In conversation with Nima Arkani-Hamed
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- čas přidán 28. 05. 2024
- Nima Arkani-Hamed, one of the world's leading and most exciting theoretical physicists, shares his ideas on the future of fundamental physics with Graham Farmelo, author of the Costa-winning biography of Paul Dirac and of the new 'Churchill's Bomb'.
Nima also answered questions on why we have a big universe, the role of the LHC and what you do as a theoretical physicist.
You can read more about Nima's views on the future of fundamental physics here www.sns.ias.edu/~arkani/pdfs/F...
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I love this man's passion. So enjoyable to watch.
I am not a scientist or a mathematician, but the passion that Nima shows for understanding the universe and the laws of nature, always amazes me! I consider myself his personal stalker LOL!
Nima is one of those dudes who gets whisked away in the middle of the night by military helicopters if there is an alien invasion or something.
I can see the movie now!
@@grungecrunge You mean the movie "Arrival", don't you? :-P
Stargate
Now that's really funny. Im sure when he's gone, someone will steal his brain for study, just like Eistein's brain. Now that would be very interesting to study. Lol
Nima Arkani-Hamed should be given be more time to speak. What a legend!
i have no clue of understanding as to what he’s talking about, but its absolutely astonishing! 💥
You're definitely not alone!!
This is such a clear, concise, and beautiful explanation of (some of the) unanswered questions in fundamental physics. I am hoping for a paradigm shift.
It's coming. Look up Don Hoffman.
Reality as we perceive it has nothing to do with the Real.
The main takeaway for me after watching this video is that I am dumb. Thank you for that, Nima.
It would be good if many of the leaders of the world, so certain of their positions, would have the same attitude and be humbled!
I feel inadequate too. But the knowledge he possess is so anourmasly interesting and informative for my curious mind.
What a wonderful man, he is so good at explaining these complex issues, I feel as though I managed to grasp most of what he was saying.
Nima is insanely smart. I try to watch his videos....along with watching Sean Carroll, Leonard Susskind, and Lawrence Krauss.
Drop lawrence he is delusional and very close minded
Sam Ma
I agree with Sam Harris and Richard Dawkins too. Would you have me drop those guys as well?
Idk about sam but richard and lawrence are very close minded and their way of thinking is bad for science.
Agreed, @@samirrimas. Krauss is a massive egotist.
what I find most interesting in this is the difference in the cognitive speed of Nima's brain function and the limits of human language to articulate his thoughts at the speed he has them.
we need a language beyond mathematics as we know it
Guide504 I had the same thought.
Guide504 Yes! Such a great comment. So true.
Guide504 In pedagogy and psychology we call it dysfunction. Too many fragmented thoughts causing problems to put them together and speak fluently. Nothing is that complicated that it is unpronounceable. Yes, he is very smart guy but all those "erms, umms, stutterings" are just plain dysfunction. Nothing serious threatening life.
Wasn't quite what I meant but many thanks for the insight.
plain vanilla...... not sure your worth listening to after that assessment of someone in Nima's realm.
bit silly really.
A excellent communicator. A great talk. Thank you.
A brilliant mind! How lucky humanity is to have such a mighty intellect at work on the great mysteries of our world. Yet he's also humble about his gifts, Remarkable. What strikes me as well is how unaware he seems to be of his preternaturally stunning good looks. In other circumstances, he might have been a huge movie star. Much as I love cinema and its beautiful men, I'm totally grateful he's directed all his energies and attention to science. I only hope he has a partner who loves and supports him unconditionally.
Great and immensely fascinating talk. So we have found the Higgs,have we found any other particles as eluded to by Nima? Is our multiverse finally tuned? And, is Amplituhedron theory a more robust way of describing quantum field interactions and ultimately the nature of QFT itself?
Khoda hefzet koneh pesaramfarzand iran.we ar proud of you 🙏🙏❤️❤️
Interaction with the unitary Source field helps to explain action at a distance, non-local "forces"
Why is the universe so big and just what does a theoretical physicist do? Nima Arkani-Hamed has the answers In conversation with Nima Arkani-Hamed
The Multi verse and non-existance are far greater. Other dimensions.... Realms.....
Mellisscieant Ace
Shout out to the interviewer for not being the interrupt-every-10-seconds type we so often have to endure.
This moderator is in love with NIma
What does the future hold for fundamental physics? In conversation with Nima Arkani-Hamed Graham Farmelo sat down with theoretical physicist Nima Arkani-Hamed to find out more
Nice yar
Thanks for not dumbing it down, the typical result of which ruins public lectures. Even most children don't require this to the common extent today. I just watched a child questioner who responded to the speaker saying," I know what an axion is." The speaker said ,"probably not." Meaning on a deeper level. The moderator can relax, this is the proper level of difficulty for public lectures.
My Guess based on what i've learned from listening to Nima: The Pencil standing on its tip is the accidental event given enough time like when in a waterfall we can see a structure, then a rainbow appears for a while "a Holographic structure".. This temporary structure is our seemingly stable temporary universe, a "Hologram". The 120 0r 60 decimal place mistakes in physics are the numbers at the very start of inflation when the waterfall was infinitely dense and born from another branch of the Multiverse in which things like distance and maybe even time does not make sense (Spacetime emerged from something more fundamental from the other branch of the Multiverse).
I think the interviewer did a perfectly fine job - people need to get their undies out of a twist.
Good job Graham.
thank you
Thank you.
Nima’s Amplituhedron encodes amplitudes (building blocks of probabilities in particle physics) in the “area” of a multi-dimensional analog of a polyhedron (hence, Amplitu-hedron). But there is no such thing as the “the Amplituhedron,” meaning a single monolithic geometric structure outside spacetime that is more fundamental than spacetime. Hence, “the Amplituhedron” is just a concept, which manifests in various amplituhedra, each corresponding to a calculation that one might make. The Amplituhedron’s advantage is that it makes these calculations much simpler. But this hardly makes the Amplituhedron more fundamental or foundational than quantum mechanics or spacetime. Imagine using an abacus as a computational tool and then discovering an electronic calculator that is many times faster. Well, that is an analogy for what Nima has done. And while it’s very commendable, it hardly revolutionizes physics, as he and others contend; but merely simplifies quantum computations.
Fascinating stuff.
graham's laughter is terribly annoying
Mederic Lanoix Maybe if you are easily distracted, it didn't bother me in the slightest.
Makes me want to take his milk money.
I didn't notice it until I read this comment.
Oh! It's now bothering me after reading this comment! -_-
Nima was definitely missing in the crew of scientists in Jurassic Park …
bet now that spacetime is an emergent product of a multi dimentional frame in a cyclic universe that pulses from singularity to entropy and the supersymmetry is the mirror that returns the inflating universe by proxy to a singularity and so it goes, spacetime as we know it is driven by entanglement interaction originating from proximity in the singularity at the beginning of the universe we now enjoy. The real question for me is not the supersymmetry but the mirror dimension in between.
peace to all
I look forward to hot wax!
not in any other context naturally!
Consciousness is fundamental.
Nima listening to this made me think of the Anti-matter entanglement of matter and its anti-electromagnetic fields, are those making gravity waves ??? and if so if you could effect the 6 Dimensional Anti-matter (DarkMatter) of a COMET or ASTEROID then you can shift its gravity to another location possibly controlling the path that it takes ....
that giggle at 22:00 is just adorable
If we are going to throw away space and time then I am not going to work tomorrow.
Oh, the giggling, cackling moderator is making it very difficult to watch one of my favorite scientists...
I am not a scientist or a mathematician, but the passion that Nima shows for understanding the universe and the laws of nature, always amazes me!
I concur
Why does Graham Farmelo keep looking over to his left?
@15:27 - Nine years later, is space-time still "doomed"? Seems we have more pressing concerns to worry about...
I know you guys hate Graham here but his biography of Dirac was a very good book. very detailed and dense, but you get to know about this mysterious genius. I definitely recommend reading one
Such a good a speaker. My usual complaints ; choppy video, and waving at off screen diagrams not here. Bravo, good job!
They asked him the same question 2x "why spacetime doomed".
That all you got out of it ?
So if spacetime is doomed, and is not fundamental, how does conciouness play into that? Is conciouness fundamental?
Steven Williams: It depends on how you define consciousness. Consciousness is defined differently according to different modalities. Caution is necessary here.
The discussion of the vacuum is missing the fact that the "wild fluctuations" are generated by the act of measuring it. In the absence of measurements, there is only a probability of the 'cloud of virtual particles' and such has no mass or energy associated with it.
Super brain.
I don’t exactly know what it means space-time does not exist the qualifier isn’t clear to me , or the scope doesn’t exist as a…. Or doesn’t exist in…..
Or is it for the purpose of my talk ? I’m just beginning to recover from high school chemistry atomic theory which I wish didn’t exist
THOMAS: I beg You, pardon? 🙄
❤️❤️❤️
50:07
"Irreducible representation of Poincaré group of spin half" XD
Genio!
I do not undestand why the person facilitating the intervew is mocking about things he should be reverent to
I know nothing about physics or chemistry, but I damn sure want to thank the geniuses who came up with beer and cups. Beer to drink, and cups to drink it out of. Then end!
“We cannot even understand how the smoke from a single cigarette is forming its patterns” , yet we have the gull to talk about climate change, global warming etc.
I'm going to go out on a limb and assume that you meant "gall", and not "gull". In fact, and in spite of your comment, I'll go even further and assume that you are a person, and not simply an ignorant facsimile of one. However, I wouldn't bet too much in either case...
I would like to be smart as Mr. Nima.
why is the person pre-eminent?
Obviously very intelligent theme, but it reminds me of one of Professor Irwin Cory´s, skits, American standup comedian.
Could decoherence have a fine tuning effect? The measurements of the vacuum at very small scales requires very large/massive devices that must act 'classically' in a deep sense that we explain using decoherence arguments. Could it be that the scale at which gravity has a non-negligible effect acts to adjust the rate of decoherence of the system that is doing the measuring?
Stephen Paul King No.
Oners82 what is your reasoning?
Stephen Paul King Because what you said makes no sense.
8:00 - But do you really want the universe to be THAT predictable? Right down to the mundane daily details? I don't - I like believing that have a degree of control over my life.
Where do antiparticles exist?
Nowhere. That's mostly because particles don't exist, either.
49:45
I thought for a moment that this was the guy from police academy.
He has matured a lot since then 😁
Snap
As far as levels of reality go, he's saying that the amplituhedron is on a subtle level, but is it turtles all the way down? (another "hedron" even more foundational, then another?). Set theorist George Cantor explored this question, saying that all such levels culminate in a limit, the Absolute Infinite. This is experiential and is the nondual Pure Consciousness. To tap into that and merge with It, access "Mahamritunjaya mantra - Sacred Sounds Choir" and listen to it for 5 min per day for at least two weeks. Pure Consciousness is transcendental to space and time and is experiential in a nondual sense.
Yes and behind amplihedron is decorated permutations
Graham doing his giggliest best to uphold England's Monty Python tradition.
The underlying structure was known for thousands of years , why not investigate it instead of reinventing? Or is it there is no fame and fortune in rediscovery?
There has never been? Plato wrong?
Alchemy wrong? True alchemy wasn't even about matter ., to say they never knew. Is saying : I looked at every person who has done research in the past, and understood how they did hide
The sacred secrets and why they did. Even the torus generating universe idea is traced back to Babylonian times. We learn at school that the Greek came up with PI while in the same time they worked with 3.1416, history isn't as clear cut as they make it out to be..to say there was not a time in the past that they knew is far more a believe then saying they have not yet rediscovered it.
A conditioning that is blinding.and inability to seriously investigate the possibility . perhaps when they get closer to it they will get of their high horses and learn about the reasons it was lost.and make a real change, way beyond. That what is ego driven. Time and time again a theory is defended by the creator thereof for the sake of little .I., sometimes to the point that they ignor
im surprised the public isn't outraged. they get excited when they cant find an answer
Arkani, if electron theory is not complete for some deeper reason, neither is an electron, and, points as the basics, arent the basics of logical vacuua. John von Neumann explains this by adopting non intuitive logics. So my suggestion is make physics conform to logics as more basics for laws 🤔. Not math of numbers because they are spacetime points and they aren't right.
I would exchange my whole life for just one year being a person who sees the universe as this guy can see. What's the point of living knowing that you are just another ordinary person?!
Strive to be unordinary.
The kind of guy that could lose you in his second sentence
This guy interviewing Nima is oddly giddy.
isonlynameleft: Please don't talk bad about him. He is my uncle
@@terefefeyssa877 I don't even remember making that comment but sure it's all in good fun 😄
@@isonlynameleft : This is not fun. It might be a court case. 😠
@@terefefeyssa877 😆
@isonlynameleft : I beg you, pardon? 🙄
ایول به ایرانی ها
آمریکایی-کانادایی هست در اصل شک دارم فارسی بلد باشه. ایرانی فعلا در گیر خرافات و جهله
استاد اردکانی، پدر نیما در دانشگاه شریف تدریس می کردند و بعدها به کانادا مهاجرت کردند
Jajajaja! His highness. 😂
why space time is doomed ? we write equations in terms of how coordinates x (space) change with time t, namely x(t). The problem is that at plank scales we can no longer write equations of motion in that form x(t)
Lucas Blinda space time is doomed because fundamentally it makes no sense in a world with dark matter exists--where the trajectory, energy, and any other measurable characteristic of a particle seems entirely unconnected to the space in which it exists.
If we keep space time, you have to explain away dark matter and the large-scale structure of the universe as an output of a space time fabric that was pre-shapen. It requires you to assert that everything is where it is because space time "funneled", or "directed" matter towards the areas where it is currently. You have to assert that it had a tendency or penchant for curving certain ways in certain areas. We're perfectly aware that relativity is largely correct and that space is effected by mass. If the former is true, relativity contained the seeds of it's own destruction.
Some believe that it could perfectly well be that the universe is positively curved, or negatively curved, but no one believes that is has a goofy ass shape. It's only in a scenario where space itself fluctuates, or has properties we don't understand, that it makes sense that space both responds to mass/energy, and at the same time has some penchant for direction or orientation, or the property that is dark matter.
It's the complete disbelief that dark matter is something discrete and undetectable, and the existence of black holes that leads you naturally to the above. In regimes where Space has extreme properties it loses all meaning: Space can't have some random affinity for mass not related to anything physical, and it can't be infinitely curved.
Who says that the universe is big? What does it even mean??
its observable size which can be measured by red shifting is metrically measurable. It isn't infinite but it is big, it is also expanding faster than the speed of light, which means the speed of light is not the limit of which things can travel.
Zarko: Have respect please? 🙄
Hello dear Robinson lab,
The structure upon which matter is woven, the whole universe follows laws
That kind of dictated by a non material structure, it hold the laws. The tree of knowledge although a little different from the popular kabbalistic tree so often shown. The underlying laws, and they are linked together, and was known.
Even PI phi etc. Role out of this structure . What's more, the very text( in number of the Torah 304803 letters role number by number, letter by letter . The code. Yes the know the golden ratio can be found in flowers etc. But is it in the seed? Or is the seed in it?
Both are true, the know the branches follow rules but where is the rule implemented? This structure reveals it all.
Me apellido nima xd
In Nima Yushij hast, ke Nimooli ham migan
Nima is not trying to be funny or get laugh but the host doesn't get that.he is dead serious and passionate. Just listen what he has to say
Nima and Steve Jobs looks alike
Never! They don't look a like
"Spacetime" as the title for a potential numerical precision description of Reality, is doomed to be Theoretical and incomplete Opinion, in abstract factual components, but perfectly consistent Physics, for an Experimentalist's practical Intuition. Eg LHC, LIGO etc.
"Space and Time have gotta-go", yep, from precision imagined discreetly measurable numerically quantifiable particles/objects, to actual self-defining events in Timing-spacing.
An analysis of standing a pencil on the finest tip, @.dt, and integrating the motion,(Euler's Buckling Formula perhaps?), reveals something about transverse timing and mass-momentum spin-spiral point-positioning that is logarithmic shaping "leakage" of metastability in Virtual Work.., Engineering Space-time phantasmagoria.
Always Fun to Imagine, probably Right, that is ordinary re-evolution of meaningful existence.., cause-effect Learning/Teaching.
The Problems are on or off, The Point, Theoretically, so in natural emulation of QM Superspin Modulation Superposition, Reiterate Everything (Sciencing Theory in Professional Practice)
Nima Arkani-Hamed 15:05 : "That idea, the idea that there is an underlying spacetime, we know from many points of view, from many theoretical arguments, we strongly believe that spacetime doesn't really exist. (...) The slogan is that spacetime is doomed and something has to replace it."
Einstein and Minkowski deduced spacetime from Einstein's 1905 constant-speed-of-light postulate so if the consequence (spacetime) doesn't exist, is doomed and has to be replaced, then the postulate is false. The combination "true postulate, wrong consequence" is forbidden in logic.
Wrong!
Space-time does exist, but it is doomed as a fundamental reality. It is only a "derived reality" or an EMERGENT one. What he is saying is that the fundamental reality is different!
Pentcho Valev I see that you like to troll these videos saying the same shit but what you are saying is just wrong. All he is saying is that spacetime is not fundamental, it is an emergent course grained description. Einstein's theory still works fine at the appropriate length scales and so both postulate and conclusion are correct AT THE CORRECT SCALE OF APPLICABILITY.
But however useful they are, they are not fundamental descriptions of reality.
Everything you know is merely theories. Nothing is absolute except the Absolute.
Induction is basic logic. And a wrong conclusion in induction does not invalidate the premise. I don’t know where you got the “forbidden” statement from. Nothing is forbidden in logic, it is simply logical or not.
if Nima would be a lawyer he would never loose the case. That is a theory he makes
i know how universe works.
Etimespace: How? 🙄
I really oppose your idea. It is absolutely unacceptable. 😠
He is Azerbaijanian nationality born in iran
actually, he was born in Houston because at the time his dad was working at NASA
If you treat space and time on equal footing you can do it either by downgradeing space to non-observable like time, or buy upgradeing time to an observable...As I could see and read, you can build theory either way..Or?
Why's the guy on the right always laughing?
15:45 - Dude - you need to explain that to him better than that. I understand what you mean, because I've watched your videos. But it's not self-evidently obvious without elaboration.
@42:36 giving Bucks too much credit for winning 2021 nba championship…
22:00 - Gosh, man - all that stuff you're saying seems to me that it would lead pretty quickly to "we don't have the right laws." Sounds like they do "some things right" and "some things wrong"; one would think that the right laws would do everything right.
So fundamental yet ignored
Am I the only one hearing this audio crackling & intermittent ? Reloading, letting the gray bar advance, nothing improves it.
Suggestions ?
Facinating. Great speaker. The host tho is super lame. Get him off the stage.
those chairs look very uncomfortable...
He's very brave going up on stage after being attacked by that lawnmower.
Mr. Farmelo strikes me as needing a bit more gravitas. He can be rather distracting. No offense meant.
LOL can't say I am thrilled how EweTube allows Science Museum to CENSOR comments ... pathetic and sad
This clown's laughter - the British dude - once in a while is so freakin uncalled for
Who?
You know what comes after space and time you heathens? Hell!
Physicalism--the methodological, ontolological assumption since the Enlightenment--is dead. Consciousness is primary.
Why are you telling us that you didn't pay attention in high school? We didn't ask and we don't need to know. :-)
Who on earth is that irritating person almost spoiling an excellent lecture Why is he there. Who let him be there.Why can't he be a black hole
15:39 - 15:48 😂
what's with the laughter? he's like a teenage girl hanging with her boyfriend.
For obvious reasons god does not appear in their equations, maybe it should.
Ah, Um, Mmm, Eh, Ugh
The host is a disaster.
What an annoying interviewer.
Is this a comedy ?