On Tue, Mar 11, 2025 at 2:11 PM Russell Standish <[email protected]> wrote:
> On Tue, Mar 11, 2025 at 12:29:57PM +1100, Bruce Kellett wrote: > > > > It does not prevent a probabilistic interpretation, but it does not give > one > > either. You have assumed statistical physics, which introduces a large > dose of > > probability theory. That does not come from the deterministic theory -- > you > > have to introduce it from elsewhere. > > > > So with quantum mechanics. The wave function, being deterministic, does > not > > have a probabilistic interpretation until you introduce one from > elsewhere. > > I'm well aware of that. I guess you're disputing the "MWI is nothing > but the Schroedinger equation" statement that John Clark sometimes > makes. > Yes. At least JC is consistent with this, as are people like Carroll, Deutsch and Wallace. I find it harder to deal with people, like Quentin, who are basically dishonest; who claim to be working with Everettian quantum mechanics, but continually introduce ideas from elsewhere -- ideas that have no basis in unitary quantum mechanics. As soon as you have self-location indeterminancy (or first person > indeterminancy, I think we called it here), probabilities march right > on in. And as soon as you have computationalism (and I would argue > functionalism), self-location indeterminancy marches right on in. That > was the point of Bruno Marchal's Universal Dovetailer Argument. > But that has never made any realistic connection with either quantum mechanics or with observational results. So the question is how would you do the MWI _without_ > probabilities. David Deutsch is working on a possible solution to > that, although I'm a little sceptical he can make it work. > I think your scepticism is not misplaced. Deutsch has a tendency to go off the rails on occasion. Bruce -- 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/CAFxXSLTMga-UNDPg%2BEzKorrewxgOtzk%2BvHEeVUX097G0sWTg1w%40mail.gmail.com.
