Hologram Within a Hologram Hints at Fate of Black Holes

erek

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“It’s magic,” said Ahmed Almheiri, a physicist at the Institute for Advanced Study (IAS) in Princeton, New Jersey, who co-authored the recent paper. “We know how to prove” that the shift in perspective works, he said, “but we don’t have a complete understanding of why this is happening.”


We consider a gravity theory coupled to matter, where the matter has a higher-dimensional holographic dual. In such a theory, finding quantum extremal surfaces becomes equivalent to finding the RT/HRT surfaces in the higher-dimensional theory. Using this we compute the entropy of Hawking radiation and argue that it follows the Page curve, as suggested by recent computations of the entropy and entanglement wedges for old black holes. The higher-dimensional geometry connects the radiation to the black hole interior in the spirit of ER=EPR. The black hole interior then becomes part of the entanglement wedge of the radiation. Inspired by this, we propose a new rule for computing the entropy of quantum systems entangled with gravitational systems which involves searching for "islands" in determining the entanglement wedge.

https://www.quantamagazine.org/holo...n-to-black-hole-information-paradox-20191119/
 
Magic is an absurd excuse for the raspberry jam that real science proves to fill black donuts.

Lets face it, nothing from our timeframe that has ever fallen toward the horizon of a virtual
ringularity has reached it yet. Therefore all that falling stuff is stuck in time right at the edge.
Won't believe itself stuck by its own timeframe, but that timeframe's opinion doesn't matter.
Has no reason to fall further or faster cause it would lose no potential energy by doing so.
Oviously nothing real can exist inside but dark rasperry jam.

Time now for those who favor pointlike singularities to explain certain absurdities! Angular
momentum of a dot, violation of exclusion, accreting material making a pair of right angle
turns to escape as jets? Perhaps Alice was gifted to believe these seven impossible things
before breakfast. But this is all much easier to explain when the horizion is a donut. Jets
are near misses that need only pass through the hole at a tangent.

Was Newton who posited that Earth could be replaced by a hollow sphere of equal weight,
and no-one on the outside would note any difference. Yet anyone on the inside would find
no gravity at all. Not just at the center, but anywhere inside. Perhaps it is stretch to claim
the same principle applies to a donut. No gravity inside could mean resumption of normal
time for waiting matter swallowed as the donut grows to envelop it. With no compressive
force, anything inside would be spraypainted to the walls by its own explosion. Only to get
stuck again at the new larger horizon.

We have all been told that such horizons are spherical because all the stuff that hasn't
yet had eterity to fall to the center, somhow already packed to an impossible dot inside?
Nosireebob! A disk of material compressed toward an imaginary virtual ring, stopped at
the horizon, re-distributed by internal decompression to form a smooth toroid. Better to
hold momentum, sprinkles, hair from the noise-floor. Hawking's five second rule applies...
 
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Therefore all that falling stuff is stuck in time right at the edge.
From our point of view, from the point of view of the stuff that is falling it, it's not stuck in time at all it fell in, it made the black hole more massive, it doesn't exist anymore.
 
Can no longer be observed from outside as a discrete object is not exactly the same
as does not exist. Nothing that didn't start there has ever had time to "fall in", but a
horizon may grow to envelop waiting stuff. Should know this already from Dilsney -.

Stop poking holes in my donut.
 
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