On Sun, Nov 26, 2017 at 6:36 PM, <[email protected]> wrote:
> > > Feynman, who wasn't an MWI enthusiast > [...] > *"Political scientist" L David Raub reports a poll of 72 of the "leading cosmologists and other quantum field theorists" about the "Many-Worlds Interpretation" [...] Amongst the "Yes, I think MWI is true" crowd listed are Stephen Hawking and Nobel Laureates Murray Gell-Mann and Richard Feynman. Gell-Mann and Hawking recorded reservations with the name "many-worlds", but not with the theory's content. Nobel Laureate Steven Weinberg is also mentioned as a many-worlder" * https://www.hedweb.com/everett/everett.htm#believes But to be fair, Feynman wasn't exactly a enthusiast, I think he believed Many Worlds was the the least bad quantum interpretation but he wasn't really a fan of philosophy and had sympathy for the "shut up and calculate" quantum interpretation. > > > > no human observer is necessary to perform a quantum experiment. > Hey you don't have to convince me that an observer is not needed for something to exist in one definite state, but then I'm not a fan of Copenhagen. > > > If the detector is designed for a which-way measurement, the interference > is destroyed. > If the which way information is retained the interference pattern is destroyed, if the information is destroyed then you have interference, and that is what Many Worlds predicts. > >> >> The very heart the Copenhagen interpretation is that things do not have >> definite properties >> before >> they are measured, >> > > > > Wrong. > * "According to the Copenhagen interpretation, physical systems generally do not have definite properties prior to being measured"* https://en.wikipedia.org/wiki/Copenhagen_interpretation > > > Your claim only applies in a special situation of quantum experiments > which manifest interference effects. > I agree, interference effects only manifest in special circumstances, when a world splits become different and then the two evolve in such a way that the two become identical again and so merge back together, and that is only likely to happen if the difference between the two worlds is very small; that's why we don't see weird quantum stuff in our macro world, like in the Earth Moon system. John K Clark > -- 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 post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/d/optout.
