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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.
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RECENT ARTICLES
click titles to read articles

Building Agency in the Biology Lab
Physicists are using optogenetics techniques to make a rudimentary agent, from cellular components, which can convert measurements into actions using light.

Think Quantum to Build Better AI
Investigating how quantum memory storage could aid machine learning and how quantum interactions with the environment may have played a role in evolution.

Outside the Box
A proposed quantum set-up that could predict your game-playing strategy resurrects Newcomb’s classic quiz show paradox.

The Quantum Agent
Investigating how the quantum measurement process might be related to the emergence of intelligence, agency and free will.

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.



PODCAST
May 31, 2020

Complete Podcast
 
The FQXi December 24, 2019 Podcast features:
  • Schrödinger Squared
INFO: MP3 file / 57 minutes / 60 MB
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Featured video in this podcast:
Individual Stories
Schrödinger Squared
An amped up version of the Schrodinger Cat Paradox spells trouble for all quantum interpretations -- according to its architect Renato Renner. He tells Zeeya and Brendan how the controversial thought experiment works, and why he thinks it is bad news for fans of Many Worlds and quantum parallel universes, QBism, Collapse models and (less so) for Bohmian interpretations of quantum mechanics. But not everyone agrees.
INFO: MP3 file / 57 minutes / 60 MB
DOWNLOAD (right-click Windows, control-click Mac)
LISTEN:
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Recent Comments


George,

We shouldn't conflate contradiction with inconsistency. QM has a dynamic track record not only of prediction in application to specific tasks, but also in discovery. Its worth noting that where we have seen discovery in QM it has been by theoretical regimes which are quasi-Relativistic, ie: inverse square law subject to Lorentz Invariance.

The question posed by Frauchiger and Renner, does contend inconsistency. But all the underpinning of QM parameters are classical laws...


Georgi,

by and large I agree. Near the end of the discussion panel, Aaronson summed it as what is proven is that we can prove QM is a theory. The 'why' that it works is omething that goes to vast numbers of events in the simplest macroscopic thing. A mature Maple tree in my neighborhood might produce 30,000 leaves in a season, yet there is still a small area way up in the wind where a few, scattered, dead leaves cling to their twigs in January. What are the odds of that, and what odds of...


Thanks for taking the time John. By 'relying on what they are sent' I mean what I think you are referring to as the 'classical record'.

Right now I'm thinking you can't make silk purse out of a sows ear. It starts out with quantum correlations and uses quantum maths and quantum explanations and ends up with something unexpected. I'm not sure if it is a true paradox, an impossibility (most likely indicating something wrong with the theory) or just what you get if you follow the...

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