That's funny you mentioned that, ha...because I did see that episode and FTL time travel has always interested me, after watching that I decided to do some more research on it.
I'm still not quite gettin it though...I don't understand the basic SR behind it. Granted that Daphne ran back in...
I found a decent page explaining this but it's a little deep for my understanding.
I think I understand the basics of special relativity where the speed of light remains constant regardless the velocity of 2 observers, the laws of physics do not depend on location or motion, and that length...