Every action, you and everyone/thing has done has  made a split where two universes are created one where It did that thing, and one where it didn't. 

Now image every little thing everyone/thing does in a day, and go back to the beginning of time. 

Dear Jesus how many universes did I make just typing this post, and thread up.  

There going to be a  ton of universes where I didn't create this thread, and other where it's slightly different, to the whole thing is rewritten.

My mind hurts a lot now.