[neutralino]

Originally Posted by Cloudchaser Now some relativity: If we were able to get on a spaceship and accelerate towards the speed of light, the theory of relativity says that time will begin to slow down relative to the folks back on earth. The closer we get to the speed of light the slower the time on our spaceship. Relativity says we cant go the speed of light, but if we were able to, once we were traveling at the speed of light, time would stand still on our spaceship relative to the time on earth.

Your arguments are all based on this point; namely that if we were moving at the speed of light, we would see time stand still on our spaceship relative to the earth. However, here you say, quite rightly, that relativity does not hold in this circumstance. That is, a massive body cannot move at the speed of light, and there does not exist an inertial frame of reference at rest with respect to the photon. Thus, you cannot derive anything from this point of view.

As to the fate of the universe: I was going to write something, but figured I'll just link to this article, since John Baez says it a lot clearer than I can!

Opps,this should have gone in the time and space topic. I hope it can be moved. Sorry.

Finally, is this in the place you intended to post it now? I can't see if it's been moved since you added that comment or not!