In message , Whisper
writes

Can someone explain in layman's terms how time travel is possible the closer
we get to speed of light?

I understand it's not possible to travel 'back' in time, only forward.


Actually, one of the problems with relativity is that it has no problems
with time travel into the past.
I don't usually discuss anything to do with relativity, because it gives
me a headache :-) but I'll just note that the time dilation effect (and
the related apparent shrinkage of rulers moving at high speeds) is
because there is no such thing as absolute time, because the laws of
science are the same for everyone, and in particular the speed of light
is the same. If you are moving close to the speed of light you see it
cover less distance in a given time than if you are stationary. The
speed is the same, so time "must" be passing more slowly.
--
"Forty millions of miles it was from us, more than forty millions of miles of
void"
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