From: hal@finney.org
Date: Sat Dec 16 2000 - 09:16:16 MST
Scerir forwards:
> L.M. Krauss and G.D. Starkman wrote that:
> http://arxiv.org/abs/astro-ph/9902189
> "We have shown that it is impossible to collect more than
> a finite amount of any quantity that scales as the (scale-factor)^3 .
> However, the entropy density of the universe scales in this fashion.
> Thus, independent of issues of whether there is infinite information
> in an infinite universe, it is impossible to collect more than a finite
> amount. Effectively even an infinite universe allows only a finite
> computational system.
This is in the context of an eternally expanding universe, one which
never collapses. It is too early to say for sure that our universe has
this structure, especially given that the evidence is only a couple of
years old.
> The eternal expansion which Dyson found so appealing is a chimera."
As I have commented before, Tipler had already established this.
Hal
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