Warp <war### [at] tagpovrayorg> wrote:
>   If we assume the mass of the black hole would decrease, then the EH would
> recess. The photons which were emitted extremely close to the EH will get
> a speedup when the EH recesses. Basically the "point of entry" will stop
> being *at* the EH and becomes being *above* it. Thus all the photons will
> reach the external observer in finite time. The external observer will
> end up actually "seeing" the falling object cross the EH.

I guess it will rather be that as the black hole evaporates, the EH will shrink
as you said, but the "victim" will still seem to "stick" to it.

So from an outside observer's point of view, the moment the "victim" reaches the
singularity will be when the EH has "boiled down" to the singularity, and will
be identical with it.


It's still an interesting question though how the EH can ever boil down to
singularity if it still has the mass of a spacecraft. And all the other stuff
still sticking to its EH.

Which leads me to believe that in fact, the very moment you reach the EH of a
black hole you just simply evaporate.

Which, again, leads me to believe that there is actually no mass at all *inside*
a black hole: All that makes up the gravity well is the stuff busy falling into
it. From an outside observer unable to ever reach the EH - except due to
quantum fluctuations. Which will cause them to reach it at last and instantly
evaporate.


Duh. That's sounds simple enough to actually be true!


Now *why* would you evaporate if you reached the EH? Maybe because you would zip
off straight towards the singularity because all those evil vectors head straigt
there - but you can't stay there because, after all, it's a singularity, a "mu"
location where nothing can be - not even you, although it looks like you just
fell into there. But then again, *are* you really where you seem to be?

Enter QM: If you *can't* be there where you most likely *are*, then you must be
someplace where it's quite *unlikely* (though not perfectly impossible) that
you're there... like, say, not in the grasp of That Nasty Big Black Hole after
all... like, say, Hawaii... Alas! If only you hadn't opted for that job as a
space cadet... But... hey, did you, after all? It's a bit unlikely that you
did, given the fact that it made you end up somewhere you cannot possibly be...
so maybe you stayed home after all - or at least one of your electrons did...
Whoops! Off here goes one of your elementary particles... Or you could have
died in that explosion at Tau Alpha Ceti 6, and be part of that fascinating
dust cloud out there... Whoops! Here goes another one...

Hey, I like this idea...


Boys, I don't want to brag, but could it be that I'm just hatching an important
idea here...?? It looks to me like things are falling into place this way:

- It would explain what the singularity in the GR equations actually means: A
"forbidden point" in spacetime. A place that is not. GR being unable to give
proper results for this point because the only proper result is "mu". In fact,
it would mean that giving nonsense results for such a point would actually be a
*prerequisite* for a good theory, unless you're using it for Zen archery target
practice. Fascinating!

- It would explain where Hawking radiation actually comes from. And why it
doesn't lose information: It's still there. It has stayed home at Hawaii, got
blown up at Alpha Ceti 6, whatever - it never fell into the hole in the first
place.

Note that there's no contradiction there: All of your particles that ever
interacted with anything still "outside" on your way to the black hole
(including particles that interacted with particles that interacted with
particles that interacted with anything "outside") did pass on their
information at the very moment they interacted, so no loss happend there; for
all the particles that did not interact, QM says Schroedinger's Cat never fell
into the black hole in the first place - because now that the Black Hole Box
has evaporated, you find that you never even managed to trap it there in the
first place. It must have slipped out quietly while you were still fiddling
with the lock. Darn!

So what are black holes? Looks like a reroll in a random generator trying to
obtain a certain random distribution... or some "game over - reload saved
game?" popups for individual particles :P.

- It would explain the fermion paradoxon: If there's no fermion at the
singularity in the first place, there's no need to worry about a second fermion
trying to occupy the same spot.

<wild_guess>
Then again, maybe the fermion mechanism is actually the key to understanding the
singularity from a QM point of view: If energy densities are high enough, like
in a collapsing superstar, maybe this is sufficient to slam two fermions
together into the same quantum state, creating a particle that doesn't allow
*any* other particle to share the same spot...
</wild_guess>

However, I'd rather guess that the singularity is a forbidden point because it
is a "border" of spacetime, in a sense, and that this border is not included in
spacetime.


>   After all, how would the external observer actually see the black hole
> getting smaller?

Smaller EH of course.

>
> > looks like even after he's past the event horizon, which would imply the
> > universe hasn't ended for *him*?
>
>   I don't think that's possible. When he is exactly at the EH, the entire
> EH engulfs the entire view on all sides. He doesn't see anything else
> than the EH. What he "sees" inside... I don't know.

"Mu" again.

As I pointed out previously, I see the EH as being identical to the singularity
- a single point in spacetime blown up to macroscopic dimensions.

Actually, stating that the singularity is something which is not, this also
means that the EH is something which is not. Spacetime ends an infinitesimal
distance away from it. You can't reach it - being there is impossible, and
impossible is less likely than the infinitesimally small probability of not
having steered too close to the black hole in the first place.

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