[extropy-chat] Sasha is alive!

[Giu1i0 Pri5c0]

Eugen, I would say that *the particular mechanism" proposed by Tipler
and based on a future big crunch has been falsified *on the basis of
the currently available cosmological evidence*. Not the core concept
itself.
I can relate to Kurzweil's "if the universe is open or closed will be
for us to decide when the time is right".
I am the first to admit that this is idle speculation in absence of
any hard fact or plausible theory, but sometimes also idle
speculations can advance science in the sense of steering one's
toughts on a certain path. Provided, of course, that one does not take
speculations as facts.
So I prefer remaining agnostic on this point and think "well, maybe".
G.

On 1/3/07, Eugen Leitl <eugen at leitl.org> wrote:
> On Tue, Jan 02, 2007 at 03:53:32PM -0800, Samantha Atkins wrote:
>
> > > A rather large amount of physical and computational effort would be
> > > required to gather this information and reconstitute Sasha from it,
> > > but "in principle" it should be possible if quantum theory and the
> > > decoherence interpretation are correct.
> > >
> >
> > Regardless of the amount of computational and physical resources
> > available there is no way to build a Sasha-bit detector with which to
> > sort all this information without already having most of the Sasha
> > relevant information.
>
> Physical systems can and do erase information. Whether such locally
> lost information is still contained in the universe is moot if you
> can't read it -- you certainly can't catch Sasha's light cone after
> the fact. "Physics of Immortality" gives a very special case where
> this would be possible at the end of time and space, but then,
> "Physics of Immortality" has been falsified.
>
> Your best chances to survive would seem 1) not dying 2) cryonics
> in that order. Unfortunately, none of these are an option for Sasha.
> His information is lost forever.
>
> --
> Eugen* Leitl <a href="http://leitl.org">leitl</a> http://leitl.org