That Time Does Not Run Backward
Jean Hoefling
Particle physicist Brian Cox claims that actual time travel is now pretty much a sure thing. To simplify, it seems all we have to do is tinker a bit with Einstein’s General Theory of Relativity and it’s a relative cinch to play time forward. The past is a different story; apparently the theory doesn’t work so well in reverse, which implies you can’t journey back to your senior prom and be even cooler than you already were that night.
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