> On 6 Jun 2019, at 02:47, Lawrence Crowell <[email protected]> > wrote: > > On Wednesday, June 5, 2019 at 9:30:31 AM UTC-5, Bruno Marchal wrote: > >> On 4 Jun 2019, at 17:42, John Clark <[email protected] <javascript:>> wrote: >> >> On Tue, Jun 4, 2019 at 10:55 AM Bruno Marchal <[email protected] >> <javascript:>> wrote: >> >> >> you said atheism is just a slight variation of Christianity and believe >> >> my saying Aristotle was the worst physicist who ever lived means I have >> >> embraced Aristotle's ideas as an act of faith. >> >> > The physics is wrong, which is nice as it means that Aristotle was clear >> > enough to be shown wrong. >> >> Aristotelian physics could have been easily disproven even with 2500 year >> old technology, and yet for 2000 years any suggestion that it might not be >> flawless was met with derision if not violence. > > That is not Aristotle fault, but the fault of abandoning the most fundamental > science to “politics”. With the Renaissance, only a part of science has been > freed from “authority”. > > > > >> Physics would be more advanced today if Aristotle had never been born. > > That is hard to refute, or to prove. > > > >> >> > Criticising the scientifically-minded theology of the greek neoplatonist >> > *is* so typical among christians. You really defend them all the time, DE >> > FACTO. >> >> The new total is now (6.02*10^23) +2. >> >> And I've already told you how I figure out which book is most likely to >> clear up my confusion of how the world works but you *STILL* haven't said >> how you do it. >> >> >> Immortality means never having a last thought and the only way I know how >> >> to do that is with infinity. >> >> >That would happen in circular model of time, like in Gödel GR universe. >> >> But the Gödel GR universe is not the one I live in, my universe does not >> rotate. > > How do you know that? We don’t have yet a picture of what is beyond the > observable universe, nor do we have even a coherent theory of the physical > universe. We have to jewels: QM and GR, but they are insistent when taken > together, and both would contradict Mechanism (the hypothesis in cognitive > science) if taken as the fundamental theory. > > Bruno > > It is unlikely, or at least if the universe rotates is is very small. A > rotation frame drags spacetime, and for the Gödel universe that rotates as a > stationary set of point then for points removed from the spatial center this > frame dragging becomes enormous. There is even an event horizon generated. > Also even regions inside the horizon scale have geodesics that will time > loop, where in fact the only geodesic that will not time loop is one passing > through the center and normal to the spatial surface. This is problematic for > the spatial surface at any time can't contain unique Cauchy data.
To be franc, I have not enough expertise in GR to measure the impact on this. I can imagine slowing down the rotation to make the drag as small as possible, but that is only a guess. Then, I am not Aristotelian: I don’t believe in what I see (take this with some grain of salt). Bruno “De mémoire de rose, je n’ai jamais vu mourrir un jardinier” (Fontenelle). > > LC > > <A-map-of-the-future-lightcones-of-the-Goedel-universe.png> > > > > -- > 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/c6e796bb-5d97-401a-a977-696dd759d8b7%40googlegroups.com > > <https://groups.google.com/d/msgid/everything-list/c6e796bb-5d97-401a-a977-696dd759d8b7%40googlegroups.com?utm_medium=email&utm_source=footer>. > <A-map-of-the-future-lightcones-of-the-Goedel-universe.png> -- 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/C731A47E-4B2D-49EE-8089-B96665654AD7%40ulb.ac.be.
