Take a Time "segment" as an "instanton" that has no interior - and inverts the 3D space. So the time itself is a noncommutative instanton.
't Hooft insists there is no singularity....
It's a Worm Hole connection TWO Black holes....insists Gerard 't Hooft
The collapsing body was a Billion years ago.
The in going matter should be on this line and the out going matter on that line - I took them out.....
Inside the shell is FLAT spacetime.
I'm not interesting in how it is formed....
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QGRAV2021
International Workshop on Quantum Gravity, Higher Derivatives & Nonlocality
8th to 12th March 2021
https://www.qgrav2021.com/
https://www.qgrav2021.inpcs.net/
Abstract: Several approaches have been considered towards a coherent theory that attempts to reconcile gravitation with quantum mechanics. One often encounters the need to allow for negative energy states. Alternatively, one may introduce not only a lower bound for energy, providing us with a flat background metric being the vacuum state, but also an upper bound, giving us an `antivacuum' state. Vacuum and anti-vacuum are dual to one another, as we see in the Penrose diagram for eternal (or long-living) black holes. Such a model for the quantum black hole would solve the information problem and produce a unitary evolution law. Negative energy states also emerge in an attempt to employ local conformal symmetry to turn gravity into a renormalizable quantum field theory. An attractive feature of such a theory is that it might render all physical interaction constants to become determined and computable following renormalisation group equations. This would include all mass parameters and the cosmological constant. Yet negative energies generate new problems.
https://www.youtube.com/watch?v=Uhd6UvC_Se0
So Penrose says Dark Matter would be left - but this is what is now considered to be White Holes!!
Then Gerard LEFT the zoom.
Penrose is trying to quantitize Gravity ... but 't Hooft is relying on quantum primarily (albeit from a classical perspective)....
Gerard on his own....
hilarious.
Gerard emphasizes that at VERY TINY Scale then gravity gets strong again.
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