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

**Georgina Woodward**: "Re. my "Arms affected by mechanical forces..." There is the force at the..."
*in* Bonus Koan: Distant...

**Joe Fisher**: "Dear Dr. Kuhn, Today’s Closer To Truth Facebook page contained this..."
*in* First Things First: The...

**Steve Dufourny**: "Lie groups, there are SU(N),SO(N),Sp(N), and the exceptional G_2, F_4, E_6,..."
*in* Measuring Free Will: Ian...

**Steve Agnew**: "There might indeed be a way to measure free will just like there is a way..."
*in* Measuring Free Will: Ian...

**Robert McEachern**: "Real measurements of what? Bell's theorem is a mathematical theorem, not a..."
*in* The Physics of...

**Lorraine Ford**: "People like Susan Schneider and Max Tegmark are barking up the wrong tree. ..."
*in* Designing the Mind: Susan...

**Georgina Woodward**: "I've tried to show that the spinning motion is not absolute (as the term is..."
*in* Bonus Koan: Distant...

**Steve Agnew**: "Here is a nice slide from Gu's talk that shows the superposition of..."
*in* Memory, Causality and...

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

August 20, 2019

Complete Podcast

The FQXi **July 30, 2019** Podcast features:

- Memory, Causality and Cats -- Sean Carroll

INFO: **MP3 file / 24 minutes / 58 MB**

LISTEN:

Individual Stories

Memory, Causality and Cats -- Sean Carroll

Cosmologist Sean Carroll is searching for a mathematical description of why causes precede effects and asking what makes our memories of the past special and different from calculations of what went before. Audio of a talk from the FQXi meeting in Tuscany.

INFO: **MP3 file / 24 minutes / 58 MB**

LISTEN:

RELATED LINKS:

*FQXi article:*First Things First

PODCAST ARCHIVE

- Downward Causation -- George Ellis

- Designing the Mind -- Susan Schneider

- Measuring Free Will -- Ian Durham

- How Do We Make Decisions? -- Carlo Rovelli

- Building an AI Physicist -- Max Tegmark

- Future of Computation -- Fred Adams

- 2018: Year in Physics Part 2

- 2018: Year in Physics Review Part 1

- Superhuman

- Neutrino Mysteries
- Fuzzballs Solve Black Hole Paradox
- Almost Quantum
- Testing Free Will with AI

- Losing the Nobel Prize

View All Archived Podcasts

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STEVE AGNEW wrote on August 18, 2019

Here is a nice slide from Gu's talk that shows the superposition of precursors and outcomes. Note that time emerges from precursors and outcomes and so the past, present, and future all emerges from things that happen.

Things do not happen in a mostly empty space and time, but rather the notions of space and time emerge from things that happen...

Here is a nice slide from Gu's talk that shows the superposition of precursors and outcomes. Note that time emerges from precursors and outcomes and so the past, present, and future all emerges from things that happen.

Things do not happen in a mostly empty space and time, but rather the notions of space and time emerge from things that happen...

STEVE AGNEW wrote on August 18, 2019

You may not believe that precursors and their outcomes exist in quantum superpositions, but that is exactly what quantum reality means. Usually these superpositions are dephased rather quickly into a seeming determinate reality, but really there are unknowable quantum precursors...

You may not believe that precursors and their outcomes exist in quantum superpositions, but that is exactly what quantum reality means. Usually these superpositions are dephased rather quickly into a seeming determinate reality, but really there are unknowable quantum precursors...

GEORGINA WOODWARD wrote on August 11, 2019

As for the quantum jump of an electron between energy levels of an atom: I think there are two possibilities more likely than instantaneous transition without moving between the positions through space. Firstly the transition could be so fast, the electron is never detected in transition. The other possibly, the electron is in a form unlike an electron at a particular energy level. A form not detectable as an electron. So the jump in a number or numbers denoting position is due to lack of...

As for the quantum jump of an electron between energy levels of an atom: I think there are two possibilities more likely than instantaneous transition without moving between the positions through space. Firstly the transition could be so fast, the electron is never detected in transition. The other possibly, the electron is in a form unlike an electron at a particular energy level. A form not detectable as an electron. So the jump in a number or numbers denoting position is due to lack of...

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