Brian Greene and Adam Riess: The Accelerating Universe

Nobel Laureate and physicist Adam Riess and Brian Greene discuss the paradigm-shattering discovery that the expansion of the universe is accelerating, the role of dark energy, and more.
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

[@smoogems]

Uncle Brian's bedtime stories are the best.

[@dhruvrajkavi8334]

They're good

[@godless-clump-of-cells]

I always end up waking up to them somehow.

[@Samael-Metzger]

Simply admirable for Brian Greene to give of himself for such a worthwhile program. Much appreciation and my greatest respect.

[@chrisbennett6260]

brian green .consciousness is an illusion ,that being the case so are his theories ,and believes must be equally illusory

[@walshamite]

@@chrisbennett6260 The nature of consciousness may be other than it "feels" to us, but that us not to say it's an illusion (in the sense we generally use that term) ... consciousness appears to be a generated reality of the brain (mind) that is partly created by the senses, but exists even in those born deaf and blind, and it apparently ends when we die, but hey, who knows? The idea that consciousness is a wider function of matter and the universe is not disproved.

[@chrisbennett6260]

@@walshamite Brian Green is full of it and i mean full of it if its an illusion so are his danm beliefs and conceptions also Green or you can say what the hell you want whatever man

[@ricardodelzealandia6290]

Every time I see Brian with this background, I want to go and live out in the country.

[@dustman96]

I keep looking at the background, it's beautiful. Is that a green screen?

[@ccarson]

@@dustman96 In early Q & As it's the real view outside his 'barn' window. But I think since he has started to use video illustrations he is using a green screen.

[@Rajansippy1]

It's green screen with terrible video editing

[@timewalker6654]

@@dustman96 used to be real, but its green-screen since last two live sessions.

[@HowardBaileyMusic]

@@timewalker6654 He doesn't want us to see his barn that's in desperate need of a pressure wash LOL (the REAL Green screen)

[@millennialfalcon1547]

Dr. Greene, it's so refreshing to hear you speak openly and authentically about the limitations, inconsistencies, and current problems with the standard model of cosmology. It does not mean you're against the same standard model. It means you're upholding to true Spirit of scientific inquiry and culture which must never be afraid to ask the hard uncomfortable questions and admit where and when we do not know the answers. I happen to think that this lack of openness is precisely what has alienated the popular culture from modern scientific theory.

[@floatingshoppinglist5193]

I'm glad to express myself as a musician during this current tine period of pain and suffering with a pinch of curiosity. Peace and Love to EVERYONE ❤☮

[@RobLarkins]

What a compelling guest and some fantastic questions. This ep was so good!

[@stephenjones796]

Dr. Greene, just a great 3 hours. Dialogue with Adam Reiss was education as well as a great mind exercise. You are so very VALUABLE to many many for some sanity and reality and it’s beauty and shortcomings. Thanks again

[@jonathaneves5847]

Hi Brian. Greetings from Liverpool 🇬🇧. Fascinating show as usual. How little we know! ✌️🐝 Now back to your show.

[@RobLarkins]

I watch live every chance I can which isn’t as often as I might like, but I’ve never missed an episode. I usually watch each ep at least 5 times. Some even more.

[@richardavery2807]

Thank you for string theory as well...

[@IndranilBiswas_]

Brian Greene is such a good educator and man of science.

[@IndranilBiswas_]

Any more conversations with Sean Carroll? And can you have one with Elon Musk!!!! TY.

[@jdperson7922]

I'd read your novel in a heartbeat. In fact, I'd be up for a series!

[@5nwCr45h]

There are no words for what you are doing here. This is an exceptional interview and discussion on consciousness and love. Please introduce a full 'soup-to-nuts' World Science U course on Quantum Mechanics! It would represent your magnum opus for the inspiration it will provide for future Newton's and Einstein's and the advancement of science, mathematics, and humankind. There are no words for what you have and are providing here-effectively real-time discussions with Einstein and Newton . And yes, turn "Icarus at the Edge of Time" into a 'full-fledged book' and learning website!

[@stjut]

Enjoyed watching the recording. So interesting and enlightening. Thank's Stu.

[@infinitel00p94]

LOVE your book Brian! please keep doing these podcasts

[@rubhan94]

I like watching livestreams as I come by them. The time zone difference makes it hard to catch livestreams in America, but sometimes I just prefer watching them later. I really enjoyed this video btw!

[@center__mass]

Brian sharing his time is the one thing I miss about covid

[@isonlynameleft]

I love this channel but KZbin wants me to listen to this same episode five times a week!

[@joshfredr7846]

Dr. Brain Greene is such an interesting and fascinating speaker. I love listening to anything he has to say.

[@heatherj5033]

Filling my mind full of knowledge that I can't even comprehend! Totally wish my mind worked like this! Fascinating!

[@grantf6687]

Don't worry he doesn't comprehend what he's saying either. It's all a part of the materialist act. He has no idea how anything in reality works at all and is very confused. Facts The things he's talking about don't need to be comprehended most of the time. And when they do it's only because he's so far from the truth. This is why science is become like a religion. Following fools liek this guy who thinks he's smart. Without consciousness your intelligence can go in the toilet as far as im concerned.

[@tadeth]

It’s good to listen to a legendary person of honor who lived through Albert Einstein, and mentored his scientific achievements as a student of geniuses such as Paul Dirac. Amazing!!

[@marylunney3483]

Brian Green: Fab as always in his flexible creative and respectful discourse and his inspiration to others

[@dwayneduval6785]

This episode was great.

[@Necrozene]

I am very pleased that I reserved time to come back to Brian Greene. I was on a Susskind/Penrose trip for years, now this is delightful after-dinner conversation. Loving it fully.

[@kagannasuhbeyoglu]

Thanks a lot WSF + WSU :) Great video👍

[@MrRatboy69]

Thanks for all you do!

[@pinataparty]

Best channel ever!?! great vid!

[@miguelfuentes6956]

Hi Brian, Miguel again, from Puebla :D Happy to see you again!!

[@silvershadow013]

I'm hoping the new time slot will be later in the day or a weekend only because I will be going back to work during the day. I do watch afterward if I miss it, but really enjoy the live sessions. Be well.

[@jessicaknapp1211]

Brian Greene I am ridiculously late finding this awesome video of yours, but id absolutely read that possible future, (maybe current?) book of yours. sounds amazing! Thanks so much for all the enlightening amazing info you have shared.

[@RealDonfromBroward]

Truly appreciate this video. All of it. Thanks.

[@glennh8185]

i just saw this now and its made me really think. keep it up dr greene

[@johnp1]

Dr. Greene, thanks again for a great session. Answering your questions: It's a good idea to have a guess from time to time. I'd love to see a full course on quantum mechanics. Live session on Thursdays is good.

[@JamesEIvoryIII]

My “guess” is that your idea would enhance what is a baseline, wonderful experience. I think that Brian is a fantastic host, adding a guest, in my view, is a force multiplier- fantastic^2 🥂😎🤵🙇‍♂️ 0030 hr.s CST Regards, -J

[@JamesEIvoryIII]

@@Bibibosh 🤣 (a sandwich 🥪 in Planck-time at a Planck-length upon the Wavefunction collapse lest the potential banana split emerges, adding to my newly emerging corpulence).😂😉🐬

[@grantf6687]

I'd LOVE to have a debate with him on quantum anything.

[@grantf6687]

@@Bibibosh well it's not but you can't have morons trying descrive how reality works and the universe, when they really have no fucking idea wahtsoever and just pulling shit out their ass. Consciousness is only understood from a spiritual persons experience.

[@ronaldgreene5733]

Should chemistry be denied in the ready conversion of H1 to H2 merely because H2 is difficult to detect in any direct manner in space? A paper by Canadian astronomer Paul Marmet essentially collapsed the "Big Bang" back in 1990 as he theorized the existence of intergalactic and interstellar matter as the cause of redshift rather than a doppler effect -- and accounting for anomalies much more effectively, before the discovery of the abundance of H2 throughout space, though primarily ignored by the necessities of money and career support. An abundance of H2 throughout space in a gradient that will extend to meet that of our galactic neighbor, will also account for the gravitational anomaly where the outer arms of our galaxy rotate at nearly the same rate as the central region. Quantum physics is great, dare I say so before I have dived into the math. However math hasn't actually proven the existence of dark matter, no matter how sophisticated the math is or can be. Circular reasoning isn't somehow justified if you add decades of career building and funding requirements and the consensus building that takes place over time that takes on more precedence than any math in support . . A much greater quantity of H2 in the presence of H1 is the natural result if we acknowledge basic chemistry, exceeding the mass of the visible component of the universe and which must be ignored to maintain control over the narrative and our inability to think and take a risk without group oriented behavior and identification in support.

[@keithmcgarrigle2653]

With the Hubble telescopes data for the most red shifted Galaxies in the Nineties, and comparing the red shifted data now. The difference in the results would prove rate of expansion?

[@mikaelkaris9273]

Im just average joe from Finland 🇫🇮. 53 years, I am in methadone treatment cause I m addict. I shouldn't understand anything about fysics, cause I have heavy machinery education behind me from years 1986-1988. I am ok mechanic, but I have constant thirst for knowledge. And as Finnish, English is my third language, so one more curveball to me learning from your lectures. But I do learn, amazing. Thank you Brian for bringing science to ordinary people and explaining things ,,,,hhm,, the way they are easiest to understand even someone who is not fysisist. About your math formulas I dont understand anything, but in many levels I learn a lot. Thanks also for WSF, that way anybody can learn lot if only one wants to. For my part, I live in Finland and we have great education system, and over all we are at age 15 same level than US students at age 17-18, Thanks mr Green for everything you have done to science. Mikael from Finland 🇫🇮

[@johnjobs3027]

Many thanks to you Dr Greene and your colleagues for your time and passion . 👍🇨🇦

[@sirvapalot]

you may be a mere mortal Brian but i appreciate your mission to educate the public about science, i may have trouble understanding some of what you talk about, but i really enjoy science content on youtube.

[@grantf6687]

the only reason you cant understand things he says is because he doesnt understand and he's WRONG, and he's just using words to sound intelligent and all of you must be fools to think he's wise. Wisdom is exactly what he's lacking.

[@bikashthapa7316]

always love to hear from you

[@nicholasperry2380]

£ years on and at 1M views so yeah, I think it's well worth your time in the long run. I've just ordered your book too. Thanks to you both for taking the time to share your knowledge. I can't imagine how much your time is worth but I am truly grateful. Thank You.

[@aseshbasu4816]

Brian Greene is EVERGREEN!

[@candidobertetti27]

Loved it. Specially the q/a solo part, you're such a brilliant man. Thank you Brian.

[@lindaocean6858]

lovely discussion thank you

[@colbynye5995]

This was fantastic! Thank you both for sharing!

[@1teaseup]

I've so enjoyed. Relevant especially when it's needed most by individuals.

[@terrabusinessLLC]

Brian...I definitely would read your book for children. And here is a twist regarding Tachyons.... I am thinking about this scenario since I was a little child myself.... Decades ago... Here it is You receive the result of "having" fired your tachyon gun ON YOUR OTHER HAND and THEN CHANGE YOUR MIND...... AND DON'T PULL THE TRIGGER.... VOIALA....A PARADOX... LOVE YOUR TEACHINGS

[@StaticBlaster]

I hope Dr. Greene is writing another book. I would definitely read it.

[@JamesEscobar]

Dr. Greene thank you so much for spending time creating and contributing content like this! Your channel is amazing!! And life changing!

[@waynefarley87]

Dr. Greene, just a great 3 hours. Dialogue with Adam Reiss was education as well as a great mind exercise. You are so very VALUABLE to many many for some sanity and reality and it’s beauty and shortcomings. Thanks again

[@user-hy3fo2tk3f]

Interesting to have the fortitude to stick with it at the time, congratulations!

[@georgiasmyrniou6337]

Please do books for middle school. My students seem not to understand theories explained in the current ones about quantum physics . Hope you do 😊

[@dr.lairdwhitehillsfunwitha67]

Thanks. Very interesting. And useful. If only I was teaching a live class now.

[@espaciohexadimencionalsern3668]

with all the experience you have is never to late to teach the world live via internet.

[@viewer3091]

Thanks Brian.

[@RayRay-ex9gc]

Northern Kentucky ! Green for president 2020 !

[@sherrymanning1116]

I agree

[@ricktaylor7648]

Yes...that book would be cool for kids and adults

[@SunTzu_0]

i fell asleep watching a gaming video woke up at 5am learning about the universe and dark energy best sleep of my life 10/10

[@chrisbronow3292]

It was cool to wake up to this

[@RichardFranksricktheslickster]

Hello Mr. Green, I just wanted to comment on how cool this is to be able to share time with a great particle physicist (I think that is your field of study) such as yourself. I would have never thought I could get so close to you to where it would be possible you may answer I question I may have. Thank you for your time and effort.

[@murlidharkhatkale5208]

Ira is

[@QuaaludeCharlie]

The bible says nothing about movement because the Earth doesn't move, revolve or rotate. It's perfectly still. We inhabit a motionless realm covered by an impenetrable dome. We use gas pressure to debunk space that directly represents the heliocentric model. Space is a direct violation of the 2nd law of thermodynamics. Using science to disprove the heliocentric model is the best way to get people to learn the truth.

[@callumprewer9574]

​@murlidharkhatkale5208

[@ronaldgreene5733]

Should chemistry be denied in the ready conversion of H1 to H2 merely because H2 is difficult to detect in any direct manner in space? A paper by Canadian astronomer Paul Marmet essentially collapsed the "Big Bang" back in 1990 as he theorized the existence of intergalactic and interstellar matter as the cause of redshift rather than a doppler effect -- and accounting for anomalies much more effectively, before the discovery of the abundance of H2 throughout space, though primarily ignored by the necessities of money and career support. An abundance of H2 throughout space in a gradient that will extend to meet that of our galactic neighbor, will also account for the gravitational anomaly where the outer arms of our galaxy rotate at nearly the same rate as the central region. Quantum physics is great, dare I say so before I have dived into the math. However math hasn't actually proven the existence of dark matter, no matter how sophisticated the math is or can be. Circular reasoning isn't somehow justified if you add decades of career building and funding requirements and the consensus building that takes place over time that takes on more precedence than any math in support . . A much greater quantity of H2 in the presence of H1 is the natural result if we acknowledge basic chemistry, exceeding the mass of the visible component of the universe and which must be ignored to maintain control over the narrative and our inability to think and take a risk without group oriented behavior and identification in support.

[@triminh3649]

love is a bond of connection to help us survice with each other

[@oneshot2028]

1:45:56 - Great point. Thanks for telling this. This is one of the most misunderstood things in physics. Most people think observer means a sentient being.

[@user-bv8ts9go4f]

thank you

[@brettonwoodsvsbtc1217]

Wow fresh air. I just come off a pod cast from Dr Albert where the Dr talked around the issue never arriving at a cemented view or opinion. This feels like fresh air in comparison and thank you to you both for entertaining concise content that is easy listening informative and explanatory. Loved listening to this content. More please more

[@realeyesrealizereallies6828]

Dr Albert was more in line with reality, we are children, and have a long way to go before arriving at any worthy cemented views or opinions...

[@dusteye1616]

KZbin loves this Guy. Stop playing this for me please, what more than disliking it can I do to stop KZbin from auto playing this

[@mylittleelectron6606]

I love science and do it everyday. Brian Greene is a National Treasure. Hopefully Adam Reese didn't get completely sucked into that black hole!

[@Getsmore]

One of the few that still believe old world sciences. God boy for thinking the way the government trained you to live your life. 👍👍👍👍

[@dntdenyitcolombia6910]

So informative wisdom is music to my ears. Thank you so much for this enrichment

[@grantf6687]

LOL. yeah no Off to church for you

[@IndranilBiswas_]

We were all given our Newton moment - what a great reference! This is the 3rd time I am watching this video!

[@Blackbird58]

All dogs would be really keen on finding out everything about Schrodingers eqations-they love the speculation about whether or not the cat gets iced.

[@garytoller9423]

Belatedly found and enjoyed these 3 hours. Question!- Did the annihilation of matter and antimatter have any significant affect on the properties of the early universe?

[@kusumkantasaxena5440]

What an enlightening session.i am so much fascinated by the enigmatic cosmos . Basically i am a chemist getting interest in the physical and philosophi cal aspects of matter in the universe.thanks for this q/a session

[@SomeMadRandomPerson]

This dream has been seen over 962k and it's now December 18, 2023 😱 superb 👌🏻

[@user-bv8ts9go4f]

yes thank you

[@Shalomjoyyy]

I’ve tested the Mpemba effect on water a few times. It always holds up. Very interesting.

[@aminkanji8501]

Enjoyed it

[@sherrymanning1116]

Your so smart ty listen to you it is so helpful to keep my mind from freaking out I have stupid mental diseases thank you so much

[@jurisbogdanovs1]

Hey, Professor Green! I have written a book about Vacuum or how to prove that there is no such thing as Matter-free area anywhere in existence and it is impossible to start with. Vacuum turns out to be the most important question in Cosmology, as it affects our understanding of Light and Magnetism and Gravity... And yes, this topic was rejected by your journal Annals of Physics. No worries, I gave reference about it in my book. The title of the book is - The True Essence of Vacuum. In this book I also prove that Time Dilation is pseudo science and General Relativity itself has been ignored when considering it... Then I published another book. It is about all problems with Redshift and Doppler's Shift. And this too was rejected by your journal. I prove in this book that Doppler's Shift has never been reliably tested, if we speak about truly reliable tests. And it might be that Redshift is caused by a distance from the object and not from its velocity of moving away from the observer. That will kill expansion of the Universe, Big Bang theory, Dark Energy ideas etc... Title of this book is - Redshift, Nature of Light, Dark Energy. And yesterday I finished the book titled - Hollow Earth Theory Told as Never Before. In it i explain how hollow earth is possible according to existing laws of physics and experiments prove that it is possible in theory. Also, I look at what are legends about the hollow earth and what interesting facts these stories tell...

[@foxjerseycol4433]

Hi, you have my attention. I ask if you may send me a free book ?

[@jurisbogdanovs1]

@@foxjerseycol4433 Sorry, have no means to send free stuff to people right now. Kindle versions cost 3 gbp or around 5 or 6 dollars anyway. And I don't send word or pdf formats as then the book ends up for free all over the place.

[@jurisbogdanovs1]

@Ethernos Grace It is true and it will be proven. Relax.

[@jurisbogdanovs1]

@@foxjerseycol4433 All right! I decided to share one of my books with the world fro free. It is about the True Essence of Vacuum. Do you still want it? I only will need to do some light changes to it and it will take at least a week as I am working right now. If you want it, we will have to figure out how to send it to you.

[@jurisbogdanovs1]

@Ethernos Grace Would you also want my book about the True Essence of Vacuum?

[@vazap8662]

The discussion was fantastic, as wella as your Q/A. Thank you!!!

[@Mrcatcherye]

His hair is like an electron. In multiple positions at any one time

[@Scorp7867]

Lmao

[@kvstw]

adam riess and his amazing disappearing hair!!

[@viewer3091]

Its a Wave until you observe it ! ! LOL

[@rohit-xr4fc]

@@Scorp7867 to po for a girl o o o o o l l l p o o o n p i o o o l o o o o o p o o p o o l o l o o o o o l l p i oooooooooo9ooooo9oooooo9

[@ronaldgreene5733]

Should chemistry be denied in the ready conversion of H1 to H2 merely because H2 is difficult to detect in any direct manner in space? A paper by Canadian astronomer Paul Marmet essentially collapsed the "Big Bang" back in 1990 as he theorized the existence of intergalactic and interstellar matter as the cause of redshift rather than a doppler effect -- and accounting for anomalies much more effectively, before the discovery of the abundance of H2 throughout space, though primarily ignored by the necessities of money and career support. An abundance of H2 throughout space in a gradient that will extend to meet that of our galactic neighbor, will also account for the gravitational anomaly where the outer arms of our galaxy rotate at nearly the same rate as the central region. Quantum physics is great, dare I say so before I have dived into the math. However math hasn't actually proven the existence of dark matter, no matter how sophisticated the math is or can be. Circular reasoning isn't somehow justified if you add decades of career building and funding requirements and the consensus building that takes place over time that takes on more precedence than any math in support . . A much greater quantity of H2 in the presence of H1 is the natural result if we acknowledge basic chemistry, exceeding the mass of the visible component of the universe and which must be ignored to maintain control over the narrative and our inability to think and take a risk without group oriented behavior and identification in support .

[@JTWHITE2]

Simply. Brian Thank you. Orl.Fl. 10 1 22.

[@juanito4371]

A wide perspective, very broad so us as a youth should go explore that shi

[@aseshbasu4816]

After Carl Sagan, I find Prof Greene to be the "easiest" and most engaging to listen to.

[@yaserthe1]

He is even better, as Sagan was more of a populariser, Brian is actually a professor of maths and physics, so is waaaaaaay more qualified than Sagan.

[@adumberfling9959]

@@yaserthe1 so you can't think listening to someone is easier if their not as "qualified" as someone else? I enjoy Sir David Attenborough more then Steve Erwin but he had a zoo so that make him more qualified to talk about animals and their habitats? Making my opinion wrong? And Sagan is just as qualified as anyone if not more who else has their work flying to another star and could potentially be our first and only physical thing to find someone out there telling them we existed and they're not alone. That's pretty freaking important and not just some dude that popularized stuff would get to do ya would have to be a little qualified to get NASA to trust your abilities. Don't ya think? Or you can just have fun being the opinion police 😜✌️

[@markheller197]

I’m

[@rsk5197]

@@adumberfling9959 you need to put a picture of yourself on your profile. But keep the name because it definitely fits

[@adumberfling9959]

@@rsk5197 ha I know right you should put your mom's pic and her address on yours

[@katiekat4457]

I didn't hear your dog barking when you said he was but I think it's so cute when he's running around outside in the yard behind you. I didn't see your dog today but I think it was your last video that I saw him. Could even have been an earlier video than that.

[@rozbrkit4985]

REGARDING your camera focus issue: a simple tip would be to do this before you begin:> You set the focus of the camera to a point behind you by a foot or so or in this case in your video here, to the winow frame behind you, this ought to bring everything in front of that focus point into focus that will/should look clear at all times. if you have focused the camera at a focus point that is in front of you, or even your chair, you may find you will move in or out of focus. this is a basic rule with video cameras, especially in interview settings. therefore allowing for full gesturing & Fidgiting to stay in focus. This minimal preperation is something you should check everytime you sit to record and transmit live or record streams. Now chances are you already found this "Tip" out since this broadcast? As i stumbled upon this live stream two years after you posted it on you tube, which by the way was excellent. if not i wonder if you will find this info i offer. do you have notifications active on your old broadcasts? eitherway i will probably never know. n'er mind. hope you figure it out, or you've been told already.

[@heihat1224]

i am not in school nor am I a mathematician and to be honest Im mathematically retarted but never the less i enjoy these videos greatly

[@Seekthetruth3000]

Like virtual particles, Mr. Reiss's hair comes into existence and then goes back into non-existence. Great conversation.

[@HansRonnyLorentzen]

Maybe augmented hair might be a solution on the problems with the software that keep adjusting the real hair. Maybe they might even try augmented punk hair, which would look cool on both tbh :)

[@debbiericker8223]

I came looking for just such a post. That hair thing is fa-reeeaky looking.

[@ronaldgreene5733]

Should chemistry be denied in the ready conversion of H1 to H2 merely because H2 is difficult to detect in any direct manner in space? A paper by Canadian astronomer Paul Marmet essentially collapsed the "Big Bang" back in 1990 as he theorized the existence of intergalactic and interstellar matter as the cause of redshift rather than a doppler effect -- and accounting for anomalies much more effectively, before the discovery of the abundance of H2 throughout space, though primarily ignored by the necessities of money and career support. An abundance of H2 throughout space in a gradient that will extend to meet that of our galactic neighbor, will also account for the gravitational anomaly where the outer arms of our galaxy rotate at nearly the same rate as the central region. Quantum physics is great, dare I say so before I have dived into the math. However math hasn't actually proven the existence of dark matter, no matter how sophisticated the math is or can be. Circular reasoning isn't somehow justified if you add decades of career building and funding requirements and the consensus building that takes place over time that takes on more precedence than any math in support . . A much greater quantity of H2 in the presence of H1 is the natural result if we acknowledge basic chemistry, exceeding the mass of the visible component of the universe and which must be ignored to maintain control over the narrative and our inability to think and take a risk without group oriented behavior and identification in support.

[@AshleyWilliams-lx4mp]

I listen to everything Dr Greene has to say but it all ways becomes blatantly apparent that I am indeed still a chimp... just another level of intelligence, keep up the awesome work doc.

[@stephenjones796]

Would be very interested in any sci-fi /sci-fact publication you put forward ! Thanks Professor.

[@SocioecologicalInterdependance]

We tested this with repeatable results. One of the best postulates is that the further the differential, the faster the race to equilibrium. There is a goldlocks temperature where water freezes faster is it begins above ambient. To get things to move quanta or change states, it takes a fair amount of energy (or differential) if already in turbulent, high differential and dynamical, it is already in a state of transition. Fun experiment! Another couple fun ones we played with as high arctic weather scientists was supercooling (this can actually be done down to -60s where water nucleates on its own molecular lettuce!), making stratus clouds from just a kettle of boiling water rapidly exposed to

[@mikechaisson9875]

Wow! I really love your view/explanation on the Boltzmann brain. Brian Green you rock! Thank you very much for all your precious time.

[@christopherparsons7038]

Mr. Greene. There are so many items (videos) with you in them and bringing us some of the best discussions and thoughts. Thank you. I wonder if the acceleration of the universe has stopped and we're just catching up with it. I wonder if it stopped at the speed of light. I know that suggests a boundary. But the fastest particle we have is a photon. The (accelerating/accelerated) universe must play some role in that speed. As it does now to suggest a better description of 'gravity, in that the expansion of the universe is playing a part _in_ the (new) theory of gravity. If there is no other particle faster than the photon would that not suggest a limit to the acceleration and if that then at some point a _halt_.

[@CFLsurfr]

5:00 Yes, I've always wondered why hot water freezes faster than cold - and also - why when two negative numbers multiplied together equal positive. If multiplication is short hand for addition, and we simply added the negative numbers, that wouldn't be true...so what gives?

[@GRUMIAM]

Think harder if you have -3 times -3...... Of course it is plus

[@GRUMIAM]

Multiplication with plus numbers is addition but if you have -3 times -3 you are not adding to the minus number....

[@GRUMIAM]

3 x -3 = -9 Adding.... -3 x -3 is not adding for minus

[@elidadia]

perfect question right there 42 min

[@nulfire]

Greetings from Cape Town

[@kaliy5975]

I enjoyed what you have siad

[@danielash1704]

Fluid Dynamics in the spaces of space is a tricky part to figure out how much the difference is between

[@carnsoaks1]

I enjoyed the comment about AR's research, how it's "revolutionary reveal" was effectively accidental. All the time, scientists are refining our understanding, improving the data set, and by doing so, open New Vistas for their colleagues to peer Into. Revealing New Truths or Reaffirm Old Ones.

[@WendyRamrattan]

Enjoying from trinidad and Tobago

[@adamhoman8302]

It never ceases to amaze me how "fairytale" like people will believe any idea other than to say their is a creator or an intelligent designer to our universe.

[@chrismadaj8751]

Yes I did love it GODSPEED ❤❤

[@michaelchangaris1632]

Yes! Lots of people would read that book.

[@hklausen]

Nice to see Adam Riess.

[@travisfitzwater8093]

i think we might benefit from focusing on the fluctuations in the density of the condensate and its gradients, out there, here, everywhere.

[@clivehoward7997]

Clive. South London