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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...


Steve Agnew: "In a contracting universe, the slowing of time as we look back into time..." in Black Holes Do Not Exist,...

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click titles to read articles

Life's Quantum Crystal Ball
Does the ability to predict the future—perhaps with quantum help—define the fundamental difference between living and inanimate matter?

The Quantum Truth Seeker
Watching particles fly through an interferometer might help to unveil higher-order weirdness behind quantum theory.

Quantifying Occam
Is the simplest answer always the best? Connecting Medieval monks to computational complexity, using the branch of mathematics known as category theory.

Heart of Darkness
An intrepid physicist attempts to climb into the core of black hole.

Why Quantum?
Entropy could explain why nature chose to play by quantum rules.

October 20, 2014

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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