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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.

Thomas Ray: "(reposted in correct thread) Lorraine, Nah. That's nothing like my view...." in 2015 in Review: New...

Lorraine Ford: "Clearly “law-of-nature” relationships and associated numbers represent..." in Physics of the Observer -...

Lee Bloomquist: "Information Channel. An example from Jon Barwise. At the workshop..." in Physics of the Observer -...

Lee Bloomquist: "Please clarify. I just tried to put a simple model of an observer in the..." in Alternative Models of...

Lee Bloomquist: "Footnote...for the above post, the one with the equation existence =..." in Alternative Models of...

Thomas Ray: "In fact, symmetry is the most pervasive physical principle that exists. ..." in “Spookiness”...

Thomas Ray: "It's easy to get wound around the axle with black hole thermodynamics,..." in “Spookiness”...

Joe Fisher: "It seems to have escaped Wolpert’s somewhat limited attention that no two..." in Inferring the Limits on...

click titles to read articles

The Complexity Conundrum
Resolving the black hole firewall paradox—by calculating what a real astronaut would compute at the black hole's edge.

Quantum Dream Time
Defining a ‘quantum clock’ and a 'quantum ruler' could help those attempting to unify physics—and solve the mystery of vanishing time.

Our Place in the Multiverse
Calculating the odds that intelligent observers arise in parallel universes—and working out what they might see.

Sounding the Drums to Listen for Gravity’s Effect on Quantum Phenomena
A bench-top experiment could test the notion that gravity breaks delicate quantum superpositions.

Watching the Observers
Accounting for quantum fuzziness could help us measure space and time—and the cosmos—more accurately.

February 23, 2018

Complete Podcast
The FQXi December 16, 2012 Podcast features:
  • The Year in Physics: 2012 Review
  • Time & the String Multiverse
  • The Building Blocks of Spacetime
INFO: MP3 file / 60 minutes / 59 MB
DOWNLOAD (right-click Windows, control-click Mac)
DISCUSS in the FQXi Community Forum
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Featured video in this podcast:
Individual Stories
The Year in Physics: 2012 Review
Physicist Ian Durham countdowns his highlights of 2012, including advances in astronomy, quantum foundations & particle physics. (Extended interview.)
INFO: MP3 file / 28 minutes / 27 MB
DOWNLOAD (right-click Windows, control-click Mac)
Time & the String Multiverse
Raphael Bousso searches for the origin of time's arrow in the multiple universes predicted by string theory.
INFO: MP3 file / 17 minutes / 16 MB
DOWNLOAD (right-click Windows, control-click Mac)
The Building Blocks of Spacetime
Joanna Karczmarek argues that spacetime is not fundamental -- and looks to string theory to find out what it's made from.
INFO: MP3 file / 13 minutes / 12 MB
DOWNLOAD (right-click Windows, control-click Mac)
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Recent Comments

Hi Brendan,

The silence is deafening!

No, I think these threads are created automatically and then immediately disappear from view -- and nobody knows how to access them. I will post something on the main blog about the latest edition. When posts about the podcast appear there, they are more visible.

It occurred to me that people may not realize we have discussion forums for each podcast. Or are the podcasts so perfectly self-contained that no comment is necessary?

This is a discussion of the FQXi Podcast from December 16, 2012

read all podcast comments

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