On Monday, October 14, 2024 at 10:04:11 AM UTC-6 John Clark wrote:
On Mon, Oct 14, 2024 at 10:55 AM Alan Grayson <[email protected]> wrote: *> Why not accept that physics is local? AG * *I have no problem assuming faster than light messaging is impossible and thus physics is local, **and that's one reason why I like Many Worlds, it's local, and one reason I don't like pilot wave theory, it's not. * > * if Bob is traveling away from Alice, don't their clocks cease to be synchronized, or are you already assuming that? AG* *Yes certainly, Bobs clock is running only half as fast as Alice's clock, but that non-synchronization causes no logical contradictions if instantaneous communication is impossible. But if it is possible then that opens up a great big can of worms that as far as I can see can have only one solution. * * > I don't see how MW solves this problem. * *Just before a teenage William Shakespeare finds a copy of a book entitled "The Complete Works Of William Shakespeare" the multiverse branches, in one branch Shakespeare never finds the book and he composes all the plays and poems by himself, and in the other branch he just copies down what he sees in the book, and the information needed to do that came from another Shakespeare that lived in another world. * *> If their clocks aren't synchronized as Bob moves away from Alive, Bob cannot conclude that Alice received his reply an hour before she sent the question.* *Bob knows** Alice would send her question when the hands on her clock indicated two hours, but when Bob received the question and he sent his answer his clock only indicated one hour. Because both messages were instantaneous when Bob uses his telescope to look at the hands on Alice's clock they indicate one hour, and when he looks at her incoming message screen it says "the answer to your question how much is 11+3 is 14" which was one hour before Alice even thought of the question. * *Since the clocks aren't synchronized, when Bob looks at Alice's clock, it reads 2 hours, not 1 hour. So I don't see any contradiction to be resolved. Also, since SR is a local theory, and you can live with a local theory, why apply MW? You don't need it. Moreover, assuming there is a contradiction due to instantaneous propagation of information, I don't how MW solves this problem. The only problem I see, is that Bell experiments suggest the universe is non-local, and/or that QM is non-local. Do you agree? AG*sd -- 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/d48490ff-02a4-429f-b1e7-453c95c857cbn%40googlegroups.com.
