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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, and follow us on twitter: @FQXi. The podcast is produced by Zeeya, and music is provided by Baltimore-based Diefenbaker.

Georgina Woodward: "'Sharp comb" and 'shredder' are used as similes and metaphors because the..." in Schrödinger’s Zombie:...

Sydney Grimm: "Lorraine, Let’s take an example: E= mc[sup]2[/sup]. It is an equation..." in Measuring Free Will: Ian...

Jason Wolfe: "I cannot say that I am enthusiastic about where philosophy has led us. We..." in The Demon in the Machine...

Jason Wolfe: "How can there be any talk of determinism when the real world is built upon..." in Measuring Free Will: Ian...

Georgina Woodward: "I might be able to improve on that description. It's early days.If it is a..." in Schrödinger’s Zombie:...

Robert McEachern: ""do you agree with Davies that these questions will need new physics?" It..." in The Demon in the Machine...

Zeeya Merali: "Joe, You appear to really want to contact Dr Kuhn about his Closer to..." in First Things First: The...

Joe Fisher: "(Zeeya's note: Joe I've deleted the text of this post. It appears to be..." in First Things First: The...

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.

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.

September 21, 2019

Complete Podcast
The FQXi September 8, 2019 Podcast features:
  • Quantum Mind Reading -- Adam Brown
INFO: MP3 file / 28 minutes / 60 MB
DOWNLOAD (right-click Windows, control-click Mac)
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Featured video in this podcast:
Individual Stories
Quantum Mind Reading -- Adam Brown
Could we create a quantum experiment that could predict what a person will do, without simulating their consciousness? Physicist Adam Brown argues that a classic quantum "bomb tester" experiment, proposed in the 1990s, could be modified to do just that.
INFO: MP3 file / 28 minutes / 60 MB
DOWNLOAD (right-click Windows, control-click Mac)
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Recent Comments

'Sharp comb" and 'shredder' are used as similes and metaphors because the waves are not just being moved out of the way but being 'cut', as part is absorbed by the pigment crystals of the polarizer and does not proceed. The terms should be thought of as a loose analogy, a simplification, for what is really going on at the level of particles.

I might be able to improve on that description. It's early days.If it is a valid description of what is happening in 3D space, it is showing that whether an individual photon gets through a polarizer is not a pre-existing characteristic of the photon but a natter of where it is in the wave when wave and polarizer meet and the challenge presented by the polarizer. Since it is not a characteristic of the photon Bell's inequalities don't apply.

That's OK Robert.I'm happy doing my own thing. I'm more interested in material reality than quantum weirdness.This is just another paradox I'd like to put to rest.

I've been thinking about the 'light' waves in space, being shredded and recombined. Thinking of the first polarizer like a sharp comb taking out the parts that are too horizontal. Leaving combed light which is more uniform, more alike in its vertical-ness. The second polarizer I'm thinking of as a shredder that cuts the waves....

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