TIL about the existence of the Hairy Ball Theorem. http://en.wikipedia.org/wiki/Hairy_ball_theorem …
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Replying to @ozymandias314
@ozymandias314 I used the HBT to refute the Kalam cosmological argument once!1 reply 0 retweets 0 likes -
Replying to @ozymandias314
@ozymandias314 But the arrow of time defines a vector field on the spacetime manifold, and by the HBT there may be points in spacetime...2 replies 0 retweets 0 likes -
Replying to @shlevy
@shlevy @ozymandias314 Spacetime in GR is a 4-manifold. Nobody knows if it's a sphere or torus or what.
10:47 AM - 28 Jul 2013
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. Banned in Sweden. SubGenius, Zhuangist, white-hat troll. Defrocked mathematician. Brain problems.