Leonard Susskind - Why is Quantum Gravity Key?
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- Опубликовано: 13 июн 2020
- Quantum theory explains the microworld. General relativity, discovered by Einstein, explains gravity and the structure of the universe. The problem is that the two are not friends; they do not get along, they are not compatible. But they must. That's the task of quantum gravity.
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Leonard Susskind is the Felix Bloch Professor of Theoretical Physics at Stanford University, and Director of the Stanford Institute for Theoretical Physics. He received a BS in physics from City College of New York and a PhD from Cornell University.
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I am grateful that these rich minds exist in a culture where it seems to me that many are more interested in the latest celebrity's foibles or daily, horrible event. Thank-you for pushing further the beauty of human creativity and curiosity!
That's why you never look to the masses for real things. It's all a jumble of emotion and beliefs
Hyphenated 'thank you' *shudders*
Amen
Ahh an interviewer who knows this is a conversation and not a list of questions.
I think it’s more that this particular interviewer is informed enough on the relevant subject matter to be able to rise to the occasion of having a conversation about it, whereas someone who isn’t informed would be forced to read from a script, ask questions from a list, and nod and smile helplessly as their subject responds.
*its really hard to find interviewers whose questions are on point.*
*And Leonard susskind is the perfect explainer of 21st century*
Why bold?
WHO!!!???
SUSKIND???
One of the more cricker ever sound in Science.
He is the perfect example of a guy who has an unsurpassable ego that's is and perfectly ignorance: he assume mathematical beauty means truth. Only Feynman surpassed him in this stupid conception of physical reality. uwww.highdeftapetransfers.com/products/dlv-stravinsky-lhistoire-du-soldat-robert-mandell-ars-nova-redux-pure-dsd?_pos=1&_sid=e16669713&_ss=rtable to perceive
Sit boo boo
Um.. _‘unsurpassable ego that's is,’_ _‘perfectly ignorance’-_ can't even parse what this guy is putting together.. may be they are using a language deceptively close to English that I'm perfectly ignorance about.
It does appear the interviewer has some actual knowledge on the subject
I am a 27 years old Physicist based in Nigeria. I'll be glad to meet professor Leonard Susskind in person. He is my role model
I thought this was going to ask me for a western union wire transfer. Pleasantly surprised!
@@halohaalo2583 pure gold LOL
@@ahmeth.k.2566 LOL Nigerian Prinsicist
those dramatic zoom ins to the interviewer made me think he was gonna break out shouting a theory of his own, at any moment.
Although they seem controversial, personally I like the cuts. Seems more dramatic, or I suppose about as dramatic as a conversation about theoretical physics can be.
Susskind is one of my favorite minds. His clarity of explanation is possible *only* by a deep thoughtful understanding.
I think he will go down as one of the greats simply due to his ability to explain
@@kingoffire9373 THE CLEAR AND UNIVERSAL MATHEMATICAL PROOF THAT E=MC2 IS F=MA:
Gravity IS ELECTROMAGNETISM/energy, AS E=MC2 IS F=MA. The Earth (A PLANET) is a MIDDLE DISTANCE form that is in BALANCED relation to the Sun AND the speed of light (c), AS the stars AND PLANETS are POINTS in the night sky; AS E=mc2 IS F=ma. ACCORDINGLY, gravity AND ELECTROMAGNETISM/energy are linked AND BALANCED opposites; AS E=mc2 IS F=ma; AS ELECTROMAGNETISM/ENERGY IS GRAVITY. E=mc2 IS F=ma. This NECESSARILY represents, INVOLVES, AND DESCRIBES what is possible/potential AND actual IN BALANCE. Very importantly, outer "space" involves full inertia; AND it is fully invisible AND black. SO, the Earth constitutes the FULL DISTANCE in/of SPACE in BALANCED and UNIVERSAL relation to what is the MIDDLE DISTANCE in/of SPACE; AS E=MC2 IS F=ma, AS ELECTROMAGNETISM/ENERGY IS GRAVITY !!! INSTANTANEITY is thus FUNDAMENTAL to what is the FULL and proper UNDERSTANDING of physics/physical experience, AS E=mc2 IS F=ma; AS ELECTROMAGNETISM/ENERGY IS GRAVITY. INDEED, TIME is NECESSARILY possible/potential AND actual IN BALANCE; AS E=MC2 IS F=ma; AS ELECTROMAGNETISM/ENERGY IS GRAVITY. SO, time DILATION ULTIMATELY proves (ON BALANCE) that ELECTROMAGNETISM/ENERGY IS GRAVITY; AS E=MC2 IS F=MA !!! GREAT !!! BALANCE and completeness go hand in hand. Indeed, it ALL CLEARLY makes perfect sense.
Gravity IS ELECTROMAGNETISM/ENERGY. A PHOTON may be placed at the center of what is THE SUN (as A POINT, of course), AS the reduction of SPACE is offset by (or BALANCED with) the speed of light; AS ELECTROMAGNETISM/ENERGY IS GRAVITY; AS E=MC2 IS F=MA. (The stars AND PLANETS are POINTS in the night sky.) "Mass"/ENERGY IS GRAVITY. ELECTROMAGNETISM/ENERGY IS GRAVITY. Indeed, gravity/acceleration involves BALANCED inertia/INERTIAL RESISTANCE; AS ELECTROMAGNETISM/ENERGY IS GRAVITY; AS E=mc2 IS F=ma. Accordingly, the rotation of the Moon MATCHES it's revolution. GRAVITATIONAL force/ENERGY IS proportional to (or BALANCED with/as) inertia/INERTIAL RESISTANCE, AS ELECTROMAGNETISM/ENERGY IS GRAVITY; AS E=mc2 IS F=ma. Gravity IS ELECTROMAGNETISM/energy. This NECESSARILY represents, INVOLVES, AND describes what is possible/potential AND actual IN BALANCE. Gravity AND ELECTROMAGNETISM/energy are linked AND BALANCED opposites, AS E=mc2 IS F=ma; AS ELECTROMAGNETISM/ENERGY IS GRAVITY !!!
By Frank DiMeglio
WHY ELECTROMAGNETISM/ENERGY IS UNIFIED AND BALANCED WITH/AS WHAT IS GRAVITY:
Gravity AND ELECTROMAGNETISM/ENERGY are LINKED AND BALANCED opposites, AS ELECTROMAGNETISM/ENERGY IS GRAVITY. Therefore, Einstein's equations and Maxwell's equations are unified (given the addition of a fourth spatial dimension); AS E=mc2 is DIRECTLY and fundamentally derived from F=ma; AS TIME DILATION proves that electromagnetism/ENERGY IS GRAVITY. ACCORDINGLY, Einstein's equations predict that SPACE is expanding OR contracting in and with TIME; AS ELECTROMAGNETISM/ENERGY IS GRAVITY. GREAT !!! (Very importantly, outer "space" involves full inertia; AND it is fully invisible AND black.)
Gravity/acceleration involves BALANCED inertia/INERTIAL RESISTANCE, AS ELECTROMAGNETISM/ENERGY IS GRAVITY. Accordingly, the rotation of the Moon MATCHES it's revolution. "Mass"/ENERGY involves BALANCED inertia/INERTIAL RESISTANCE consistent WITH/as what is BALANCED electromagnetic/gravitational force/ENERGY, AS ELECTROMAGNETISM/ENERGY IS GRAVITY. Accordingly, objects fall at the SAME RATE (neglecting air resistance, of course); AS ELECTROMAGNETISM/ENERGY IS GRAVITY.
Gravity IS ELECTROMAGNETISM/ENERGY. A PHOTON may be placed at the center of what is THE SUN (as A POINT, of course), AS the reduction of SPACE is offset by (or BALANCED with) the speed of light; AS ELECTROMAGNETISM/ENERGY IS GRAVITY. Energy has/involves GRAVITY, AND ENERGY has/involves inertia/INERTIAL RESISTANCE. THE SUN purely exemplifies time DILATION. INSTANTANEITY is FUNDAMENTAL. Time DILATION proves that electromagnetism/ENERGY IS GRAVITY, AS E=mc2 is DIRECTLY and fundamentally derived from F=ma. "Mass"/ENERGY IS GRAVITY. ELECTROMAGNETISM/ENERGY IS GRAVITY. Gravity/acceleration involves BALANCED inertia/INERTIAL RESISTANCE, AS ELECTROMAGNETISM/ENERGY IS GRAVITY. GREAT !!!
The stars AND PLANETS are POINTS in the night sky. Let's compare this directly with BOTH a falling object AND the speed of light (c). Great. E=mc2 IS F=ma. Gravity/acceleration involves BALANCED inertia/INERTIAL RESISTANCE, AS ELECTROMAGNETISM/ENERGY IS GRAVITY. GRAVITATIONAL force/ENERGY IS proportional to (or BALANCED with/as) inertia/INERTIAL RESISTANCE, AS ELECTROMAGNETISM/ENERGY IS GRAVITY. Gravity IS ELECTROMAGNETISM/ENERGY. This NECESSARILY represents, INVOLVES, AND describes what is possible/potential AND actual IN BALANCE. Time DILATION proves that electromagnetism/ENERGY IS GRAVITY, AS E=mc2 is DIRECTLY and fundamentally derived from F=ma. INSTANTANEITY is FUNDAMENTAL to the FULL and proper understanding of physics/physical experience. Ultimately and truly, TIME is possible/potential AND actual IN BALANCE; AS ELECTROMAGNETISM/ENERGY IS GRAVITY. The ultimate unification of physics/physical experience combines, BALANCES, AND includes opposites, AS ELECTROMAGNETISM/ENERGY IS GRAVITY. GREAT. It ALL makes perfect sense. THINK !!!
The Earth that undergoes time DILATION IS thus represented (ON BALANCE) as what is A POINT in the night sky, AS ELECTROMAGNETISM/ENERGY IS GRAVITY. (So, notice that the BLUE SKY IS no longer visible. Think.) E=mc2 IS F=ma. It is FULLY proven. Gravity IS ELECTROMAGNETISM/ENERGY. ELECTROMAGNETISM/ENERGY IS GRAVITY. Alas, the INTEGRATED EXTENSIVENESS of THOUGHT (AND description) is improved in the truly superior mind. I have truly, CLEARLY, AND MATHEMATICALLY unified physics/physical experience. OVERLAY what is THE EYE in BALANCED RELATION to/WITH what is THE EARTH. (Notice the black space of THE EYE, AND the DOME of a person's eye is ALSO visible.) THE EARTH is ALSO blue. Again, E=mc2 IS F=ma. The stars AND PLANETS are POINTS in the night sky. Time dilation proves that E=mc2 is DIRECTLY and fundamentally derived from F=ma, AS electromagnetism/ENERGY IS GRAVITY. It ALL makes perfect sense. Gravity IS ELECTROMAGNETISM/ENERGY. ELECTROMAGNETISM/ENERGY IS GRAVITY. BALANCE AND completeness go hand in hand.
By Frank DiMeglio
Thank you, Dr. Susskind for using ordinary words to blow my mind!
God he's wonderful - I could listen to him forever !
Many thanks.......all the way from London.
He is more intelligent than 99.9% of the population can even comprehend, but Mr Suskind never comes off as he’s talking down to a horde of idiots
Quite amazing & admirable
@@davidfuller1061 this man reminds me of just how little i truly understand anything!!!!!!
@@williamhardes8081
Yes… allot of “Physics Crackpots” are completely lacking in the self knowledge of their own ignorance in the subject. A good constant foundation of knowing ones lack of understand is very helpful
Some crackpots seem to be clinically delusional
Most of the time I try to keep in mind I am essentially groping in the dark making small bits of gains in knowledge & understanding
For me there is a giant ravine between fluid dynamics & electrodynamics I can’t get over
@@davidfuller1061 fluid dynamics, ahhhh- sort of, electrodynamics, might as well ask a monkey. lol. my groping and bumping off walls so to speak has led me to the conclusion that i need somebody to help me create a tube of space time, any takers? i asked a university prof about that and all would tell was tell me that, a wise man once said, "i can use string theory to explain why the expansion of the universe is accelerating but i can't buy a large enough ball of string?" i said, who was that he said "me ".
@@williamhardes8081 I understand the fundamentals better than he does by far. WHY AND HOW EINSTEIN'S FIELD EQUATIONS ULTIMATELY AND CLEARLY PROVE THAT E=MC2 IS F=MA IN WHAT IS A BALANCED FASHION, AS ELECTROMAGNETISM/energy is gravity:
C4 proves that electromagnetism/ENERGY IS GRAVITY. E=MC2 IS F=ma. This NECESSARILY represents, INVOLVES, AND DESCRIBES what is possible/potential AND actual IN BALANCE, AS ELECTROMAGNETISM/energy is gravity. (The sky is BLUE, AND what is THE EARTH is ALSO BLUE; AND the stars AND PLANETS are POINTS in the night sky !!!) Gravity AND ELECTROMAGNETISM/energy are linked AND BALANCED opposites, AS E=MC2 IS F=ma; AS ELECTROMAGNETISM/energy is gravity. TIME dilation ULTIMATELY proves ON BALANCE that E=MC2 IS F=ma, AS ELECTROMAGNETISM/energy is gravity. Gravity/acceleration involves BALANCED inertia/INERTIAL RESISTANCE, AS E=MC2 IS F=ma; AS ELECTROMAGNETISM/energy is gravity. (Accordingly, the rotation of WHAT IS THE MOON matches it's revolution.) TIME is NECESSARILY possible/potential AND actual IN BALANCE, AS ELECTROMAGNETISM/ENERGY IS GRAVITY ON BALANCE; AS E=MC2 IS F=ma. Gravity IS ELECTROMAGNETISM/energy. (Very importantly, outer "space" involves full inertia; AND it is fully invisible AND black.) GRAVITATIONAL force/ENERGY IS proportional to (or BALANCED with/as) inertia/INERTIAL RESISTANCE, AS E=MC2 IS F=ma; AS ELECTROMAGNETISM/energy is gravity ON BALANCE !!! It all CLEARLY makes perfect sense, AS BALANCE AND completeness go hand in hand. SO, C4 ultimately and CLEARLY proves ON BALANCE that ELECTROMAGNETISM/energy is gravity; AS the stars AND PLANETS are POINTS in the night sky; AS E=MC2 IS F=MA ON BALANCE !!!
GREAT !!!!!!!
By Frank DiMeglio
What an amazing, modest man who has contributed so much to our world
"The question is not how the phenomenon must be turned, twisted, narrowed, crippled so as to be explicable, at all costs, upon principles that we have once and for all resolved not to go beyond. The question is: "To what point must we enlarge our thought so that it shall be in proportion to the phenomenon.""
Schelling, Philosophie der Mythologie.
I like the way Einstein was able to simply observe the “phenomena” twisting and turning it to do so but never crippling it. He must have known a creator (especially a singularity like the universe) could not be more personal than by being one with its creation. So, why would he say he did not believe in a “personal god”?
For me the “optical delusion” of mankind is a deliberate one that allows our creator to fulfill its needs of love belonging purpose esteem self actualization and self ascendancy. The physical universe created to further enhance those needs as we use them to fulfill The Purpose of Life, which is the Pursuit of Happiness. The first I AM did not have the luxury of being born into a universe of such diversity and beauty as each of us are born into. The first I AM upon becoming aware of its existence, had to create the answers to all those questions of “who where when why and how” I AM? That is why God will never prove he exists. God wants to allow us to have the same experience of creating our own lives or universe that he had creating his. .. Just take that little bit of light... that disturbance in the nothingness of space. Recognize its frequencies when it moves and assign those frequencies Mass so you can store that information according to the minus one law of the conservation of information within this ever expanding universe and use it in terms of the angstroms decibels and wave pressures to create the sights and sounds and experiences of this virtual particle perception of reality of the quantum wave field that gives our life meaning as Einstein pointed out “ “It would be possible to describe everything scientifically, but it would make no sense; it would be without meaning, as if you described a Beethoven symphony as a variation of wave pressure.”
If string theory looks back to the past and puts einstines discovery to the time of the eygptian they would find there is enuf energy to prove it experimentally. Possibly
@@agodfortheatheistnow No, the truth is much more simple than that. We are most likely the first "I AM" with nothing but unconscious, meaningless chaos before us. We are the first spark, the ones who put meaning to an otherwise chaotic nothing. We are ones who created love and hate, good and evil, and time itself. We are the ones who created the gods because the possibility meaninglessness, because then we have to create meaning ourselves. The irony is that we create things to give us meaning without realizing that we are the ones that gave meaning to those creations in the first place. And with all of that being said, if a higher being or higher beings did create us, It/They went through a lot of trouble to make the universe look like It/They didn't, probably so that we could create meaning for ourselves independently as if we were the first.
Wow, I was really tired because I don't even remember righting that
A Very very true comment !.....Moreover, I would like to politely challenge 'Closer to the truth' or Leonard Susskind himself to answer the following questions:
1. Have we EVER had an observation whereby an object at the sub atomic scale (let's say between nucleus and 'electron orbit') behaved like it would or does in the macro world where SPACETIME dominates the continuum we humans live in?
2. If not, then since we have NO PROOF of any object ever moving according to the rules of spacetime physics, then WHY do we assume there is spacetime between an atom's nucleus and outer electron shell to begin with? This unholy and unsubstantiated 100 year old human assumption next leads to the ASSUMPTION that we need hypothetical 'quantum gravity', but we (obviously) NEVER saw anything like that either. It appears to me we are trying to solve a problem that we merely created in our head. If we follow Ockham's razor principle, we have to abandon 100 years of stagnation and accept the following more logic train of thought: The very ABSENCE of spacetime defined movement suggests:
3. Our base assumption must be that it would appear the area on the subatomic scale (where QP is dominant) is NOT governed by space-time
4. Since we define gravity as 'a contraction of spacetime', it then logically follows that there CANNOT be gravity on the subatomic scale .
5. If there is no gravity then why look for a quantum theory of gravity. It is contradictive to start with.
To put the above a bit differently; for 100 years we have explained 'particle-wave duality' as a mysterious property of PARTICLES themselves, as if particles have sensors and somehow know how or why to behave differently. This is an incorrect and quite myopic human 'MONO continuum' explanation (sorry Albert, Sorry Niels). First of all, it is incorrect because we don NOT see the PARTICLE behave in a dual way, we see ITS ENERGY behaving in a dual way. A very important distinction! Secondly, it makes much more sense NOT to blame the particle, but its surroundings. In other terms: It would appear we have a DUAL continuum setting dominating the subatomic scale where ENERGY (and NOT space) determines the grid (after all we already express electron orbit distances in eV's). Leonard, I assume you see the inherent logic of this more mature explanation and of course I would not be asking these questions if I did not already have the answers in full with the inherent perfect fundamental symmetry....We have all the answers but just did not realize it.....
For me Susskind is as exceptional as Feynman. That's probably why they got along so well.
0:50 "these are objects... mm about 100,000 times smaller than a atom **cheeky pause** very big". Anyone who combines words like this is surely going to be a friend of Feynman, in my opinion.
ruclips.net/video/6Waurx8e-1o/видео.html
Einstein's happiest thought was the realization that no force is acting on a body in free fall.
He developed General Relativity to describe this fact.
Genreral Relativity tells us that spacetime is a layered manifold of 2-D layers described by the Calculus; and the Calculus of each layer indirectly associates to every other layer..
The manifold interecting within its layers gives rise to energy and energy interacting with energy gives rise to mass, and all massive bodies are simply falling to and from and tangent to all other bodies and energy within the manifold.
The force than attracts particles together is electromagnetism and the force that binds them is surface tension which is also electromagnetism.
There is no room in reality for gravitons because gravity is inconsistent with reality.
Emmanuel Pil I think Murray Gell-Mann was a far more profound thinker with greater contributions. Very underrated. www.theatlantic.com/magazine/archive/2000/07/the-jaguar-and-the-fox/378264/
Can't stand them both.
I simply admire the Professor and also the hole on his t-shirt :D ♥ True physicist indeed.
I never met susskind but as student of physics I have feeling like he is my grandfather 😍😍
Susskind is a legend. I love that he has been on RUclips for so long. His lectures are top notch but amazingly simple. Thanks for all your work!!! Modern-day Feynman.
Thank you for the praise on finding the connection!
Now try to make metal hydrogen and get back to me - your math is missing heat aka pressure
Please ask me to be a part of the thesis
That's a good interview. A constructive talk is much better than a constructive narrative. Leonard Old Man just nail it. Is not the definition for everything, is not complete and even when it's, it may create other questions for a bigger puzzle.
finally we get to hear physicists like Brian Greene and Leonard Susskind be honest about string theory... it's a wonderful thing
I am grateful I can listen to prof Susskind and learn something without all the math in his Stanford lectures which I dont get, being a medical doctor, not a mathematician a physisist
It's amazing how people like Susskind can create mathematical formulas that explain quantum behaviors!
And at the same time he can explain it in (more or less) layman's terms.
It’s nice to hear someone of Susskind’s stature still speaking hopefully about String Theory.
he helped invent it. He speaks of it often
I don't pretend to understand the complex science here, but Susskind has a great intuitive way of explaining the concepts by putting them into context
Susskind is very succinct. Very nice interview.. Kuhn scores another goal 👌👍
Mr. Susskind! This made my day.
Great talk, Susskind is marvelous.
Please get as many interviews as you can from Leonard Susskind. He is absolutely AMAZING!
Great stuff! Reminds me of an old interview I saw with a great QM mind, Paul Dirac. Surprises? I think one big surprise is coming soon. There is no singularity within a BH, and there are subtle emissions that prove it.
what a fantastic educator and ambassador for science. . in situations such as this a non egotistical or biased viewpoint is a hard thing to find. as a non scientist can you please explain the t shirt? thank you.
If the strings are that strong and difficult to break apart, what force is holding them together? Do they also have some type of even smaller force carrying particle?
What would happen if we were able to stretch them? How could we use that to improve the quality of life!
It doesn’t work like that lol
I believe (remember as) this is a part of a bigger interview that I watched earlier; like a couple of years earlier. It would be nice to know the actual date this interview in the information text.
Lot to Learn. The more I learn, the more I respect science and theoretical math. The endgame develops a deep connection with the sandbox we exist in. I concur with all those more knowledgeable, at this stage of the game, PROGRESS is needed and the momentum has plateau'd.
Different neutrons have different mass. I doubt if you're missing much, just seeing it the wrong way, or more like not seeing all of it.
pls do more interviews on other reknowned physicist...and get us closer to understanding reality.
im not going to act like im intelligent enough to know for sure what in string theory is useful and true from what isnt... but in susskind i see a humble man with little ego who's perspective on the field that i can trust
In this video he seems more like a cult leader to be fair.
when was this filmed?
Great interview.
Excellent video. The only suggestion I have would be to turn the comment section off
Yeah, these comments are useless.
Einstein's happiest thought was the realization that no force is acting on a body in free fall.
He developed General Relativity to describe this fact.
Genreral Relativity tells us that spacetime is a layered manifold of 2-D layers described by the Calculus; and the Calculus of each layer indirectly associates to every other layer..
The manifold interecting within its layers gives rise to energy and energy interacting with energy gives rise to mass, and all massive bodies are simply falling to and from and tangent to all other bodies and energy within the manifold.
The force than attracts particles together is electromagnetism and the force that binds them is surface tension which is also electromagnetism.
There is no room in reality for gravitons because gravity is inconsistent with reality.
zerooskul There are two or three comment threads where you haven’t cut and pasted this yet.
@@danpaulson927 There are.
It's copy/pasted.
Cut-and-paste is a method of organizing materials in a unprofessional looking way.
This is cut-and-dried.
Quick tip. Don't read them.
@@ZeroOskul I've always thought the same thing, I'm a little confused on why we need gravitons or a quantum gravitational field, I get that gravity is non-renormalizable but I don't understand why that is a big deal or a problem. I don't understand why people say they're "incompatible" just because gravity can't be a quantum field. I know there must be more to it but it's hard to find information on it.
How about the idea that self perspective moments, is also matter.
We’re so lucky. I could listen to him talk every day.
Susskind has a lot of lectures on RUclips, I highly recommend giving them a watch
5:37 - This is how I imagine a conversation would go between two Minecraft NPC's discussing why their world is as it is, trying to derive the World Seed from basic principles :)
String Theory is and has been a dead end street for quite some time. The truth is we're really no farther along in QM than we were 100 years ago. This is due in no small part to the fact that pursuing such topics is actively discouraged in academia in favor of more profitable/"glamorous" fields.
Physics is dying and unless it gets a major jolt in the arm, we're all doomed.
I'm an engineer but my first love was physics, math a close second. Jobs in tech are generally better paying than jobs in physics or any other research field. Unfortunately, tech and other applied sciences depend on the work of theoretical physics, the two depend on each other. Tech pushes science and science advances tech.
Hello, I am 12 years old and my dream is to be an astrophysicist, and please Dr. Can u answer me these questions:
- If the graviton boson exist, can it develop string theory/loop quantum gravity or create a new theory?? And can it help the unifying field theory??
Yes. If we discover the graviton it will absolutely give us the answer to the unified field theory
A real joy. Thanks so much!
When did John Malkovich become an expert in Physics?
QuantumPeter 😂 You definitely beat me to it. 😀
Seriously , does anyone think Malkovich is a giant in the acting craft like Susskind is a giant in cutting edge physics ?
@@robertl.fallin7062 Of course!
Lmmffaaaaoooo deeeeaadddd!!
if the world was fair you would say, this guy john malkovich looks like Leonard Susskind
Excellent..... thanks.
Just listen to this master , beautiful
Do strings show any kind of relationship to time, maybe even have duality of time and energy?
@7:39 He should have said As Above, So Below".
Those strings are eternel machines which swing back and forth?
Love this
"we accidentally found a way to get funding for the next 50 years."
Hilarious and truthful. String theorists must be pretty rad crowd to get high with :)
😆😆
I only hope that constants that would fit into model of our universe via string theory could be find with quantum computers
What does the string mathematics do in relation to the protons, neutrons and mesons?
Quantum Gravity (@2:15) = Mathematics shrunk and sped up 10^18 times as a vibrating and oscillating string, like a violin string, with a tension of 10^40 Mack Trucks. (violins can't create notes without the tension on the string being there first). Yet no one asks or explains: Where did the tension on the strings in StringTheory come from?
Tom Kwake . 40 Mack Trucks of course.
At any level you cant do tension with out a pulling point done by pairs with atraction, if the strings are loose there is no way how can they vibrate, still if they could vibrate we need to know what makes them vibrate.
If you cannot grasp infinity then the dialogue continues infinitively. If we are looking for a beginning or the source of a beginning we are looking for that which has no answer. Numbers and formulas will eternally remain numbers and formulas.They overlap and surpass each other but remain unchained?
Love his voice and accent. Interesting man
Einstein's happiest thought was the realization that no force is acting on a body in free fall.
He developed General Relativity to describe this fact.
Genreral Relativity tells us that spacetime is a layered manifold of 2-D layers described by the Calculus; and the Calculus of each layer indirectly associates to every other layer..
The manifold interecting within its layers gives rise to energy and energy interacting with energy gives rise to mass, and all massive bodies are simply falling to and from and tangent to all other bodies and energy within the manifold.
The force than attracts particles together is electromagnetism and the force that binds them is surface tension which is also electromagnetism.
There is no room in reality for gravitons because gravity is inconsistent with reality.
It seems like he would have had a full geek voice when he was younger, but his deep wise philosopher voice has taken over as he got older
@@ZeroOskul hey ,how you learned that much?could you please guide me best source to learn what you learnt?i am doing major in physics(final year of bachelor degree)
As Dr. Suskind states gravity does not play any role in the quantum mechanical phenomena. The theorists that ignore the scale differences between the cosmos and the subatomic to unify gravity with quantum mechanics using string theory alone are not likely to achieve that objective.The graviton would be many magnitude smaller than the plank scale which is the limiting size of this physical unit.
he's from da bronx
How do we know if the speed of expansion of the universe has been constant? If not, and the speed has differed over time then our estimation of the age of the universe may be totally wrong
There are some stars which have been around shortly after the big back and they have a mass of 0.7Ms un with only 1h and he in the spectra from the star so that can give a close estimate
Thanks for the ispiring interview...
Prof. Meissner said once sadly ha ha ha that he quit the project of the string theory he had been working on for 15 years because it had not explained anything about the very nature of fundamental particles... he meant why electron has its mass... why does a mion exist... what is a neutrino and why... ? The list goes on and on....
At least we have plenty to do in the future... Life is bright and exciting and never boring owing to partially at least lack of the final answer. I'd be horrendous if we knew everything just now...
Aloha !
How about different flows of time? Time can be bent.
The brilliant prof. Susskind. I always learn so much from this wonderful man, and this helps and inspires me so much with my research on Q.Gravity.
The whole truth lies in every part of the whole, because it is, was and always will be. Nothing is lost in any cosmos.
As AI researcher I have been wondering that for a while -- how does the 10^500 parallel untestable universes relate to Ocam's Razor's principle. Like haven't the string theorists added so much flexability to their model as to be overfitting on the real universe in front of us ? And sure they haven't found "the one" so they are yet to overfit but even if they did find it will their model hold any real tangible testible generalizable predictions
There is only the one; it just that one overlooks itself in the search for a theory of everything.
Nice. He is not too attached to his own theory. He knows at any moment it could all be flipped on its head. A real scientist can make peace with that reality, whatever it may turn out to be
Are these strings just mathematical concepts? Or would they be detectable?
I have always felt like string theory is up there with the Greek Pantheon, plus some better counting and measuring of shadows. 💛
This is great topic, and I learned a lot about the background of science and the progress of it that shows how far we are now. I just wanted to ask, why in all computation we do is base in 2 dimensional in singularity? Is this something the only way to see the Universe? I am so wondered, why when look the real object we can not see the back of it. Limitation always show, but in all problem has solutions and computation. Knowledge is become like a fruit in the trees but sometimes we just take it from the ground that falls, and not in the actual tree. Can a fish climb a tree? Or just waiting for falls to come? Are we like the fish? Or something more? If a fish think something about climbing? Who thought this fish that thinking. Maybe the tree teasing the fish? Or the Tree inviting the fish. So can the fish jump out on the surface of the water on that high to get the fruit? Or the tree bend to get so the fish get the fruit? Will this two object in the story related? Just something to ask how would i think the reality if I am a Human and not a fish?
Your comment is... fishy.
What are those strings made of?
Thanks
You can't tell if Susskind is talking about physical or mathematical property as he describes the workings of such plank scale stuff. Amazing indeed.
Yeah, you cannot make sense of what he says so it is amazing.
Einstein's happiest thought was the realization that no force is acting on a body in free fall.
He developed General Relativity to describe this fact.
Genreral Relativity tells us that spacetime is a layered manifold of 2-D layers described by the Calculus; and the Calculus of each layer indirectly associates to every other layer..
The manifold interecting within its layers gives rise to energy and energy interacting with energy gives rise to mass, and all massive bodies are simply falling to and from and tangent to all other bodies and energy within the manifold.
The force than attracts particles together is electromagnetism and the force that binds them is surface tension which is also electromagnetism.
There is no room in reality for gravitons because gravity is inconsistent with reality.
"Nothing ever begins when you think it does." Lillian Hellman?
I like how he says “a billion billion” like we can comprehend what that means
Or even be sure what he means ...
1,000,000,000,000?
1,000,000,000,000,000,000?
It means one gazillion. Like when a gazelle mates with a lion: gaz lion. Gazillion.
The abstraction and metaphor used to hold this conversation made it difficult to understand who is the intended audience. It felt sort of like a plea to fill a physics department with grad students curious to study and expand this theory...did I get it right?
The most beautiful and elegant theories we may one day come up with will become old and be replaced by other newer and even more beautiful and elegant theories that will one day become old...
What you are missing is the reality of spirit. Dr Susskind understands information better than most. But, the bottom line is, information begins as thought. If you deny the origin of that thought the solution will forever elude you.
I didn't get the part where they said all constants are just one in String Theory..
If I’m not mistaken, it’s just a common technique in theoretical physics to set constants such as hbar or c to unity (1) to simplify calculations. : )
What kind of results would be needed to prove string theory?
How can you give an example of the strings strength when it's never been tested?
@Mr. H 👍
When Einstein developed the general theory of relativity, he didn't test himself. It was after sometime that people tested it by confirming if explained the orbit of Mercury quite well.
I think string theory connects with the unified field thru the toroidal energy flow theory. That has a relative size black hole in the middle of it vibrating in the frequency of the universe or higgs boson frequency. Nassim Haramein has mathematically fit the theoretical Torus in all scales.
The minus one law of the conservation of information. Explains why we must take each bit or byte of information and assign a perception of mass to it in order to store it in the universe as dark matter and dark energy... but of course it does not change the fact that the light is the same disturbance in the quantum wave field that we call virtual particles. No mass as Ms Sabine points out.just the energy we will take from the dark matter and convert into the angstroms decibels and wave pressures to create life’s meaning in terms of the sights and sounds and experiences that make up this virtual reality we perceive of as a physical one....”“It would be possible to describe everything scientifically, but it would make no sense; it would be without meaning, as if you described a Beethoven symphony as a variation of wave pressure.” - Albert Einstein
The problem with actually measuring is that eventually the margin of error becomes thousands of times greater than what you are measuring.
Only now exists ....
The past is over... does not exist
The future is not yet ... does not exist
That means the quantum entanglement is simply the fact that past and future are actually a creation of the now based on the FAITH in past memories we have NOW based on the HOPE we have NOW in hopes of a future which does not exist yet ... THE SINGULARITY is not a hypothetical point in time, anymore...
At the present time String Theory is essentially an unfalsifiable philosophical framework/hypothesis with an elegant and internally consistent mathematical structure.
Indeed, which gives it as much weight as my purple unicorn hypothesis. It's been like 4 decades or something, the string people need to come up with even the beginnings of an experiment. Otherwise they start freeing up the money for legit scientific work and the string people can continue their Ancient Greek style of getting drunk off wine and pulling stuff whimsically out of their butt that can't be tested.
Are strings a particle?
What are the strings in String Theory made of?
candy
I guess the strings are not like the usual string you know. It's more like a filament-like structure vibrating in eleven dimensions.
When is this from... I get like a 90s vibe from this?!
It's from about nineteen-ninety-twentyfive.
Watching this video in 50 years will be wild.
Awesome video
I really very enthusiastic work in the field of quantum mechanics 🤓
What happened to Spring Time Theory?
RLK, It seems that General Relativity and Quantum Mechanics can be unified rather simply. Would you like to hear some ideas?
Energy equals mass times the speed of light squared is Einstein's famous equation E=MC², but why and what process links energy, mass and light together in this way?
In this theory E=MC² is an approximation of (E=ˠM˳C²)∞ with energy, mass, light and time dilation all part of one process. Energy ∆E slows the rate that time ∆t flows as a process of continuous creation relative to the energy & momentum of each object or life form. Mass will increase relative to this with the inward force of gravity linked to the outward momentum of light. Therefore both gravitational and electromagnetic force are relative to the inverse square law!
Always love Leonard's honesty and humility. We live in a virtual reality. This model allows for QM and GR simultaneously. It also is parsimonious with the Holographic Principle, Heisenberg Uncertainly Principle, and the measurement problem in QM.
Once we can understand this, GR and QM will fit together easily.😊
Excellent! But so many top scientists are critical and claim that theories based on very solid math alone can lead us nowhere! What is your opinion??
The theoretical constructs help guide experimentalists in what they should be looking for. Just consider the search for dark matter, which has been inserted as a placeholder to explain certain real-world observations but without knowing what it actually is. The theorists now are able to layout boundaries as to what DM can actually be (and what it can't be). When the experimentalists come up empty, as they have with all the DM experiments so far, the theorists then actually have something new to work with to refine their boundaries - or even scrap the whole notion entirely.
If you can understand how gravity waves collapse at the quantum level we will be able to travel not only vast distances but in time as well.
Very little serious consideration is given by most to the ideas contained in Immanuel Kant's "Critique of Pure Reason". One of the ideas is that any thought, or all thoughts, as well as observations are/must be subsumed into one or more of the 12 Categories of Judgement or their many subcategories. Put more simply, if the mind is not designed to see/hear etc a phenomenon, and not designed to provide a plausible explanation for such, then it is simply not experienced. Assuming the human mind is not perfect, which seems likely, then we really can't know or understand everything. Which doesn't mean we should give up and not try.
Kant also noticed that we can, with our mind, try to explain something by a force fit of categories, the end result being that few will believe the explanation, because, according to Kant, being convinced of the truth of something is a feeling that arises from certain naturally well fitting combinations of categories of judgement. A perfect example is Escher's drawings of stairs that keep going up yet the end is connected to the beginning....the drawings look fairly convincing yet we don't actually feel certain about the veracity of it.
Susskind and others have referred to our evolved Newtonian view of reality and suggested that we have to let go of that to accept some things in quantum physics. Kant would reply that if you have any success figuring out quantum physics, and we have, then the needed conceptual categories were already there, merely not tested in the past.
Some appreciation for "Critique of Pure Reason" or it's derivative works is likely why some experts in physics say things like: "it's not clear that we will ever know everything, some mysteries may remain".
It seems that at a certain point you need more then math to overcome this. Music is math but much more. If you look at it on the sheet it makes no sense to those that can’t read it. And even for those that can they still can’t hear it until they play it. Then there are those that can creat it they can hear it they know it. The big piece may be in a new language.
As much as I love physics and mathematics, I have found myself trapped many times in this exact thought. I am not just talking about the incompleteness theorem, I really think some more philosophic questions - many that also emerge from physics - are a realm of questions of their own which will never be answered with a mathematical approach.
In regards to "our" String Theory -
It almost seems like physicists ought to create a string-coordinate system to navigate the scape of possibilities; Rather than trying to approach the problem in a random fashion, create a network of known relationships among competing theories according to some arbitrarily efficient criteria. Such as a search algorithm. Perhaps one that can be loaded onto a Quantum Computer
Should a data-structure exist such that the information within may be related by some means, then the relationship expressed by the system can be potentially probed according to ordered quantum processes. To within a certain degree of error depending on the nature of the system being measured.
I'm just thinking out loud. I'm not sure if any of the above is true.
He is saying that nobody will be more shocked than string theorists if string theory ever leads to something useful.
I could listen to Lenard all day long stretching into the early hours
So how do strings contain gravity? Do they curve space time?
Everything on Earth should be affected by gravity. For the strings, my guess is that it affects it but on a small scale.
Blows my mind that Leonard is already 81 (according to Wikipedia).
Just finished The Black Hole War. Nice. Love Lenny!
Incredible book...one of my favorites in the whole theoretical physics library , I’ve read all of Brian Greene’s books as well as Sean Carroll and Lawrence krauss’ work. Black hole wars is a superb book.
He is amazing
The Life-Desire is the Motor of the Eternal Life,
in direct extension, we have the 'Will', (Life-side) and Gravity, (Stuff-side)
With my will, I do balance the gravity of Earth, with my own, when I lift the cup.
So, it is actually the Life-desire and the Will, as is the key to Gravity.