John Baez

[anhinga_anhinga]

John Baez talks about string theory and why more physicists should concentrate on the other approaches in his latest "This Week's Finds in Mathematical Physics" (john_baez):

http://math.ucr.edu/home/baez/week246.html

The last part where he talks about "hill climbing" vs. "valley crossing" approaches to physics is especially interesting.

He also runs a very cool group blog together with David Corfield and Urs Schreiber called The n-Category Café. The latest entry is about a new attempt to formulate a topos foundation for theories of physics by Andreas Döring and Chris Isham.

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