[cripplecreek]

To me it seems to be a possible or impossible but unprovable in either situation.

At this point I guess travel to distant stars will come in the form of another method.

[PatrickHenry]

100

[gomaaa]

To me it seems to be a possible or impossible but unprovable in either situation.

At this point I guess travel to distant stars will come in the form of another method.

It's VERY provable, though not in the sense that we can actually build a spacecraft and accelerate a person in it to relativistic velocities, which is what you're picturing. We usually have to settle for subatomic particles, and we do this EVERY DAY. We simply would not be able to run a particle accelerator without accounting for special relativity. So if you have a proton travelling at 99.99999% of the speed of light (as opposed to a train) and it emits a photon (as opposed to turning on a flashlight) you get an independent confirmation of what WOULD happen if you were to be on a relativisitic train. The math is the same, and in physics that's what counts.