On Sat, Feb 8, 2025 at 11:08 PM John Clark <[email protected]> wrote:
> On Fri, Feb 7, 2025 at 5:28 PM Brent Meeker <[email protected]> wrote: > > *> Thus arbitrarily imposing a frequentist model on the world by imagining >> an ensemble of universes. * >> > > *Hugh Everett wasn't imagining, he was just taking seriously a prediction > that Schrodinger's Equation makes; it's true that particular prediction > can't be tested, but many other predictions that the equation makes can be > and they've all passed with flying colors;* > And all other interpretations of QM have passed exactly the same tests with equally flying colours. Everett does not have a monopoly on truth. Bruce * therefore I see no reason why your default condition should be to assume > that other prediction is pure nonsense, especially given the fact that it > can explain why the quantum world is so weird.* > > > >> *> This is really unecessary. It's just a sop to intuition.* >> > > *I don't know what you mean by that. If you can find a logical reason to > justify your intuition that is not a "sop", it is a profound revelation. * > > > > Why not accept that probabilities need not be frequencies? >> > > *I do because you can't use that approach to assess the probability of a > unique event, such as the probability that X will win the next election. > The 4 meanings of the word "probability" that I mentioned, the ratio of > favorable outcomes to all outcomes, the long run frequency of an event > occurring, a degree of belief which can be updated when more information > becomes available, and the square of the absolute value of a quantum wave > function, are all valid and do not contradict each other; which one you use > depends on the circumstances. However if you don't believe in Many Worlds > then, although you know from experiment it works, it's very hard to > understand why the square of the absolute value of a quantum wave function > works and how it can **have any sort of relationship with the three other > meanings of the word "probability".* > -- You received this message because you are subscribed to the Google Groups "Everything List" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion visit https://groups.google.com/d/msgid/everything-list/CAFxXSLTSjdtj7%2B4L8M%3DfhCYO%3D7ftjtVoh-yJALcsgqyKVvLN2w%40mail.gmail.com.
