On 8/17/2018 7:37 AM, Bruno Marchal wrote:
Of course, but that does not justify the idea that all branches
pre-exist.
But that is not exactly what I am saying. I am saying that some
superposition can be interpreted as different superposition. When
Alice choose her spin direction, she will chose a partition of the
multiverse, which is a sort of multi-multiverse. Without this, not
only we have FTL, but we get super-determinism. Alice is no more
choosing anything.
But already with no-collapse multiverse you have super determinism.
The only question is where different branches of possibility diverge.
Alice's choosing is, in the usual case, a deterministic choice, not one
that produces or identifies her with a different branch than the one
before her choice. It just muddles the argument to introduce the
measurement directions as different possibilities.
Brent
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