On Saturday, September 7, 2019 at 9:25:59 AM UTC-5, Lawrence Crowell wrote: > > On Saturday, September 7, 2019 at 4:09:27 AM UTC-5, John Clark wrote: >> >> >> On Sat, Sep 7, 2019 'Brent Meeker' via Everything List < >> [email protected]> wrote: >> >> *>> Sean Carroll is on a nationwide speaking tour now evangelizing Many >>> Worlds. What is the predictive power of Many Worlds?* >>> >>> > None, unless someone can figure out how to derive Born's rule from >>> it...which I think is impossible. >>> >> >> Many Worlds predicts that the best any observer will be able to do is >> make probabilistic predictions, and Gleason's theorem says that in 3 >> spatial dimensions only the square of Schrodinger's wave (the Born rule), >> and not the cube or anything else, can yield a probability without >> inconsistencies. >> >> John K Clark >> > > Gleason's theorem is sort of a special case of Born rule for the case an > operator is the unit operator. There is an interesting chase after the Born > rule, and some people do think that certain quantum interpretations give > the added axiomatic "boost" necessary to prove that. I am agnostic about > those claims. If this does turn out to be the case I would give the best > bet to either MWI or QuBism. > > LC >
If the best bet is either MWI or QuBism then theoretical physics is indeed doomed. @philipthrift -- 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 on the web visit https://groups.google.com/d/msgid/everything-list/710c8709-0a08-454d-930c-8a4f7a04590a%40googlegroups.com.
