Black hole essentially a macro quantum effect, that's why GR can't give Description of black hole geometry.its just an approximation. Geometric Description doesn't even make sense

I recommend some of his Conformal Cyclic Cosmology lectures for a more in depth and technical reasoning. Are you talking about the WMAP and Plank satalite variations in temperature in the microwave background? There is a technical reason why, remember that not about anything blue or redshifting (traveling), because all the gravitional waves are heading in the same direction where we measure. Its from the intensity on the black hole gravity waves after they merge and explode with massive energies, and the data analysts measure intensity and size of the ripples in spacetime. And yes its means cycles of universes (aeons) as Penrose names them. Hope this help lol was effort haha

@@pauldavidhaynes8243 This is what Sir Roger Penrose says: "you think there will be blue shifted so the blue shifted ones are red if you like and the redshifted ones are blue but the red ones by the geometry of things it's actually the more distant ones because they what you're seeing is the radiation coming towards you you just have to look at the geometry when the the light cones intersect as in my previous picture here it's when you're looking at the distant ones that you will see the signal coming towards you like this when it's relatively close you will see the signal going away from you so it's the opposite way around from what you might expect nevertheless what we see is this very clumping of red signals in other words in the model i'm producing they are local clumped together in distance these are outside our our particle horizon our particle horizon would be where our past light cone hits the crossover and that's as far as we can see in normal cosmology but this is a signal here which is actually further out you can see further out because you can see into our past eon and that's all right anyway so these are in the picture the in the theory these are more distant the blue ones up here are closer they're they are actually redshifted but they are closer than the blue shifted ones down here you have to get used to the color coding being the wrong way around and all that but never mind red ones are actually distant in the theory blue ones not the greenish ones down here are probably just about on our past our horizons so you get a mixture of colors because they're some on one side and some are on the other side anyway that's the picture um and if it's something else you're seeing here you have to explain the extreme just discrepancy from a uniform distribution."

Sir Roger Penrose on the Sean Carroll podcast: "Now, what’s the earliest evidence that we directly see of the universe? In states that’s the cosmic microwave background. So this is radiation coming from all directions, electromagnetic radiation, and this radiation has a lot of entropy in it. But the main point that I’m gonna sort of concentrate on here is if you look at the, curve which represents the intensity for different frequencies. You have this thing, the curve goes up and then comes down again and it has… It’s what’s called the Planck curve.... So there’s a certain temperature where its maximum, and then, the radiation at higher frequencies, it goes down. And this Planck curve is observed. ...The COBE satellite measured this curve, the intensity for different frequencies of this radiation. They found an extremely good fit, an almost perfect fit to the Planck spectrum. What does the Planck spectrum tell us? It tells us what we’re looking at is maximum entropy. I mean, that’s the whole point of it, it’s what they call the black body radiation, which meant maximum entropy. So here, this is what I call the mammoth in the room, [chuckle] and you go back, and back in time where the entropy is supposed to be going down, and down, and down, until it reaches a maximum....Which is sort of the wrong way around.....you have these two things about the early universe, one is the Planck spectrum, which tells you that the matter and radiation, you see the Planck spectrum was telling you that the early stage of the universe, photons and matter were a kind of, at maximum and randomized as much as they could be. And so, that radiation comes to us, and you see this Planck spectrum. But the other feature about it is that it’s uniform, and that as far as gravity is concerned, is very low entropy. Because as things start to clump, and a good example of this is our sun. You see, our sun used to be a… Well a long time ago [chuckle], a distribution of gas all over the place and it went through various stages, but it, it clumped together and produced this hot body. It would be hot, even if there were no thermonuclear reactions, at all....So it gets that heat, which is… When compared, the darkness of this background sky is a very low entropy situation. You can get energy out of it by simply…We do, absolutely, that’s why we’re here. The plants do by photosynthesis and we live off plants and animals that eat plants and so on. And so that’s where it all comes from. So it comes from the fact that the sun’s a hot spot in a cold background sky. And this is why we are interested in the second law of thermodynamics, because it’s low and it’s creeping up, and is what we get our structure from and all that stuff."

Who's 4th guy? At which minute of the video?

@@quantumgravityhigherderiva9025 During the explanation (@22:00 for example). The 4th guy (Penrose included) going from the top . I could understand a few facial expressions during such a long explanation but he seems to be constantly mocking/despising or whatever that look is.

@@En_theo Okay, maybe you got the wrong impression. The 4th guy is the chairman of the session, and he was also busy looking at questions in the chat besides the slides. Moreover, He and Penrose know each other very well. Hope this clarifies your perplexity

@@quantumgravityhigherderiva9025 Not really, being chairman and looking at questions is not related to acting bored. Also "knowing very well"... are they really that close ? Because Penrose is a busy man and exchanging a few mails does not make them close. What is his name btw ?

@@FPIversiaman ​ @isi29 cup And where is the proof of that ? Saying that he's the chairman and he "knows" Penrose (yeah I know him too... like most of us) does not mean his attitude was not, at the very least in the appearance, disdainful. As a chairman, that's a double mistake : you don't act like that with your host. Just accept it, you had not thought before talking and have zero arguments besides your "lol"

Unfortunately we didn't get the pdf file of Penrose's slides

;)

@@quantumgravityhigherderiva9025 thank you very much for uploading them on youtube

@@physicsforever4793 You're welcome. In the near future more videos of talks and mini-lectures will be uploaded on similar topics, i.e. quantum gravity etc.

@@quantumgravityhigherderiva9025 that's wonderful to hear

@@physicsforever4793 This is awesome - two Nobel Laureates debating.