I saw this really cool show like 4 or more months ago. I wish I could remember more. The episode was about time travel and the theory Einstien made and how modern physics is evolving and adding to time travel theories. I don't remember too well so I could be wrong.
In a way, if you travel fast enough, others around you would travel slower from your point of view. So if you move fast enough you would reach a time ahead of others. It was really cool, darn I'd like to see it again.

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