So I'm stewing over two questions as a result of the scenes at the end of the Blake Crouch novel Dark Matter. 1. When there is a "decision point", the proverbial fork in the road, is a new universe created, at that instant, out of nothing, or did the alternate universe exist all along and was simply indistinguishable until the particular fork in the road differentiated them? 1a. Okay, 3 questions: If it's the former and not the latter, don't we have a problem with creating matter out of nothing? 2. When there is a "decision point", is probability a factor, or is the mere possibility of an outcome enough to create an instance of that outcome? Let's say you're at an intersection and the odds of Outcome-A are twice that of Outcome-B. Does that mean that Outcome-A must have happened twice for Outcome-B to have happened once? Do we now have 3 alternate universes instead of 2, but where two of them are indistinguishable (at least until another decision point causes them to diverge)? Finally, I have a basic problem with the multiverse theory that has nothing to do with this particular novel, inasmuch as it proposes infinite alternate universes. If each "decision point" spawns a universe for each possible outcome, that would still be a finite number. While the eventual number of parallel universes would be so vast as to be uncountable, it could never be infinite. As an example, there couldn't be an alternate universe where I'm sitting here typing this, and everything is precisely the same except that I'm wearing a Taylor Swift tee-shirt, because if I were wearing a Taylor Swift tee-shirt, something else would also have to be different.