> On 4 Feb 2021, at 01:50, 'Brent Meeker' via Everything List > <[email protected]> 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] >>> <applewebdata://512728BB-88AF-4342-87BA-7EF726179C57> 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.
Right. But the differentiation go at the speed of light, from the spin of the particle to Deutscg brain(s), then to his car(s), etc. One millenium later, only a part of the Milky-Way has differentiated. Instantaneous splitting would bring FTL in the picture, which it clearly cannot do, given that the superposition spread through interaction, and that is indeed coherent with the idea that consciousness has no causal role on this, except for the private feeling of being this “David Deutsch” or the “other” one. Bruno > > Brent > >> >>> >>> 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] >>> <applewebdata://512728BB-88AF-4342-87BA-7EF726179C57>. >>> 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] >> <mailto:[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] > <mailto:[email protected]>. > To view this discussion on the web visit > https://groups.google.com/d/msgid/everything-list/3b7580e2-66ff-817f-0b97-13dbbddae994%40verizon.net > > <https://groups.google.com/d/msgid/everything-list/3b7580e2-66ff-817f-0b97-13dbbddae994%40verizon.net?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/DBDF0D42-0169-4DA3-99B1-376FF3A6D26E%40ulb.ac.be.
