Sir Roger Penrose, Aeons before the Big Bang (Copernicus Center Lecture 2010)

The second Copernicus Center Lecture was delivered by Professor Roger Penrose, a famous physicist and philosopher of science. Professor Penrose titled his speech "Aeons before the Big Bang". Like the year before, the Copernicus Center Lecture was part of the Kraków Methodological Conference - "Physics and Philosophy", which was co-organized by the Copenicus Center for Interdisciplinary Studies.
Photos of the conference: adamwalanus.pl/penrose_k.html

[@bct1959]

My new happy place is Sir Roger's voice saying "...but don't worry too much about that."

[@sandweged]

I hope when I am an old man I'll be able to go to lectures like this and fall asleep in the first row like those guys. Seems like a good life.

[@user-xc9td3he7v]

Ohhh poor you. I feel very sorry for you. Because this man Will be recognised in the future for explaining the course of the universe. Poor you 😢

[@xd2137xdddd]

you would not see irony, even if it would kick you right in between your legs, right? @@user-xc9td3he7v

[@EloiseDecember]

I LOVE his drawings. So much more friendly than just one more powerpoint presentation.

[@M.-.D]

So incredible to see Professor Penrose win the Nobel Prize. One of the greatest minds.

[@ramchandradey4059]

Reliability does not go hand in hand with credibility always till the Quantum of scientific community raise itself to that level of understanding

[@GamingBlake2002]

The finest mind of his generation!

[@21stcenturyscots]

@@ramchandradey4059 What on earth are you even talking about?

[@branden2941]

​@@21stcenturyscots He's just upset because he really wants the universe to end permanently

[@5ty717]

Genius.

[@samvv]

I don't get all of these negative comments on this video. Guess it's just KZbin, and people like to complain. I think it's a great, accessible lecture, in which Mr. Penrose tried to explain difficult concepts in clear language. Thanks for taking the time to upload it!

[@JosephStern]

Penrose is a bit eccentric, but I don't know that I've ever seen a better explainer of complex ideas. And I absolutely love his old-fashioned hand-drawn transparencies, which I think really show his enormous love of teaching.

[@andrewhopkinson8736]

Uhmm, not so much. What is this 1975? Can he at least get an assistant to create some nice computer based images?

[@21stcenturyscots]

How on earth is he eccentric? He is the perfect textbook version of an Oxford professor.

[@japandata]

Absolutely fascinating. I've struggled for years to read and understand these concepts, and Penrose spouts them off like their his children's names. Wonderful presentation.

[@AdmiralBob]

The best part is when he puts up an illustration and the camera refuses to switch to it in preference to showing him looking down at something we will never see and point all sorts of things out.

[@KilgoreTroutAsf]

I love old-style lectures with acetate slides. Death to powerpoint!

[@preciouscartoons3424]

Only a sith deals in absolute.

[@coecovideo]

Starts at 5:26

[@jacksainthill8974]

coecovideo Thank you.

[@PurasamaMan]

You're doing God's work laddie

[@BradWatsonMiami]

"The BIG Bang-Bit Bang was a supermassive white hole - inflation/expansion of energy-matter and information 13.8 billion years ago - spawned by a supermassive black hole at the heart of a galaxy in our 'parent universe'. This duality combines general relativity’s singularities of infinite density in a ‘Cosmic Egg’ birth of this and all universes within 'The Conglomerate': multiverse without random bubble universes and parallel worlds. Our Universe exists inside the Planck density of that SBH and shares the same boundary/event horizon. That SBH-SWH phase transition was a 'quantum tunneling umbilical wormhole' with energy-matter & info transformed/transferred, although scrambled & encoded. This fractal Universe is 1-in-2 trillion+ offspring each w/ similar inherited ‘DNA’/physical constants. This ‘simple’ cause- and-effect cycle/'circle of life' - birth-life-death-transformation-rebirth - explains both infinite space and eternity. Reproduction is the simplest plan of continued existence for everything from cells to universes." - part of Seal #1 of the 7seals.blogspot.com .

[@danieljones2048]

Actually the summary of the man is not bad. If given well, it is worth so much since the man himself will not blow his own trumpet.

[@MemoryException]

Audience: Will copies of the stack be available after the presentation? Penrose: No I only drew the one.

[@rich9697]

Watching him put all that together is just fascinating, a true genius at work.

[@brendawilliams8062]

I am holding on to everything I can find on this amazing man.

[@richardhunt809]

One thing I like about this theory is that it does away with inflation, which always seemed like a bodge to me. I have Roger Penrose’s book on CCC and I’m looking forward to reading it.

[@kenllacer]

I actually prefer these types of lectures. Why are my fellow Millennials crying about the lack of PowerPoint? This is a specialized lecture for those interested in the subject.

[@JP-zl7mt]

They want power point to help them understand - na won't work either.

[@mirandansa]

To those recording/editing lectures like this: Please keep it focused on what the lecturer is showing. Cuts to the hall/audience are not only unnecessary but also distracting, especially when the subject is technical and we have to study the relevant diagrams etc.

[@impulserr]

also watching old fuckers sleep is annoying

[@stevewhite67]

Amazing.......it's only in the past decade or so that we have access to lectures of this quality. Right or wrong in his conclusion, his work is mind bending

[@bvgftr2]

Brilliant, Generous! Thank you for making this available to the rest of us! My bets are on Penrose!

[@bruinflight1]

Penrose just rocked my world... AGAIN.

[@ClayMann]

The important difference for me is that the weightlifter is engaged in a pursuit that benefits themselves. The professor and a big chunk of the rest of the world are engaged in pursuits that affect me. I don't know how to build my own PC out of raw materials, but I sure value the smart people in the chain that went into making it possible that I can benefit from all that research and work. So I'll always encourage scientific exploration, even if I can't directly see an immediate benefit.

[@whiteowl8703]

When I consider how powerful how violent how so absolutely decisive the universe is - I am just amazed and humbled that we and all other life exists. Simply amazing.

[@matthewstone1362]

Not much goes on most places most of the time.

[@cmarqz1]

Truly awesome, Thanks for sharing!

[@jimroberts2257]

Brilliant lecture concepts, naïve photographer, a few tired old men. (I'm 70 myself so I probably would have been resting my eyes during the beginning material too). I'm delighted that professor Penrose's concepts are fleshed out versions of my own pitifully vague ideas that I've nurtured for 20 years. Glad to have found him. He's crystalized what I just mushed around in.

[@dokuzbirdebucuk]

One of his comprehensive lecture on KZbin that I come across.

[@whirledpeas3477]

You have inappropriate content of children on your computer. Authorities have been notified.

[@whirledpeas3477]

@@hdbrot You must be involved.

[@arealassassin]

I really can't work out why one would pay umpteen thousands of dollars to go to university these days- These great people such as Sir Roger, Leonard et al are teaching me everything right here!

[@stevenjacobs2750]

Because this is really not teaching you much at all. It is a sugary snack of information. It is a good start, but it is no more than reading the back cover dust jacket on a book and wondering why people pay money to buy the whole book to read -- its all summarized so well in these 3 paragraphs!

[@mrautistic2580]

This is the best logic about the big bang that I've ever heard/seen. I hope he gets a chance to see where his logic fits the whole picture before his years are up.

[@4tomoconnor]

Mr Autistic Actually, my understanding is that while conceding a Big-Bang, the question he proposes is its origin. A singularity explosion out of "nothing" as opposed to a perpetual aeon Bang. I cannot now, or ever, accept the standard model as I could never accept something from nothing, so his idea makes a lot more sense to me...an eternal universe...non-created.

[@gepmrk]

Mr Autistic And I hope the old guy in the front row wakes up before the cleaners arrive.

[@ChrischrosBelgium]

+Tom O'Connor Read the book of Lawrence Krauss. Something out of nothing.

[@4tomoconnor]

+ChrischrosBelgium I did, and I'm afraid that I find the basic concept to be preposterous. Nothing = Nothing. Something = Something.

[@ChrischrosBelgium]

I'm afraid that your answer is the best proof that you did not understand his book.

[@MrKorrazonCold]

As the waves come from a distance radius compressing the wave amplitude (like dropping pebbles into a pond) 4pi R2 forms a potential infinity of future possibilities at every degree and angle of space and at every moment of time. This can be seen in a two slit experiment when someone turns on a light from a detector adding energy compressing the wave amplitude the shorter the expanding wave lengths the greater the energy. Time is inverse multiplying +/- dividing like frequency and wave length.

[@fashric10]

Someone should tell the camera guy its not a rock concert so there is no need to show the audience every 30 seconds.

[@SheshagiriPai]

+fashric10 Atleast when 80% appear to be sleeping!

[@jacksainthill8974]

I'd sooner the camera stayed on the display while it's being discussed.

[@timelsen2236]

No one ever mentions this to the video people. Lets assume they know their job. Status quo, like the sleeping also being on the clock. Why would Rodger have to explain the degraded effect they are having not only on his video but all on line programs. With such effort having gone into such topics, does it always have to fall flat, over such a minor detail as keep the camera on the board.

[@zes7215]

wrong, no such thing as should or not, no need no mattter what

[@NicolasGodon]

You can count the first row members slowly falling asleep

[@nmarbletoe8210]

Penrose starts at 5:18

[@cmpe43]

thanks for that!

[@claudiosaltara7003]

Fascinating lecture.

[@Boogieplex]

I wouldn’t at all be surprised if in 50 yrs the name “Penrose” was synonymous with the discovery of how the Universe behaved before the big bang.In fact im stunned that more cosmologists arent backing his CCC theory.Hes definitely on to something big here....Really big.

[@Boogieplex]

@Alexander Buech I understand your point,but our current model has flaws as well.But just because it has flaws doesn’t mean it,or part of it,isn’t right. This is nothing more than a detective story,and if we stop chasing clues,we wont find the suspects. There are some parts that are austoundingly intriguing,but i also know there are flaws.I hope he or his predecessors can work them out.

[@Boogieplex]

@Alexander Buech What’s not quite right? No part of my statement is wrong.tell me which part i got wrong?

[@Boogieplex]

@Alexander Buech We had to inject dark energy and dark matter to make it work,but we have no idea what that is. Its also incomplete,as we don’t know at the moment of conception,nor do we know if inflation is even correct.All im saying is new ideas spark other ideas,and Penroses is interesting. You don’t have to throw away our model as a whole,as it’s supposed to work WITH CCC. If you think we already have all the answers, we don’t.

[@Boogieplex]

@Alexander Buech My whole point, if you really look at my original post, is that I wouldn’t be surprised if that how the universe behaved ”BEFORE” the big bang. I never argued anything about our current understanding AFTER the big bang..It does check all the boxes,as you say. I don’t know why im debating my own opinion.Its an idea, nothing more. You seem intelligent enough, reread my original post.

[@teryarty177]

I totally agree. The two big questions; The origins of the universe and the nature of conciousness. In Penrose's model there maybe an explainable cohesion of the two. That's just a feeling. There are several brilliant scientific minds around today, Penrose is certainly one of the very best in that he's prepared to almost discard a previously established scientific idea if it's led to a standstill. Then he produces an alternative model which is definitely testable. I've no doubt that people will be looking for the smoking gun on this one, with a very good chance of finding it.

[@josephsiler1946]

There once was a lady named Bright, Who traveled much faster than light, She started one day, in a relative way, And returned on the previous night! What shape is the Universe in ? The Universe is in Great Shape for an Old Universe !

[@gmshadowtraders]

Congrats on 100k subscribers!

[@KiwiKastle]

I should add that acetate slides are far more flexible in use than PowerPoint - you have to be very expert as a PowerPoint manipulator to hop back and forth as the occasion demands DURING a talk and as one's thoughts arise even during a presentation such as this.

[@PoppyCat1]

YES!!! I am still waiting and I am very cross. I don't have 13.7 billion years to wait!

[@12inchvertical]

Rog is pretty oldschool - still rocking the overhead transparencies

[@Stylax32]

Great video !!!

[@idw9159]

love the way the audience is in rapt attention and the front row luminaries are all asleep

[@godfreecharlie]

Those seats aren't cushioned are they?

[@TheCroonx]

Ciekawa prezentacja, ciekawa praca, powinien dostać większe wsparcie w poszukiwaniu dowodów.

[@jstanton7070]

Yea.

[@5ty717]

Looking more and more likely that RP is right - 12 years on… beautiful presentation and excellent questions and moderation.

[@bobbylincoln8156]

amazing

[@muditracks3640]

Wonderful...❤️👏🏻

[@ConstantFate]

Nice. We're getting closer to the past...

[@gerrynightingale9045]

"All of the energy and matter that existed still exists. Matter does not create energy of itself. The actions of matter enable energy to become manifest".

[@farazmasrur]

Considering the Hubble Factor Equation, Big Crunch requires a '-'ve Cosmological Constant (related to Dark Energy) & a larger '-'ve Curvature of the Universe. H'/H = (DE) + (DM) + (M) + (E) + (Curvature) As per observations, the current values for the DE factor is around 70% & the Curvature factor is around 1%.

[@davannaleah]

If only he knew then what we know now about the recent announcements regarding ripples observed in the background radiation just as he described in this lecture.

[@thormusique]

Absolutely brilliant! Dr Penrose never ceases to amaze. I can't help hearing a certain "ring of truth" in what he says here. As always, his logic is elegant and conceivable, the latter in particular being something that's difficult to say about notions like string theory as any kind of insight into cosmology. I think 100 years from now, people will continue to confirm his views, much as we do Einstein's today.

[@DSBeholder]

I have that same gut-feeling while having traversed this physical quest ...he is really on to something here....but the conceptual gap is hard pressed for the mainstream to embrace his idea's....yet

[@jonkrieger5271]

Aw man, cliffhanger! I can't wait to find out what the results are of that experiment.

[@sevenstarsofthedipper1047]

I am not a scientist or mathematician but I don’t feel so bad struggling to understand CCC because more than half of the audience looks equally confused. Interestingly, the person who looked the most focused in the audience was the little boy. Who knows who he may become?

[@JP-zl7mt]

Nope. They read the book, understood everything but were expected to sign in to this lecture.

[@BillMarion]

love it

[@user-ub7bi4sz8q]

35:28 if you knew that Roger Penrose would get a nobel ten years later you wouldn't sleep.

[@MrKorrazonCold]

Yes Occams Razor Only two combinations of spherical + and -electro magnetic wave fronts exist they have opposite vectors and spin or compression and expansion. Everything will oscillate in periodic or harmonic motion. All motion is spiral. All direction is spherically curved. Vibrating matter is opposed motion simulating rest and balance now through violent motion. More violent the opposed vibrating motion Plancks constant is multiplied by a larger amount as time slows down within that ref-frame

[@rgaleny]

Wow, this was intense.

[@life42theuniverse]

23:00 but the glass did begin as sand a very large phase space and was then melted in a furnace and shaped moving it to a small phase space. Only once it reached the party and falling off the table did it crack and begin the process of erosion back into large phase space of sand...

[@TomM-iw3te]

I found the lecture fascinating and fun to try and follow all the twists and turns while using mental gymnastics to acquire new information, questioning previously held views and discard old ones. I thoroughly enjoyed the lecture and hope the hypothesis gets rigorous testing and research support from the community and supporters to see if Professor Penrose's theory is right.

[@stevimichael5553]

This day and age using transparencies for a sophisticated lecture.

[@TheCarin12]

Did anyone else fast forward to the conclusion?

[@Kraflyn]

the audience is wildly ecstatic! :D

[@CharlesOffdensen]

26:45 you need a solid (or a liquid) body in order to produce continues radiation spectrum, as shown on the graphic.

[@schmetterling4477]

What's wrong with a hot plasma? The CMB is not continuous enough for you????

[@CharlesOffdensen]

@@schmetterling4477 Hydrogen, for example, emits radiation only at certain wavelengths. chem.libretexts.org/Courses/Solano_Community_College/Chem_160/Chapter_07%3A_Atomic_Structure_and_Periodicity/7.03_The_Atomic_Spectrum_of_Hydrogen When you see a spectrum like the one shown in the video, this must be emitted by something closely resembling a perfect black body. A plasma state cannot emit radiation with continuous spectrum. Neither could the CMB, unless the universe was made entirely of graphite.

[@PMaldeev]

@@CharlesOffdensen There is an almost perfect black body consisting mainly of hydrogen and helium plasma over your head - it's called the Sun.

[@1963gomes]

Dear Frankbraker, it seens nobody gave your question attention. The first law is the one before the second. Regards.

[@tomlavelle8518]

Man I’d love to understand this guy!😁

[@frinoffrobis]

thank you.. this was ten yrs ago, but was it before or after he won the Nobel Prize?

[@dollarsignfrodofan77]

So then there is a maximum size limit on a black hole? Could massive merging black holes reach this maximum entropy level? Would they explode like a hyper hyper nova after reaching this limit? Could that qualify as a big bang?

[@cwbeas]

That is some energetic music....

[@0xffox]

It is always a treat to listen to sir Penrose.

[@owen7185]

I dont know of a better artist than this man wrt explaining mathematics and physics concepts

[@Blackbird58]

When Roger Penrose speaks of Black Holes having very low temperatures I imagine that's because Physical Space at -273 degrees is bearing down on it at the speed of light, it's hard to visualise there being any temperature above absolute zero. Can anybody tell me why is it that the theoretical "Information" which is squeezed out of the event horizon due to Hawking Radiation is not instantaneously swalloowed up again by the Black Hole? I just don't see how it could escape the unimaginably overwhelming force of the actual fabric of space which, to repeat would reach FTL velocity at the event horizon. I trust that there are plans to preserve Roger Penroses acetate drawings-they really are good- for posterity, they will be revered and marvelled over for as many cernturies as we have left. He is a remarkable man and is a great source of encouragement for me in my studies (albeit rudimentary) of Physics.

[@timelsen2236]

PLEASE make a post on the relation between DIV GRAD at finite density charge sources and the relation of this to gravitational curvature for finite density mass distributions. For zero charge density DIV GRAD X=0, while for mass the mass on a rubber sheet model suggests negative (Gaussian) curvature in the surrounding vacuum, suggesting DIV g

[@Gribbo9999]

So if I understand the lecture correctly, if I get the gist that is, is Sir Roger saying that overhead transparencies came before the big bang? Or am I missing the (Power) point?

[@hdbrot]

What is the music at the beginning?

[@stevephillips8083]

Nice theory, makes a lot of sense.

[@tmlavenz]

Panning to the audience every minute is totally distracting and lame. We don't need an advertisement for your fancy auditorium and snoozing emeritus faculty. Similarly with following Penrose around the podium - it's not a magic act. Sometimes it is even switching shots every 3-5 seconds, making it difficult to read. What the viewer wants is to hear his voice and follow everything he is trying to show through the slides. Keep the camera on the display and the slides! What do you think we're here for, to be entertained? [But for anyone reading this, watch the video anyway! Penrose is genius.]

[@squirlmy]

I'm wondering if the cameraperson was trained during Communist surveillance years, collecting incriminating evidence to confront the insufficiently enthusiastic comrades! lol

[@andrewpickering5180]

I think it is too recreate the atmosphere of the event. Relax into it. Hope it works out for you 🙂

[@wingedpanther73]

I've been trying to figure out what it is about this theory that bugs me. I think the issue is that the conformal mapping from end to next beginning has an effect of changing the metrics of the meter and/or second. While the mathematics of conformal mappings is very elegant, it basically says "metrics don't matter". In physics, though, the metrics DO matter. So, it seems like there's a bit of hand-waving going on about the transition from old to new. Granted, we haven't looked at the math, but the change in metric bugs me.

[@jojolafrite90]

Sir Roger Penrose. Bravo, Monsieur, chevalier Rose stylo. I actually admire this man.

[@YoutubSUCKZ]

yes

[@ronaldderooij1774]

The first row in the audience seems to be VERY interested... (NOT). In fact, it seems that one of them died during the lecture.

[@heidihoglan5873]

-- haha i was going to say that XD

[@jimwolfgang9433]

Not the best auditorium for this kind of extrapolation. But Mr Penrose forever clucks on about how he can't use a fucking computer. The man's a bona fide genius

[@4305051]

Aeons before Powerpoint.....

[@emigrek]

It was in 2011 tho

[@PositiveANegative]

That's sir Roger Penrose. He likes his transparents. He's been using them very well to explain clearly for years.

[@MaxBrix]

They gladly drag the overhead projector out of the basement for Penrose.

[@MrKorrazonCold]

Yeah!! "David Bohm sees the manifestation of all forms in the universe as the result of countless enfolding and unfolding between these two orders. Therefore, the explicate order corresponds to the physical world as we know it in day to day reality, the other deeper order is the implicate order, which is like a vast holographic movement. We see only the surface of the implicate order as it unfolds. Most neurological investigations show how action is indeed taken before becoming conscious of it."

[@dedskin1]

Does anyone know why Andromeda formed where it is and not 2 meters to the left ? On top of that does anyone know what is the direction of rotation of Andromeda and if its clockwise why it is not anticlockwise . I have some idea on 2nd question , its not rotating clockwise or anticlockwise , its nether or both depending of the point of view , but its strange , its kind of 2 dimensional thinking but its the best i can do for the moment

[@robertw2930]

I didnt read comments , but can't it also be said that the table will have entropy given enough time as well given the right angle to gravity?

[@YnseSchaap]

Don't you just love overhead projectors

[@sfsoma]

Dziękuję bardzo z Ameryki

[@qantum251]

I hope I'm wrong 19:35 , he says the log of the volume is the entropy.... the argument in the log should be the complexions number Wi, the number of possible configurations the systemcan possibly occupy, so is there any equivelence upon which he's stating this, sounds weird to me.

[@horrorshowchai]

Hmm? I don't see a problem with that. The volume isn't the 'number' of configurations of course, it's some metric on a continuous phase space. And it's not the total number of configurations, it's the volume of some subset. But still, makes perfect sense to me.

[@hgfuhgvg]

I found the camera skills more fascinating then the lecture

[@shankarbalakrishnan2360]

In the iit entrance exam the topper only get 33% of the answer right within the stipulated 3hr exam per subject❤❤🎉🎉

[@johnstfleur3987]

I AM ONE OF YOU PROFESSOR SIR ROGER PENROSE....

[@Paalfaal]

Photons does not have mass, but since it moves at the speed of light it has momentum.

[@LesterBarrett]

Assuming a somewhat conventional concept of the essence of matter, one could consider for example a theoretical point where angular acceleration meets linear acceleration. I think that the Greeks had difficulty with the concept of something moving in an arc, perhaps because of not yet understanding the concept of multiple forces acting on a particle. When does our conceptual notion of difference become irrelevant to the point that the math seems to be similar? What is the difference between anything and the location at the next measurement? For example, what determines that a change of any type has the ability to take place? This could be a change in position, or rotation, or any change at all. Time could be seen as a form of measurement or limitation to the possibiity of the smallest possible change to the smallest possible particle of matter, if it is indeed possible to define a point in space or time or some other dimensional combination where the concept of matter makes sense. Naturally, matter intuitively makes sense to us and characterizes our understanding of anything because our existence is in a place where space and time define us and our view of what is visible to us physically or in thought. Words fail in an attempt to describe this concept; but it is not impossible to apply some concepts of our own experience to get a better look. Looking at a theoretically small particle, let us call it matter; let us assume that it is at some threshhold of existence where we can define it in thought, and maybe measure something about it. Now place this "particle", or entity, in a multidimensional matrix. Consider how it would be possible for any change at all to enable this particle to retain many of its characterisctics, hopefully enough for our definition to hold, and yet to find itself even the smallest spatial distance from where we first conceived of it. At that point, we can safely build up a comfortable theory that is grounded in the uncertainty principle. That is not, however, satisfying as an explanation of where something is or what it is etc. One thing is fairly certain. Even the things that we do not know about in any way are probably having an effect on us and on everything. I believe that there are probably forces that are buffered as they apply to our experience to the point that they may be immeasurable; yet they are relevant to the bigger picture. Without them, completeness would be impossible. A future implies a present and a past. A location implies other locations. A force implies directionality. Directionality implies forces. Matter seems to imply antimatter, although I am not sure what that really means other than that it is a conceptual question regarding how our minds work and our language fails to convey everything that goes on there. Just some thoughts on a rainy day. Now I wonder whether time could actually be considered as a force.

[@schmetterling4477]

Or... you could get help with that. ;-)

[@andrewwebster4352]

How I miss the days of presentations using acetate slides...now you have to use PowerPoint...I fucking hate PowerPoint.

[@KiwiKastle]

Why? His slides are perfectly comprehensible, apt and fit for purpose.

[@Dyslexic-Artist-Theory-on-Time]

This is an invitation to see a theory on the nature of time! In this theory we have an emergent uncertain future continuously coming into existence relative to the spontaneous absorption and emission of photon energy. The future is unfolding with each photon electron coupling or dipole moment relative to the atoms of the periodic table and the wavelength of the electromagnetic spectrum. This is part of a universal process of energy exchange that forms the ever changing world of our everyday life.

[@zerge69]

What’s with the 70s cop tv show intro music?

[@SeanLynchXY]

Citations please?

[@markharrispt]

I'm shocked! What's with the 80's intro music?

[@uberXserial]

Sir Roger Penrose is neat.

[@josephsiler1946]

There once was a lady named Bright, Who traveled much faster than light, She started one day in a relative way, And returned on the previous night!

[@denalfit]

Have not seen transparency slides in like 13 years

[@josephsiler1946]

Thanks for the interest about the Poem. I copied the poem from Scientific American Magazine years ago and still remember it! I don't remember who wrote it though. But hay, Time Travel may be in the near future!

[@nissimlevy3762]

if time travel is in the near future then we would see time travelers today

[@badmintongo4832]

@@nissimlevy3762 I am one.

[@nissimlevy3762]

@@badmintongo4832 tell me what will happen tomorrow. For example, give me the closing prices to the penny of Apple, Amazon, Netflix, Alphabet and Facebook.

[@raulcavazos7780]

I wish I could have been one of those kids sitting there.👍

[@osochozi5647]

@coperCopernicus Center for Interdisciplinary Studies Napisy?