History Channel's show on the multiverse presented as "each time you make a decision, it creates a parallel universe ... " supposedly one for each possible outcome of the decision point. But I find it hard to believe the entire universe and multiples thereof really revolve around me. Or do splits happen from non-living decision points as well, like whether an asteroid happened to be close enough to be drawn in by gravity to hit a planet or not. I'd be interested to hear views or ideas.
This is called "The many-worlds_interpretation" It is always important to understand why theories are proposed. This one is subtle. Read the first paragraph in the link above, "The many-worlds interpretation is an interpretation of quantum mechanics that asserts the objective reality of the universal wavefunction and denies the actuality of wavefunction collapse. " Wavefunction collapse is the key in this sentence. It is important to understand that wavefunction collapse is itself a theoretical concept, having to do with, how do we get a classical world from a quatum mechanical world? Once you understand that sentence and bring it into focus from a scientific point of view, the suggestion of the MWI makes more sense. My opinion is that it is silly. That doesn't mean I think that the Multiverse is silly though. That is almost as hard for most people to swallow as the MWI, but I see no way out of the fine-tuning needed to create a universe that appears perfect in every way for life as we know it. The videos above go into it some if you haven't looked at them. In these videos that I continue to post, it is essentially asking this one question: Why is the universe so perfect for life? Almost all directions point that this universe is not unique. Each theory posits a different way to get "infinite universes"