So can I ask how you are defining "world split" because I think you really are actually dividing the universe which leads to all sorts of issues not least of that you break the conservation laws.
I intensely dislike the idea of the universe splitting; but who am I to argue with the experts?
http://physics.about.com/od/quantumphysics/f/manyworldsinterpretation.htm“In this interpretation, every time a "random" event takes place, the universe splits between the various options available. Each separate version of the universe contains a different outcome of that event. Instead of one continuous timeline, the universe under the many worlds interpretation looks more like a series of branches splitting off of a tree limb.”
Does the fact that I was trying to make sense of someone else’s claim that “the universe splits between the various options”, rather than actually claiming that I think it does that, bring the discussion to an end?