[ExI] First Picture of a Black Hole!

Tomaz Kristan protokol2020 at gmail.com
Thu Apr 11 15:54:01 UTC 2019

>  the density of M87's Black Hole is about that of air.

Which is incredibly cool. But if an interpretation of the Holographic
Principle is true, then a black hole has no interior, just its event
horizon, where all the mass resides.

Or rather, its volume is indistinguishable from its surface, the event

All area, no volume, just a 2D quantum screen. I am not sure, that this
would be any cooler. Thinner then air may still be cooler.

On Thu, Apr 11, 2019 at 2:11 PM John Clark <johnkclark at gmail.com> wrote:

> On Wed, Apr 10, 2019 at 11:17 PM Darin Sunley <dsunley at gmail.com> wrote:
> Ask, and ye shall receive :
>> https://xkcd.com/2135/
> It's interesting that because the density of a Black Hole is inversely
> proportional to the square of the mass the density of M87's Black Hole is
> about that of air. Well it is if you count the Event Horizon as being the
> boundary of the thing; Einstein says there is a point of infinite density
> at the center although Quantum Mechanics disagrees. Nobody knows who's
> right.
> John K Clark
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