On Thursday, July 14, 2022 at 4:28:48 PM UTC-5 [email protected] wrote: > On Thu, Jul 14, 2022 at 3:49 PM Brent Meeker <[email protected]> wrote: > > * > At some point the amount of localized energy will form a black hole.* >> > > Maybe, probably, but I can't help but think that the formula we use today > to determine the point where a black hole forms from too much information > might only be an approximation because if the acceleration of the universe > is itself accelerating because Dark Energy is getting stronger and we're > heading toward the Big Rip then in the deep future it's gonna be harder to > make a black hole than it is now. That's just my intuitive hunch, I could > be dead wrong. > > John K Clark See what's on my new list at Extropolis > <https://groups.google.com/g/extropolis> > ydd > > The extraction of energy from dark energy is possible. Given two galaxies a tether between them could serve as a way of generating energy. However, once the two galaxies separate so they have a mutual z > 1 there is no tether that can hold. It is for the same reason one could not lower a camera on a tether into a black hole and then pull it out. As the number of galaxies in the cosmic O-region bounded by the horizon is finite it is then not possible to extract an infinite amount of energy.
LC > > > > > > > >> >> Brent >> >> On 7/14/2022 8:24 AM, John Clark wrote: >> >> The Bekenstein bound says if a volume of space has access to a finite >> amount of energy then the amount of information necessary to describe it is >> also finite, and that implies Bremermann's limit which says there is a >> maximum rate of information that can be processed in that volume, and it >> works out to be c^2/h= 1.4*10^50 bits per second per kilogram of >> mass/energy. However I think it should be possible, at least in theory, to >> extract work out of the expanding universe (see next paragraph), and if >> the expansion of the universe is accelerating then it seems to me the >> amount of energy you could have access to in that volume of space could >> potentially be infinite, not finite. >> >> Suppose you had 2 spools of string coiled in opposite directions >> connected by an axle and you extended the 2 strings to cosmological >> distances 180 degrees apart from each other. As long as the Dark Energy >> force between the atoms in the string that were trying to force them apart >> was not stronger than the attractive electromagnetic force holding the >> atoms of the string together the string would not expand as the universe >> expanded, so there would be a tension on the strings, so there would be >> torque on the spool, so the axle would rotate. The axle could be connected >> to an electric generator and you'd get useful work out of it. Of course >> you'd have to constantly add more mass-energy in the form of more string to >> keep it operating, but the amount of mass per unit length of string would >> remain constant, however because the universe is accelerating the amount of >> energy per unit length of string you'd get out of it would not remain >> constant but would increase asymptotically to infinity. If the theories >> about the Big Rip turn out to be true and the acceleration of the universe >> is itself accelerating then it should be even easier to extract infinite >> energy out of the universe, provided we take care to continually shorten >> the string to keep it from breaking. So it would all just be a simple case >> of cosmological engineering. What could go wrong? >> >> And If you have infinite energy then you can perform an infinite number >> of calculations, so you could have an infinite number of thoughts, so you >> would have no last thought (the definition of death), so subjectively you >> would live forever. Of course the objective universe might have a different >> opinion on the matter and insist that everything including you had come to >> an end, but that hardly matters because subjectivity is far more important >> than objectivity; or at least it is in my opinion. >> John K Clark See what's on my new list at Extropolis >> <https://groups.google.com/g/extropolis> >> tif >> >> -- >> 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/CAJPayv1Ddbq4OK29NoYCEjFnjimT6CdK%2BiLoWcDF_34%3DVgBVvg%40mail.gmail.com >> >> <https://groups.google.com/d/msgid/everything-list/CAJPayv1Ddbq4OK29NoYCEjFnjimT6CdK%2BiLoWcDF_34%3DVgBVvg%40mail.gmail.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/cbf3ca3c-28ea-93c4-f619-3ec60643b557%40gmail.com >> >> <https://groups.google.com/d/msgid/everything-list/cbf3ca3c-28ea-93c4-f619-3ec60643b557%40gmail.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/ad18cde4-663e-4fe1-8304-5191f7e8155bn%40googlegroups.com.
