Thanks to GroundNews for being our first ever sponsor on the podcast! Head to ground.news/CWP to save 40% on the Ground News unlimited access Vantage plan with my link. Let me know if there any other questions about black holes you have or other black hole guests you want me to invite onto the pod
There's bit of a problem with how you ended the video. Some things ARE impossible, no matter what someone might say to talk their way around it. We know the "grandfather paradox", for example, is impossible due to the fact that the future is a product of the past. If there was a change in the past, the present of the would-be time-traveler would already include the results of that change. So the time-traveler always fails in their mission: either it wasn't actually their grandfather, or the attempt is prevented (including possibly from the time-traveler dying themselves while in the past), or they changed their mind/gave up.
Hi David, can I just show you my appreciation. I never studied astrology or anything space related and I learn so much from your videos, please don’t stop!
Aquarians are the best, Mars gives bad luck, and always frame sentences with optimism unless you want to take money from people. That's all you gotta know about astrology. Honest.
I love trying to understand these subjects.. Janna is such a wonderful guest. She has a magnificent mind and explains things so well. Her analogies are brilliant and makes things much easier to grasp
Great episode! The thing about singularity as a placeholder and the information-paradox are some of the topics that keep me awake at night, trying to wrap my mind around them. The deeper I dive into astrophysics and quantumphysics the weirder and harder to understand it gets. I come from a chemical engineer background and love science. So I really appreciate this conversation. The holographic principle is another big topic that keeps me busy thinking about it. I'm so glad they talked about it too. Also what she said about wormholes was very insightful to me, as wormholes are a very abstract thing to think about. I never really got the concept behind that idea until I heared what professor Levin had to say about it. So thank you very much for this podcast. I feel like I learned something new today. Which is always a very satisfying thing for me.
God (Einstein's, Spinoza"s), I highly respect and love Dr. David Kipping, his podcasts and interviews, and the whole Cool Worlds concept and efforts. (Similar to Dr. Lawrence Krauss' Origins podcast).
Thank you, David.I was pumped when I saw Janna was on. I was wondering when you were gonna bring her on love you Janna ❤ your great . Keep up the great show buddy
Ooh boy, Dr Levin is beyond amazing in her ability to teach what she knows. I enjoyed every moment. ESPECIALLY white holes!! That concept has fascinated me bc I’m thinking that’s the Big Bang. And she said that!!!! I felt like an amateur physicist!! And singularity being in the future. So amazing.
20 minutes in and my brain is already fired 😵💫 but the I look up and see it's Jenna !!! it's bound to happen !!! I absolutely love her even though I need like SMBH size (mass) energy to understand most of the things she explains so eloquently! love seeing David too so invested in black holes because usually it's the exo planets & moons we see him dance with a lot! love cool worlds! love both of you guys! and freaking love so much black holes ❤️
Having left school with only a spirit level in chemistry i find talks like this so amazing, space time gives me a right stiffy, never pointed in any direction, the only time i had some praise in school was when an art graduate came and told me i had some great possibilities in art which was corroborated by an art teacher when i was in prison. Juhaptergee
If the event horizon distorts as particles cross it, is it not possible that quantum information is encoded into the horizon and returned to the universe via gravitational waves?
i’m surprised that gravitational waves weren’t mentioned at all during this interview! Maybe their relevance to understanding black holes is overstated, but i thought since it was the first object used to detect the waves they’d be a little more linked. let me know if i’m wrong! thanks for the interview 🙏🏽
Hello Professors, Black 🕳️ is very intriguing subject with a lot of enigmas still. I'm not a phisicist & understand nothing of these equations, so like a not professional I'd like to see a clear & undesputable image of a black hole 🕳️ taken by a very advanced 🔭. Furthermore, as far as I know, despite being caught, neutron stars are so distant & tiny that we still don't have close & very precious images. I personally prefer to use the term 'dark star' instead of a black hole, cos in my mind, black holes could be no more than quark stars, so dense that light can't escape tremendous gravity. Sorry, I'm an outsider! Thanks for the podcast. It's fantastic!
While you're on it, please also request clear and undisputable images of an electron, of a neutrino and of a photon. JK, you can't see them, but it doesn't make them less real
Janna is just amazing; I could listen to her talk on this subject for hours- it's unbelievably fascinating. Here's something I don't understand though about the whole surface area of the event horizon possibly being encoded with the information pertaining to what's fallen into the black hole. They say that the information contained in the blackhole is proportional to this surface area, not the volume. But- if the surface area in question is a sphere- then isn't it proportional to the volume? Isn't that just basic geometry- that the surface area of any sphere is proportional to its volume? In fact, isn't that true of any 3-dimensional shape in general? The surface area of a cube is proportional to its volume. If you increase the surface area, you increase the volume- and vice versa. So- since this is trivially true- I have to be missing something- what gives?
As one falls past the event horizon toward the singularity, you look back at from where you came, and you see the universe rapidly aging, just as the universe observes YOU as static, unchanging. You are travelling at the speed of light toward the end of the universe. As all matter gets attracted to and consumed by black holes, eventually all that is left are other black holes, which attract each other as well. The entire universe gets sucked into them, and each of them gets sucked into another, more powerful black hole, until every molecule of matter and every photon has been sucked in and shot through- out to an white hole: the beginning of the next universe. Every black hole links with every other black hole and connects to a white hole - creating the next big bang for the next universe. This just repeats like the universe breathing.
Dr. Kipping! I want to know who is trying to find the solar nursery from which our sun came from. Life is fragile and we have a sample size of 1. How can we better understand the formation of our sun or stars similar to ours?
Yes many teams are trying to by looking for stars with the precise same chemistry as our star. The challenge is that over 5 Gyr the cluster will be dispersed over the entire galaxy by now.
RE: David's assertion that you could move a wormhole and create a paradox. Wormholes are linking two points in spacetime. Think of a sheet of fabric, you put a needle and thread through it, and somewhere else you bring that needle and thread back up again. Can you move the emergence point? No, it is intrinsically linked to the spacetime fabric it emerged from. To move it would tear the fabric itself. So why would we assume that a wormhole could be moved from it's place in spacetime? I can't see why adding a dimension would change the logic.
55:01 I think the argument people have is that a black hole is an Einstein Rosenbridge and we can only see the door on our side as the other side is another universe. So not creating a new universe for every pice of matter but funnelling all matter that falls in into a new universe . So we can only see the entrance to these but not the exits in another universe. The exit in our universe would of been the Big Bang and reason we can’t see past that is the white hole event horizon in ours
50:25 hmm I'm a bit confused here. The Kerr ring singularity is famously a timelike singularity. It's why the extremal kerr solution gives rise to a naked singularity. What you can't avoid, falling into a rotating black hole, is the cauchy horizon which is thought to be unstable and will fry you. Not sure why prof Levin said you can't avoid the ring singularity
Because in the black hole space and time flip. Down becomes forward into future. Deep down (now forward in the future) lies the singularity. In Kerr's solution this singularity is the ring. If the matter in the ring cannot escape the ring, surely you won't be able too. Unless you're moving faster than c.
@stana1278 this again is only true for the schwarzschild solution. The Kerr solution flips back to a timelike singularity after crossing the event horizon and then the inner horizon which is a cauchy horizon.
I just wondered if it was possible that the information that falls into a blackhole could eventually be redistributed through the universe through the network of wormholes that would be holding the particles of space time together? I heard Brian Greene talk about this wormhole idea on Startalk with Neil Degrasse Tyson.
Quantum information only seems to be able to travel back in time. You can know someone in Andromeda is holding the opposite spin entangled information instantaneously. But when you try to compare information with someone in Andromeda, speed of communication would be limited by speed of light.
What if.....Black holes are the acne of the universe. They grow and grow until they reach some threshold where they burst (create a white hole) , only they don't burst into a universe, they burst out of one. It would appear as a big bang, creating a new universe seemingly out of nothing.
Mini wormholes with a fancy name for every single plank volume thrown into a black hole is such a better and simpler answer than info is lost. Physicists are such a smart and reliable group of people. If your "suggestion" is more stupid than info is lost down the well, please don't bring me water.
Logic gates defined as gravitational inferemetric patterns and they are analog. A singularity hot wired as an A.I. would see us on the surface as a Holographic pattern. Manipulate the surface and what some body would do is manipulate what ever , whoever is being watched via Wolfgang Pauli Exclusion Principle.
Or it could be a dense black body that light curves around. Stars go into black holes only to be burped out years later. Almost like the star went behind a gravitational lens.
Electrons are all the same, but their relativistic mass increase with velocity. Black holes could be just just electrons travelling at very high velocities.
I don't think we are ganna figure out the universe anytime soon. How can we when we don't have the tools and capability to test everything out? My opinion is that we are surrounded by more dimensions than we can see and that's where the black holes lead to as well as black holes are causing space to be in a vacuum. Black holes has to be causing space to be in a vacuum cuz nothing is in a vacuum it needs energy to create one. Still doesn't explain why the universe is expanding if the black holes are sucking that's why I feel like the universe is more in tune with opposites.
The guest seemed great but her analogy about black holes being fundamental particles seemed a bit of a stretch and I don't see what you gain by thinking of them that way.
Thanks to GroundNews for being our first ever sponsor on the podcast! Head to ground.news/CWP to save 40% on the Ground News unlimited access Vantage plan with my link. Let me know if there any other questions about black holes you have or other black hole guests you want me to invite onto the pod
There's bit of a problem with how you ended the video. Some things ARE impossible, no matter what someone might say to talk their way around it. We know the "grandfather paradox", for example, is impossible due to the fact that the future is a product of the past. If there was a change in the past, the present of the would-be time-traveler would already include the results of that change. So the time-traveler always fails in their mission: either it wasn't actually their grandfather, or the attempt is prevented (including possibly from the time-traveler dying themselves while in the past), or they changed their mind/gave up.
Itiscoolwprldbecauseofphysics
Hi David, can I just show you my appreciation. I never studied astrology or anything space related and I learn so much from your videos, please don’t stop!
No problem buddy, I go where I'm needed the most.
Just a friendly reminder.
Astrology = horoscope/tarot
Astronomy = Cool Worlds
Aquarians are the best, Mars gives bad luck, and always frame sentences with optimism unless you want to take money from people. That's all you gotta know about astrology. Honest.
You mean " Astronomy "
@@soulflower181 yep, could also be confusing it with cosmology (the more specific subset of studying the stars).
Listening to janna talk about space is such a guilty pleasure for me!
leaving a comment to train the algorithm that I love these videos. Please have another talk with Professor Levin.
Yup
Always crucial to have a well-trained algorithm. Had to put down my last one after he tried to show a Jake Paul video to the mailman.
Great interview! Janna Levin's explanations of black holes are easy to follow as a lay person. Really interesting conversation.
I haven't heard such interesting conversation in months!
OMG YES! Such a fan of Janna Levin :) This is going to be a great episode! :) :) :)
Love love love Janna Levin. I want to see Janna interview Ed Witten!
31:54-37:10 Fascinating! Great conversation
I could never get sick of listening to Janna! Such an incredible communicator!
Good to see you back with your podcast professor Kipping. Waiting for some new content to watch during this shorter days to come.
I am a simple nerd. I see cosmology and Janna Levin, I click. 😊🌸
I love trying to understand these subjects.. Janna is such a wonderful guest. She has a magnificent mind and explains things so well. Her analogies are brilliant and makes things much easier to grasp
I will listen to anything Janna Levin speaks on or to. What a great mind, and what a gift it is to exist at the same time.
Great episode! The thing about singularity as a placeholder and the information-paradox are some of the topics that keep me awake at night, trying to wrap my mind around them. The deeper I dive into astrophysics and quantumphysics the weirder and harder to understand it gets. I come from a chemical engineer background and love science. So I really appreciate this conversation. The holographic principle is another big topic that keeps me busy thinking about it. I'm so glad they talked about it too. Also what she said about wormholes was very insightful to me, as wormholes are a very abstract thing to think about. I never really got the concept behind that idea until I heared what professor Levin had to say about it. So thank you very much for this podcast. I feel like I learned something new today. Which is always a very satisfying thing for me.
Thank you for this podcast, this was insightful and fascinating.
Whohoooo! Another awesome video.
Good to see the podcast back!
First time listening to Dr. Janna Levin. She is extraordinarily interesting! Thank you!
That was fascinating. I just love it when scientists feed my brain and Prof Levin is a feeder. Please have her back again.
So good to listen to this podcast.
God (Einstein's, Spinoza"s), I highly respect and love Dr. David Kipping, his podcasts and interviews, and the whole Cool Worlds concept and efforts. (Similar to Dr. Lawrence Krauss' Origins podcast).
I missed this podcast so much
I absolutely love the way she explains things. Thank you for another great episode! I very much enjoyed it 👏
I see Prof. Janna Leyvin and I click.
Ditto. She's definitely the layman's physicist imo. I could listen to her voice forever.
Yup
Me too!!
Your cosmology videos are so excellent. I'm so glad I found your channel and podcast!
Ooh man, a video on one of my favorite things to take in. Thank you for a wonderfully educational video!
Wow, just found the podcast channel. And found this cool episode might have to binge watch a few to catch up. Great interview, thank you.
I am only here for queen Janna! A Startalk original!
Great talk. Wonderful guest.
Great interview on a fascinating topic👍 Thank you
Thank you, David.I was pumped when I saw Janna was on. I was wondering when you were gonna bring her on love you Janna ❤ your great . Keep up the great show buddy
Janna Levin….here for it!!! She is my favorite!!! ….she starts at 5:16 btw.
So excited to hear about your exo planet discoveries....keep up the great work.
Ooh boy, Dr Levin is beyond amazing in her ability to teach what she knows. I enjoyed every moment. ESPECIALLY white holes!! That concept has fascinated me bc I’m thinking that’s the Big Bang. And she said that!!!! I felt like an amateur physicist!! And singularity being in the future. So amazing.
20 minutes in and my brain is already fired 😵💫 but the I look up and see it's Jenna !!! it's bound to happen !!! I absolutely love her even though I need like SMBH size (mass) energy to understand most of the things she explains so eloquently! love seeing David too so invested in black holes because usually it's the exo planets & moons we see him dance with a lot!
love cool worlds! love both of you guys!
and freaking love so much black holes ❤️
No one explains BHs better than Prof. Levin.
JL is one of my favourite science communicators, just dropped her name earlier today.
First time hearing Levin, certainly not the last; superbly interesting interview.
Thank you.
Having left school with only a spirit level in chemistry i find talks like this so amazing, space time gives me a right stiffy, never pointed in any direction, the only time i had some praise in school was when an art graduate came and told me i had some great possibilities in art which was corroborated by an art teacher when i was in prison. Juhaptergee
The Cool Worlds Podcast is the place to go for Astronomy...or the place to go if you need to borrow some chairs.
Well that hour and a bit went really fast. Some time dilation clearly going on when listening to Prof Jenna.
Luv these Videos..
Love this! Congratulations!
Janna!! My secret crush, shhh. Love the podcast, professor. Always the best content. Many thanks.
Brilliant as always.
Jan Eleven is the best superhero!
Nice ! I love this!
Good discussion. Subscribed.
I love this woman! I wished i could meet someone this intelligent.
I love her ❤ i could listen to her everyday
JANNA IS WONDERFUL. GREAT TEACHER. SMART SCIENTIST🎉❤SPACETIME...difficulty? Listen to the professor 😮THANK YOU.
I just have to say.. my idea of the Sci-Fi black hole has been dashed as well. A point in time not a point in space.. now that's mind blowing
If the event horizon distorts as particles cross it, is it not possible that quantum information is encoded into the horizon and returned to the universe via gravitational waves?
Janna is awesome
Brilliant!
i’m surprised that gravitational waves weren’t mentioned at all during this interview! Maybe their relevance to understanding black holes is overstated, but i thought since it was the first object used to detect the waves they’d be a little more linked. let me know if i’m wrong! thanks for the interview 🙏🏽
Im 57 y.o. and would seriously love to see this resolved before I die.
Janna Levin has always been one of the hottest physicists for sure
Fuck yes
Agreed
Hello Professors, Black 🕳️ is very intriguing subject with a lot of enigmas still. I'm not a phisicist & understand nothing of these equations, so like a not professional I'd like to see a clear & undesputable image of a black hole 🕳️ taken by a very advanced 🔭. Furthermore, as far as I know, despite being caught, neutron stars are so distant & tiny that we still don't have close & very precious images. I personally prefer to use the term 'dark star' instead of a black hole, cos in my mind, black holes could be no more than quark stars, so dense that light can't escape tremendous gravity. Sorry, I'm an outsider! Thanks for the podcast. It's fantastic!
While you're on it, please also request clear and undisputable images of an electron, of a neutrino and of a photon.
JK, you can't see them, but it doesn't make them less real
It seems like the curiosity about Black Holes is the only thing stronger than their gravity!
I glad those in the know know they dont know much; but they keep at it. A person has to respect that.
Ok at 4:45 I really thought you were going to say, "all the space holes" 🤣 instead of 'all the permutations'
Janna is just amazing; I could listen to her talk on this subject for hours- it's unbelievably fascinating. Here's something I don't understand though about the whole surface area of the event horizon possibly being encoded with the information pertaining to what's fallen into the black hole. They say that the information contained in the blackhole is proportional to this surface area, not the volume. But- if the surface area in question is a sphere- then isn't it proportional to the volume? Isn't that just basic geometry- that the surface area of any sphere is proportional to its volume? In fact, isn't that true of any 3-dimensional shape in general? The surface area of a cube is proportional to its volume. If you increase the surface area, you increase the volume- and vice versa. So- since this is trivially true- I have to be missing something- what gives?
'During Semester , i open Window , and observe Moon, and can see Wormhole , making its way across Sky.' WORD missing is THE.
As one falls past the event horizon toward the singularity, you look back at from where you came, and you see the universe rapidly aging, just as the universe observes YOU as static, unchanging. You are travelling at the speed of light toward the end of the universe. As all matter gets attracted to and consumed by black holes, eventually all that is left are other black holes, which attract each other as well. The entire universe gets sucked into them, and each of them gets sucked into another, more powerful black hole, until every molecule of matter and every photon has been sucked in and shot through- out to an white hole: the beginning of the next universe. Every black hole links with every other black hole and connects to a white hole - creating the next big bang for the next universe. This just repeats like the universe breathing.
Gotta love a woman with such a massive passion for holes!
Dr. Kipping! I want to know who is trying to find the solar nursery from which our sun came from. Life is fragile and we have a sample size of 1. How can we better understand the formation of our sun or stars similar to ours?
Yes many teams are trying to by looking for stars with the precise same chemistry as our star. The challenge is that over 5 Gyr the cluster will be dispersed over the entire galaxy by now.
@@CoolWorldsPodcast what is a Gyr? Also thank you for the response
@@Christheonetruechrisa Gyr is a Giga Year or 10^9 years ie 1,000,000,000 years
0:21
A glitch in the simulation?
Jan Eleven! Legend.
Used to read time life ĺibrary for astronomy Carl sagan james Burke lots of books finally the video is sometimes used properly
RE: David's assertion that you could move a wormhole and create a paradox. Wormholes are linking two points in spacetime. Think of a sheet of fabric, you put a needle and thread through it, and somewhere else you bring that needle and thread back up again. Can you move the emergence point? No, it is intrinsically linked to the spacetime fabric it emerged from. To move it would tear the fabric itself. So why would we assume that a wormhole could be moved from it's place in spacetime? I can't see why adding a dimension would change the logic.
A fair point but you could create the same effect by also just placing a large mass near one of the mouths which would have the same effect
55:01 I think the argument people have is that a black hole is an Einstein Rosenbridge and we can only see the door on our side as the other side is another universe. So not creating a new universe for every pice of matter but funnelling all matter that falls in into a new universe . So we can only see the entrance to these but not the exits in another universe. The exit in our universe would of been the Big Bang and reason we can’t see past that is the white hole event horizon in ours
Going gray like Superman would.
Trust me, it’s a compliment.
50:25 hmm I'm a bit confused here. The Kerr ring singularity is famously a timelike singularity. It's why the extremal kerr solution gives rise to a naked singularity. What you can't avoid, falling into a rotating black hole, is the cauchy horizon which is thought to be unstable and will fry you. Not sure why prof Levin said you can't avoid the ring singularity
Because in the black hole space and time flip. Down becomes forward into future. Deep down (now forward in the future) lies the singularity. In Kerr's solution this singularity is the ring.
If the matter in the ring cannot escape the ring, surely you won't be able too.
Unless you're moving faster than c.
@stana1278 this again is only true for the schwarzschild solution. The Kerr solution flips back to a timelike singularity after crossing the event horizon and then the inner horizon which is a cauchy horizon.
I'm no Alvin Einstein but I did understand to a degree.
I just wondered if it was possible that the information that falls into a blackhole could eventually be redistributed through the universe through the network of wormholes that would be holding the particles of space time together? I heard Brian Greene talk about this wormhole idea on Startalk with Neil Degrasse Tyson.
No complaining!
Quantum information only seems to be able to travel back in time. You can know someone in Andromeda is holding the opposite spin entangled information instantaneously. But when you try to compare information with someone in Andromeda, speed of communication would be limited by speed of light.
What if.....Black holes are the acne of the universe. They grow and grow until they reach some threshold where they burst (create a white hole) , only they don't burst into a universe, they burst out of one. It would appear as a big bang, creating a new universe seemingly out of nothing.
Publish this
Mini wormholes with a fancy name for every single plank volume thrown into a black hole is such a better and simpler answer than info is lost. Physicists are such a smart and reliable group of people.
If your "suggestion" is more stupid than info is lost down the well, please don't bring me water.
hi david
Ya’ll got any aliens?? 👾
Einstein cracks classical physics, and gets tormented by quantum physics.
Odd ain't it Always thought that yay photo electric effect brownian motion
Is professor Levin related to that other famous professor, Michael Levin?
Logic gates defined as gravitational inferemetric patterns and they are analog. A singularity hot wired as an A.I. would see us on the surface as a Holographic pattern. Manipulate the surface and what some body would do is manipulate what ever , whoever is being watched via Wolfgang Pauli Exclusion Principle.
Or it could be a dense black body that light curves around. Stars go into black holes only to be burped out years later. Almost like the star went behind a gravitational lens.
I love Janna Levin.
Talk algorithmic talk yes please more
Electrons are all the same, but their relativistic mass increase with velocity. Black holes could be just just electrons travelling at very high velocities.
BHs are chargeless imho
@@TJ-hs1qm Schwarzshild and Kerr black holes are chargeless. But Reissner-Nordstrom and Kerr-Newman have charge.
@@classicalmechanic8914thx
If theists had just a modicum of her awareness they would stop worshiping supernatural beings. How refreshing to listen to purely intelligent people.
I don't think we are ganna figure out the universe anytime soon. How can we when we don't have the tools and capability to test everything out? My opinion is that we are surrounded by more dimensions than we can see and that's where the black holes lead to as well as black holes are causing space to be in a vacuum. Black holes has to be causing space to be in a vacuum cuz nothing is in a vacuum it needs energy to create one. Still doesn't explain why the universe is expanding if the black holes are sucking that's why I feel like the universe is more in tune with opposites.
Light cannot escape from a black hole?? Nooooo!!
What is Jana s IQ?
ARE WE GOING TO HAVE WORMHOLE TECHNOLOGY SOON ?
5:13
This is proper physics porn for me. The only thing better would be getting the answers to all that we don't know or understand!
I really hope I never fall into a black hole
Timestamps timestamps timestamps
Feel free to suggest!
The guest seemed great but her analogy about black holes being fundamental particles seemed a bit of a stretch and I don't see what you gain by thinking of them that way.