On 7 November 2013 11:31, meekerdb <meeke...@verizon.net> wrote:
> On 11/6/2013 2:09 PM, LizR wrote:
>
>> That's similar to my pet theory for explaining the Beckenstein bound -
>> information capacity only goes up as volume in the multiverse.
>>
>
> The volume of the multiverse is generally thought to be infinite. Even the
> volume of our universe may be infinite. If you want to apply the
> Beckenstein bound, consider the observable universe since its boundary
> forms an horizon relative to us.
>
> Yes. The BB has to be applied to a finite volume. Indeed it seems
ridiculous, intuitively - the volume of the universe is quite likely
infinite, so we can apply the BB on larger and larger scales for as long as
we like (in theory) - and if we do so, we will presumably find that we
reach a point where the information content we derive for the interior of
that volume is insufficient to account for its contents. (Or does something
always prevent that happening in practice - is this the point at which we
reach a "cosmic horizon" ? Does the BB have an "information protection
conjecture" that makes the universe safe for information theoreticians?)

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