Search FQXi


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.

Contests Home

Current Essay Contest


Contest Partners: The Peter and Patricia Gruber Foundation and Scientific American

Previous Contests

Undecidability, Uncomputability, and Unpredictability Essay Contest
December 24, 2019 - April 24, 2020
Contest Partners: Fetzer Franklin Fund, and The Peter and Patricia Gruber Foundation
read/discusswinners

What Is “Fundamental”
October 28, 2017 to January 22, 2018
Sponsored by the Fetzer Franklin Fund and The Peter & Patricia Gruber Foundation
read/discusswinners

Wandering Towards a Goal
How can mindless mathematical laws give rise to aims and intention?
December 2, 2016 to March 3, 2017
Contest Partner: The Peter and Patricia Gruber Fund.
read/discusswinners

Trick or Truth: The Mysterious Connection Between Physics and Mathematics
Contest Partners: Nanotronics Imaging, The Peter and Patricia Gruber Foundation, and The John Templeton Foundation
Media Partner: Scientific American

read/discusswinners

How Should Humanity Steer the Future?
January 9, 2014 - August 31, 2014
Contest Partners: Jaan Tallinn, The Peter and Patricia Gruber Foundation, The John Templeton Foundation, and Scientific American
read/discusswinners

It From Bit or Bit From It
March 25 - June 28, 2013
Contest Partners: The Gruber Foundation, J. Templeton Foundation, and Scientific American
read/discusswinners

Questioning the Foundations
Which of Our Basic Physical Assumptions Are Wrong?
May 24 - August 31, 2012
Contest Partners: The Peter and Patricia Gruber Foundation, SubMeta, and Scientific American
read/discusswinners

Is Reality Digital or Analog?
November 2010 - February 2011
Contest Partners: The Peter and Patricia Gruber Foundation and Scientific American
read/discusswinners

What's Ultimately Possible in Physics?
May - October 2009
Contest Partners: Astrid and Bruce McWilliams
read/discusswinners

The Nature of Time
August - December 2008
read/discusswinners

Forum Home
Introduction
Terms of Use

Order posts by:
 chronological order
 most recent first

Posts by the author are highlighted in orange; posts by FQXi Members are highlighted in blue.

By using the FQXi Forum, you acknowledge reading and agree to abide by the Terms of Use

 RSS feed | RSS help
RECENT POSTS IN THIS TOPIC

Anton Biermans: on 2/24/11 at 4:02am UTC, wrote Dear Daniel, In your very lucid essay you write: -"According to one point...

Alan Lowey: on 2/10/11 at 15:06pm UTC, wrote Hi Daniel, thanks for your essay. I wondered whether you have considered...

Lawrence B. Crowell: on 2/5/11 at 13:19pm UTC, wrote Noetherian currents are described by continuous groups and their...

Edwin Klingman: on 1/30/11 at 1:34am UTC, wrote Dear Daniel Cannarutto, I enjoyed your essay and have a few remarks. Two...

Robert Spoljaric: on 1/26/11 at 5:06am UTC, wrote Dear Dr. Canarutto, I fully enjoyed reading your essay, as my essay...

Cristinel Stoica: on 1/25/11 at 20:21pm UTC, wrote Dear Mr. Canarutto, I was charmed by your short and clear, but deep essay....

Daniel Canarutto: on 1/25/11 at 12:57pm UTC, wrote Essay Abstract I bring forward some arguments to support the thesis...


RECENT FORUM POSTS

jim hughes: "I'm not a mathematician. So what I see here is some smart people who..." in Consciousness and the...

Steve Dufourny: "Hello FQXi, the members and all, I try to do my best to unite and convice..." in Global Collaboration

Lorraine Ford: "The idea of a smooth mathematical evolution of “the wave function”, and..." in Consciousness and the...

Georgina Woodward: "Broken machine: What do[es] I see next? The I that was, E.I, has not been..." in The Room in the Elephant:...

Lorraine Ford: "Hi Stefan, I hope that a good leader, and a good political party, is..." in The Present State of...

Lorraine Ford: "We live in an age of computing. But physics, mathematics and philosophy,..." in The Present State of...

Georgina Woodward: "I've copied the comment to the thread where it belongs. This orphan can be..." in The Room in the Elephant:...

Georgina Woodward: "Thank you John. What did you think about the questioning whether altitude..." in The Nature of Time


RECENT ARTICLES
click titles to read articles

Good Vibrations
Microbead 'motor' exploits natural fluctuations for power.

Reconstructing Physics
New photon experiment gives new meta-framework, 'constructor theory,' a boost.

The Quantum Engineer: Q&A with Alexia Auffèves
Experiments seek to use quantum observations as fuel to power mini motors.

The Quantum Clock-Maker Investigating COVID-19, Causality, and the Trouble with AI
Sally Shrapnel, a quantum physicist and medical practitioner, on her experiments into cause-and-effect that could help us understand time’s arrow—and build better healthcare algorithms.

Connect the Quantum Dots for a New Kind of Fuel
'Artificial atoms' allow physicists to manipulate individual electrons—and could help to reduce energy wastage in electronic devices.


FQXi FORUM
September 28, 2021

CATEGORY: Is Reality Digital or Analog? Essay Contest (2010-2011) [back]
TOPIC: Nature's Software by Daniel Canarutto [refresh]
Bookmark and Share
Login or create account to post reply or comment.

Author Daniel Canarutto wrote on Jan. 25, 2011 @ 12:57 GMT
Essay Abstract

I bring forward some arguments to support the thesis that nature is fundamentally discrete, and present my own thoughts about the direction in which one could look for a possible, consistent "theory of everything" describing gravitation and quantum particles.

Author Bio

Daniel Canarutto is a researcher in Mathematical Physics at the Faculty of Engeneering of the University of Florence (Italy). His main research interests deal with the geometric structures underlying physical theories. He has published papers, on various international journals, on spacetime singularities, spinor geometry, and the geometry of distributional bundles applied to quantum physics.

Download Essay PDF File

Bookmark and Share


Cristinel Stoica wrote on Jan. 25, 2011 @ 20:21 GMT
Dear Mr. Canarutto,

I was charmed by your short and clear, but deep essay. Although my essay argues for fundamental continuity (in relation to singularities in General Relativity), I must say that your arguments for discreteness are probably the most convincing I saw so far. I think that the image of a quantum world you presented captures some essential aspects, which indeed can be related to General Relativity in the way you said. As a matter of fact, my own vision of unity is somehow similar, but backwards than yours: I see the same kind of network of particles, but obtained from the topology of spacetime (probably the simplest idea of this kind is represented by the topological charges - Einstein-Rosen, Wheeler). Nevertheless, I am not able to tell yet how this relation is obtained.

Best regards,

Cristi

Bookmark and Share
report post as inappropriate
Robert Spoljaric replied on Jan. 26, 2011 @ 05:06 GMT
Dear Dr. Canarutto,

I fully enjoyed reading your essay, as my essay supports your thesis and Penrose's comments! In it is derived 'the Light' which cannot be differentiated, thereby showing calculus may be of limited validity when applied to certain physical concepts.

Hopefully, you will have time to read my essay.

All the very best to you,

Robert

Bookmark and Share
report post as inappropriate


Edwin Eugene Klingman wrote on Jan. 30, 2011 @ 01:34 GMT
Dear Daniel Cannarutto,

I enjoyed your essay and have a few remarks.

Two of your references are Penrose and Verlinde.

Your interest in Penrose, if I understood you correctly, is his focus on angular momentum. I tend to agree with you on the significance of this, and invite you to read my essay, in which the C-field (my name for the Maxwell-Einstein gravito-magnetic field) is seen to be closely related to angular momentum.

You did not employ the ideas of Verlinde, but you do reference him as indicative of approaches being taken in the direction of discrete physics. You do not seem to actually use his work, so this remark may be inappropriate, but I have commented on my page and elsewhere about the assumptions that Verlinde need to 'derive' Newton's gravity. He makes 19 assumptions, some of them very questionable, before 'deriving' Newton's law.

In contrast, I make one assumption, that a universe consisting of only one (continuous) field can only evolve by interacting with itself. Applying Maxwell: energy=field squared, and Einstein: energy = mass, my master equation immediately reduces to Newton's law, then produces many other physics results. The details are on my comments page, if you're interested. I think this is an indication of the work necessary to impose a discrete interpretation on a continuous universe, as opposed to the ease of a continuous description. [Of course it may be easy for us only because of hundreds of years of mathematical development, who knows?]

You also state: "Furthermore, we may note that saying that the foundations of physics are continuous implies seeing the real numbers as a primitive concept."

I am not sure that this is the case. Mathematics is a descriptive language, and the language used to describe reality does not, in my opinion, influence reality, only our perceptions of reality. Nor is it necessary that reality enforce conventions on language, though that may be the case in practice.

Finally, I found your Feynman-like diagrams interesting, and wonder if they might not apply to a continuous world as well?

Good luck in the contest,

Edwin Eugene Klingman

Bookmark and Share
report post as inappropriate


Lawrence B. Crowell wrote on Feb. 5, 2011 @ 13:19 GMT
Noetherian currents are described by continuous groups and their representations. It is not possible to have these conservation laws in a completely discrete setting. One can construct conserved charges though. The question here is funny, for in a way I fail to see how one can construct a consistent theory of physics based completely on continuous or discrete settings. Quantities that we measure, which are bits or quantum bits, are discrete. However, there is an underlying continuous formalism required to adequately describe conservation laws.

Cheers LC

Bookmark and Share
report post as inappropriate


Alan Lowey wrote on Feb. 10, 2011 @ 15:06 GMT
Hi Daniel, thanks for your essay. I wondered whether you have considered the Archimedes screw as an analogy for the geometric structure of a particle/wave duality? T

Bookmark and Share
report post as inappropriate


Anton W.M. Biermans wrote on Feb. 24, 2011 @ 04:02 GMT
Dear Daniel,

In your very lucid essay you write:

-"According to one point of view, particles are an "epiphenomenon" and the fundamental theory is one of fields. [..] What is a quantum particle? "-

This suggests that the field is the primary phenomenon, the cause of the particle. In my essay I start from the assumption that in a self-creating universe particles have to create...

view entire post


Bookmark and Share
report post as inappropriate


Login or create account to post reply or comment.

Please enter your e-mail address:
Note: Joining the FQXi mailing list does not give you a login account or constitute membership in the organization.