On Wednesday, February 3, 2021 at 5:50:26 PM UTC-7 Brent wrote:
> > > On 2/3/2021 3:49 PM, Alan Grayson wrote: > > > > On Wednesday, February 3, 2021 at 3:39:44 PM UTC-7 Brent wrote: > >> >> >> On 2/3/2021 12:25 PM, Alan Grayson wrote: >> >> >> >> On Wednesday, February 3, 2021 at 10:55:13 AM UTC-7 [email protected] >> wrote: >> >>> On Wed, Feb 3, 2021 at 10:05 AM Alan Grayson <[email protected]> >>> wrote: >>> >>> >>>> * > in GR universes evolve in time, but cannot instantaneously evolve >>>> faster than the SoL.* >>>> >>> >>> In 1905 Einstein discovered Special Relativity and said nothing >>> whatsoever could move faster than light, but by 1915 he had found >>> General Relativity and had to amend that to some extent, he still insisted >>> that matter or energy or information cannot move through space faster than >>> light, but he placed no speed limit on how fast space itself can expand. >>> >>> >>> *> In the MWI, worlds come into existence fully formed as it were, that >>>> is, replete with copies of observers. You want to have your cake and eat >>>> as >>>> well; that is, appealing to GR, but inconsistently instantaneously >>>> creating >>>> fully formed worlds, say like the one we live in. AG * >>>> >>> >>> MWI doesn't say if a new universe is created instantaneously >>> >> >> >> *IMO, it surely does! Deutsch makes a right turn in his car, and >> immediately another universe is created where a copy of Deutsch makes a >> left turn (and numerous other turns!). I see no way around this violation >> of GR. AG * >> >> >> You need to think of better examples. Something like Deutsch making a >> decision is with probability near 1.0 a purely classical event. If it has >> some quantum component in its causation it was probably weeks earlier and >> in concert with thousands of classical effects. >> >> Brent >> > > > *It's just a thought experiment which makes the necessary point. Assume > Deutsch can take alternate routes with the decision depending on whether he > measures spin UP or DN. Would this work? AG * > > > Sure. Or the signal light is controlled by a Geiger counter. It makes > the problem clearer and gets away from questions about consciousness. > > Brent > *Thanks. I'm interested in your opinion and possible analysis about whether the total gravitational energy of the universe is precisely ZERO. AG * > > >> >> or if the new creation only comes into existence at the speed of light; >>> it doesn't say because it does it need to, it works fine either way. MWI >>> Is agnostic about that. >>> >>> >>>> *> If your claim that the net energy of the universe is zero is >>>> associated with the universe as a whole, not for some part of it, then it >>>> must be speculative. No calculation can be done to establish it. Correct?* >>> >>> >>> Correct, that can only be established through observation and >>> experimentation. However if General Relativity is correct and if empty >>> space does contain residual vacuum energy (both those things can only be >>> determined through observation and experimentation but the evidence is >>> piling up that both are correct) then the net amount of energy in the >>> universe is indeed zero. >>> >>> 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 view this discussion on the web visit >> https://groups.google.com/d/msgid/everything-list/8f21824c-c1d7-4dd2-98ca-c78da0969e80n%40googlegroups.com >> >> <https://groups.google.com/d/msgid/everything-list/8f21824c-c1d7-4dd2-98ca-c78da0969e80n%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/a54ec42e-24e9-4f11-89be-4f3d48ba6998n%40googlegroups.com > > <https://groups.google.com/d/msgid/everything-list/a54ec42e-24e9-4f11-89be-4f3d48ba6998n%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/91b55d70-2caf-40cf-9ecd-c8ed8bf51011n%40googlegroups.com.
