Brian Greene and Sir Roger Penrose: World Science U Q+A Session

Winner of the 2020 Nobel Prize in Physics, Sir Roger Penrose joins Brian Greene to share insights into black holes, general relativity, quantum mechanics, the mathematical road toward reality, the evolution and fate of the universe, and consciousness. In this conversation, they discuss Sir Penrose's extraordinary career and the wealth of impactful ideas he has developed.
This program is part of the Big Ideas series, supported by the John Templeton Foundation.
Live Sessions are conversations hosted by Brian Greene with world-renowned scientists, including World Science U faculty exploring matter, mind, and the cosmos.
Official Site: www.worldsciencefestival.com/
Twitter: / worldscifest
Facebook: / worldscience. .
Instagram: / worldscifest
#science #WorldScienceFestival

[@larskefka3373]

one of the best things about this interview is that brian just let roger talk. he didn't just unneccessarily interrupt. long stretches of roger just talking. this is how it should be done.

[@Video2Webb]

TOTALLY AGREE! Brian Greene can keep his mouth shut and not interrupt. Yet elegantly can keep the flow going with more questions. It is a perfect interview!

[@Gyphon]

How lucky we are to live in an age when we can listen to such ideas with just a click. Be Thankful.

[@juliarekamie]

Amazing Gratful Now 👌

[@espaciohexadimencionalsern3668]

yes dude.

[@kentjensen4504]

Well said.

[@joshlogue3264]

I still want a CME to wipe it all away

[@Alexandermhinton]

Just watching the chat feed of all the people saying where they are from. A little ping, just a string of a few bytes travelling from all over the planet to say hi on a youtube chat given by Brian Greene. So cool I got a little emotional :)

[@DeeS8]

I'm so lucky to be living in this era where big ideas could be available for free

[@felixvandiggelen8731]

Big ideas have always been free, stop propagating KZbin propaganda.

[@janouglaeser8049]

@@felixvandiggelen8731 No they've not.

[@DubzCo]

@@felixvandiggelen8731 how have things always been free? what beef do you have with youtube aswel you are obviously using it

[@LuisAldamiz]

@@felixvandiggelen8731 - They were never as accessible as today. It's not YT, it's the Internet (which was after all invented to serve scientific exchange primarily).

[@phillynott2459]

Me 2, but I would love to know, for free, 1. HOW DID THE UNIVERSE BEGIN? 2. HOW DID CHEMISTRY BECOME BIOLOGY?

[@petermoore900]

I can't believe I watched that whole thing but I couldn't stop. Amazing. Two of my biggest nerd crushes. Not only that but I understood 90+% of it, without a formal physics degree, which just goes to show what phenomenal teachers they both are. World treasures.

[@alexjbriiones]

This is hilarious that one of the smartest people in the world is so insightful regarding his mathematical background and that he is so humble. Roger Penrose is my hero! By the way, Brian, what a fantastic idea that you are making these videos available to the world. Thank you.

[@arnoldkim4356]

I am 63, a biologist, and decided to learn modern physics and related math, and picked up The Road to Reality some 8 months ago, studying most of the subjects of math and physics mentioned in the book all along, and finished reading it now. I have learned a lot and feel great. But still when Brain says "general relativity can be derived from string theory", there is no way I can independently verify it, but I just have to believe that's the case. I am very thirsty of the real theoretical and mathematical details behind the physics talks. I have listened and watched physics talks a lot, and learned almost all of the physics stories by heart. What I really need is the theoretical/mathematical nitty gritty of those tales, the real equations and machineries that makes the physics work.

[@espaciohexadimencionalsern3668]

The time this 2 sides match each other then I could believe them by now both sides make no sense.

[@espaciohexadimencionalsern3668]

Click my logo to see some videos of mine you might like it.

[@jonnymahony9402]

Use Leonard Susskind's lectures here on youtube (and his books) and then Barton Zwiebach's First Course in String Theory 👍Very easy but serious introduction. Basic understanding of analysis and linear algebra are recommendet.

[@SpinningSalads]

Sir Roger is amazing. I feel privileged to be able to watch and listen to our modern day Einstein.

[@mikeghoshal6613]

His profound thinking "Universe loses track of time --- when there is no mass" Is just fascinating. I was waiting for him to get Nobel Prize, and now that has come to be.

[@mikeghoshal6613]

@xrm160xqw Thank you, excellent answer. Profound.

[@RicardoMarlowFlamenco]

Every photon already knows the answers lol

[@noblesurfer]

​I thank the Big Bang for Roger Penrose. What a magnificent clump of atoms he is!

[@black_jack_meghav]

Indeed

[@jadecoley]

Absolutely. I could listen to him forever.

[@ThisNameWasTaken0]

Hahaha

[@strangerwithscience3597]

Why are you thanking the big bang for atoms?? Atoms come from stars not the big bang...

[@noblesurfer]

Yes, of course I know there were no heavy elements when the universe began, but for matter and atoms to exist at all, it requires a Big Bang ;D

[@LuisAldamiz]

Amazing. It's not just a luxury to be able to listen to these conversations but I finally came to understand why Penrose is so relevant: he doesn't fear to think outside of the box.

[@alexm6181]

He doesn't mind thinking outside of the box, and he's probably one of the most intelligent geniuses in history. I have no doubt he'll be as famous as some of the other greats once our technology allows us to understand his ideas via proof.

[@thomaslechner1622]

Started Greene's book "Fabric of the cosmos", and could not stop reading. One of the best books about theoretical physics, written in a style that anyone can understand! Started Penrose's "Road to reality", and gave up after a few pages. I cannot understand most of the mathematics involved.

[@shanejohns7901]

I think Mr. Greene did a fantastic job with this interview. His charm clearly made Sir Penrose feel quite welcome and properly respected. We won't have Sir Penrose around for all that much longer, I fear. And once he's gone, the access to first-hand testimony will be cut off. I believe that in hundreds of years from now, the people who are then living will see Sir Penrose as a giant of his time. And any and all biographical information -- especially straight from the horses mouth, so to speak -- will be greatly valued. Great job, Mr. Greene!

[@lorrainehawke4129]

To sir ROGER PENROSE,SUCH a Beautiful mind,worked on Black Holes,so important , and has taken DR JOHN B HAWKE MB BS,CC PAPER Written in 1884 and incorporated into John's 600 page UNIFIED FIELD THEORY,1978,TAKEN 13 YEARS TO STUDY,JOHN DIED 2 YEARS AGO WITH NO ONE TO THANK HIM BUT USED HIS VALUABLE WORK IN ALL FIELDS OF SCIENCE WORLD WIDE.

[@Dr10Jeeps]

These types of informative talks make the internet very special. Education at a click.

[@Video2Webb]

Science brings forth the capability of broadcasting its history and content - which is meaning - via its own discoveries translated into technical modes. This interview, amongst so many other contributions from hundreds of people on KZbin, really demonstrates this magical process. Humans can now learn regardless of being formal students. Culture is evolving.

[@geraldsparks2928]

I love watching Roger Penrose whenever I have a chance. Wonderful man and so much fun too listen to.

[@lamisk5479]

Unreal. This man is 90 and sharp as ever. Glad he lived to receive his Nobel.

[@User-uj7nz]

This guys 90?

[@primetimedurkheim2717]

@@User-uj7nz Yeah, Brian Greene is 90.

[@elguada123]

😂😂😂 they are literally fossils

[@adrianwright8685]

Greene is 57, Penrose is 89

[@celsopinheiro]

He is a time lord... Years are nothing for the guy that knows the secrets of time-space

[@jadecoley]

The best 2hours 53mins of my year. Thank you so much!!!!

[@espaciohexadimencionalsern3668]

was waiting to come.

[@stefleskiv8757]

I agree completely. Also... LLAP 🖖

[@jadecoley]

@@stefleskiv8757 🖖🏼

[@rubenanthonymartinez7034]

You sound like member of a cult.

[@rubenanthonymartinez7034]

You people realize this is hypothetical model, no more than the rehashing of either the oscillating universe or the bouncing universe.

[@lunarrover24]

Of the many interviews of Sir Roger that I binged this week, this has to be my favorite.

[@user-qu8tp1hj4o]

Same

[@evandallmann4217]

The MAN the MYTH the LEGEND. Penrose is amazing how he blends his ideas to unravel this space we interact with.

[@margesukowjjkjiijhipob9056]

Wonderful 😊 morning to you

[@richardlaferriere7062]

​@@margesukowjjkjiijhipob9056😅😅😅

[@richardlaferriere7062]

​@@margesukowjjkjiijhipob9056😅😅😅😅😅😅😅😅😅

[@martinblake2278]

IMO, Penrose is on the same level as an Einstien. This guy has made very significant contributions, it's mind boggling not that many people are aware of him.

[@user-qu8tp1hj4o]

I actually discovered him recently and he is very impressive, but not Einstein… Einstein is pretty much the father of modern physics

[@hireality]

What a joyful talk🙂 Brilliant Brian Greene, kudos to you, this is one of the best interviews with the fascinating Roger Penrose👍

[@naimulhaq9626]

Did Penrose win the fields medal?

[@felixvandiggelen8731]

After years of ignoring him, Brian now has to because of Nobel Prize and Brian's popularity continuation or not.

[@jonnymaddox787]

Also don't miss his talk with Leonard Susskind 😁👍

[@tanyachou4474]

Thank you for making science so accessible 🙏🏻

[@swarnendupachal2579]

😍

[@chefchristianfood7961]

Well-being and good audiobook

[@CR-rb1fx]

Congratulations Sir Penrose. Thank you very much Dr. Greene - absolutely brilliant conversation.

[@dougg1075]

Penrose is such a humble man .. I really like him.

[@erichodge567]

I cannot remember a Nobel Prize that pleased me more than that received by Roger Penrose in 2020. I guess 2020 wasn't all bad.

[@rubenanthonymartinez7034]

Yes, but can he sing?

[@PedroDiMaggio-dk4lb]

👍

[@scottahunt]

What a superb conversation. Roger Penrose is a rare treasure to humanity. I feel pure joy listening to his ideas and experiences. Brian Greene did an outstanding job of probing with excellent questions, and more importantly, truly listening.

[@rraechdavid]

I work in a totally different field, and I’m so thankful for World Science Festival and Brian Greene for making science this deep accessible! I’ve always been a fan of science and watching these videos keep me curious and awed. Thank you so, so much! - Rachel from the Philippines

[@DipakRaikar]

Yes. Same here. I daytrade Nasdaq successfully, there is not much to do there. These vids keep my brain exercised.

[@hoola_amigos]

Saying that one is a fan of science is saying that one likes truth. I mean, of course you are. 😉

[@Chris-ui9gk]

@@DipakRaikar hyhchcuchchuhchchcuchchchhch

[@Chris-ui9gk]

@@DipakRaikar chchch hchchchchchchchch hchhchchchchchchchchchgchchhchuchcuchchchchchuchchchch hchchchchchchchch hchchchchchchchch hchchchchch

[@Chris-ui9gk]

I’m chcuicc

[@russellbaxter6518]

this is my favorite a discussion between Brian Greene interviewing Sir Roger Penrose. Wonderful and glorious.

[@johnvandenberg8883]

Impressive work, Brian. Kudos! Man, this Penrose guy is still sharp as hell!

[@robjohnston1433]

He's so modest that he doesn't make it totally clear that he and his father actually invented the Never-ending Up/Down staircase that MC Escher made famous in his drawings! Just after WW2, they happened to see an exhibition of Escher's works in Amsterdam and were impressed and excited, so on their way back to England on the train, they just came up with it. They published it in a psychology journal and sent a copy to Escher. Everyone (including me) thought it had been Escher's idea -- or was some ancient "paradox" -- but no ... Sir Rog & dad drew it first in the late 1940s, when Sir Roger was on vacation from university. Pretty bloody amazing, but an early sign of his absolute visual genius -- as well as mathematical genius!

[@kenadams5504]

In 1940 Roger would have been 8 yrs. .and how could they have got a train back to England when there was no channel tunnel in the forties.

[@tonyrandall3146]

Dr Greene nails it with humour and moderation every time.

[@behnam4582]

Please bring back sir Roger penrose!! Perhaps less topics to cover but more in depth and detailed. Big thank you to everyone that made this meeting happen ❤️

[@LittleBlue42]

Brian Greene always does amazing interviews

[@joeroganjosh9333]

New Zealand - just off to the pub, I’ll be watching this tomorrow (Saturday) morning. Cheers.

[@danielthomas5486]

Kiaora bro

[@hrob6381]

Sir Roger's razor sharp memory at the age of 90 is just scary. The amount of knowledge his brain contains and can efficiently recall at will is extraordinary.

[@powerdriller4124]

His cell microtubules still coherent at age 90 !

[@PedroDiMaggio-dk4lb]

What a wonderful conversation. Especially the final arguments. It was profound. Just fantastic.

[@aliahmadipour2143]

That's very generous of them sharing their time and knowledge with us thank you both

[@ashutoshsingh9639]

" I'm slow but NOT stupid!", that is why he won the Nobel prize !

[@doodelay]

it's incredible to hear him recount these dates and stories and hear him describe what that era was like and what the big mysteries were at the time.

[@georgepaul5843]

Sir Roger Penrose is a delightful old Laureate. Brian Greene does a good job keeping Roger going. Thanks Brian.

[@imaltenhause4499]

Well, that was just fantastic. Roger is full of wonderful, subtle and often hilarious anecdotes. Most interviewers don’t pick up on those and have the tendency to move on to the ‘important’ stuff. For me, it’s just the opposite. I love to hear what sparked those ideas, what the circumstances were, how he felt. Those things make a theory come alive. Brian, you delivered a masterpiece.

[@TheCosmicDestroyer....]

It's been an absolute honour to watch two geniuses together explaining complicated things simplest way possible ❤️❤️❤️

[@rubenanthonymartinez7034]

Geniuses? I think not.

[@santerautis3839]

@@rubenanthonymartinez7034 dude, Sir Roger Penrose is absolutely a genius. One of the few greatest scientists of the 20th century and certainly the greatest of the 21st century along with Stephen Hawking, rip. Brian Greene is not a genius, but a wonderful and very intelligent person nonetheless.

[@rubenanthonymartinez7034]

@@santerautis3839 They are certainly geniuses in inventing stories using the mathematical language. Dude!

[@Al-oh9yr]

@@rubenanthonymartinez7034 and what have u done so far in your bum life kid?

[@rubenanthonymartinez7034]

@@Al-oh9yr the answer to your question is this *{∅}*

[@nickrose411]

Brian is great, makes the most complicated stuff easy to understand. A genius in his own right.

[@thedalailmao]

This was cathartic to watch and listen. Incredible genius in Roger Penrose.

[@TonyFDiego]

Two gentlemen who transcend national boundaries in order to bring the world and for that matter, the entire universe closer together.

[@kagannasuhbeyoglu]

it was a great publication. Grand master Sir Roger Penrose. And Brian Greene thank you so much.

[@tixch2000]

Amazing how intuition build up and somehow some circumstances makes it working to solve deep questions.. Thank you Sir Penrose !

[@Vito_Tuxedo]

This. Was. Just. Brilliant! It is just such an absolute joy to see you two interacting. Sir Winston Churchill once describe Americans (meaning citizens of the USA) and Brits as two peoples separated by a common language. Not in this case. Your mutual deep understanding of physics transcends the normal vagaries and fog of semantic chaos. You guys GET each other. Your discussion of string theory was a profound testament to your mutual respect. This is why I love physics done by *_real_* physicists! 😎

[@chrisbennett6260]

and who would be false physicists ?

[@GR-sc3ph]

The more knowledgable about the universe an individual is the more humility and respect he has about our cosmos

[@vcgaminggamepro8899]

Greene is great at interviewing

[@sanjaykumarkarna6986]

Valuable time with Penrose. Its awesome

[@juanjosegomezcorodoba8673]

God, Roger is brilliant! feel so humbled listening to him talk

[@ashmitasarkar1704]

I would say Brian Greene made this interview with sir Roger Penrose more impressive. Kudos for pointing out "all that matters" in his research.

[@rubenanthonymartinez7034]

*FOR NATURE ABHORS BLACK HOLES* Black hole cannot exist for if you try to force fermions together, eventually the principle of tunneling will take effect which would not allow the particles of matter to concentrate, the particles will escape the confinement with infinite energy if necessary, it is the law of nature and it will not be violated. This is just one aspect of quantum mechanics that defies general relativity, which astrophysicists are trying to hide to protect their precious cottage industry of black holes cosmology.

[@HarryNicNicholas]

i read somewhere that intelligence is being able to make connections, and the most awesome thing about mr penrose is this predisposition to meddle in other people's business, and thank goodness. without doubt of all my heroes the tops. if only we all had parents and siblings who were interested in the sciences. i got lumbered with spiritualists.

[@espaciohexadimencionalsern3668]

Today science is about same thing welcome to the club subreligios one.

[@michadavi6102]

I did also. It did not stop me. Swanley, Kent, UK

[@stephenbrown40]

I found that amazing, conformal geometry. Makes a lot of sense , Sir Penrose deserves the recognition.

[@henrikamundsen7329]

Dear Mr. Green, your entity expresses such a unique form and rare specter in the art of communication so I have come to deeply appreciate your appearances discussing the different Universal mysteries and secrets. On the subjects You show respect and you are genuine. Your intellectual engages. Thank you for the time you take to share. A

[@Josesdad]

Thanks for bringing physics to those of stuck at home,. I listen to WSF/WSU discussion every single day. The presentations have enriched our knowledge at a time we need rational thinking in our lives. With much gratitude, thanks again.

[@tortysoft]

It is a deep privilege to be able to see these great brains in action ! It is a major delight that I can convince myself that I understand some of it !

[@Atmanyatri]

Thank you very much dr Greene for doing this, really appreciate the content so much , I can’t thank you enough

[@uzairhaider89]

I just feel lucky and honoured for being able to listen to Sir Roger Penrose in my lifetime. I literally had a smile on my face throughout the whole conversation.

[@rubenanthonymartinez7034]

Do you actually believe that matter can be concentrated to a infinite point with zero volume and infinite density and temperature which has been dubbed a singularity? Do you realize that this conception violates every known law of physics, quantum physics contradicts it! Penrose himself acknowledges it, but he continues with his hypothesis, selling it as a reality. This black hole business is the biggest frauds in the history of science.

[@uzairhaider89]

@@rubenanthonymartinez7034 yes i do believe that, my friend that's how science works. You wonder which none can and venture where none have.

[@rubenanthonymartinez7034]

@@uzairhaider89 therefore your belief is incomplete for Singularity, which is the foundation of a black hole has a problem, a long-standing weak point in the theory of general relativity. Most scholars assume that the solution for this singularity consists in quantum mechanics. However, waiting for quantum gravity theory to be completed to solve the singularity problem in a black hole is wrong. Even Einstein had doubts on this Singularity business.

[@rubenanthonymartinez7034]

@@uzairhaider89 you must mean; " to venture where none have been", it sounds like Star trek or the twilight zone! Here is another one, "Imagination without facts is fantasy".

[@uzairhaider89]

@@rubenanthonymartinez7034 my answer was self-explanatory. I didn't say my belief is incomplete. It is firm, consistent, and backed by Science. Quantum mechanics and String theory (with its multiple dimensions) take us closer to understanding the phenomenon. We are still limited in our knowledge and means, and we are constantly trying to evolve and venture beyond. I hope you understand my point.

[@pilotactor777]

Love the synchronicity of you and Rodger relating to exam times. ...Nice you allow your students unlimited time to find solutions regardless of how slow they are.

[@evandallmann4217]

Good job on the interview Greene. Don’t be too hard on yourself about Penrose not liking string. He enjoys the cowbell. MORE COW 🐮 BELL🔔

[@kamilborkowski1237]

Sir Penrose, you have truly beautiful mind, let the stars guide you towards the anwser

[@mizzz_tigerjones444]

I love these streams where we’re just chilling with Brian by the bay window❤

[@Alvtec870]

Dr Greene is not only a great physicist, an excellent teacher but seems to be a very humble person, paying deference to the Great man himself ie Sir Roger. What a difference between this interview and the interview Krause did of Sir Roger. Krause was busy doing all the talking instead of giving Sir Roger the space to talk.

[@haidarsheikhahmadi7679]

We always learn a lot from you Sir Roger Penrose. Thank you for all your lifetime efforts.

[@andygrimes2479]

❤

[@miamor7602]

Hey I am in NJ! I just saw this but i would have loved to watch at 9am lol. Thanks for these amazing videos 🙌🏼

[@renupathak4442]

I am in india and grateful for technology that we can hear this phenomenal man and also you Dr Green. God bless

[@NVIK5]

He was 89-90 at the time of this interview. The intellect and mental sharpness is incredible!

[@sylvia855]

Thank you so much for this wonderful conversation. It felt extra special. Seeing the snow on the ground and the bare tree behind you Professor Greene is a perfect coda to this year's live streaming. Best wishes for the new year.

[@mandlamnisi3816]

Mandla From South Africa. I enjoyed this talk.

[@timjones1815]

Absolutely brilliant to see you together with Sir Roger. It doesn't get any better! Fascinating. Thank you for these wonderful sessions.

[@user-ql3oc4bu1m]

Yes these interviews are entertaining and informative but from a historical perspective they are priceless. Reading about theories is great. Hearing from the giants in the field directly about how they came to the theory is pure gold. Well done professor

[@2010sunshine]

What a privilege to watch this video of a humble Nobel laureate.. Thanks, Brian Greene 🙏

[@mariat.lymberis6985]

Grateful to be able to watch such Minds at work with such humanity Thank you Brian Greene AMAZING...

[@kentjensen4504]

Great conversation. With two great guys.

[@shirinteymoortashloo2057]

Thank you dear Professor Greene for giving us the opportunity to see and hear from the bests around the world.

[@JoeyCbr]

This is one of the best channels on the internet

[@bedrobnf6861]

A sincere thanks for making this content free. Thank you so much. 🖤

[@robertasergio6391]

Sardinia, Italy. Thank you for this amazing opportunity. Very grateful

[@JohnDlugosz]

I got to attend one of his lectures in person once, and even asked a question and talked with him. His lectures, with his hand-drawn layered slides, are great.

[@rubenanthonymartinez7034]

I would love to ask a question, like how can you have infinite temperature in the singularity which has zero volume?

[@rubenanthonymartinez7034]

@@Gru39 you seem to be familiar with this subject. I'll ask you; how can you have infinite temperature in a zero volume environment?

[@rubenanthonymartinez7034]

@@Gru39 a load of gibberish!

[@rubenanthonymartinez7034]

@@Gru39 infinity ? don't bother. For Einstein was correct, when he said "Two things are infinite: the universe and human stupidity; and I'm not sure about the universe."

[@markwood1705]

Watched the replay from the UK. Thanks for the upload

[@thorntontarr2894]

Dr. Penrose is such a clear, clever thinker packaged in a very unpretentious personality. Now with the recognition that the Nobel Prize affords, I suspect he will be even more humble. No wonder he is a real hero in Physics for me. Dr Greene's questions are quite deep yet respectful; this interview is one of the very few that does not have the interviewer interview the interviewer. Well done , Dr. Greene.

[@Thedudeabides803]

Brian is so gracious interviewing someone pissing on his life’s work. Love them both.

[@bjorntorlarsson]

Well, one won the Prize. The other is who?

[@Thedudeabides803]

@@bjorntorlarssonI'd say one of the best presenters ever to captivate an audience on science, but like him what do I know?

[@leesorenson356]

Thank you Professor Brian Greene for communicating these subjects in layman's terms so that we can all understand the Universe we are all a part of. 🙂 👏 ✌ ❤

[@EricaFiore]

I worked all this out this my self, posted on youtube then I hear you Penrose suddenly worked all this out. I am so dubious of you Penrose.

[@Dr.CandanEsin]

It would be wonderful, if by chance, Sir Penrose's talk is subtitled. His mind still works in full throttle and sometimes it is hard to catch his emphasis as he goes through quick on these subjects. As a non-native English speaker I stumble there. This is a great opportunity to witness the focal points in modern science. Thank you heartily.

[@chickenfriedrice1980]

if you have a premium account, you can get subtitles by clicking on the 'cc' button.

[@Lucky86_]

@@chickenfriedrice1980 A premium account isn't necessary I think. I can click the subtitle button and I don't have premium.

[@AliceYobby]

@@Lucky86_ premium gives u more accurate subtitles sometimes in my experience. It's strange. I've tested it by watching the same video with subtitles on and off premium and the difference in quality is definitely sometimes there and noticable but have no idea what's going on behind the scenes

[@brendawilliams8062]

I believe his mind does work excellent. He has away of talking about very difficult math humbly. He is a cherished teacher.

[@Dr.CandanEsin]

@@chickenfriedrice1980 Thank you for kind info. I think I've mistaken as I was watching live session. There cc was not available.

[@brothermine2292]

Great interview. And it was nice hearing again about John Wheeler's work at Princeton on General Relativity. My brother was one of Wheeler's PhD students at Princeton and did some of the early work on black hole collisions... calculating the gravity waves emitted in the simplest case: two identical non-spinning black holes colliding directly into each other.

[@lorrainehawke7074]

THID IS VERY SPECIAL BY ROGER PENROSE THE NEW PHYSICS SO NOW HOW LONG FOR SCIENCE TO HAVE SUPERSYMMETRY PARTICLES AND ACCEPT THE MIRROR IMAGE ANTIPARTICLE UNIVERSE AND FIND DARK ENERGY +DARK MATTER WAVE PARTICLE IS ANTISYMMETRIC

[@lorrainehawke7074]

This is very Special by Roger Penrose The New Physics how LONG NOW to Science to accept Supersymmetry particles to be real and existence of a hidden Valley a Parrellel world made of Dark Matter +little in common that we know will find Dark Energy +DARK MATTER The Wave Function is Antisymmetric.

[@josephleblanc8852]

It’s so refreshing having such a prominent mind that isn't afraid to step on the toes of theoretical physicists who have wasted careers on String Theory. Penrose, despite his advanced age, isn’t stuck in dead end 90’s theories.

[@covey-hc9my]

This series is great. I usually listen when I go to bed. Get at least over an hour of education and Brian style is fun also.. educational and fun, what's not to like. Thanks Brian. From a physics rookie

[@rickcoyne7845]

Another Great session. Thank you Brian and Roger !!!!!!!!!! Fantastic subjects.

[@rubenanthonymartinez7034]

Brian's work may have some benefits in the future, but Roger Penrose work is pure hogwash!

[@hoang-anandynguyen336]

Awesome to be able to listen a conversation like this. And Brian Greene is such a great person to facilitate discussions. Edit for Timestamps: 02:09:15 Problems with Quantum Mechanics 02:29:12 Gödel's Theorem

[@xuanhua7982]

should do it again with Sir Penrose! wonderful conversation!

[@blogtwot]

Months behind the curve here but great to see Brian's interview technique here. For such a normally good talker he spent an awful lot of time listening which was perfect.

[@bradleyclutton4564]

My two favourite people, At last together, thank you.

[@60-second-HACKS]

This is holding up my preparation of MBA Lectures ... which suddenly seem horribly frivolous.

[@Unkl_Bob]

I love listening to the incredible insights from Sir Codger Penrose

[@robbolton6004]

Thank you for bringing the wonderful world of science to our lives. Sir Roger Penrose continues to be a light in our journey into the unknown.

[@forogafold]

Thanks to digital technology, I'm watching not only from a different location and time zone on this planet but in a different time in the future to the past when this was recorded. It's a pleasure to hear expressions of inquisitive minds. Thanks!

[@vvanderer]

Greetings from your future. BTW things still look the same

[@wonseoklee80]

Congrats to Sir Roger Penrose for his Nobel prize!

[@TheEnigmaUniverse-vt2pm]

Does anyone feel like me that the reading voice is very soothing and it makes me fall asleep very quickly even though there are many new things I need to hear and learn?

[@susmit205]

Wow.... I'm grateful to the World Science Festival team :) Thank you....