The infinite universes thing only matters if they aren't bounded. For example: there are an infinite number of values between 0 and 1, but none of them are 7. Case in point, slapping on more and more universes doesn't suddenly make Pokemon possible.
The answer to your question is probably the same as the answer to the question, "if God is omnipotent, can He create a rock that He can't lift?" --- I would prefer to be known as BlackWaltzTheThird, or just Waltz for short. Happily married to Hilda/Hilbert's MILF as of June 4th 2012.
If time is a constantly existing and measurable dimension like the other three dimensions in space, like how one explosion just won't reach farther than a certain point, perhaps we simply exist in the safe portion of our world and haven't hit the point where the theoretically 100% possible ass destroys everything . . .
It's hard to think outside of time, but unless you do that the notion you brought up can't really make much sense.
The answer is probably 42, though. --- Official Lopunny of the Black 2 Boar . . . wait, how did THAT happen?!?