Interesting ideas. You might also be interested in this, which uses the expanding and cooling universe to perform infinite computations with finite energy:
https://en.m.wikipedia.org/wiki/Dyson%27s_eternal_intelligence Also, reversible computers can compute without energy expenditure. Jason On Thu, Jul 14, 2022, 11:25 AM John Clark <[email protected]> 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/CA%2BBCJUhidpgTpzhrDjVkL0Sz3psaXGZy0nrTO%2BEG7W8bLfh8AA%40mail.gmail.com.
