On 5 February 2014 06:24, meekerdb <[email protected]> wrote: > On 2/3/2014 11:49 PM, LizR wrote: > > I did wonder once if, since the holographic principle implies that the > information in a universe is proportional to the surface area of the Hubble > sphere, could it be that the information in the *multiverse* is > proportional to the volume of the Hubble sphere? > > (Although I guess the multiverse probably contains way more info than > that...) > > But presumably only because it can have much bigger Hubble spheres. For > a given size Hubble sphere, which is to say for a given epoch after the big > bang, there are only finitely many different possible Hubble spheres. >
Yes, I was only thinking of the subsection of the multiverse that includes Hubble spheres of equal size to ours. Also I was only thinking of the quantum multiverse, not the various alternatives. Given those constraints, I wonder if the information content would come out proportional to the volume? I guess if we assume space-time is quantised, then we can get a maximum number of bits (maybe one per Planck volume?) - I suppose the multiverse would then be every possible value that can occupy those volumes. So say 2^N, where N=number of Planck volumes, which is around 10^180 according to a quick calculation, and assuming I haven't slipped up, perish the thought. That doesn't seem right, though, because the Hubble sphere isn't occupied anything like randomly, and presumably most multiverse branches aren't either. I wonder how one could cut down the number? Or if one should? Any further thoughts on this? -- 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 post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/groups/opt_out.
