🚀 go-pugleaf

In article <1992Sep29.171040.26549@hellgate.utah.edu> tolman%mindblow.cs.utah.edu@cs.utah.edu (Kenneth Tolman) writes:
>  A frame of reference moving very very fast has a time dilation, correct?
>(That is, if we are still and looking at someone moving they are "slow")
>When we look out into the universe- all galaxies are moving away from us,
>and the very far away galaxies are moving near the speed of light.

So far so good.  When you look into the night sky, you're looking into 
the past-- a few years ago for the nearby stars, a few billion years ago
for distant galaxies.

>Therefore, THEIR TIME HAS BARELY BEGUN.  Their civilization's have not 
>started, and they live in a "young" universe.  

Whoops, no.  It's true that we see Andromeda as it was two million years 
ago.  But it's not that Andromeda is stuck in the past.  It continues to
exist, in the present; it's just that our news from there is two million 
years out of date.

>Thus, if we could travel
>faster than light, we could jump backwards and live this whole universe
>through once again.  

No; even if you could travel instantaneously, you could only arrive in
the Andromeda of today (whose light won't reach us back on Earth for two
million years), not the Andromeda we see (that of two million years ago).