Posted: Nov 13, 2011 3:21 am
by surreptitious57
Time travel is a theoretical possibilty but
only forward and not backward. The reason
for this is because of General Relativity which
is flat space. Possible however to travel forwads
because of Special Relativity which is curved space

As Einstein referenced light speed is a constant
[ in a vacuum ] so the variable must therefore apply
to time. If time travel were a physical possibility then if
travelling at relative light speed would mean time slowed down
relative to anyone at a fixed point where it would speed up instead