On 6/28/2018 8:46 AM, Bruno Marchal wrote:
Also, if another sort of a multiverse exists besides the quantum multiverse,
then in any physics experiment you're going to measure the totality of all the
effects of all multiverses in which you have exact copies. The effects of these
other multiverses e.g. as provided by inflation theory cannot necessarily be
dismissed as trivial (e.g. by saying that it leads to uncertainty of the
quantum state, the effects of which can be absorbed in a density matrix), as
counting states with the restriction that the same observer is present per my
argument in the previous posting, also leads to quantum-like laws.
Eventually, that can be related to the importance of not assuming any
infinities. With arithmetic, we elude the non standard models of arithmetic,
because the laws of addition and multiplication in such non standard model can
be proved to be non computable. But with any theories which assumes some
infinity, we can no more fight against the white rabbits. No Infinities is not
an option, as I thought sometimes ago, but is made obligatory. Judson Webb
insight was correct: Mechanism is a finitism.
How is that consistent with your idea of the UD producing infinitely
many threads of computation through the same state?
Brent
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