ABOUT THE FQXi PODCAST

The FQXi podcast brings you the latest ideas in foundational physics and cosmology—and includes interviews with our members and other leading scientists. It's hosted by Zeeya Merali and Brendan Foster. You can contact us at podcast@fqxi.org, and follow us on twitter: @FQXi. The podcast is produced by Zeeya, and music is provided by Baltimore-based Diefenbaker.

The FQXi podcast brings you the latest ideas in foundational physics and cosmology—and includes interviews with our members and other leading scientists. It's hosted by Zeeya Merali and Brendan Foster. You can contact us at podcast@fqxi.org, and follow us on twitter: @FQXi. The podcast is produced by Zeeya, and music is provided by Baltimore-based Diefenbaker.

RECENT FORUM POSTS

**George Musser**: "Imagine you could feed the data of the world into a computer and have it..."
*in* Will A.I. Take Over...

**Steve Dufourny**: "Personally Joe me I see like that ,imagine that this infinite eternal..."
*in* First Things First: The...

**Steve Dufourny**: "Joe it is wonderful this,so you are going to have a nobel prize in..."
*in* First Things First: The...

**Robert McEachern**: ""I'm not sure that the 'thing as it is' is irrelevant." It is not. It is..."
*in* Schrödinger’s Zombie:...

**Steve Dufourny**: "lol Zeeya it is well thought this algorythm selective when names are put in..."
*in* Mass–Energy Equivalence...

**Steve Dufourny**: "is it just due to a problem when we utilise names of persons?"
*in* Mass–Energy Equivalence...

**Georgina Woodward**: "I suggested the turnstiles separate odd form even numbered tickets randomly..."
*in* Schrödinger’s Zombie:...

RECENT ARTICLES

*click titles to read articles*

**First Things First: The Physics of Causality**

Why do we remember the past and not the future? Untangling the connections between cause and effect, choice, and entropy.

**Can Time Be Saved From Physics?**

Philosophers, physicists and neuroscientists discuss how our sense of time’s flow might arise through our interactions with external stimuli—despite suggestions from Einstein's relativity that our perception of the passage of time is an illusion.

**Thermo-Demonics**

A devilish new framework of thermodynamics that focuses on how we observe information could help illuminate our understanding of probability and rewrite quantum theory.

**Gravity's Residue**

An unusual approach to unifying the laws of physics could solve Hawking's black-hole information paradox—and its predicted gravitational "memory effect" could be picked up by LIGO.

**Could Mind Forge the Universe?**

Objective reality, and the laws of physics themselves, emerge from our observations, according to a new framework that turns what we think of as fundamental on its head.

RECENT ARTICLES

Why do we remember the past and not the future? Untangling the connections between cause and effect, choice, and entropy.

Philosophers, physicists and neuroscientists discuss how our sense of time’s flow might arise through our interactions with external stimuli—despite suggestions from Einstein's relativity that our perception of the passage of time is an illusion.

A devilish new framework of thermodynamics that focuses on how we observe information could help illuminate our understanding of probability and rewrite quantum theory.

An unusual approach to unifying the laws of physics could solve Hawking's black-hole information paradox—and its predicted gravitational "memory effect" could be picked up by LIGO.

Objective reality, and the laws of physics themselves, emerge from our observations, according to a new framework that turns what we think of as fundamental on its head.

PODCAST

October 17, 2019

Complete Podcast

The FQXi **August 12, 2019** Podcast features:

- How Do We Make Decisions? -- Carlo Rovelli

INFO: **MP3 file / 36 minutes / 60 MB**

LISTEN:

Individual Stories

How Do We Make Decisions? -- Carlo Rovelli

The science behind choice. Physicist Carlo Rovelli investigates the link between agency, time's arrow, and thermodynamics. From the 6th FQXi meeting, in Tuscany.

INFO: **MP3 file / 37 minutes / 60 MB**

LISTEN:

RELATED LINKS:

*FQXi article:*First Things First: The Physics of Causality*FQXi essay contest:*Meaning and Intentionality = Information + Evolution , by Carlo Rovelli

PODCAST ARCHIVE

- Quantum Supremacy Milestone?

- Quantum Mind Reading -- Adam Brown

- Downward Causation -- George Ellis

- Designing the Mind -- Susan Schneider

- Measuring Free Will -- Ian Durham

- Building an AI Physicist -- Max Tegmark

- Future of Computation -- Fred Adams

- Memory, Causality and Cats -- Sean Carroll

- 2018: Year in Physics Part 2

- 2018: Year in Physics Review Part 1

- Superhuman

View All Archived Podcasts

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ROBERT H MCEACHERN wrote on August 19, 2019

Real measurements of what? Bell's theorem is a mathematical theorem, not a physical theory; it demands that "measurements" be made on mathematically-identical pairs of particles. But there is no evidence that such idealized things "really" exist, in the "real" world. Hence, none are likely to ever be measured. Indeed, the "real" measurements, made in "real" Bell tests, amount to nothing more than a "reduction to an absurdity" demonstration of the falsity of the theorem's identical-particle...

Real measurements of what? Bell's theorem is a mathematical theorem, not a physical theory; it demands that "measurements" be made on mathematically-identical pairs of particles. But there is no evidence that such idealized things "really" exist, in the "real" world. Hence, none are likely to ever be measured. Indeed, the "real" measurements, made in "real" Bell tests, amount to nothing more than a "reduction to an absurdity" demonstration of the falsity of the theorem's identical-particle...

STEVE AGNEW wrote on August 18, 2019

I like how stubbornly you stick to your argument...but you should at least do a real measurement to show your point and not calculate a set of measurements with some assumed Shannon error. At least then we would be arguing about measurements and not about calculated measurements...

I like how stubbornly you stick to your argument...but you should at least do a real measurement to show your point and not calculate a set of measurements with some assumed Shannon error. At least then we would be arguing about measurements and not about calculated measurements...

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