>> I wish it is possible, it is kind of exciting to imagine...
>
> Just wish to point out that there are many concepts that are fact
> today...and which were considered utterly impossible before
This one, it is really a mind bender to consider how it could be possible.
Because of the relativistic phenomena of the "relativity of
simultaneity", if faster-than-light travel was possible, we would have
to throw away causality. I don't know about you, but I like causality.
It's rather hard to imagine what life would be without it.
>From wikipedia:
If the spatial distance between two events A and B is greater
than the time interval between them multiplied by c then
there are frames of reference in which A precedes B, others
in which B precedes A, and others in which they are
simultaneous. As a result, if something were travelling
faster than c relative to an inertial frame of reference, it
would be travelling backwards in time relative to another
frame, and causality would be violated. In such a
frame of reference, an "effect" could be observed before
its "cause". Such a violation of causality has never been
recorded, and would lead to paradoxes such as the
tachyonic antitelephone.
http://en.wikipedia.org/wiki/Speed_of_light#Upper_limit_on_speeds
Exciting times indeed.
