> On 30 May 2021, at 15:58, Lawrence Crowell <[email protected]> > wrote: > > The Boltzmann brain is only really a problem if the vacuum or spacetime of > the observable universe is "eternal." It probably is not, and in fact there > are reasons to suspect the vacuum of the universe has phantom energy. This > will force the universe into a big rip in 10 trillion years or so. This is > based on data with Hubble constant discrepancy. SN1 data with H = > 74km/sec-Mpc and CMB data with H = 68km/sec-Mpc, So the entire observable > universe may be ripped asunder down to and beyond quarks and leptons long > before a BB is statistically possible.
With Mechanism, there is no universe, and thus no Boltzman brain per se. But there are a sort of equivalent in arithmetic. Yet, they don’t play any role in the measure on all computational histories, although the details for proving this are rather tricky, and again involves the full theology of the universal machine (the provable and non provable (by a machine) consequence of Löb’s theorem for itself). Maybe I will send some summary, or a copy of some of my post on Facebook. Bruno > > LC > > On Monday, May 24, 2021 at 4:56:31 PM UTC-5 [email protected] wrote: > My view is that Big BB has a unique viewpoint that crystalizes its view as > the Prime Observer, and nudges things from arithmetic into reality. How this > hocus pocus occurs (cause and effect) is more than a bit above my > consciousness, the specific mechanics of this. With theorists like Sean > Carroll, the Boltzmann Brain is a troubling thing, because there would be a > plenitude of observers arising like virtual particles (photons) out of the > true vacuum flowing. I figured there may in all of these Brahma-cycles (not > an Indian motorbike), one grand observer. But, I could be wrong and I am not > looking for research funds to prove this theology wrong. Meanwhile here is an > ancient magazine article in Discover from years ago, celebrating the Bruno > explanation for reality. > https://www.discovermagazine.com/the-sciences/everything-in-the-universe-is-made-of-math-including-you > > <https://www.discovermagazine.com/the-sciences/everything-in-the-universe-is-made-of-math-including-you> > this includes all Boltzmann Brain, but they have no special role at all, > > > > > -- > 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/f679dc48-07ee-48d1-b306-0b0caedff774n%40googlegroups.com > > <https://groups.google.com/d/msgid/everything-list/f679dc48-07ee-48d1-b306-0b0caedff774n%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/775ABD06-6BDE-4F25-89CE-6D1E57A78C92%40ulb.ac.be.
