On 12/19/2012 8:34 AM, Roger Clough wrote:
Hi meekerdb and Stephen,
If information is stored in quantum form,
I can't see why the number of particles
in the universe can be a limiting fsactor.
Information has to be instantiated in matter (unless you're a Platonist like Bruno). No
particles, no excited field modes -> no information.
Also there are ways of storing information
holographically, so size gets a bit ambiguous.
The holographic principle says that the information that can be instantiated in spherical
must be less than the area of the bounding surface in Planck units. So there's a definite
bound. If we looks at the average information density in the universe (which is dominated
by low energy photons from the CMB) and ask at what radius does the spherical volume times
the density equal the holographic limit for that volume based on the surface area we find
it is on the order of the Hubble radius, i.e. the radius at which things are receding at
light speed. This suggests the expansion rate of the universe and and gravity are
entropic phenomena.
Brent
[Roger Clough], [[email protected]] <mailto:[email protected]]>
12/19/2012
"Forever is a long time, especially near the end." -Woody Allen
----- Receiving the following content -----
*From:* meekerdb <mailto:[email protected]>
*Receiver:* everything-list <mailto:[email protected]>
*Time:* 2012-12-18, 16:44:29
*Subject:* Re: the only truth we can understand is a man-made object
On 12/18/2012 1:12 PM, Stephen P. King wrote:
We have many entities that are available to agree that 2+2=4 (for all
sizes of
2 and 4 that we can find), 2^90 entities at least! Every particle that
exist in our
universe that can hold a bit of data and all possible combinations of them
that
agree on some "laws of physics".
I've only been able to communicate with a few of what I call 'human
beings'. All
those particle are inferences that I and the other 'human beings' have put
in our
model of the world to explain the 'facts' on which we have intersubjectively
agreed. In our model, the particles don't have opinions. In fact the
whole idea of
particle is something which has very few properties and hence is completely
understandable (wouldn't be much point in making a theory out of pieces you
don't
understand).
Brent
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