[FoRK] Roundup of recent interesting things...

silky michaelslists at gmail.com
Sat Mar 27 18:38:52 PDT 2010


On Sun, Mar 28, 2010 at 10:16 AM, Jeremy Apthorp <nornagon at gmail.com> wrote:
> On 28 March 2010 01:15, Jeff Bone <jbone at place.org> wrote:
> > And for the win, I claim the conjectural scoop...  Gravity epiphenomenal, not fundamental...
> >
> > Deriving gravity from quantum information:
> >
> >  http://www.technologyreview.com/blog/arxiv/24975/?ref=rss
>
> Interesting. Note that if the universe is 'built' from information as
> the above article hints at, and we see that the laws of thermodynamics
> and entropy allow for e.g. the erasure of that information, then we
> are lead to believe that:
>
> 1. there is a finite amount of information in the universe, and thus
> 2. spacetime is discrete, not continuous.
>
> If spacetime were continuous, it would require an infinite amount of
> information to represent the position of a particle.

I'm sure you know more about it than me, but I don't see that this
follows (the theories are based on the Holographic Principle, and from
my 5 minute look into it, it doesn't seem to require non-infinite
information).


> j

-- 
silky

  http://www.programmingbranch.com/



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