It is similar, and it may simply be a different way of thinking about it. I would still contend that umtilately everything is determined.
We do not disaggre in principle, but I would say that in the original state there was a single universe A, and B and C are children of A. Yes, they were A, but that was a single thing; it was not ABC. When B and C came ito existence their histories were the history of A up to the decision point.This is quite wrong. The entire POINT of the wavefunction is that, mathematically, every option is contained within the formula. When we observe it, ie when two quantum states interact, we experience only one of those possibilities. So, to correct your explanation, there is point AB in which universe A and B co-exist in a single universe. There is decision point C where there is decoherence C, and, after that decoherence, we get a separated world for both A and B. Obviously there will always be before-C in which A and B are AB, but once the decision is made, A and B are mutually inaccessible. You seem to be assuming that "not making decision C" means that new-world B is created, but this is incorrect. "Not making decision C" would actually be one of the possibilities of decision C. So we can rephrase this as having point ABC in which A is making decision with option 1, B is making decision with option 2, and C is not making the decision between option 1 and 2. The act of not making that decision is still a decision, and would split the ABC point into World A, World B, and World C.



Reply With Quote