From: Anders Sandberg (asa@nada.kth.se)
Date: Tue Dec 29 1998 - 01:29:30 MST
"Billy Brown" <bbrown@conemsco.com> writes:
> In the short term, yes. In the long term ( >10^50 years) no - when the
> average distance between adjacent particles is measured in light years, the
> idea of building anything complex enough to be alive looks pretty dubious.
Well, an entity composed of multi-million lightyear positronium pairs
and faint gravity waves, thinking thoughts over eons in a silent and
cold universe doesn't strike me as that bizarre. Much weirder things
are already happening in mathematics :-) Whether this is implementable
is another question, we need something like a billiard ball computer
CA example to see if it is feasible according to known laws of
physics, and then of course arguments for the practical
implementability.
> > Even if that is true it doesn't change the problem of indefinite
> > survival. As far as I know nobody is suggesting steady state theories
> > at least, and without them you get a Dyson or Tipler choice, so to
> > say.
>
> My point is simply that it isn't productive to speculate on the terminal
> evolution of the universe based on a theory that is almost certainly
> incorrect. It is possible that some moderate adjustment of the big
> bang/inflation model will make it fit reality, but it is just as likely that
> the entire concept will have to be thrown out.
You seem to be assuming that if you remove the big bang model, you
will also need to get rid of everything associated with it - including
the expansion of the universe, apparently the dynamics of spacetime
and everything else done in cosmology. It is a bit like saying
"because we don't have a correct formulation of quamtum gravity
everything we know about quantum mechanics is wrong, so it is
impossible to speculate on the future of solid state circuits".
Besides, I seriously doubt that the big bang theory is in that much
trouble. So far none of the alternatives seems to get along without
even weirder epicycles or have strong observational evidence.
> If that happens, who knows
> what the new parameters will be? Meanwhile, why generate angst over purely
> hypothetical events that might happen billions of years in the future?
Hmm, why are we debating uploading and the singularity on this list?
-- ----------------------------------------------------------------------- Anders Sandberg Towards Ascension! asa@nada.kth.se http://www.nada.kth.se/~asa/ GCS/M/S/O d++ -p+ c++++ !l u+ e++ m++ s+/+ n--- h+/* f+ g+ w++ t+ r+ !y
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