Paul_Crowley2 comments on On Being Decoherent - Less Wrong

14 Post author: Eliezer_Yudkowsky 27 April 2008 04:59AM

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Comment author: Paul_Crowley2 27 April 2008 09:33:20AM 0 points [-]

It's not known whether the Universe is finite or infinite, this article gives more details:

http://en.wikipedia.org/wiki/Shape_of_the_Universe

If the Universe is infinite, then it has always been so even from the moment after the Big Bang; an infinite space can still expand.

It hadn't quite sunk in until this article that looked at from a sum-over-histories point of view, only identical configurations interfere; that makes decoherence much easier to understand.