No Grand Gnab

Dan'l Danehy-Oakes · 14 Feb 2003, 18:31 · from urth-v0302.mbox · original

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From: "Dan'l Danehy-Oakes" <ddanehy at siebel.com>
Subject: RE: (urth) No Grand Gnab
Date: Fri, 14 Feb 2003 11:31:37 -0700
Message-ID: <urth-v0302-2934 at digest.urth.net>
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> What confuses me about this article is that they seem (or=3D20
> claim) to know just how much dark matter there is in the
> universe - I'm not sure how they're coming up with those
> numbers.

Probably reverse-engineering ... with data like this, I=3D20
suppose they have enough information to work out the higher-
order differentials (i.e., the rate change of the rate of=3D20
change of ... ) of the expansion of the universe. Given
that, they could extrapolate _forward_ and determine
whether the slowing expansion will reverse into a collapse
or just continue to expand at a rate that asymptotically
approaches zero.

Or something.

Hey, I just live in the universe, I don't run it...

--=20

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