Re: Entropy confusion, please help!


Andy Resnick wrote:
A uniform vapor has a high entropy because the macrostate (a volume of
vapor) corresponds to an untold number of microstates (specifying the
position and velocity of each particle in the vapor), not because it is
'hot'.

Andrew,

Thanks for your informative response!

At the root of my confusion is the supposed "running down" of the
post-inflationary extremely uniform "energy vapor" (at least that is
what I understand from reading about various interpretations of current
CMB measurements)... If this state of affairs represented "high
entropy," would not the current state of the Universe have even higher
entropy? That is, being more disordered... Galaxies, to my eyes, look
pretty well ordered, if not uniformly distributed (which, again to my
thinking, they ought to be, given the extreme uniformity of the
"starting point")...

Still confused...

Uno

.