X-Message-Number: 31709
Date: Mon, 1 Jun 2009 13:11:03 -0700 (PDT)
From: david pizer <>
Subject: RE: Cryonet post - Time Travel


Unless someone asks me not to, I am going to take the liberty of answering 
comments that I find interesting on this subject of trying to rescue loved ones 
who did not get frozen/suspended on Cryonet so that the discussion is shared 
with a bigger audience.  (when enough people complain this is too boring, I will
drop it)


The big problem of backward time travel, as one of my philosophy professors used
to say (a lot) is that if a person could travel back in time and he did and 
then he killed his mother before he was conceived then he would not exist so he 
could not travel back in time .. etc etc...


R has pointed out (below) that by creating simulations that can exactly 
duplicate history without having to be in the past (we can create brains exactly
as they existed in the past and then revive those brains in the current time 
and IF an exact duplicate of your mind/brain IS you) then we can rescue people 
from the past without risking changing the past in such a way that the future is
then also changed.

R said:

> This whole concept might solve the traditional
> time-travel's paradox of changing the past; since
> it's a simulation, change would be under the control of
> us (the computer system) without affecting the actual
> events.  An historian's dream: the ability to
> clearly see and study historical events and answer
> "What If" questions, neatly side-stepping the
> Heisenberg uncertainty principle!
 
I hope so - David

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