So the basic premise of the theory (Hugh Everett's "many worlds") is that every time you make a decision a different version of you branches off and makes a different one, in a parallel universe.
We can't observe this, only do math and speculate, but if we could it might look something like this:
http://www.popsci.com/entertainment-gaming/article/2008-03/super-mario-multiverse
Check that out and offer your thoughts.








