From: Spudboy100@aol.com
Date: Fri Jul 19 2002 - 06:35:38 MDT
Anders Sandberg said:
<<On average, they have no impact beside the noise: that entropy
increases is just a consequence of that the universe is on
average moving from a less likely state to a more likely state>>
I believe the definition of entropy still holds that the universe tends
toward more disorganization, and a net energy loss or dispersion. I realize
you will say "Yes, a more likely state!" I am not sure that we can uniformly
conclude that entropy or extropy is a "more likely state", because even with
mathematics, it becomes subjective. I could claim that a steady-state
universe was more likely, and you could readily claim that a Guth/Linde
Inflation is thus, more likely. Flip a coin or toss a card in a hat.
<<As an example, imagine a gas with rho molecules/m^3 and a box
of length L. There will be around rho L^3 molecules in it
randomly bouncing around. The probability that all will be on
the left side (I would like to say more than 51%, but the
calculations get messy; they are left as an exercise for the
student :-) is P=2^-(rho L^3). So if we assume rho to be
10^24/m^3, the probability for L=1 m is 2^-10^24, or
essentially zero.>>
The BOX is the universe, and we need to realize that the shape of the box
will contribute to the motion of particles within it. One concern may be that
the box is not a box at all, but hypersphere; and that hypersphere may be
rotating. This sphere that is construed to exist with extra-physical
dimensions, and may be rotational may churn up some curious phenomena indeed.
<<So we ought to see brief thermodynamic fluctuations on this scale
where entropy is not conserved, even if it is on the larger
scale.
These fluctuations can be exploited by nanomachines, but only
locally. See Tom Schneider's work at www.lecb.ncifcrf.gov/~toms >>
Indeed and thanks for the link!
-Mitch
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