March 4th, 2007

story, magpie

John Baez

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.