Re: poly: eschatology

From: Peter C. McCluskey <>
Date: Sun Jan 18 1998 - 12:35:18 PST (Robin Hanson) writes:
>The theoretical attraction is for a very nearly critical mass
>universe. The key observation is that the mass density relative
>to critical density diverges with time. If this parameter is near
>one, then it must have been very very near one when the universe
>was orders of magnitude younger than it is now. And if it is now
>almost exactly one now, then it will be far from one when the
>universe is a few orders of magnitude older than now, and thus
>we are living at the unusual time when this parameter goes from
>being near one to being far from one. Theorists don't have any
>ideas I know of for this coincidence, so they'd rather it wasn't

 Barrow and Tipler mention on pages 494 and 500 of The Anthropic
Cosmological Principle a theory that all possible maximum sizes for
a closed universe are equally probable, implying that we should expect
omega to be infinitessimally close to one. (I don't know how this
theory handles the possibility of an open universe).

Peter McCluskey          | caffeine   O   CH3            |            ||  | |      H3C   C   N
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Received on Sun Jan 18 20:36:34 1998

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