He's Ba-a-ack!

That most ephemeral of bloggers, WB, has been sighted again in the guise of The Statistical Mechanic.

He has an interesting post up on Wick Rotation, a subject which can't be entirely separated from the question of just what the heck imaginary numbers are anyway. Sometimes, as Joy Christian points out in the paper cited in my previous post, things that look like imaginary numbers turn out to be volume forms, or psuedo-scalars.

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