OFF: SETI, ETs

[Martyn White]

> artificial gravity fields.
Steve writes
>Well, this isn't exactly the same principle, but you can slow down
>subjective time just by accelerating for long enough.  I forget the
>formula, but the letter tau is used as a measure of how fractionally
>removed from light speed you are.  As T approaches 0, you get closer
>and closer to experiencing no progress of time - in other words, if
>you travel your whole journey at .9999999 of lightspeed, then you
>would subjectively appear to arrive instantaneously, even though
>though an outside observer would note that it took... well... however
>long light would take.  :-)

        So long, in fact, that when you get back, you would have
to replace your girlfriend with an android replica :-)

Martyn