations are considered at a time. However no such comparison is possible between infinite systems that cannot be precisely described by a common specific theoretical framework.

I think that before flying to such highly speculative, ill-defined generalizations (that I would consider not really mathematical anymore, since I see mathematics as the science of definiteness), you need to consider the obvious first step and particular case of application of such ideas of "admitting the coexistence of all possibilities" that combines the advantages of being very well-known and well-defined, a natural direct consequence of the known laws of physics, with a well-defined measure of the weight of the many possibilities that is very directly and massively verified by observations, and for which, at the same time, this idea of coexistence of all possibilities has the amazing advantage of being still highly controversial. You see what I mean ? Answer below.

You wrote "I was going to write about what might happen if there were only mathematicians and no physicists. How many ideas from physics would they invent without any input from the real world. You can imagine that they even have no direct contact with the physical world. They could just be brains in a vat left to ponder on logical problems. It may even be possible one day to see this happen using artificial intelligence. To be more specific we might program an AI system using Sparse Acataleptic Bayesian Inference algorithms to solve integer diophantine equations.(...) Diophantine equations are very rich in terms of the kind of mathematical tools are required to solve even simple cases."

This is quite interesting as I have a similar project of rebuilding mathematics from scratch, starting with purely logical concepts before reaching physics. I use my own intelligence instead of an AI system, and of course I do know much physics at the start but I care to put things into an optimal logical order so as to make every step appear sufficiently motivated by purely logical concerns without any feeling of arbitrariness nor external (physical) source of motivation or inspiration.

Though the properties, and proofs of properties, of integer diophantine equations may potentially involve lots of mathematics indeed, I'm afraid they would be a quite inefficient way of rebuilding maths from scratch. In fact, I guess the power of development of high mathematics is much less a matter of what problem is supposed to be tackled, than a matter of what kind of intelligence or algorithm is tackling it. Indeed, this AI needs to know from the start what is a proof and what is a definition that can be used to make shorter proofs... finally you need to give it a huge a priori knowledge of mathematics beyond diophantine equations, before it starts searching. But the worst point in my opinion is that, even considering deep mathematics as an intrinsic necessary reality to be discovered, I guess the act of discovering them may require a conscious mind (not AI) to be efficiently done. The concepts of elegance and universality in mathematics may be themselves diversely interpreted and not always in mathematically well-defined manners. Insofar as they would be mathematically definite, I would compare discovering deep maths to a problem of breaking a cryptographic key, for which the solution may indeed be mathematically unique and well-verifiable, but purely mathematical systems could not efficiently discover the solution themselves if it is not revealed from the outside.

Of course I was referring above to the many-worlds interpretation of quantum physics. The most famous difficulty with this interpretation is how to make sense of probabilities. You wrote "The Mathematical Universe Hypotheses tells us that all logical possibilities are equal". Consider the simple example of a polarized photon that is measured in another direction with an arbitrary angle. Both possible observed states are well-defined elementary states, not any variably large numbers of possible states, and have no intrinsic difference of quality having anything to do with the entropy of the measurement apparatus or whatever. Still the theory says one is more likely than the other, with a probability that can take any value depending on the angle of measurement. How to make sense of their difference of likeliness if they are equally real ? See my longer analysis of the paradoxes in this interpretation. Finally I invite you to read my essay where I defend another interpretation.

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It is interesting that we have partly similar opinions on the links between math and physics, that is, a mathematical Platonism carrying all possibilities, and the idea that the physical universe comes as a particular case of deep mathematical theories. Here are my remarks:

"It has been observed for years that the nature of physical laws appears fine-tuned for the convenience of life (...) Almost every natural occurring element of the periodic table plays some essential role in the making of multicellular life form."

Sorry, while a case for fine-tuning can be made indeed, I don't see it well expressed in this specific way. If I saw well, only few of the physical constants really matter in all crucial processes of the evolution of stars and nucleosynthesis, and they already need to be tuned to fulfill the vital requirements. This does not let many available degrees of freedom to also fine-tune the details of chemical composition, which is actually not so fine-tuned but more guided by its own rigid necessities (mathematically necessary list of nuclear orbitals).

To make water, hydrogen came first and did not need to be produced; oxygen is much needed but its abundance is no mystery, as 8 protons is a magic number for nucleus stability, not much sensitive to physical constants.

After oxygen, the next 3 most abundant elements in the Earth's crust are silicon, aluminum and iron. Silicon is only 2×10^-5 of mass in the human body, and "very few organisms have a use for it" (wikipedia). Aluminum "has no known function in biology". Iron is useful but in very small proportion only. Phosphorus is needed as 1% of mass of human body but it is only 0.1% of continental crust and 6×10^-8 the mass of sea water (as it better stays in rocks).

"Some physicists have speculated that there is an eternal process of inflation with vacua decaying to different solutions so that our own universe is just one bubble inside a larger arena. "

Hum, if I understand well it requires 2 inflation periods, one before and one after decay ; inflation before decay is natural, since, by definition, the void had higher energy, but then the problem is that for different possible lower levels the inflation needs to still go on for some time and then stop in a synchronized manner (but what would happen otherwise ?). Hard stuff.

"I think it is more parsimonious to accept that all solutions exist in some higher sense, whether inside or outside our universe (...) I take it as self-evident that logical possibilities exist even if only in some metaphorical sense that we don’t understand. It is just a way of saying that some things are possible"

I agree that, according to the nature of mathematics, all logical possibilities exist. However I see this as very clearly, formally defined and not mysterious at all, only subject to the well-understood limit of undecidability. As you should know, existence is a mathematical concept, expressed by a specific symbol, that only needs an axiomatic theory to describe the shape of a universe where it is interpreted. The typically suitable framework to state the existence of all mathematical possibilities, is set theory, which admits itself many possible variants to specify the details (due to the undecidability of existence of many kinds of infinite systems we cannot construct).

"What then would happen if we treat the whole of mathematics as a statistical physics system or as a path integral over the moduli space of all possible theories ? Would some universal behavior emerge that could describe the meta-laws of physics?"

A big problem to define an integral over a range of "all possibilities", is that it requires some kind of measure to compare their weights. Such a measure usually requires, at least, a kind of fixed size of a local part of body whose variations are considered at a time. However no such comparison is possible between infinite systems that cannot be precisely described by a common specific theoretical framework.

I think that before flying to such highly speculative, ill-defined generalizations (that I would consider not really mathematical anymore, since I see mathematics as the science of definiteness), you need to consider the obvious first step and particular case of application of such ideas of "admitting the coexistence of all possibilities" that combines the advantages of being very well-known and well-defined, a natural direct consequence of the known laws of physics, with a well-defined measure of the weight of the many possibilities that is very directly and massively verified by observations, and for which, at the same time, this idea of coexistence of all possibilities has the amazing advantage of being still highly controversial. You see what I mean ? Answer below.

You wrote "I was going to write about what might happen if there were only mathematicians and no physicists. How many ideas from physics would they invent without any input from the real world. You can imagine that they even have no direct contact with the physical world. They could just be brains in a vat left to ponder on logical problems. It may even be possible one day to see this happen using artificial intelligence. To be more specific we might program an AI system using Sparse Acataleptic Bayesian Inference algorithms to solve integer diophantine equations.(...) Diophantine equations are very rich in terms of the kind of mathematical tools are required to solve even simple cases."

This is quite interesting as I have a similar project of rebuilding mathematics from scratch, starting with purely logical concepts before reaching physics. I use my own intelligence instead of an AI system, and of course I do know much physics at the start but I care to put things into an optimal logical order so as to make every step appear sufficiently motivated by purely logical concerns without any feeling of arbitrariness nor external (physical) source of motivation or inspiration.

Though the properties, and proofs of properties, of integer diophantine equations may potentially involve lots of mathematics indeed, I'm afraid they would be a quite inefficient way of rebuilding maths from scratch. In fact, I guess the power of development of high mathematics is much less a matter of what problem is supposed to be tackled, than a matter of what kind of intelligence or algorithm is tackling it. Indeed, this AI needs to know from the start what is a proof and what is a definition that can be used to make shorter proofs... finally you need to give it a huge a priori knowledge of mathematics beyond diophantine equations, before it starts searching. But the worst point in my opinion is that, even considering deep mathematics as an intrinsic necessary reality to be discovered, I guess the act of discovering them may require a conscious mind (not AI) to be efficiently done. The concepts of elegance and universality in mathematics may be themselves diversely interpreted and not always in mathematically well-defined manners. Insofar as they would be mathematically definite, I would compare discovering deep maths to a problem of breaking a cryptographic key, for which the solution may indeed be mathematically unique and well-verifiable, but purely mathematical systems could not efficiently discover the solution themselves if it is not revealed from the outside.

Of course I was referring above to the many-worlds interpretation of quantum physics. The most famous difficulty with this interpretation is how to make sense of probabilities. You wrote "The Mathematical Universe Hypotheses tells us that all logical possibilities are equal". Consider the simple example of a polarized photon that is measured in another direction with an arbitrary angle. Both possible observed states are well-defined elementary states, not any variably large numbers of possible states, and have no intrinsic difference of quality having anything to do with the entropy of the measurement apparatus or whatever. Still the theory says one is more likely than the other, with a probability that can take any value depending on the angle of measurement. How to make sense of their difference of likeliness if they are equally real ? See my longer analysis of the paradoxes in this interpretation. Finally I invite you to read my essay where I defend another interpretation.

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Sylvian, thank you for your detailed points. These are all interesting things and I will give my responses one at a time. Overall I would say that these are things where different people have very different opinions and have been the subject of interesting debates. I recognise that my opinion is not likely to be the right one on everything but for the purposes of argument I will put my best case...

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Of course the details of modifications of chemistry would be very hard to find out but the main principles of dependence with respect to the fundamental constants are clear.

As for nucleosynthesis, we have this:

A fine-tuning of constants is needed for the Triple-alpha process: "^{8}Be + ^{4}He has almost exactly the energy of an excited state of ^{12}C...

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As for nucleosynthesis, we have this:

A fine-tuning of constants is needed for the Triple-alpha process: "

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Sylvian, thank you for these detailed and interesting points. The only thing I would add at this point is that the fine structure constant does not just affect the chemical bonds. It also affects nuclear stability because the electrostatic repulsion is balanced against the strong force. A small change would have a profound affect on which elements are stable.

I think it would be interesting nut hard exercise to work out the chemistry and nuclear properties of elements as constants vary. Until someone does that I am not sure what the real situation is.

I think it would be interesting nut hard exercise to work out the chemistry and nuclear properties of elements as constants vary. Until someone does that I am not sure what the real situation is.

Hurry back. I gave your essay a high score. Yours is one of the better of the lot here.

LC

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LC

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Dear Phillip,

I thought your essay was well done and very interesting. I am not sure that I understood it all, but I agree that the concept of universality is critically important (no pun intended) to understanding the underlying *process*, which I think we perceive as dualistic aspects of reality. I emphasize process because my life experience (my “lazy process” that includes graduate...

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I thought your essay was well done and very interesting. I am not sure that I understood it all, but I agree that the concept of universality is critically important (no pun intended) to understanding the underlying *process*, which I think we perceive as dualistic aspects of reality. I emphasize process because my life experience (my “lazy process” that includes graduate...

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The free weak Omega-category is one of the most abstract objects in math.

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Hello Philip,

I got what I expected. A nice and interesting submission. Looked to me more of a review of the topic. Although your Bio says you are a theoretical physicist, my understanding of your essay seems to make you look more like a 'physical mathematician' than a 'mathematical physicist'.

I have need for some clarification and to learn more...

You talk of Space as being 'emergent'. What does this mean in simple terms?

You also talk of vacua, are you taking vacua and space as synonymous or different?

Then, I challenge you with the question: Since you say the elephant is not to be envisaged as something that existed before the big bang and also ask “How do we exist?”,**can what exists perish?** If not, why not? If yes, can you make out a list of what exists, so we can apply the doctrine of perishability on them?

Best regards,

Akinbo

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I got what I expected. A nice and interesting submission. Looked to me more of a review of the topic. Although your Bio says you are a theoretical physicist, my understanding of your essay seems to make you look more like a 'physical mathematician' than a 'mathematical physicist'.

I have need for some clarification and to learn more...

You talk of Space as being 'emergent'. What does this mean in simple terms?

You also talk of vacua, are you taking vacua and space as synonymous or different?

Then, I challenge you with the question: Since you say the elephant is not to be envisaged as something that existed before the big bang and also ask “How do we exist?”,

Best regards,

Akinbo

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"You talk of Space as being 'emergent'. What does this mean in simple terms?"

If you were to write down a full mathematical model for the standard models of physics as we knoe them at the present time the first thing you would do is define a 4D spacetime geometry, then you add the particles and their dynamics. When we say spacetime is emergent we mean that at a deeper level that is not how it is done. Instead we would start with some mathematical structure that is not defined in space time, like a network of connected nodes or a matrix. These objects are then subject to some kind of mathematical rules that tell us what weight is given to each configuration. When we study the complex system this provides we would find emergent phenomena which look like the laws of physics we are familiar with including spacetime. This is what we mean when we say that spacetime is emergent. It would only have an aproximate existance that fades away of we examine it very closely.

An good analogy to this is the surface of a liquid such as the sea. We know that at a microscopic level the sea is just a collection of molecules that interact and when we right down a mathematical mode for this we do not define a surface, just the properties of the molecules, but under the right conditions a liquid surface is formed. The surface is an emergent geometrical phenomena with its own macroscopic dynamics. This does not mean that spacetime is made of something like molecules or that it has to exist within some other geometry. The way it emerges is probably very different but the principle of emergence is the same.

If you were to write down a full mathematical model for the standard models of physics as we knoe them at the present time the first thing you would do is define a 4D spacetime geometry, then you add the particles and their dynamics. When we say spacetime is emergent we mean that at a deeper level that is not how it is done. Instead we would start with some mathematical structure that is not defined in space time, like a network of connected nodes or a matrix. These objects are then subject to some kind of mathematical rules that tell us what weight is given to each configuration. When we study the complex system this provides we would find emergent phenomena which look like the laws of physics we are familiar with including spacetime. This is what we mean when we say that spacetime is emergent. It would only have an aproximate existance that fades away of we examine it very closely.

An good analogy to this is the surface of a liquid such as the sea. We know that at a microscopic level the sea is just a collection of molecules that interact and when we right down a mathematical mode for this we do not define a surface, just the properties of the molecules, but under the right conditions a liquid surface is formed. The surface is an emergent geometrical phenomena with its own macroscopic dynamics. This does not mean that spacetime is made of something like molecules or that it has to exist within some other geometry. The way it emerges is probably very different but the principle of emergence is the same.

Thanks Philip,

That analogy was very helpful in understanding the mysterious adjective "emergent". Unfortunately you point out that the analogy does not go all the way down by saying, "This does not mean that spacetime is made of something like molecules or that it has to exist within some other geometry". If you had not put up this red flag, I would have wanted to interrogate your position to see or bring out any illogicalities therein, if present.

Nevertheless, if I may use the opportunity to do some 'dialectic':

- is it only space-time that can be entitled to the adjective "emergent" or can space itself before being wedded to time by Minkowski also have a claim to the title "emergent"?

- In your model, is a length infinitely divisible into positions or is there a finite limit to the number of positions available on a given length?

- When gravitational waves travel, it is said that spacetime is distorted with alternate lengthening and shortening of a given length orthogonal to the direction of wave travel. If I am right, can something that is not made of anything discrete vibrate? Don't you think that the coincidence of gravitational waves and light travelling at*c* , may suggest that perhaps they are similarly propagated and share a spectrum, just as the finding that light travel at same velocity as the electro-magnetic waves predicted by Maxwell and verified by Hertz resulted in the classification of light as belonging to the spectrum of electromagnetic waves.

You may not like my essay being a hard-core physicist but please take a look when you can spare the time. The ideas are directly opposite to your viewpoint. Also you probably find confusing my other questions about what exists subsequently perishing so I spare you the agony, worrying what I mean.

All the best in the competition. And God bless your idea of setting up your non-discriminatory vixra.

Regards,

Akinbo

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That analogy was very helpful in understanding the mysterious adjective "emergent". Unfortunately you point out that the analogy does not go all the way down by saying, "This does not mean that spacetime is made of something like molecules or that it has to exist within some other geometry". If you had not put up this red flag, I would have wanted to interrogate your position to see or bring out any illogicalities therein, if present.

Nevertheless, if I may use the opportunity to do some 'dialectic':

- is it only space-time that can be entitled to the adjective "emergent" or can space itself before being wedded to time by Minkowski also have a claim to the title "emergent"?

- In your model, is a length infinitely divisible into positions or is there a finite limit to the number of positions available on a given length?

- When gravitational waves travel, it is said that spacetime is distorted with alternate lengthening and shortening of a given length orthogonal to the direction of wave travel. If I am right, can something that is not made of anything discrete vibrate? Don't you think that the coincidence of gravitational waves and light travelling at

You may not like my essay being a hard-core physicist but please take a look when you can spare the time. The ideas are directly opposite to your viewpoint. Also you probably find confusing my other questions about what exists subsequently perishing so I spare you the agony, worrying what I mean.

All the best in the competition. And God bless your idea of setting up your non-discriminatory vixra.

Regards,

Akinbo

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"is it only space-time that can be entitled to the adjective "emergent" or can space itself before being wedded to time by Minkowski also have a claim to the title "emergent"?"

Either or neither or both could be correct. I favour the view that space and time are both emergent as one unified space-time structure. If you want to read about a different point of view you could look at Lee Smolin's essay. His idea is that time is fundamental but space is emergent. I dont like that idea for numerous reasons but we dont know yet how it works so it is good that there are people exploring different possibilities.

Either or neither or both could be correct. I favour the view that space and time are both emergent as one unified space-time structure. If you want to read about a different point of view you could look at Lee Smolin's essay. His idea is that time is fundamental but space is emergent. I dont like that idea for numerous reasons but we dont know yet how it works so it is good that there are people exploring different possibilities.

Hello Philip,

I very much enjoyed reading your essay and I am very much in agreement with your view that we are ready for a paradigm shift in fundamental physics.

My own feeling is that the unification will not come from trying to extend existing models to include gravity but rather by understanding how gravity provides the right model for understanding all fundamental forces.

I hope you will take the time to read my essay which is titled Solving the Mystery and give me your comments.

With best regards

Richard Lewis

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I very much enjoyed reading your essay and I am very much in agreement with your view that we are ready for a paradigm shift in fundamental physics.

My own feeling is that the unification will not come from trying to extend existing models to include gravity but rather by understanding how gravity provides the right model for understanding all fundamental forces.

I hope you will take the time to read my essay which is titled Solving the Mystery and give me your comments.

With best regards

Richard Lewis

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The ordering of meta-physical aspects is more imposing subject of talk.

Sincerely,

Miss. Sujatha Jagannathan

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Sincerely,

Miss. Sujatha Jagannathan

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Dear Philip,

a central point in your essay is universality. A mathematical structure is more universal - more discovered than invented - when it is instantiated in more structures that superficially appear different from one another; and a physical law is more universal when it describes more physical systems that appear different from one another in some aspects (e.g. different particle...

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a central point in your essay is universality. A mathematical structure is more universal - more discovered than invented - when it is instantiated in more structures that superficially appear different from one another; and a physical law is more universal when it describes more physical systems that appear different from one another in some aspects (e.g. different particle...

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Tommaso, thank you for your comment. It is good to see you in the contest again.

You have made a very astute point which is not lost on me although space constraints meant I did not say much about it in the essay. If you look at the paper by Seth Lloyd "The universal path integral" which I have cited you will see that he concentrates on algorithms. This may be very close to the kind of approach you are thinking of.

There are a couple of reasons why I did not want to focus on algorithms myself even though the universaltiy of computing is certainly very relevant here. One thing is that computers tend to run calculations forward in one direction. A normal sequential program has a time ordering in its calculations. This may be relaxed in a parallel programming architecture but there is still a partial ordering which people will inevitably try to link to temporal causality. As I said in my essay I dont think this kind of causality is important. I aknowledge that you could work with algroithms without making this connection.

The other thing is that path integrals are not just sums over configurations. When you have fermions the sum is replaced with an algebraic integral over grassman varuables. I suspect that the universality we see in maths and physics is also more general in this way. It is an algebraic principle that we do not understand and the kind of universality you get in statistical ensembles is just a good metaphor for that. The universality in computing is a little different again and it fits in somewhere, but here I tried to convey the idea of some other kind of self-referntial, self-organising universality that we understand very little about.

I look forward to reading your essay a little later

You have made a very astute point which is not lost on me although space constraints meant I did not say much about it in the essay. If you look at the paper by Seth Lloyd "The universal path integral" which I have cited you will see that he concentrates on algorithms. This may be very close to the kind of approach you are thinking of.

There are a couple of reasons why I did not want to focus on algorithms myself even though the universaltiy of computing is certainly very relevant here. One thing is that computers tend to run calculations forward in one direction. A normal sequential program has a time ordering in its calculations. This may be relaxed in a parallel programming architecture but there is still a partial ordering which people will inevitably try to link to temporal causality. As I said in my essay I dont think this kind of causality is important. I aknowledge that you could work with algroithms without making this connection.

The other thing is that path integrals are not just sums over configurations. When you have fermions the sum is replaced with an algebraic integral over grassman varuables. I suspect that the universality we see in maths and physics is also more general in this way. It is an algebraic principle that we do not understand and the kind of universality you get in statistical ensembles is just a good metaphor for that. The universality in computing is a little different again and it fits in somewhere, but here I tried to convey the idea of some other kind of self-referntial, self-organising universality that we understand very little about.

I look forward to reading your essay a little later

Dear Philip,

I read your essay with great interest. I totally agree with you: we need a new paradigm in basic science. To do this, need to consider the "universal point" as ontological "proto- existential - extremum". But not "meta-laws", only one "law of laws" -**"Logos"**. My high score.I think that we must first to consider the proto-structure of the Universum (matter) from the point of view of eternity (*"sub specie aeternitatis"*), that is, to carry out the ontological structure of matter in the proto-era, "time before times began". When we "grab" (understand) the primordial (ontological) structure of space, then we will understand the nature of time. Therefore, we must move from the concept of "space-time" to the concept of "space-matter-time", which represents the ontological unity of the Universum. The primordial structure of matter determines the structure of the language in which Nature speaks to us, single language for mathematicians, physicists and poets , ie, language that contains all the meanings of the "LifeWorld" (E.Husserl).I invite you to read my essay .

Kind regards,

Vladimir

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I read your essay with great interest. I totally agree with you: we need a new paradigm in basic science. To do this, need to consider the "universal point" as ontological "proto- existential - extremum". But not "meta-laws", only one "law of laws" -

Kind regards,

Vladimir

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Dear Dr. Gibbs,

I read your essay with great interest.

I note your citing of the parable of the blind men and the elephant, as a metaphor for incomplete knowledge. However, I think that abstract theories inferred from incomplete knowledge can be more pernicious than the lack of knowledge itself. Such mathematical theories can act to narrow the mind and blind the vision.

You might be interested in reading my own essay, "Remove the Blinders: How Mathematics Distorted the Development of Quantum Theory". I argue that premature adoption of an abstract mathematical framework prevented consideration of a simple, consistent, realistic model of quantum mechanics, avoiding paradoxes of indeterminacy, entanglement, and non-locality. What’s more, this realistic model is directly testable using little more than Stern-Gerlach magnets.

But questioning the foundations in this way is considered heretical, and is unpublishable in physics journals.

Alan Kadin

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I read your essay with great interest.

I note your citing of the parable of the blind men and the elephant, as a metaphor for incomplete knowledge. However, I think that abstract theories inferred from incomplete knowledge can be more pernicious than the lack of knowledge itself. Such mathematical theories can act to narrow the mind and blind the vision.

You might be interested in reading my own essay, "Remove the Blinders: How Mathematics Distorted the Development of Quantum Theory". I argue that premature adoption of an abstract mathematical framework prevented consideration of a simple, consistent, realistic model of quantum mechanics, avoiding paradoxes of indeterminacy, entanglement, and non-locality. What’s more, this realistic model is directly testable using little more than Stern-Gerlach magnets.

But questioning the foundations in this way is considered heretical, and is unpublishable in physics journals.

Alan Kadin

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Interesting essay. You frame a hypothesis of the existence of meta-laws. You write:

"At the same time technological progress will enable new empirical observations to help us understand inflation, dark matter, proton decay and other subtle phenomena that help to chart our course through the ontological realm to where we stand in it. They will enable us to pick out the universe’s particular solution to the algebraic meta-laws."

AFAIK< and I may be wrong, so far science works the other way around (Higgs particle for example):our models make a prediction and we try to falsify in or verify it.

You allude to a procedure in which experiments will determine the selection of meta-laws. How can we look for something we do not know what it is? (Knowledge Paradox). Besides, we are far from making experiments at the Planck scale. If meta-laws exist, you think we will find them by experimentation without a formal framework of what we are looking for? Thanks.

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"At the same time technological progress will enable new empirical observations to help us understand inflation, dark matter, proton decay and other subtle phenomena that help to chart our course through the ontological realm to where we stand in it. They will enable us to pick out the universe’s particular solution to the algebraic meta-laws."

AFAIK< and I may be wrong, so far science works the other way around (Higgs particle for example):our models make a prediction and we try to falsify in or verify it.

You allude to a procedure in which experiments will determine the selection of meta-laws. How can we look for something we do not know what it is? (Knowledge Paradox). Besides, we are far from making experiments at the Planck scale. If meta-laws exist, you think we will find them by experimentation without a formal framework of what we are looking for? Thanks.

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Science works both ways. Sometimes theorists make predictions that are then verified by scinece, but sometimes experienters find things that were not predicted and theorists have to find the right theory for them. There are plenty of examples of the latter e.g. the muon, law of black body radiation, constancy of the speed of light etc.

Particle accelerators search for predicted particles but they can also find things that were not predicted. This is done by continually measuring every quatity at higher and higher energies and checking to see whether they match predictions from accepted theory.

While accelerators are limited in energy scale, the other experiments I mentioned are not. proton decay could give us information about the GUT scale for example.

You dont need a formal framework to find something new. As soon as something does not match the existing framwork you can start looking for what might explain it.

Particle accelerators search for predicted particles but they can also find things that were not predicted. This is done by continually measuring every quatity at higher and higher energies and checking to see whether they match predictions from accepted theory.

While accelerators are limited in energy scale, the other experiments I mentioned are not. proton decay could give us information about the GUT scale for example.

You dont need a formal framework to find something new. As soon as something does not match the existing framwork you can start looking for what might explain it.

Dear Dr. Gibbs,

I think the meadow of physics is marred by mathematical demons. So I was happy when FQXI announced the subject for this year's essay competition. The first essay I read was yours. Instantly, I identified you as a 'mathematicalist' trying to impose the rule of mathematics in the domain of physics.

The way you have written, however, is impressive that any one reluctant...

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I think the meadow of physics is marred by mathematical demons. So I was happy when FQXI announced the subject for this year's essay competition. The first essay I read was yours. Instantly, I identified you as a 'mathematicalist' trying to impose the rule of mathematics in the domain of physics.

The way you have written, however, is impressive that any one reluctant...

view entire post

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Dear Dr. Gibbs,

after a second try I still have to admit not to understand most of your certainly excellent statements. It is a fact that mathematical constructs are difficult to translate into comprehensible physical meaning. Or, is it a trick to confuse those with a desire to understan?

Anyway, the theoreticians have an easy life. Nobody can refute your theories such as multiverses since there are no empirical facts. It sounds to me more like philosophy or clairvoyance.

I wish you good luck with your further work

Best

Lutz

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after a second try I still have to admit not to understand most of your certainly excellent statements. It is a fact that mathematical constructs are difficult to translate into comprehensible physical meaning. Or, is it a trick to confuse those with a desire to understan?

Anyway, the theoreticians have an easy life. Nobody can refute your theories such as multiverses since there are no empirical facts. It sounds to me more like philosophy or clairvoyance.

I wish you good luck with your further work

Best

Lutz

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Susanne, the audience here has a wide range of levels of expertise so it is difficult to get it right for everyone. I have never seen these essays as an exercise in science popularization, but I have not included any equations as some people do here. That is my best compromise. I want to say something substantive to people who are familiar with the subject. If I did not mention the specific concepts I am referring to everything would be too vague, and if I attempted to explain them for those less familiar the essay would be ten times as long. Any of the terms used can be skipped and just accepted as something you don't know about, or they can be looked up. I hope you managed to get something out of it.

The topic for this essay is deeply philosophical so I make no apologies for the fact that my essay is philosophical and meta-physical. This kind of thinking is very important at the frontiers of theoretical physics where strongly help assumptions sometimes need to be given up to make progress. It is not testable in its own right but the idea is that it should guide thinking towards new ideas that would be testable. The route from foundational thinking to experimental checking is very long these days and will take many steps and many years. To complain that each step cannot be empirically tested or refuted misses the point of how science is being done. Note that my essay does not use the word multiverse which has been used to describe too many different things.

The other thing that philosophical thinking does is to provide an interpretation of physical theories. I think that is important too if we want to understand where we fit in the grand scheme of things, rather than merely finding practical uses for science.

The topic for this essay is deeply philosophical so I make no apologies for the fact that my essay is philosophical and meta-physical. This kind of thinking is very important at the frontiers of theoretical physics where strongly help assumptions sometimes need to be given up to make progress. It is not testable in its own right but the idea is that it should guide thinking towards new ideas that would be testable. The route from foundational thinking to experimental checking is very long these days and will take many steps and many years. To complain that each step cannot be empirically tested or refuted misses the point of how science is being done. Note that my essay does not use the word multiverse which has been used to describe too many different things.

The other thing that philosophical thinking does is to provide an interpretation of physical theories. I think that is important too if we want to understand where we fit in the grand scheme of things, rather than merely finding practical uses for science.

Dear Philip,

A very interesting approach of the ontology of math indeed.

As an architect I fully support the idea that it is the geomtrical aspects of the universe we should focuss more.

Then more thinkig out of the box seem to be possible, which even could lead to our understanding of the golden mean of the penta dodecahedron multiverse

attachments: Big_Bang_MWI_1.jpg

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A very interesting approach of the ontology of math indeed.

As an architect I fully support the idea that it is the geomtrical aspects of the universe we should focuss more.

Then more thinkig out of the box seem to be possible, which even could lead to our understanding of the golden mean of the penta dodecahedron multiverse

attachments: Big_Bang_MWI_1.jpg

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Dear Sir,

Thank you for the essay but for someone like me who is trained in another field of science is was quite incomprehensible. I thought that FQXi essays target a general audience. Someone once said that if a scientist cannot explain what he means in a few sentences then he probably lack understanding of what he means. I get the impressions you are trying to impress people more than to educate them. With all respect of course...

Alex Newman

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Thank you for the essay but for someone like me who is trained in another field of science is was quite incomprehensible. I thought that FQXi essays target a general audience. Someone once said that if a scientist cannot explain what he means in a few sentences then he probably lack understanding of what he means. I get the impressions you are trying to impress people more than to educate them. With all respect of course...

Alex Newman

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Dear Philip,

You wrote:

“Thus we learn finally that there is no mysterious force that defines our consciousness.

We have no existence beyond our journey in this material world.”

However, No extra mysterious force is needed to understand local or universal entanglement between mirror symmetric particles at large distances right?

So if the universe has mirror symmetry, from the start, then we live in one of the two ( or even more) instant entangled symmetric universes.

Then Max Tegmark is right if he suggest that there is a copy person over there who also read these letters ! at the same moment.

See: Democratic Free Will in the Instant Entangled Multiverse.

http://vixra.org/pdf/1401.0071v2.pdf

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You wrote:

“Thus we learn finally that there is no mysterious force that defines our consciousness.

We have no existence beyond our journey in this material world.”

However, No extra mysterious force is needed to understand local or universal entanglement between mirror symmetric particles at large distances right?

So if the universe has mirror symmetry, from the start, then we live in one of the two ( or even more) instant entangled symmetric universes.

Then Max Tegmark is right if he suggest that there is a copy person over there who also read these letters ! at the same moment.

See: Democratic Free Will in the Instant Entangled Multiverse.

http://vixra.org/pdf/1401.0071v2.pdf

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Hi Philip,

Sorry I was not able to cope with the subject.

Perhaps an other time or perhaps ablog post

However indeed the relation between Math and physics for me is sort of a problem.

Pehaps you remember that Gerard 't Hooft my topological string model declined because my model did not fit into known math sustems.

I believe that OUR COMPLEX WORLD can not be described by FORMULAS ALONE. WHY? Because we don't know why the universe is as it is. An example: “Finetuning”: Why are the "fundamental constants" constant? My suggestion: because the sub-quantum FORM of particles and the Higgs vacuum lattice have a certain form and play a game with us.. So I designed simple convertible shapes for real QUANTUM particle information use. At the same time I realized that black holes should also have some nuclear form and as a result I found that dark matter is related to black holes and Higgs particles have only energetic mass inside an oscillating Higgs vacuum lattice. Multiverse based mirror symmetric consciousness (entanglement) is assumed to be the base for all particle- wave -and human guidance or wavefunction collapse. SEE: https://www.flickr.com/photos/93308747@N05/?details=1and: http://vixra.org/author/leo_vuyk

I am an architect who is interested in the possible sub-quantum particle FORM as information medium and building blocks in nature. I also focus on the possible dynamical FORM transformation aspects in micro- and macro physics as a base for dark matter black holes, the Higgs field vacuum and the Big bang. see also:

attachments: STEPHEN_HAWKING_1.jpg, YELLOW_BALLS_2.jpg

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Sorry I was not able to cope with the subject.

Perhaps an other time or perhaps ablog post

However indeed the relation between Math and physics for me is sort of a problem.

Pehaps you remember that Gerard 't Hooft my topological string model declined because my model did not fit into known math sustems.

I believe that OUR COMPLEX WORLD can not be described by FORMULAS ALONE. WHY? Because we don't know why the universe is as it is. An example: “Finetuning”: Why are the "fundamental constants" constant? My suggestion: because the sub-quantum FORM of particles and the Higgs vacuum lattice have a certain form and play a game with us.. So I designed simple convertible shapes for real QUANTUM particle information use. At the same time I realized that black holes should also have some nuclear form and as a result I found that dark matter is related to black holes and Higgs particles have only energetic mass inside an oscillating Higgs vacuum lattice. Multiverse based mirror symmetric consciousness (entanglement) is assumed to be the base for all particle- wave -and human guidance or wavefunction collapse. SEE: https://www.flickr.com/photos/93308747@N05/?details=1and: http://vixra.org/author/leo_vuyk

I am an architect who is interested in the possible sub-quantum particle FORM as information medium and building blocks in nature. I also focus on the possible dynamical FORM transformation aspects in micro- and macro physics as a base for dark matter black holes, the Higgs field vacuum and the Big bang. see also:

attachments: STEPHEN_HAWKING_1.jpg, YELLOW_BALLS_2.jpg

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Dear Sir,

Dimension is the perception of differentiation between the internal structural space and external relational space of objects. Since we perceive through electromagnetic interaction, where the electric and magnetic fields are perpendicular to each other and both move perpendicularly, we have three mutually perpendicular dimensions. These are invariant under mutual transformation...

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Dimension is the perception of differentiation between the internal structural space and external relational space of objects. Since we perceive through electromagnetic interaction, where the electric and magnetic fields are perpendicular to each other and both move perpendicularly, we have three mutually perpendicular dimensions. These are invariant under mutual transformation...

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basudeba, the "unexplained" questions you ask about string theory are very ordinary questions whose answers are well understood by string theorists. I am afraid you will just have to accept that it is only to you that they are not explained or understood.

The "new way of thinking" is not "giving up" . That is just the opinion of the old guard who does not understand the unexpected truths that new discoveries are telling us. That has always been the way science has progressed.

The "new way of thinking" is not "giving up" . That is just the opinion of the old guard who does not understand the unexpected truths that new discoveries are telling us. That has always been the way science has progressed.

Dear Pilip,

I like your statement: "layers of speculations" are needed etc. because I also think that this out of the box thinking could be productive.

IMHO:

I think that Stephen Hawking did not calculate with the possibility of a chiral oscillating Higgs field vacuum lattice combined with propeller shaped Fermions. Then, Electrons and positrons could both pushed away from...

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I like your statement: "layers of speculations" are needed etc. because I also think that this out of the box thinking could be productive.

IMHO:

I think that Stephen Hawking did not calculate with the possibility of a chiral oscillating Higgs field vacuum lattice combined with propeller shaped Fermions. Then, Electrons and positrons could both pushed away from...

view entire post

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I am not sure if comments are working here. I had two notifications of comments but nothing has appeared.

Excellent paper Phil,

I like the way you would re-frame our treatment of the vacuum, and I agree that a multiplicity or landscape of vacuum state solutions is a feature of a large class of quantum gravity candidate theories, not only Strings. I like the way you informed us about how the concept of an algebra can be generalized, and about the free Lie algebra - which is new to me, but obviously significant. Also; I like that you weave in higher category theory, as I savvy that the category theoretic framework can subsume a lot of other Maths.

Well done!

Jonathan

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I like the way you would re-frame our treatment of the vacuum, and I agree that a multiplicity or landscape of vacuum state solutions is a feature of a large class of quantum gravity candidate theories, not only Strings. I like the way you informed us about how the concept of an algebra can be generalized, and about the free Lie algebra - which is new to me, but obviously significant. Also; I like that you weave in higher category theory, as I savvy that the category theoretic framework can subsume a lot of other Maths.

Well done!

Jonathan

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Dear Philip,

In Grothendieck's 'dessins d'enfants' all is about a two-generator free group, as I am rediscovering step by step with Magma, motivated by the application to quantum observables and contextuality. Reading your wide range excellent essay, I start to be convinced that playing with free algebra over the appropriate rings, new territories of understanding may be reached.

As you refer to topics also investigated in my essay, e.g. Moonshine, modularity and groups, I suspect you may be interested to read me. I would love to have some comments from your side.

Best,

Michel

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In Grothendieck's 'dessins d'enfants' all is about a two-generator free group, as I am rediscovering step by step with Magma, motivated by the application to quantum observables and contextuality. Reading your wide range excellent essay, I start to be convinced that playing with free algebra over the appropriate rings, new territories of understanding may be reached.

As you refer to topics also investigated in my essay, e.g. Moonshine, modularity and groups, I suspect you may be interested to read me. I would love to have some comments from your side.

Best,

Michel

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Dear Philip Gibbs,

"You talked about nature of physical laws and mathematical structures and then metaphysical structures to guide us in the development of physical theories. why we exist and why laws of physics are so steeped in mathematical abstraction.Uncovering the meta-laws is now the most important goal in our quest to understand the universe.

You also talked about referring...

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"You talked about nature of physical laws and mathematical structures and then metaphysical structures to guide us in the development of physical theories. why we exist and why laws of physics are so steeped in mathematical abstraction.Uncovering the meta-laws is now the most important goal in our quest to understand the universe.

You also talked about referring...

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attachments: vivekanada_universe.pdf

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Dear Pankaj Mani, thank you for your detailed analysis.

I agree that the question about conciousness is very relevant to this topic. There is a lot to say about it and I could not possibly have fitted the subject into the space for this essay. What I hope is that a future essay topic will ask that question so that I can write about it at length. Meanwhile I am always glad to see other people bringing it up.

regards

Phil

I agree that the question about conciousness is very relevant to this topic. There is a lot to say about it and I could not possibly have fitted the subject into the space for this essay. What I hope is that a future essay topic will ask that question so that I can write about it at length. Meanwhile I am always glad to see other people bringing it up.

regards

Phil

Hi Philip,

Last essay contest I had a system that created QM from just pure random numbers" reality is a mathematical structure". This year's essay has much more astonishing results and I have put in the links (at the end of the sections) to the JavaScripts program, which I am sure you have no problem with. Although I know you are a busy man.

Philip, I am relying on you since I don't seem to have too many customers here. It is ironic that often people say "show me the math" and cut the word salad, and now when I show it, they don't want to bother and it seems like they are saying "bring on the word salad"!

Essay

Thanks and good luck.

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Last essay contest I had a system that created QM from just pure random numbers" reality is a mathematical structure". This year's essay has much more astonishing results and I have put in the links (at the end of the sections) to the JavaScripts program, which I am sure you have no problem with. Although I know you are a busy man.

Philip, I am relying on you since I don't seem to have too many customers here. It is ironic that often people say "show me the math" and cut the word salad, and now when I show it, they don't want to bother and it seems like they are saying "bring on the word salad"!

Essay

Thanks and good luck.

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Dear Philip,

Your statement, ‘SUSY is a natural consequence of string theory and would account for fine-tuning of the Higgs mechanism’, indicates the imperativeness for the string theory to be modified. Thus we may think of another set of principles with strings, in that, field with matter is ascribed as single unit of eigen-rotational string-segment. Thus the Univacuum and the Multiplicity of the vacuum, that are descriptive with Space time foam and Spin-foams by String Vaccuua, is differently interpreted with an alternative paradigm of Universe; that is used for a comparative analysis in my essay, ‘ Before the Primordial Geometric origin: The Mysterious connection between Physics and Mathematics’. Hope you may enjoy in reading that.

With best wishes,

Jayakar

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Your statement, ‘SUSY is a natural consequence of string theory and would account for fine-tuning of the Higgs mechanism’, indicates the imperativeness for the string theory to be modified. Thus we may think of another set of principles with strings, in that, field with matter is ascribed as single unit of eigen-rotational string-segment. Thus the Univacuum and the Multiplicity of the vacuum, that are descriptive with Space time foam and Spin-foams by String Vaccuua, is differently interpreted with an alternative paradigm of Universe; that is used for a comparative analysis in my essay, ‘ Before the Primordial Geometric origin: The Mysterious connection between Physics and Mathematics’. Hope you may enjoy in reading that.

With best wishes,

Jayakar

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Dear Philip,

Thank you for your essay, excellent as always, stimulating reflection. But it is not about praising. Let us start a discussion.

I do not agree with your interpretation of Tegmark’s Mathematical Universe Hypothesis… You argue that “such ideas are about concepts beyond our ordinary experience for which we do not have predefined words. To think about them we can only...

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Thank you for your essay, excellent as always, stimulating reflection. But it is not about praising. Let us start a discussion.

I do not agree with your interpretation of Tegmark’s Mathematical Universe Hypothesis… You argue that “such ideas are about concepts beyond our ordinary experience for which we do not have predefined words. To think about them we can only...

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Jacel, thanks for your interesting points. We aeem to take different philosophical views. You prefer geometry and I prefer algebra for one thing. Of course I cannot say that I am right and you are wrong. That remains to be seen, or perhaps the truth will be neither or both. All we can do is each take our ideas to their conclusions and see which result fits nature.

"Is there any possibility to get an experimental confirmation of the statement that space and time are emergent? "

That could only be done directly by an experiment so cataclismic that it tears space and time apart. However, indirectly we can find the right TOE and use other more doable experiments to check it. The answer will then come indirectly from that TOE. We will never be totally sure that the TOE is completely correct unless we tests everything it can predict including things like the emergence of space and time, but I hope that once we have the answer it will be something sufficiently convincing.

"Is there any possibility to get an experimental confirmation of the statement that space and time are emergent? "

That could only be done directly by an experiment so cataclismic that it tears space and time apart. However, indirectly we can find the right TOE and use other more doable experiments to check it. The answer will then come indirectly from that TOE. We will never be totally sure that the TOE is completely correct unless we tests everything it can predict including things like the emergence of space and time, but I hope that once we have the answer it will be something sufficiently convincing.

Thank you Philip for the response.

I agree that we will never be totally sure that the theory is completely correct unless we test everything it can predict. However I would not include the emergence of space and time (this just seems to me too speculative). I guess that if we uncovered in nature these five exotic Riemannian manifolds: S2 × R, H2 × R, SL(2, R), Nil and Solv geometry, it would be convincing enough that the geometrization conjecture is the first physical theorem. And the theorem we cannot falsify. But, apparently, at the moment we have to wait. But not so long. As I have mentioned, Torsten Asselmayer-Maluga’s works are my hope to show the direction for future experiments. He now works on NIL, SOLV and SL2.

Best,

Jacek

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I agree that we will never be totally sure that the theory is completely correct unless we test everything it can predict. However I would not include the emergence of space and time (this just seems to me too speculative). I guess that if we uncovered in nature these five exotic Riemannian manifolds: S2 × R, H2 × R, SL(2, R), Nil and Solv geometry, it would be convincing enough that the geometrization conjecture is the first physical theorem. And the theorem we cannot falsify. But, apparently, at the moment we have to wait. But not so long. As I have mentioned, Torsten Asselmayer-Maluga’s works are my hope to show the direction for future experiments. He now works on NIL, SOLV and SL2.

Best,

Jacek

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Hello Philip

I was able to read your essay despite the fact that most of the concepts you deal with either in physics or mathematics were too technical or specialized for me to understand the points you are making. Is it possible to describe what you mean by universality in a simple way or by analogy?

Nevertheless the essay is lucid and well-written and I read it through. It left me with the hope or rather belief that beyond all the disparate phenomena and complicated theories there is a breathtakingly simple unity.

That is what I have argued in this year's essay, and this time did not have the aid of the elephant as I too did in a past essay, but of the amazingly 'smart' slime mold that can solve mazes. Amazing world!

Best wishes

Vladimir

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I was able to read your essay despite the fact that most of the concepts you deal with either in physics or mathematics were too technical or specialized for me to understand the points you are making. Is it possible to describe what you mean by universality in a simple way or by analogy?

Nevertheless the essay is lucid and well-written and I read it through. It left me with the hope or rather belief that beyond all the disparate phenomena and complicated theories there is a breathtakingly simple unity.

That is what I have argued in this year's essay, and this time did not have the aid of the elephant as I too did in a past essay, but of the amazingly 'smart' slime mold that can solve mazes. Amazing world!

Best wishes

Vladimir

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Vladimir, these issues are technically difficult for everybody and we can only move forward by pulling together and throwing in good ideas. I am glad to see you back to do that again. I too find the subjects difficult so I pick out the bits I understand and try to see some of the picture take shape from those.

Thanks for your comments, I will probably be nicking your slime mould idea next time.

Thanks for your comments, I will probably be nicking your slime mould idea next time.

Dear Dr. Gibbs,

I think my earlier post has gone unnoticed because somebody inadvertently posted a new comment as a reply to my post. So excuse me, I am posting it again, especially because I claim myself to be an independent researcher and find solace in the free-for-all 'VIXRA'. I express my sincere thanks to you for providing an asylum for people like me.

The first essay I read...

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I think my earlier post has gone unnoticed because somebody inadvertently posted a new comment as a reply to my post. So excuse me, I am posting it again, especially because I claim myself to be an independent researcher and find solace in the free-for-all 'VIXRA'. I express my sincere thanks to you for providing an asylum for people like me.

The first essay I read...

view entire post

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Ho Jose, I am sorry for not replying earlier. I was busy due to unrelated events and am now back.

I think your assessment of my position is fair and correct. I see mathematics as the realm of logical possibilities and physics as the realisation of those possibilties. From this point of view it obviously makes sense to start with the possibilities and then move on to the realisation.

However, this is just one philosophical position of many and I always recognise that other ways of looking at it can be equally valid. The test of meta-physical ideas is how they lead to more physical theories and from there to experiment. I have described in my essay how I related my philosophy to physics via multiple quantisation, algebraic geometry etc. It will be a long time before we know how it all pans out.

The multiple quantisation idea has been around for a while. I speculatd about the uniqueness of iterated quantisation a few years back at http://arxiv.org/abs/hep-th/9603165 My view of that has not changed but it has developed. I now think that the structure this gives us has to be seen as a system of meta-laws rather than a specific physical theory inside a particular geometry like our spacetime that we can relate to directly through experiment. Physics as we know it is just one solution of these meta-laws. In act you have to go through a cascade of refined solutions to get to the end. So in one sense the end-result of iterated quantisation is unique but the physical theory is not. Perhaps you can realate this to your way of seeing things.

I look forward to reading your essay

I think your assessment of my position is fair and correct. I see mathematics as the realm of logical possibilities and physics as the realisation of those possibilties. From this point of view it obviously makes sense to start with the possibilities and then move on to the realisation.

However, this is just one philosophical position of many and I always recognise that other ways of looking at it can be equally valid. The test of meta-physical ideas is how they lead to more physical theories and from there to experiment. I have described in my essay how I related my philosophy to physics via multiple quantisation, algebraic geometry etc. It will be a long time before we know how it all pans out.

The multiple quantisation idea has been around for a while. I speculatd about the uniqueness of iterated quantisation a few years back at http://arxiv.org/abs/hep-th/9603165 My view of that has not changed but it has developed. I now think that the structure this gives us has to be seen as a system of meta-laws rather than a specific physical theory inside a particular geometry like our spacetime that we can relate to directly through experiment. Physics as we know it is just one solution of these meta-laws. In act you have to go through a cascade of refined solutions to get to the end. So in one sense the end-result of iterated quantisation is unique but the physical theory is not. Perhaps you can realate this to your way of seeing things.

I look forward to reading your essay

Hi Philip,

I still wait for your next replies to my previous message, especially about the Many-worlds interpretation.

Recently I wrote this general overview of how I see things going in this contest, with a list of essays I found best. I also included there a list of essays criticizing the mathematical universe hypothesis which you defend. So I look forward to your comments on these essays.

I also included some not so rejoicing stuff there. I am sorry for this and I wish I did not have to do that, but when I see a nonsense growing too big I cannot go on very long as if it did not exist. So I am also curious to have your view on that. Thanks for your understanding.

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I still wait for your next replies to my previous message, especially about the Many-worlds interpretation.

Recently I wrote this general overview of how I see things going in this contest, with a list of essays I found best. I also included there a list of essays criticizing the mathematical universe hypothesis which you defend. So I look forward to your comments on these essays.

I also included some not so rejoicing stuff there. I am sorry for this and I wish I did not have to do that, but when I see a nonsense growing too big I cannot go on very long as if it did not exist. So I am also curious to have your view on that. Thanks for your understanding.

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Hi Sylvain, it is a nice idea to try and label all the essays with different isms (as on your linked page) so long as you do not take it too seriously.

I think you may also be trying to take the rating too seriously. In my post at the top I say the rating and prizes don't matter to me. What I have found each time is that I start near the top, then later I drop down. You see there are just as many people who hate viXra as people who love it but they arrive later :-)

The reason I keep coming back to the contest is that it is good to formulate thoughts and get some feedback. The FQXi essay contests are very good for that.

I think you may also be trying to take the rating too seriously. In my post at the top I say the rating and prizes don't matter to me. What I have found each time is that I start near the top, then later I drop down. You see there are just as many people who hate viXra as people who love it but they arrive later :-)

The reason I keep coming back to the contest is that it is good to formulate thoughts and get some feedback. The FQXi essay contests are very good for that.

I want to respond to some of the unanswered questions here as follows.

I see mathematics as something that comes before physics but I don’t see mathematics as a platonic realm. Mathematics is just the study of logical possibilities and our physical experience is just a stream of those logical possibilities being played out. We don’t need to explain existence and reality any more than...

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I see mathematics as something that comes before physics but I don’t see mathematics as a platonic realm. Mathematics is just the study of logical possibilities and our physical experience is just a stream of those logical possibilities being played out. We don’t need to explain existence and reality any more than...

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Hi Philip,

I agree with Ken Seto about the need for concentrating more on physical models. I have witnessed their potential in my own research and theory (TOEBI). Also, don't be too judgemental towards people who think that the contemporary physics has gone into woods for a long time ;-) I'm one of those people.

Anyway, you are a solid performer as usually, thanks for your essay! Check out my essay, it's a good example of a more physical theory.

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I agree with Ken Seto about the need for concentrating more on physical models. I have witnessed their potential in my own research and theory (TOEBI). Also, don't be too judgemental towards people who think that the contemporary physics has gone into woods for a long time ;-) I'm one of those people.

Anyway, you are a solid performer as usually, thanks for your essay! Check out my essay, it's a good example of a more physical theory.

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Do you think that there is an underlying physical, concrete, entities which are the building blocks of our universe? For example photons, electrons... concrete or not? Lets forget our contemporary theories about them, clean table view and your opinion.

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Kimmo, that's an interesting question from the point of view of universality which I did not have space to cover in the essay, so thanks for asking it.

The idea of universality is that the laws of physics emerge from an ensemble of different complex systems. Because of this they dont tend to have unique best descriptions. Take as an example the concept of universal computing as defined by Turing. He used a Turing machine but he could equally well have used something else like any programming language. You can show that the different possible definitions are equivalent. The concept of universal computing is unique and would be classed as something that mathematicians discovered, yet the Turing machine is invented and not special or unique.

If the laws of physics emerge from a principle of universality I expect the same thing to happen. I dont think reductionism will lead to a unique end point with a fundamental set of building blocks such as parrticles or strings. Instead there will be multiple ways of ariving at the laws of physics via definitions, none of which will be obviously the best or simplest or right way to go.

We already see this in some (still speculative) theories of physics such as elecromagnetic duality. In this case you can regard electrically particles particles and fields as fundamental and particles with magnetic charges are derived or composite, but you can also start from a descritpion where the magentic fields are fundamental and the electric fields are derived

Perhaps you are trying to amke a distinction between theories based on abstract mathematical ideas and theories based on concrete physical ideas? I dont see how there can be such a disinction. How do you define concrete?

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The idea of universality is that the laws of physics emerge from an ensemble of different complex systems. Because of this they dont tend to have unique best descriptions. Take as an example the concept of universal computing as defined by Turing. He used a Turing machine but he could equally well have used something else like any programming language. You can show that the different possible definitions are equivalent. The concept of universal computing is unique and would be classed as something that mathematicians discovered, yet the Turing machine is invented and not special or unique.

If the laws of physics emerge from a principle of universality I expect the same thing to happen. I dont think reductionism will lead to a unique end point with a fundamental set of building blocks such as parrticles or strings. Instead there will be multiple ways of ariving at the laws of physics via definitions, none of which will be obviously the best or simplest or right way to go.

We already see this in some (still speculative) theories of physics such as elecromagnetic duality. In this case you can regard electrically particles particles and fields as fundamental and particles with magnetic charges are derived or composite, but you can also start from a descritpion where the magentic fields are fundamental and the electric fields are derived

Perhaps you are trying to amke a distinction between theories based on abstract mathematical ideas and theories based on concrete physical ideas? I dont see how there can be such a disinction. How do you define concrete?

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Hi Philip,

Sorry for my last post ,it was cryptic and done in a hurry. In this one I will elaborate .

I was trying to dig up some concrete material on your random graphs and random matrices and how they lead to Necklace algebra and symmetries. That is because as I explained very very briefly that my system which is based on simulation is indeed nothing but a Buffon's needle type, something like two needles which are larger than the gap(the space between the needles).

As you well know Buffon's needle is a geometric probability problem which is well connected to integral geometry which is the theory of measures on a geometrical space invariant under the symmetry group of that space.

So my theory and your theory and the theory of particles in standard physics are connected.

Can you post some links to your materials, and what do you think about my way of thinking of linking all these ideas. I know I am asking for too much effort on your part, but I need some clear help in the direction which I will be taking to put my system in a more formal incarnation. But of course I understand if you cannot oblige.

Essay

P.S. Some info about the setup of distance in the program

Thanks and good luck.

attachments: 1_dist.png

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Sorry for my last post ,it was cryptic and done in a hurry. In this one I will elaborate .

I was trying to dig up some concrete material on your random graphs and random matrices and how they lead to Necklace algebra and symmetries. That is because as I explained very very briefly that my system which is based on simulation is indeed nothing but a Buffon's needle type, something like two needles which are larger than the gap(the space between the needles).

As you well know Buffon's needle is a geometric probability problem which is well connected to integral geometry which is the theory of measures on a geometrical space invariant under the symmetry group of that space.

So my theory and your theory and the theory of particles in standard physics are connected.

Can you post some links to your materials, and what do you think about my way of thinking of linking all these ideas. I know I am asking for too much effort on your part, but I need some clear help in the direction which I will be taking to put my system in a more formal incarnation. But of course I understand if you cannot oblige.

Essay

P.S. Some info about the setup of distance in the program

Thanks and good luck.

attachments: 1_dist.png

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Just a note

I can't find any mathematical write ups on you material , they are too general, so DO you have more concrete material. Thanks

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I can't find any mathematical write ups on you material , they are too general, so DO you have more concrete material. Thanks

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Adel, thank you for the questions. Since you ask I will give you a potted history of how my work developed and you can compare with your own path.

As a PhD student I worked on Lattice Gauge Theories and wrote programs to do Monte Carlo calculations, much like the Buffon's needle trick except there are many more variables in the calculation.

I left academia but was still interested in...

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As a PhD student I worked on Lattice Gauge Theories and wrote programs to do Monte Carlo calculations, much like the Buffon's needle trick except there are many more variables in the calculation.

I left academia but was still interested in...

view entire post

Dear Philip Gibbs,

In your essay you wrote, "If there is indeed a class of many possible solutions for the vacuum, is only one of these real? I think it is more parsimonious to accept that all solutions exist in some higher sense, whether inside or outside our universe. Some physicists have speculated that there is an eternal process of inflation with vacua decaying to different solutions so that our own universe is just one bubble inside a larger arena. Others have looked at evolving universes where the laws of physics evolve in leaps where new universes are born from old. We can learn a lot from thinking about such possibilities whether they are eventually testable or not but we should not get carried away by thinking they are less speculative or more testable than they really are."

If the foundations of physics are mathematical equations that restrict energy and spacetime then there might two basic possibilities: (1) the restrictions cause spacetime to curl up according to energy-density based upon generalized quantum information, or (2) the restrictions cause approximations to energy and spacetime to build up from Fredkin-Wolfram information below the Planck scale. How many fundamental particles need to be added to the roster of the Standard Model of particle physics? My guess is that there 2 basic possibilities: (1) if the Heisenberg uncertainty principle should be generalized to use both hbar and alpha-prime, then some form of supersymmetry is empirically valid, or (2) if Einstein's equivalence principle fails for dark matter then the finite nature hypothesis is empirically valid (because the multiverse has a boundary and an interior). Google "witten milgrom" for more information. What is your opinion of the space roar and the photon underproduction crisis?

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In your essay you wrote, "If there is indeed a class of many possible solutions for the vacuum, is only one of these real? I think it is more parsimonious to accept that all solutions exist in some higher sense, whether inside or outside our universe. Some physicists have speculated that there is an eternal process of inflation with vacua decaying to different solutions so that our own universe is just one bubble inside a larger arena. Others have looked at evolving universes where the laws of physics evolve in leaps where new universes are born from old. We can learn a lot from thinking about such possibilities whether they are eventually testable or not but we should not get carried away by thinking they are less speculative or more testable than they really are."

If the foundations of physics are mathematical equations that restrict energy and spacetime then there might two basic possibilities: (1) the restrictions cause spacetime to curl up according to energy-density based upon generalized quantum information, or (2) the restrictions cause approximations to energy and spacetime to build up from Fredkin-Wolfram information below the Planck scale. How many fundamental particles need to be added to the roster of the Standard Model of particle physics? My guess is that there 2 basic possibilities: (1) if the Heisenberg uncertainty principle should be generalized to use both hbar and alpha-prime, then some form of supersymmetry is empirically valid, or (2) if Einstein's equivalence principle fails for dark matter then the finite nature hypothesis is empirically valid (because the multiverse has a boundary and an interior). Google "witten milgrom" for more information. What is your opinion of the space roar and the photon underproduction crisis?

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David, thanks for these points. I feel they go beyond the subject of my essay which does not have much to say about details in cosmology. The anomalies (dark roar and photon underproduction) you mention are very interesting and not ones that I am familiar with. I fear that the resolutions will be rather mundane but I hope there will turn out to be something fundamental at work and I will keep an open mind on it until more compelling data is available either way.

I follow the digital physic and finite nature ideas which are very interesting to someone like me who sees information and qubits as fundamental but I dont agree with some of the stronger claims or theories about cellular automata. This is because I steer away from the idea that simplicity has nay part in determining the laws of physics and use universality instead. Nevertheless digital physics is also interesting from the point of view of universality.

I follow the digital physic and finite nature ideas which are very interesting to someone like me who sees information and qubits as fundamental but I dont agree with some of the stronger claims or theories about cellular automata. This is because I steer away from the idea that simplicity has nay part in determining the laws of physics and use universality instead. Nevertheless digital physics is also interesting from the point of view of universality.

Dear Philip Gibbs,

In your essay you wrote, "Today the more progressive physicists take a different view. Space and time are seen as emergent from a yet unknown new way of looking at the universe that must go beyond the bounds of standard quantum field theory, but that much is widely accepted and therefore is not the defining feature of the new paradigm. What is harder to accept is the...

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In your essay you wrote, "Today the more progressive physicists take a different view. Space and time are seen as emergent from a yet unknown new way of looking at the universe that must go beyond the bounds of standard quantum field theory, but that much is widely accepted and therefore is not the defining feature of the new paradigm. What is harder to accept is the...

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Hi Philip,

Your central thesis that mathematics and physics converge due to universality is very intriguing to me. However, it still leaves open the question of why the meta-laws should exhibit such universality. We still have a "miracle" to deal with, but just at one higher level than Wigner's miracle of the effectiveness of mathematics. Of course, all answers to Wigner's question will open their own new questions, so I do not see this as a defect of your view. However, I think that maybe if we take into account that human knowledge is developed by a social network of individuals, that might help to explain why universality should inevitably emerge in our fundamental laws. It is perhaps a bit controversial to bring social factors into the analysis of fundamental physics, but I think we can safely admit that knowledge is partly shaped by the society that generates it without descending into full-scale social constructivism.

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Your central thesis that mathematics and physics converge due to universality is very intriguing to me. However, it still leaves open the question of why the meta-laws should exhibit such universality. We still have a "miracle" to deal with, but just at one higher level than Wigner's miracle of the effectiveness of mathematics. Of course, all answers to Wigner's question will open their own new questions, so I do not see this as a defect of your view. However, I think that maybe if we take into account that human knowledge is developed by a social network of individuals, that might help to explain why universality should inevitably emerge in our fundamental laws. It is perhaps a bit controversial to bring social factors into the analysis of fundamental physics, but I think we can safely admit that knowledge is partly shaped by the society that generates it without descending into full-scale social constructivism.

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Interesting points. I dont claim to have all the answers. These are the Marianas Trench of philosphical questions and the bottom is still a long way down. However, I am guided by the idea that there cant be any miracles. There must eventually be some way to understand our experience without harking back to something more fundamental, even something like simplicity is too much of a human construction.

I am able to accept that the range of logical possibilities is an acceptable starting point which does not require any miracle. Mathematics is just the analysis of these logical possibilities. We can start from there and try to find a bridge that takes us to physics without putting in any miracles. Universality is just that bridge. It must be there because we got here somehow.

I dont know exaclty how the bridge is constructed but I use metaphors from complexity theory to try and get some ideas. Most of the things we know about universality in complexity theory exist within some bigger context. Everything has to be intrinsic rather than extrinsic. We have to avoid the need for some measure on the moduli space of possible theories because that measure would need an explanation itself. I think some forms of universality such as the universality of computability do not need such a measure. I think there is a similar universality principle at work in category theory but it is harder to find.

I dont think social constructs are involved in forming these meta-laws. I do think that social constructs such as anthropomorphic selection is relevant in selecting the solution to the meta-laws that forms our experience of reality. So there can be no fine-tuning in the meta-laws. They must be perfectly natural.

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I am able to accept that the range of logical possibilities is an acceptable starting point which does not require any miracle. Mathematics is just the analysis of these logical possibilities. We can start from there and try to find a bridge that takes us to physics without putting in any miracles. Universality is just that bridge. It must be there because we got here somehow.

I dont know exaclty how the bridge is constructed but I use metaphors from complexity theory to try and get some ideas. Most of the things we know about universality in complexity theory exist within some bigger context. Everything has to be intrinsic rather than extrinsic. We have to avoid the need for some measure on the moduli space of possible theories because that measure would need an explanation itself. I think some forms of universality such as the universality of computability do not need such a measure. I think there is a similar universality principle at work in category theory but it is harder to find.

I dont think social constructs are involved in forming these meta-laws. I do think that social constructs such as anthropomorphic selection is relevant in selecting the solution to the meta-laws that forms our experience of reality. So there can be no fine-tuning in the meta-laws. They must be perfectly natural.

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Phil,

Count me among your admirers. Though I haven't always understood what you're saying, I find this essay crisp, clear and abundantly meaningful.

"What then would happen if we treat the whole of mathematics as a statistical physics system or as a path integral over the moduli space of all possible theories [4]? Would some universal behaviour emerge that could describe the meta-laws of physics?"

I think so! Taking your reference to chess-playing aliens, one finds that that every chess game, as complex as the game is, has a critical point where the game can go either way, or to the equilibrium state of a draw. I agree also with your view of vacua -- my conclusion is that nature cannot respect any vacuum state without respecting all vacuum states.

Years ago I suggested that even mathematics (at the level of analysis) is a self organized system. You get my highest score, and I hope you can read my essay when you get a chance.

All best,

Tom

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Count me among your admirers. Though I haven't always understood what you're saying, I find this essay crisp, clear and abundantly meaningful.

"What then would happen if we treat the whole of mathematics as a statistical physics system or as a path integral over the moduli space of all possible theories [4]? Would some universal behaviour emerge that could describe the meta-laws of physics?"

I think so! Taking your reference to chess-playing aliens, one finds that that every chess game, as complex as the game is, has a critical point where the game can go either way, or to the equilibrium state of a draw. I agree also with your view of vacua -- my conclusion is that nature cannot respect any vacuum state without respecting all vacuum states.

Years ago I suggested that even mathematics (at the level of analysis) is a self organized system. You get my highest score, and I hope you can read my essay when you get a chance.

All best,

Tom

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Dear Philip,

Thank you for the comments you left on my essay's page. About a week ago, following a reference at the end of Jonathan Dickau's essay, I came upon your almost twenty-year-old essay Theory of Theories, and I found your extension of the idea behind Feynman's path integral to the space of all possible theories absolutely fascinating. Quoting from that essay:

"We might well...

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Thank you for the comments you left on my essay's page. About a week ago, following a reference at the end of Jonathan Dickau's essay, I came upon your almost twenty-year-old essay Theory of Theories, and I found your extension of the idea behind Feynman's path integral to the space of all possible theories absolutely fascinating. Quoting from that essay:

"We might well...

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Dear Philip,

Following our previous conversations, I just reread your essay. Indeed, we share a lot of the same views.

I like the way you begin your essay by considering the shortcomings of the “univacuum assumption”. I googled “univacuum” and I think you are the first to use the term in this context. I would say that I am clearly in the camp of the “multivacuers”… but...

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Following our previous conversations, I just reread your essay. Indeed, we share a lot of the same views.

I like the way you begin your essay by considering the shortcomings of the “univacuum assumption”. I googled “univacuum” and I think you are the first to use the term in this context. I would say that I am clearly in the camp of the “multivacuers”… but...

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My use of the word "metaphorical" when talking about the path integral is deliberate. We get an intuitive idea feel for universality when we think of it as a sector of the path integral that dominates or where phases do not cancel out, as in maximum entropy or the classical limit. But even in quantum mechanics that is not the whole story. The path integral for fermions works differently through some less intuitive algebraic mechanism.

Universality of the concept of computability is another example that is less intuitive. Some people do not even recognise it as the same use of the word universality, but I think it is. The universailty that I am looking for in this essay may also be more subtle than just a path integral dominated by some kind of comonality, but it is a good metaphor and possibly a source of toy models that might be instructive.

The monstrous moonshine conjectures are quite deep and a bit beyond my expertise, but you can get an idea by learning a little about the Golay code and the Leech Lattice and the related groups. There are a lot of mathematical ideas mysteriously connected by the number 24 which are also connected to the number of dimensions in bosonic string theory. John Baez wrote some easily understandable articles about that.

Universality of the concept of computability is another example that is less intuitive. Some people do not even recognise it as the same use of the word universality, but I think it is. The universailty that I am looking for in this essay may also be more subtle than just a path integral dominated by some kind of comonality, but it is a good metaphor and possibly a source of toy models that might be instructive.

The monstrous moonshine conjectures are quite deep and a bit beyond my expertise, but you can get an idea by learning a little about the Golay code and the Leech Lattice and the related groups. There are a lot of mathematical ideas mysteriously connected by the number 24 which are also connected to the number of dimensions in bosonic string theory. John Baez wrote some easily understandable articles about that.

Dear Phillip,

There are opinions that Euler's identity is of particular importance for physics. In this competition is very rarely mentioned. I have no idea about it, but I see the possibility of complementarily exp(i*pi), (from Euler's identity) and exp(2*pi), which I use in my essay, under the name cycle. I ask: what you think about the possible progress in using Euler identity in physics?

Regards,

Branko

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There are opinions that Euler's identity is of particular importance for physics. In this competition is very rarely mentioned. I have no idea about it, but I see the possibility of complementarily exp(i*pi), (from Euler's identity) and exp(2*pi), which I use in my essay, under the name cycle. I ask: what you think about the possible progress in using Euler identity in physics?

Regards,

Branko

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Dear Brabko,

Euler's identity was an early example of the surprising connectedness of ideas in mathematics and physics. It linked and in a surprisingly direct way where previously they seemed unconnected. Now we take it for granted because it is part of complex analysis that is common place in maths and physics, for example it is used in Fourier analysis. However it is a good idea to use it in this contest.

Euler's identity was an early example of the surprising connectedness of ideas in mathematics and physics. It linked and in a surprisingly direct way where previously they seemed unconnected. Now we take it for granted because it is part of complex analysis that is common place in maths and physics, for example it is used in Fourier analysis. However it is a good idea to use it in this contest.

Hi Phil,

It is a pleasure to meet you again in FQXi Essay Contest. Even this year, you made an excellent work as I found your Essay very interesting and enjoyable. I must confess that I have read your Essay after reading a nice sentence of yours reported in the Essay of our friend Jonathan J. Dickau which claims that “the laws of physics are a universal behaviour to be found in the class of all possible mathematical systems". In any case, here is a couple of comments on your nice Essay:

1) Some years ago I discussed in San Marino with two great physicists, i.e. Hagen Kleinert and Alexander Burinski, on the new paradigm that is emerging in fundamental physics concerning the new way of looking at the universe. All of us three agreed that gravity is the key. We think that gravity goes beyond string theory and quantum field theory.

2) I disagree on the issue that the holographic principle is required to resolve the black hole information loss puzzle. This assumption by Susskind is based on the Maldacena conjecture. But I agree with Mathur's criticisms, see here and here. The key point is that the AdS/CFT duality works only for low energy processes, where black holes do not form. In other words, if we force the gravity theory to be the dual of a given CFT, then we cannot assume that black holes will form in the theory. Thus, the duality seems to break down in presence of black holes.

In any case, I still remark that I find your Essay very intriguing. Thus, I give you a deserved highest score.

I hope you will have a chance to read my Essay .

I wish you best luck in the Contest.

Cheers, Ch.

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It is a pleasure to meet you again in FQXi Essay Contest. Even this year, you made an excellent work as I found your Essay very interesting and enjoyable. I must confess that I have read your Essay after reading a nice sentence of yours reported in the Essay of our friend Jonathan J. Dickau which claims that “the laws of physics are a universal behaviour to be found in the class of all possible mathematical systems". In any case, here is a couple of comments on your nice Essay:

1) Some years ago I discussed in San Marino with two great physicists, i.e. Hagen Kleinert and Alexander Burinski, on the new paradigm that is emerging in fundamental physics concerning the new way of looking at the universe. All of us three agreed that gravity is the key. We think that gravity goes beyond string theory and quantum field theory.

2) I disagree on the issue that the holographic principle is required to resolve the black hole information loss puzzle. This assumption by Susskind is based on the Maldacena conjecture. But I agree with Mathur's criticisms, see here and here. The key point is that the AdS/CFT duality works only for low energy processes, where black holes do not form. In other words, if we force the gravity theory to be the dual of a given CFT, then we cannot assume that black holes will form in the theory. Thus, the duality seems to break down in presence of black holes.

In any case, I still remark that I find your Essay very intriguing. Thus, I give you a deserved highest score.

I hope you will have a chance to read my Essay .

I wish you best luck in the Contest.

Cheers, Ch.

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Christian, It is good to see you here again.

I agree that gravity and spacetime is an important key. For me it is about how to understand that the geometry of gravity emerges from somthing more algebraic and abstract, but there are other ways to see it.

I dont think the holographic principle is really based on AdS/CFT. The principle was formulated by 't Hooft and Susskind before the Maldacena conjecture and is independent of that or string theory. The problem is to know the general context in which the conjecture could be true. For that I have suggested that "complete symmetry" is the required element. Of course it is not unreasonable to be skeptical of the principle. It is speculative, as is string theory. I am sure it will be many years and there will be many interesting discussions and revelations before any consensus is formed.

I agree that gravity and spacetime is an important key. For me it is about how to understand that the geometry of gravity emerges from somthing more algebraic and abstract, but there are other ways to see it.

I dont think the holographic principle is really based on AdS/CFT. The principle was formulated by 't Hooft and Susskind before the Maldacena conjecture and is independent of that or string theory. The problem is to know the general context in which the conjecture could be true. For that I have suggested that "complete symmetry" is the required element. Of course it is not unreasonable to be skeptical of the principle. It is speculative, as is string theory. I am sure it will be many years and there will be many interesting discussions and revelations before any consensus is formed.

Philip,

Heavy stuff. As some politicians would say, "I am not a scientist specializing in quantum gravity, so ..." Well, what they say is simpler.

"All is possible in the quantum realm but there is a hierarchy of classical limits ... these limits define worlds in which math rules are played out according to the law of quantum averages."

Can we simply start with trying to explain a mystery in the classical world, for example, how European robins navigate N and S seasonally. A theoretical physicist and a molecular genetics professor did this. They combined a receptor for the avian chemical compass with a protein capable of generating entangled electrons that interacted with the Earth's magnetic field. Does their study impose a classical limit which utilizes what they know about quantum mechanics?

I know I am cherry-picking your quotes but I am struggling to understand.

Incidentally what does a successful BICEP2 discovery of a primordial B-mode cosmic inflation caused by gravitational waves do for quantum gravity?

Like to see your thoughts on my essay: http://fqxi.org/community/forum/topic/2345.

Jim

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Heavy stuff. As some politicians would say, "I am not a scientist specializing in quantum gravity, so ..." Well, what they say is simpler.

"All is possible in the quantum realm but there is a hierarchy of classical limits ... these limits define worlds in which math rules are played out according to the law of quantum averages."

Can we simply start with trying to explain a mystery in the classical world, for example, how European robins navigate N and S seasonally. A theoretical physicist and a molecular genetics professor did this. They combined a receptor for the avian chemical compass with a protein capable of generating entangled electrons that interacted with the Earth's magnetic field. Does their study impose a classical limit which utilizes what they know about quantum mechanics?

I know I am cherry-picking your quotes but I am struggling to understand.

Incidentally what does a successful BICEP2 discovery of a primordial B-mode cosmic inflation caused by gravitational waves do for quantum gravity?

Like to see your thoughts on my essay: http://fqxi.org/community/forum/topic/2345.

Jim

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James, the world seems classical but that is only superficial. Quantum mechanics plays many roles in life.

If the BICEP2 discovery had stood up it could indeed have allowed us to explore the effects of quantum gravity in the early universe. Sadly that seems not to be unless we can find a clear enough window through the dust. Other opportunities to see similar effects may come from direct observation of primordial gravitational waves or low frequency radio waves.

If the BICEP2 discovery had stood up it could indeed have allowed us to explore the effects of quantum gravity in the early universe. Sadly that seems not to be unless we can find a clear enough window through the dust. Other opportunities to see similar effects may come from direct observation of primordial gravitational waves or low frequency radio waves.

Phil,

Well up to you usual high standard and with signs of greater maturity of view. I hope my score helps keep you at the top. I particularly like your identification that the question can be just as well reversed (why is it that physics...). I do however have a couple of questions;

1) Do you really believe there must be a greater or 'super' symmetry hiding away behind the 'dipole' symmetry considered 'breaking' by Green and most particle physicists? ..and what would it bring. Do you think of the concept that the dipole may perhaps be the very quiescence of 'matter' (inc anti) as opposed to (maybe dark?) 'energy' alone?

2) This may be semantic, but suggesting a 'map of all things logically possible" would seem to many to be excluding QM and non-locality. Do you suggest QM; a) CAN have a 'logical' explanation. Or b) ??

Re 2; I hypothesise a 'quasi classical' mechanism that seems to reproduce it and reveal the mathematical 'sock switch' trick that hides it in my essay, so prefer a).

I hope you get to read mine. I feel that in 'stabbing in the dark' I've felt something, but how can we then expose what it really is when each of us has a different vision? Perhaps the value of reading these a essays is in converging those vision.

Well done, and very best of luck with the definitive judging.

Peter

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Well up to you usual high standard and with signs of greater maturity of view. I hope my score helps keep you at the top. I particularly like your identification that the question can be just as well reversed (why is it that physics...). I do however have a couple of questions;

1) Do you really believe there must be a greater or 'super' symmetry hiding away behind the 'dipole' symmetry considered 'breaking' by Green and most particle physicists? ..and what would it bring. Do you think of the concept that the dipole may perhaps be the very quiescence of 'matter' (inc anti) as opposed to (maybe dark?) 'energy' alone?

2) This may be semantic, but suggesting a 'map of all things logically possible" would seem to many to be excluding QM and non-locality. Do you suggest QM; a) CAN have a 'logical' explanation. Or b) ??

Re 2; I hypothesise a 'quasi classical' mechanism that seems to reproduce it and reveal the mathematical 'sock switch' trick that hides it in my essay, so prefer a).

I hope you get to read mine. I feel that in 'stabbing in the dark' I've felt something, but how can we then expose what it really is when each of us has a different vision? Perhaps the value of reading these a essays is in converging those vision.

Well done, and very best of luck with the definitive judging.

Peter

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Peter, supersymmetry was first conceived as a component of quantum gravity where it may be very hard to detect. If is important in making perturbative quantum gravity more consistent. In my idea of "complete symmetry" where there is a degree of symmetry for every degree of freedom supersymmetry is essential simply because there are fermions. All this is specualtive of course. I dont think there is any good evidence even in dipole measurements.

So called quantum logic can be described using ordinary ideas in logic. We can pretend that it is something more general but I dont see it that way. Of course there are some mysteries in quamtum mechanics but I dont see them as questions beyond logic. Perhaps I am wrong.

So called quantum logic can be described using ordinary ideas in logic. We can pretend that it is something more general but I dont see it that way. Of course there are some mysteries in quamtum mechanics but I dont see them as questions beyond logic. Perhaps I am wrong.

Dear Philip,

Because universality is the central concept in your ontology, I wonder whether it would be appropriate to put logic at the point of universality. We usually think of universal concepts as the concepts which apply to everything. Similarly, universal principles are defined as those principles which apply to everything. The common view seems to be that the concepts and principles of logic are universal in this sense. Your chart includes all logical possibilities. If we try to organize and understand the realm of all logical possibilities, then I think we would begin by using the concepts and principles of logic. In a sense a very basic part of the meta-laws are the laws of logic. Of course, there are more specific meta-laws as well, including meta-laws for physics. But maybe I am misunderstanding the role of universality here. In any event, thank you for a stimulating essay.

Best wishes,

Laurence Hitterdale

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Because universality is the central concept in your ontology, I wonder whether it would be appropriate to put logic at the point of universality. We usually think of universal concepts as the concepts which apply to everything. Similarly, universal principles are defined as those principles which apply to everything. The common view seems to be that the concepts and principles of logic are universal in this sense. Your chart includes all logical possibilities. If we try to organize and understand the realm of all logical possibilities, then I think we would begin by using the concepts and principles of logic. In a sense a very basic part of the meta-laws are the laws of logic. Of course, there are more specific meta-laws as well, including meta-laws for physics. But maybe I am misunderstanding the role of universality here. In any event, thank you for a stimulating essay.

Best wishes,

Laurence Hitterdale

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Philip,

Shark time when some are pulled under, so I am revisiting essays I’ve read to assure I’ve rated them. I find that I rated yours on 4/20, rating it as one I could immediately relate to. I hope you get a chance to look at mine: http://fqxi.org/community/forum/topic/2345 as the hours tick down.

Thanks,

Jim

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Shark time when some are pulled under, so I am revisiting essays I’ve read to assure I’ve rated them. I find that I rated yours on 4/20, rating it as one I could immediately relate to. I hope you get a chance to look at mine: http://fqxi.org/community/forum/topic/2345 as the hours tick down.

Thanks,

Jim

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Philip,

I am uploading an Excel spreadsheet with the contest results. This might be useful if you decide to do a comparison between viXra authors and FQXI authors in general.

Thanks again,

Gary Simpson

attachments: FQXI_2015_Results.xlsx

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I am uploading an Excel spreadsheet with the contest results. This might be useful if you decide to do a comparison between viXra authors and FQXI authors in general.

Thanks again,

Gary Simpson

attachments: FQXI_2015_Results.xlsx

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Dear Philip,

This is very well written essay, and an enjoyable read.

I read quite a long time ago, and I think I am now on my third read. I guess that I really have a different perspective.

You have a logically-ordered ontology of mathematics which you present metaphorically. And central to this is the idea that there is some sort of universality around which the mathematics...

view entire post

This is very well written essay, and an enjoyable read.

I read quite a long time ago, and I think I am now on my third read. I guess that I really have a different perspective.

You have a logically-ordered ontology of mathematics which you present metaphorically. And central to this is the idea that there is some sort of universality around which the mathematics...

view entire post

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Kevin

Thank you for your insightful comments

I don’t think there are really different types of mathematical theories. There is just one self-referential logical whole. We see it from the inside as participants and like children who rep4eatedly follow every answer with the question “why?” we are never satisfied with a final answer. Yet I think that the class of logical...

view entire post

Thank you for your insightful comments

I don’t think there are really different types of mathematical theories. There is just one self-referential logical whole. We see it from the inside as participants and like children who rep4eatedly follow every answer with the question “why?” we are never satisfied with a final answer. Yet I think that the class of logical...

view entire post

Thanks to everyone who commented and rated my essay. This was a subject that I started thinking about 25 years ago so I was very happy to have the chance to write about it here. I dont take the final placements seriously. I used to wish for a prize place in these contests but now I realise that the winners tend to be those who take the safer options. If I win I will feel that I was not sufficiently controversial. I like to imagine that in a hundred years time someone will revisit the essays to rate them in the light of future discoveries. I aim to write for that rather than the present judging. Perhaps it is a good thing I wont be here to see the result.

Questions I would like to see for future contests are:

- Can we explain consciousness?

- Is there merit in the multiverse?

- Why is there symmetry?

- Why the quantum?

- Where are the aliens?

- What is the long-term future for humanity?

Questions I would like to see for future contests are:

- Can we explain consciousness?

- Is there merit in the multiverse?

- Why is there symmetry?

- Why the quantum?

- Where are the aliens?

- What is the long-term future for humanity?

I am very honoured to receive a prize in this years contest. Congratulations to all the winners. To those who did not make it I say dont be disheartened. These contests are a bit like mother and baby contests and we all think our baby is the most beautiful. It is hard not to feel offended when someone elses baby is judged to be better but the judges are only human and following their own opinions. My guess is that the unknown judges are not always the high level experts we imagine them to be so the result is just one set of opinions and not necessarily the most important one. The truth is that all the babies are beautiful in their own way and we will have to wait for them to grow up before we have the hindsight to judge their real ptoential.

I suppose that I should now follow my words prior to the announcement and say that my essay was not radical enough because it won a prize. However I have to point out that they had to invent a new lowest ever fifth level of prizes and a special category of non-academic author to get me in :-) Some people are going to think that I dont fit the non-academic label bacause I have a PhD and have published in academic journals, but all of my work on this topic has been carried out independently of any academic institution over 28 years so I think it is right. I dont think I am the only prize winner that fits this description. It is good to see that top places are going to some non-FQXi members this year.

A lot of the prizes went to people who argued against the mysterious nature of mathematics in physics. Most notably the first prize to Wenmakers who argued that mathemaricians are just following the influence of the physical world. Most pure mathematicians would strongly dispute this and they are right. They are very capable of exploring abstract ideas independently of any kind of real world application yet such applications frequently appear later. The manner in which ideas from physics are unexpectedly applied to problems in pure mathematics is even more striking. The moonshine conjecture is just the most obvious example of this.

Looking forward to the next essay or video contest. Thanks to the people at FQXi who worked hard behind the scenes to make this work.

I suppose that I should now follow my words prior to the announcement and say that my essay was not radical enough because it won a prize. However I have to point out that they had to invent a new lowest ever fifth level of prizes and a special category of non-academic author to get me in :-) Some people are going to think that I dont fit the non-academic label bacause I have a PhD and have published in academic journals, but all of my work on this topic has been carried out independently of any academic institution over 28 years so I think it is right. I dont think I am the only prize winner that fits this description. It is good to see that top places are going to some non-FQXi members this year.

A lot of the prizes went to people who argued against the mysterious nature of mathematics in physics. Most notably the first prize to Wenmakers who argued that mathemaricians are just following the influence of the physical world. Most pure mathematicians would strongly dispute this and they are right. They are very capable of exploring abstract ideas independently of any kind of real world application yet such applications frequently appear later. The manner in which ideas from physics are unexpectedly applied to problems in pure mathematics is even more striking. The moonshine conjecture is just the most obvious example of this.

Looking forward to the next essay or video contest. Thanks to the people at FQXi who worked hard behind the scenes to make this work.

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