This also goes for any decision you make. You make the decision & an alternate universe pops up where you did something else or didn't do anything at all (and with my luck, there'd be many alternate universes popping up each & every infiniteth of a second due to this logic).
Infiniteth: An infinitely small piece of something, whether it be time, a cookie, or a house (because wynaut?).
Also, multiple other series (like Sonic X for example) also touch on the theory of alternate universes & even time dilation.