I was talking to a friend of mine the other day and he mentioned string theory to me..I had no clue what it was so I looked it up but didnt exactly understand it. My friend tells me it's a theory of parallel universes? He said something like there are different dimensions with different time zones, and there's more than one you. I dont quite follow..if that's true, then how has this been 'eligible' to be a theory. Im not saying I dont believe it, but I mean, how could it be proven or how was it thought up?