Why is there a Macroscopic Universe? (Nima Arkani-Hamed)

[@rauladdams5709]

I can listen to this brilliant fellow lecture for hours and hours. He gets going and its a whirlwind of genius. Love it. Thanks for the upload ❤

[@apollion888]

I like the assertion: give a professor enough time, food and graduate students and they can figure out anything. Even though I can't follow much of the math, I greatly enjoy Nima's talks

[@Donny.Ford.79]

I can't believe you broke it down to a level that understand. Your interpretation step by step was pretty much spot on. Quit it I hear your inner voice saying I know Genius level right... Lol just kidding around. Thank You Dr.

[@davetheboy91]

Nima makes male pattern baldness look good - keep pioneering, bro

[@TheYourbox]

Finally we got somebody with all the complexity in his head and can tell so easily.

[@brendawilliams8062]

It’s like simply 59049 is as close to 3133 you are going to get to the atom on your big toe wherever it’s moving forwards to

[@gibsonblogger]

link to the next day's lecture Space-Time, Quantum Mechanics and the Multiverse (Nima Arkani-Hamed) kzbin.info/www/bejne/fKO3opKjZtV_sJo

[@shirleymason7697]

Once again. Thank you for opportunity to see/hear.

[@fungiside]

Great talk! Wish there was a link to the discussion he mentioned repeatedly.

[@wntu4]

You didn't look very hard. They were published the same day. kzbin.info/www/bejne/fKO3opKjZtV_sJo

[@legendarylightyagamiimmanu1821]

David EXACTLY WHAT I WAS THINKING LMAO

[@gibsonblogger]

link to the next day's lecture Space-Time, Quantum Mechanics and the Multiverse (Nima Arkani-Hamed) kzbin.info/www/bejne/fKO3opKjZtV_sJo

[@GeezerBoy65]

So where is that second talk he mentions at the beginning available online?? Not the Q&A video to this first talk, but the one he says he's giving on the next day. Anywhere online?

[@infinitecrux6859]

I think this might be what you're looking for: kzbin.info/www/bejne/fKO3opKjZtV_sJo

[@robbie_]

I have to admit that current fundamental theories do have a kind-of epicycle feel to them. I'm sure there's something really important we're missing.

[@andrewferg8737]

“and a threefold cord is not quickly broken” (Ecclesiastes 4:12)

[@catmaemaecat]

@@andrewferg8737 care to elaborate

[@andrewferg8737]

@@catmaemaecat Just noting the often recognized correspondence of inherent relations. That is, 'relation itself' is the "thing". The most notable historical figures in maths, physics, theology, psychology,, etc... have all seemed to agree on this point, albeit from different perspectives. "It is clear that these physical-only processes somehow on the one hand give us the right answers, but on the other hand that they are controlled by another world of ideas somehow; they’re coming from somewhere else.” (Nima) “As a consequence of relativity and quantum mechanics all the interactions in the universe ultimately arise from elementary interactions between three particles" (Nima) “and a threefold cord is not quickly broken” (Ecclesiastes 4:12)

[@davidwilkie9551]

On topic, "There's no wrong question or answer", if the context and content of relevance are mismatched, ie in the "Not even wrong" conceptually, (Socratic) philosophy. For those who know how a Laser is "pumped" before reflecting the nodal-vibrational, orbital-orbit states around the crystalline line of bonding, the ubiquitous-universal superposition property of frequency aligned wavelengths, Reciproction-recirculation Singularity e-Pi-i fractal function, exceeds the tuned length of the device and emits a pulse of the reflected wave. The same mechanism applies to the Universe in every detail of its Being. You can figure it out, if you are willing to trust in your own included self in this mechanism. Ie it's all about tuning and timing, that is it, that is all.

[@RobSinclaire]

Hey! Good camera work too!

[@ChrisMMMMerritt]

The comments here are idiotic. Great lecture.....

[@Sixstringman]

When are they not though? It's best to just pretend the comments section doesn't exist in videos like this.

[@stopthephilosophicalzombie9017]

Anyone looking for edification in KZbin comments section is lost from the start.

[@mmccrownus2406]

I do believe in the MultiUniverse Model, especially in the version where their is only one universe.

[@draskovicirena]

Nima and Donald Hoffman should talk soon

[@dennycote6339]

They did, hahaha. Explain your theory behind THAT prediction. Right on!

[@IgorSavtchenko]

Thank you for sharing this video!

[@ezza88ster]

I don't understand the 'Delta Observed = Delta Classical + Delta Quantum' argument (at 24 mins); which seems to be a central piece. He seems to be arguing that the 'Delta Classical' term subtracts120 decimal places (as a kind of constant) in order to give us 'Delta Observed = Delta Quantum'. But surely 'Delta Classical' has to subtract 120 orders of magnitude (in terms of a CONTRACTION of space-time) instead. IE. to do away with the 120 orders of magnitude of expansion that is unobserved, though predicted. What am I missing? Any comments gratefully appreciated. Nima, you out there mate?

[@i6g7f]

Brillant talk!

[@TheCheapPhilosophy]

Well... It is 2021. Have we got big new principles or a bigger paradigm?

[@jamesdolan4042]

There has been no greater promoter of Einstein's, General Theory of Relativity, Special Theory of Relativity, and the Photoelectric effect than Brian Greene. Now Nima has made the assertion that "space-time" a key component of General Relativity does not exist beause it is completely at odds with Quantum mechanics. Maybe then Nima and Brian Greene should discuss their different perspectives on a publc forum for the rest of us.

[@das_it_mane]

Nima and Brian Greene are both string theorists. They largely agree on most things.

[@vicachcoup]

Fantastic talk. v good speaker

[@kaczan3]

The spin 2 is in black as if it was confirmed, but isn't it purely theoretical?

[@quarkraven]

+kaczan3 yes but many theoreticians take it as a given because their entire theoretical framework would collapse if not true - i'm referring especially to string theorists, brane theorists, etc.

[@Saerwen_Celeste]

I cannot find part 2 of this, does anyone have a link they can share please? I see some short Q&A from this lecture but I am more interested in his personal take on what's "going on" that he mentiones would be in part 2.

[@_aje]

Part 2 ----> kzbin.info/www/bejne/fKO3opKjZtV_sJosi=1DejJJONP2R-Mv3g

[@nm-com]

i dont get why so many scientists misunderstand the anthropic principle. Finetuning of natural constants has nothing to do with cosmology. All scientists do when finetuning, is to look at how delicate and complex physics became as a description of our world. change the language slightly and you will end up with nonsensical jibberish. it doesnt mean, that this nonsensical jibberish actually exists anywhere out there. i personally spoke to prof. Oberhummer in 1998, who introduced the anthropic principle. he wasnt fond of this misuse either. it just shows how frustrated scientists are with their role in society, seeking deeper meaning of their work than there is.

[@futureselfnow]

is anyone else here listening to this genius hoping at some point to understand something? 😅 i keep trying so that maybe my subconscious will make sense of it. 🤓

[@brendawilliams8062]

He helps inspire you to continue. Sometimes thinking some theories might be wrong helps. Sometimes to think someone’s theories may right helps. Your work is personal to you. Sometimes your thoughts are personal to you. You need both faith and work.

[@80thiconoclast]

His slides look like they could be from a Wes Anderson film.

[@mrhassell]

I watched a "free" documentary on Time on KZbin yesterday. It claimed that "The weak force is Gravity," which is misleading. I felt compelled to correct the publishers by explaining that gravity is neither a weak force nor a force at all. It is actually the consequence of mass interacting with space, creating a gravity well that causes our planet to orbit the sun. The smallest possible black hole that can exist is limited by the Planck mass. This can be calculated by taking the square root of the reduced Planck constant multiplied by the speed of light and then dividing by Newton's gravitational constant. This mass is approximately 10^-8 kilograms. If gravity were stronger-if Newton's gravitational constant were larger-then it would be possible to create even smaller black holes. You get what you pay for, has never been more true.

[@DaMonster]

Good point! I think in the modern terminology, gravity is a force, at least in the sense that most interactions are forces. Gravity is the coupling of matter fields (the right-hand side of Einstein's field equations) to the metric/curvature of spacetime (the left-hand side). This coupling is weak! This is just like how, in electromagnetism, the current (four-vector) source field is coupled to the electromagnetic (tensor) field. This coupling is much stronger.

[@Darhan62]

Einstein: Space and time are just aspects of spacetime and have no independent existence. Arkani-Hamed: Spacetime doesn't exist except as an "emergent approximation" of a more fundamental reality.

[@causalityismygod2983]

Time and space are not conditions of existence, time and space is a model for thinking.” Einstein.

[@MakeMeThinkAgain]

I'm bailing at 6:50 but I have to comment that, from a philosophical perspective, we are locked in a room where we can't directly observe the universe. (See epistomological skepticism) So we do have to ask the question Does QM and Relativity describe something that really exists? But that's not what this lecture is about.

[@dennycote6339]

1 week before i saw a UFO, i saw Nima talk about this based on the Amplituhedron video from the YT algorithm. Hes discussing things i've pondered since i could read. Its my understanding that there is a geometric mathematical substructure which underpins spacetime. The infinities we experience as Singularities which form event horizons at both ends of the size scale cause no such troubles in geometry and math. Perhaps we are experiencing a procedurally generated high defenition holographic simulation. Per Goedel we wont find a material expression of it, the large universe we experience as large creatures made of small things, is a set of inertial frames and no proof for the idea of its existence can be derived from the rules that govern the sets existence. Is this why math so effectively explains reality?!

[@LiLi-or2gm]

I keep wanting to brush his hair back and putting it into a ponytail or bun. That said, I love his lecures and this subject matter (and all theoretical physics)! : )

[@Achrononmaster]

Devolving into multiverse explanations is so disappointing. I tend to think folks like Penrose and Ellis have the better attitude on such questions. But I just love the way Nima links the small and large scales. Few other physicists bridge these gulfs. You could say Susskind and Maldacena do, but Juan's talks are so cerebral they are not so entertaining. So thanks Nima. His hair is receding because his brain is emitting a lot of radiation. Only trouble is, like Feynman, after hearing Nima talk you think you could almost do some bleeding edge theoretical physics. Doh! Turns out to be a little tricky!

[@andrewferg8737]

“and a threefold cord is not quickly broken” (Ecclesiastes 4:12)---

[@naimulhaq9626]

Extremely interesting and important lecture on the front line of physics of fine tuning and the Standard Model, by NIMA, who is a rare breed who dwells in finding the little known and rarely admitted reality of the anthropic principle, leading to unearthing the mystery of fine tuning, intelligent design and the role of the universal probability wave function, governing everything in the universe, from photosynthesis that produces food for all plants and activates our five senses, our brain and all our cells employing quantum computing capacity using entanglement, tunneling etc., even the black holes are quantum phenomenon. Fine tuning (FT) and intelligent design (ID) have no explanation in physics. However, phase transition of non-life matter to life (due to self-organizing property of matter), is. Similar phase transition can be imagined to have self-simulated conscious observer that collapsed the Feynman's quantum field into fine tuned particles, like in the double slit experiment in QM, implying intelligent design that created life and human consciousness, with perfection and with probability one, implying divine purpose. 'A priori' nature of mathematics, according to Max Tegmark, implies 'the mind of god'.

[@brendawilliams8062]

A mind has a left and right side. You could easily get epilepsy. We wouldn’t want AI to suffer. He is very engaging Professor.

[@guidokuhn1275]

The new field study of the-nE state at 273'15. Is that it is produced by the M.Q.D., not the Q.G.D. A inverted magnetic field state. Q.G.D. is the product.

[@holgerjrgensen2166]

The three dimensions is Micro- Medio- and Macro-Cosmos, the Life-Unit-Principle, and the Perspective-Principle plays a major role in this question.

[@sylviarogier1]

Why is the universe big? Maybe to accommodate all the big elephants. : )

[@Daryoushatami]

The greasy enemy of life and Being is Time,real or virtual they replace in science what in morality we will call Good & Bad

[@andrewferg8737]

“and a threefold cord is not quickly broken” (Ecclesiastes 4:12)

[@deardeadpeoplewithunclecc8749]

Uncle CC here! Let Uncle CC help you balance the equation. from C.C. Arshagra, creator of the I Do Not Know Show, The Divide & Conquer News Report, and Dear Dead People with uncle CC. Also an awarded poet, publisher, and multi-medium artist.

[@brendawilliams8062]

Thankyou

[@draskovicirena]

'universe seems impossible' - indeed, when you think of it, nothing is possible but 'nothing' can be expressed as '0' and '0' can be a result of maybe an infinite amount of equations; I'm probably wrong

[@rclark7083]

If your unique consciousness doesn't possesses adequate specificity to select for a unique string theory universe out of the 10^500 possible in the Multiverse, then you're living in someone else's universe. 😃

[@Incognito-vc9wj]

Therefore if you select such a theory for your universe, the foundation of your Universe is based on belief and faith. Not much different than religion. Thus one should not believe in anything that is not their direct experience.

[@lucyoriginales]

I believe you forgot a simple equation: as above as below. Now found Higgs, Quantum Computing doesn’t sound weird to you? I would be worried about finding something that gives me that Higgs process. We’re fucking crying for two bits. 😂

[@frun]

The universe is big so that big macs would fit in

[@stevebutrimas9972]

Who are the many people that say space time doesn’t exist.

[@kaczan3]

Reminds me of "Just Six Numers".

[@marcusderinger8892]

We have to remove the reference point

[@lucyoriginales]

That thing has lots... and I’m sure there might something hiding but well... you know how it goes.

[@willypataponk]

great great great !

[@donfox1036]

I don’t understand the opposition to deshitter space. It seems to me important for all of us for the process of getting rid of waste materials in our bodies. After all, how much spacetime would it take?

[@charliesteiner2334]

This is not what the Higgs field is or how it works... the Higgs mechanism was specifically proposed to explain the surprising mass of force particles (the W and Z bosons). It is not responsible for the mass of the electron, nor does it have a mass on the Planck scale. It is actually pretty distressing how mishandled the Higgs was, because it means there might have been lots of other wrong things that I don't know enough to spot.

[@shirleymason7697]

Charlie Steiner .......so be sure and tell us about it.

[@alberteinstein2834]

Charlie Steiner Good point

[@AlamKhan-pv4jp]

only string theory can be done in room and the results will be similar to getting magnetic monopoles .....bullshit...

[@48acar19]

N.Asadi: I can bet that if Nima Hamed would go to Iran to give a speech, he would be put to death by the holy mullahs for not mentioning the prophet Muhammad!

[@Dr_LK]

What exactly has this guy achieved for the last 10 years? All his videos are the same thing... and on top of that he never uses proper slides, just handwritten ones!

[@causalityismygod2983]

He means space time is a shadow of god...

[@lepidoptera9337]

He has gotten smarter while you have been drinking your brains away. ;-)

[@DaemonJax]

This isn't a coding error, otherwise it would be _consistently_ wrong across all counties. It could be an input error -- either user error inputting the data into the app itself OR, perhaps, if they're manually taking the data off the server and entering the data by hand into some other parsing program... similar to a copy and paste error. In any case, the inconsistency was caused by human hands. If these inconsistencies turn out to _only_ negatively affect Bernie and Warren (the only progressives), then it's _definitely_ done on purpose.

[@pbradgarrison]

I don't understand how saying "the universe is big" can have any meaning. Big compared to what?

[@ezza88ster]

I think he means big compared to the the atomic and sub-atomic interractions that give rise to it materially, and domintate it.

[@kotodama56]

Nima, lay off the caffeine, dude!

[@mediocrates3416]

It should be called the noothropic principle; then "relativity" would be a mic drop. ... Multiverse/mass/relativity... hmmmm.

[@hardwilli]

Tripe. A masterclass in incredulity.

[@GeezerBoy65]

And your public credentials are?

[@hardwilli]

@@GeezerBoy65 - That I know what tripe is and incredulity means.

[@hardwilli]

@Pisstake - Boy howdy Nietzsche, you nailed it!

[@Etimespace]

i already found out how eternal universe works.

[@kmmahendra9205]

Can you explain it

[@Etimespace]

@@kmmahendra9205 Yes i can. Read my comment in this video 😃 kzbin.info/www/bejne/aqjKdWynfamXrqc 🙂

[@kmmahendra9205]

@@Etimespace do u have answers to as how matter came into existence?

[@Etimespace]

@@kmmahendra9205 Did you already read my comment in this video? kzbin.info/www/bejne/aqjKdWynfamXrqc New expanding stars and new expanding visible matters was born when to expanding supermassive concentrations collide with eachothers. 🤔

[@kmmahendra9205]

@@Etimespace no no, my question was how did all the matter came into existence at first place, dating back and before bigbang.

[@N0Xa880iUL]

Uh um

[@leonellimon969]

Jelly Roll #1

[@MrGOTAMA420]

its big because my ego is in it and its almost infinite

[@Simonjose7258]

Tomorrow tomorrow tomorrow... The sun'll come out! I'm so not paying attention 🤤😵😕 "vacuum energy equals zero..."🤯

[@uberXserial]

"ukay?"

[@Simonjose7258]

10 to the minus 120 degrees... Proceed!

[@РодионЧаускин]

Harris Robert Allen Nancy Hernandez Kevin

[@Mrbfgray]

This is God speaking: I fine tuned it to be just enough to tease and torment y'all. Going back into hiding now.

[@andrewferg8737]

But your conscience will still speak to you.

[@Mrbfgray]

@@andrewferg8737 Yes and that starts with honesty which starts with not bullshitting myself.

[@andrewferg8737]

@@Mrbfgray A materialist reductionism is a type of self-delusion.

[@Mrbfgray]

@@andrewferg8737 What's your point? I should buy into any random god assertion as factual then? There are thousands, throw a dart to pick one.

[@andrewferg8737]

@@Mrbfgray As a Catholic, I recognize that all truth belongs to God and I therefore do not negate nor despise true reflections of God from different cultures. I would suggest that comparative religion is not a problem of "pick & choose" but of one of recognition. If I may employ a metaphor: One may have over the years collected many photos of their loved one; some as an infant, some as an adult, even some in crazy Halloween costumes, or from strange angles. Of course, there are favorites among all these photos and some photos are more true-to-life than others. Yet, despite all the vagaries of time and photography, one recognizes their loved one in every one of the pictures. Now if you were to show them a photo of someone else, a stranger, they would immediately notice. So too, "My sheep hear my voice, and I know them, and they follow me... A stranger they will not follow... And other sheep I have, which are not of this fold: them also I must bring, and they shall hear my voice; and there shall be one fold, and one shepherd." (John 10)

[@stopthephilosophicalzombie9017]

I'm sure this dude has a beautiful skull. He needs to just let go.

[@andrewe3165]

It would drive me mad if I had to work with this guy. He would have to be in an office in the deep basement.

[@andrewe3165]

Mediocre trolling bruh. A for effort though.

[@andrewe3165]

Also your sentence structuring needs some work. Do you even english bruh?

[@parker9785]

+Andrew E nice meme

[@andrewe3165]

Parker Carter whut

[@legendarylightyagamiimmanu1821]

Andrew E Kal definitely got you though so now all you had to do was take it dumbass.

[@ycong4689]

He walked too much. Distracting….

[@Atmanyatri]

I’m so sorry but he’s not a good explainer

[@wulphstein]

And this whole idea that human beings are irrelevant to an uncaring universe is just negative thinking. It is more likely that consciousness exists as higher dimensional vibrations in a vertical system of of quantum wavefunctions. The highest layers are the easiest to express consciousness because expressing consciousness takes less energy, less effort for a consciousness.

[@andrewferg8737]

“and a threefold cord is not quickly broken” (Ecclesiastes 4:12)---

[@lucyoriginales]

Maybe you should check your emails... might like what I’ve sent you.

[@Seekthetruth3000]

The whole thing is a simulation and the master programmer is called God.😮😮😮😮

[@andrewferg8737]

As an update to the Flatland story, consciousness is programed into the characters so that they can gain an awarness the external reality.

[@MechanicalSnail]

He should so shave his head

[@shirleymason7697]

BuggyOP .......and he could point out flaws in you, if he were as rude.

[@mattsmiddy40]

he looks cool as fuck, and hes more brainy than you., lots more brainy than you,lol.

[@f.jideament]

He is looking like the big brother of Adam Jones from Tool. Both of them ugly af just like me and I like that.

[@wulphstein]

Let's face it, philosophical cosmologists are not describing the simplest and best explanation why anything is here at all. The best explanation is my explanation. Consciousness exists along a vertical spectrum, from most dense (in the spacetime continuum) to increasingly higher levels of consciousness which exists within wavefunctions that are increasingly easier for consciousness to express itself.

[@Etimespace]

i think, i have a answer for you.

[@joet840]

More talking than substance.

[@heilamessy]

screw cosmos. he needs to hit the gym. he doesn't have any muscles. look at his arms. yes he is a very brilliant physicist and thinker. but he needs a healthy body too.

[@whatsupwithafrica]

What?

[@guernica69]

Dude, totes. I could fully take him down in an arm-wrestling contest, not a doubt in my mind. Thumb-wrestling? That too. I'd follow up with a titty-twister indian-burn simul-swirly upside the head then I'd bench press the shit out of his cerebral ass. Three, four sets even and as many reps AS I WANT. Healthy body, healthy mind- that's what I always say.

[@ronaldderooij1774]

OMG we also have gorilla's watching this video...

[@heilamessy]

Ronald de Rooij as well as an as*hole like you.

[@heilamessy]

with your description of Gorilla hairy ass, it seems that you lived there for quite a while. no wonder your comments stink like hell.

[@calworthingtonjr.8819]

His hair disqualifies the entire lecture.

[@legendarylightyagamiimmanu1821]

Cal Worthington Jr. dumbass.