Carlo Rovelli: The Man Expanding Our Understanding of the Universe | UNFILTERED

My guest today is as close to a rockstar of theoretical physics as it's possible to be.
He's a philosopher of science, whose book "Seven Brief Lessons on Physics" has been translated into 41 languages, selling over a million copies worldwide.
His work on the quantum loop theory of gravity has seen him pick up where Einstein left off and features in his new book "White Holes". With prose so lyrical that he could've been a poet if not a physicist, his latest release journeys to where time and space end - the heart of a black hole.
My guest today is Carlo Rovelli.
Chapters:
0:00 - Introduction
2:00 - Oppenheimer + physics in mainstream culture
9:56 - Being an outsider in physics
13:30 - Younger generation changing the world
16:49 - What is quantum physics?
20:22 - Theoretical physics is ever-evolving
24:14 - What are white holes?
26:21 - Introducing black holes
33:38 - What happens inside a black hole?
39:37 - The limitations of Einstein's theory
47:21 - The centre point of Rovelli's work
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[@P-sv2dm]

The evolution of a black hole in the opposite direction of the arrow of time is equivalent to the evolution of a white hole, my question is, Does the accretion of the black hole and the ejection of its time inverse coincide for all types of black holes?

[@shawns0762]

Black holes are based on a mathematical misconception. Most people don't know that Einstein said that singularities are not possible. In the 1939 journal "Annals of Mathematics" he wrote - "The essential result of this investigation is a clear understanding as to why the Schwarzchild singularities (Schwarzchild was the first to raise the issue of General Relativity predicting singularities) do not exist in physical reality. Although the theory given here treats only clusters (star clusters) whose particles move along circular paths it does seem to be subject to reasonable doubt that more general cases will have analogous results. The Schwarzchild singularities do not appear for the reason that matter cannot be concentrated arbitrarily. And this is due to the fact that otherwise the constituting particles would reach the velocity of light." He was referring to the phenomenon of dilation (sometimes called gamma or y) mass that is dilated is smeared through spacetime relative to an outside observer. It's the phenomenon behind the phrase "mass becomes infinite at the speed of light". Even mass that exists at 75% light speed is partially dilated. General Relativity does not predict singularities when you factor in dilation. Einstein is known to have repeatedly spoken about this. Nobody believed in black holes when he was alive for this reason. Dilation will occur wherever there is an astronomical quantity of mass because high mass means high momentum. There is no place in the universe where mass is more concentrated than at the center of a galaxy. It can be shown mathematically that the mass at the center of our own galaxy must be dilated. This means that there is no valid XYZ coordinate we can attribute to it, you can't point your finger at something that is smeared through spacetime. Or more precisely, everywhere you point is equally valid. This is the explanation for the abnormally high rotation rates of stars in spiral galaxies. The "missing mass" is dilated mass. Einstein wrote about dilation occurring in "large clusters of stars" which is basically a very low mass galaxy. For a galaxy to have no dilation it must have very, very low mass. It has recently been confirmed in 5 very, very low mass galaxies to show no signs of dark matter. The shape of a galaxy is common in nature. From atoms to our solar system the overwhelming majority of the mass is in the center. The same must be true for galaxies. Where there is an astronomical quantity of mass there is an astronomical quantity of energy. The night sky should be lit up from the galactic center but it isn't. The modern explanation for this is because gravitational forces are so strong there that not even light can escape. Einstein's answer would be because the mass there is dilated relative to an Earthbound observer.

[@LimeyRedneck]

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