Re: maximum entropy and the seeking of lowest PE

[Leigh Palmer <palmer@sfu.ca>]

> I have to nitpick here,
>
> > Every system has an ultimate thermodynamic fate as a
> > black hole, even if the only way to get there is via QM tunneling.
>
> Case I: no QM allowed; but GR is allowed (i.e. black holes are allowed)
>
> If the Universe consisted of the "spherical" Sun and the "spherical uniform
> density" earth only, orbiting at roughly the current earth-sun density.  The
> ultimate fate is the earth orbiting the sun and is not a black hole

The angular momentum of the universe I take to be zero. In an earlier
posting I alluded to preserving the dynamical integrals. I've found
since that is not necessary in the case of the universe. Hypothetical
universes may not end as black holes; my hypothetical universe does!

> Case II:  QM allowed
>
> Let's say we finally have reached the ultimate state of a black hole  (I'm
> not agreeing that this has to happen; I'm just examining that particular
> case).  Then Hawking radiation affect would occur and the BH would evaporate
> away until we had some sort of bath of thermodynamically distributed
> elementary particles (for the most part) through out the Universe.

Black holes that big have zero vapor pressure. Hawking radiation
decreases with increasing mass.

Leigh