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.

I don't believe in MV theory.
If it was true, my defecation would be creating multiverses.