Time Dilation

[Koh]

I've just been reading up on the theory of Time Dilation, and found it quite interesting.  I'm no science major, but the fact that we've basically delved into the concept of time travel, even if it's only one way, intrigues me.


As a sort of summary, Time Dilation occurs when an object is moving faster relative to another stationary or slower moving object.  The closer the faster object's speed reaches the speed of light, the more time dilation occurs.  There were a few experiments performed, the most popular being the atomic clock experiment, the information of which is provided on the above link.

This is basically a theory on one way time travel, in that if one were to constantly move at such high speeds compared to everyone else on Earth for X period of time, they'd go into the future by Y amount of time, while Z amount of time has passed for those on Earth, where Y < Z - X.

Has anyone heard of this theory before?  What are your thoughts on it?