On 11/13/2024 3:25 AM, John Clark wrote:
On Tue, Nov 12, 2024 at 9:13 PM Brent Meeker <[email protected]>
wrote:
>///I'd heard that the //*many* of "Many Worlds" referred to the
numerosity of possible *measurement* results. Is that not right?/
*Yes that would be a correct statement because, as I said before,
every measurement is a change but not every change is a measurement.
In one world the needle on your voltmeter is pointing to 3 and you
observe it pointing to 3, and in another world the needle on your
voltmeter is pointing to 4 and you observe it pointing to 4. And you
are an intelligent agent, perhaps even a conscious one, therefore you
are capable of making a measurement. *
*I've noticed that you have not mentioned what your favorite quantum
interpretation is, nor has Bruce Kellett, but if I were to guess I
would say both of you are fans of the Shut Up And Calculate (a.k.a.
Copenhagen) quantum interpretation. Am I correct? *
No. First, "Shut up and calculate" is a caricature of the "Copenhagen"
interpretation which was never even well defined. The Neo-Copenhagen
interpretation which says decoherence somehow selects which probability
is realized seems a viable possibility that needs more research to fill out.
Second, Bruce can speak for him self, but I see short comings in all the
interpretations. Maybe least in the epistemic interpretation, although
the PBR theorem purports to show it's inconsistent with standard QM.
Anyway we'd like our theories to represent objective reality, not just
ideas about it.
There's also superdeterminism and retro-causality.
It bothers me to see serious people become partisan advocates for
scientific positions; sweeping the problems of their faith under the rug
and never mentioning the alternatives.
Brent
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