Re: Tipler's Conjectures

Date: Fri May 04 2001 - 15:20:28 MDT said:
> If things fly apart in an accelerating manner, it doesn't matter
> whether the density will be eventually zero, or almost zero. It's
> enough to know that you can't get theah from heah. Welcome to
> Gilligan's Island. Hope you like it here, for you're going to stay
> here for a looong time.

I remember some of Tipler's arguments, and the discussions we had around
the topic, though I won't claim to have worked through the physics in
detail. My recollection is that if you can make local areas with
sufficient density, you can get a lot of work done. If global density goes
to zero, I think I remember that it gets hard to gather sufficient material
anywhere. If the global density asymptotically approaches some non-zero
limit, I thought there was a chance to make islands of sufficient density.
Am I misremembering the argument? Did Tipler assume (or conclude) that you
needed to have *all* the material in the universe collapsing in order to
get omega-point effects?


             C. J. Cherryh, "Invader", on why we visit very old buildings:
                         "A sense of age, of profound truths.  Respect for 
Chris Hibbert        something hands made, that's stood through storms and   wars and time.  It persuades us that things we do may
                                                         last and matter."

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