Le mer. 16 oct. 2024, 15:05, Alan Grayson <[email protected]> a écrit :
> On Wednesday, October 16, 2024 at 5:17:25 AM UTC-6 John Clark wrote: > > On Tue, Oct 15, 2024 at 10:37 AM Alan Grayson <[email protected]> wrote: > > *>> start the experiment with Bob and Alice synchronizing their clocks, > shaking hands and then both of them accelerating by the same amount but in > opposite directions for X amount of time as read by their own clocks. > After that Alice would see that Bob's clock was running slow, and Bob would > see that Alice's clock was running slow, this may seem odd but effect > never comes before cause unless messages could be sent instantaneously.* > > > > *> This is not how the apparent paradox is resolved.* > > > *It's resolved because although both see the other's clock as running > slower than their own clock, and they can't agree what "simultaneous" > means, both of them agree that cause always comes before effect, neither of > them see time running backwards, and neither of them can returned to the > spot where they started their journey before they started it. The situation > is still odd because watching a friend go close to the speed of light is > radically different from our everyday experience, but it produces no > paradoxes. * > > *By the way, I don't think it will happen but if a way to send messages > instantaneously was ever discovered that would be extremely strong evidence > that Many Worlds must be correct because, as I explained before, it's the > only way I can think of of making that particular logical paradox go away, > if anybody can think of another way I'd love to hear it. However if > somebody proved that instantaneous communication is physically impossible > (I have no idea how you'd do that but never mind) that would not indicate > Many Worlds is wrong because, although it doesn't need non-locality to > work, it isn't destroyed by it either. As far as locality is concerned Many > Worlds can take it or leave it. By contrast pilot wave theory needs > non-locality or it won't work. * > > * > If it were, then SR would no longer be local and the future could > effect the past, violating causality.* > > > *Special Relativity doesn't violate causality because it says nothing can > travel faster than light do to the fact that the faster you go the larger > your effective mass becomes, so it would take an infinite amount of energy > to reach the speed of light, and that much energy is simply not available > in our universe. * > > *> So why do you insist that messages can be sent instantaneously?* > > > *What the hell?! * > > > *You're responding to a post I deleted. AG * > It's a mailing list, you can't delete your message once sent to the list, they're delivered to all email addresses subscribed to the list... think before posting, there are no deletes. > * John K Clark See what's on my new list at Extropolis > <https://groups.google.com/g/extropolis>* > hwt > > -- > 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/3d54dad1-0a7f-4acc-9a8d-25e13e7aa934n%40googlegroups.com > <https://groups.google.com/d/msgid/everything-list/3d54dad1-0a7f-4acc-9a8d-25e13e7aa934n%40googlegroups.com?utm_medium=email&utm_source=footer> > . > -- 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/CAMW2kArTtEJnugCnk_B6osQ8i%2BfYUAs19mA3Q6NL%2BYSL1ydvSA%40mail.gmail.com.
