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Zeeya Merali: on 1/14/14 at 21:18pm UTC, wrote Depending on how familiar you are with FQXi, you may know that we like to...


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click titles to read articles

Collapsing Physics: Q&A with Catalina Oana Curceanu
Tests of a rival to quantum theory, taking place in the belly of the Gran Sasso d'Italia mountain, could reveal how the fuzzy subatomic realm of possibilities comes into sharp macroscopic focus.

Dropping Schrödinger's Cat Into a Black Hole
Combining gravity with the process that transforms the fuzzy uncertainty of the quantum realm into the definite classical world we see around us could lead to a theory of quantum gravity.

Does Quantum Weirdness Arise When Parallel Classical Worlds Repel?
Quantum mechanics could derive from subtle interactions among unseen neighboring universes

Wrinkles in Spacetime
Searching for defects in the fabric of the cosmos could help physicists home in on the correct theory of quantum gravity.

Blurring Causal Lines
Quantum experiments mix past and future on the microscopic scale—opening the door to faster computers and revising our notion of causality.

May 30, 2016

CATEGORY: Blog [back]
TOPIC: String theory vs Loop Quantum Gravity: Bousso and Rovelli FIGHT (backwards) [refresh]
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FQXi Administrator Zeeya Merali wrote on Jan. 14, 2014 @ 21:18 GMT
Depending on how familiar you are with FQXi, you may know that we like to cause a little mischief at our conferences. Knowing that we had famed string theorist Raphael Bousso and Carlo Rovelli, one of the originators of loop quantum gravity, in the same room, we couldn't resist asking them to debate these rivals routes to a theory of quantum gravity.

Both men are passionate about their work and fierce defenders of their own theories. So, of course, we turned the debate upside down and asked them argue the *reverse* position.

So here's LQG proponent Carlo Rovelli explaining why anyone with any sense would be a string theorist, while string theorist Raphael Bousso staunchly defends LQG as the superior theory:

And if you liked that, here are some of our classic mock debates from our previous meeting.

Julian Barbour and Tim Maudlin reverse debate the reality of time:

And David Albert and David Wallace switch positions on the Many World's Interpretation of quantum mechanics:

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