Leonard Susskind - Why is Quantum Gravity Key? 

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

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.

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 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

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.

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

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

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.....

And at the same time he can explain it in (more or less) layman's terms.

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.

ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-6Waurx8e-1o.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.

he helped invent it. He speaks of it often

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

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

Yes. If we discover the graviton it will absolutely give us the answer to the unified field theory

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.

@Daniel Paulson 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.

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

In this video he seems more like a cult leader to be fair.

It's from about nineteen-ninety-twentyfive.

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

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

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.

There is only the one; it just that one overlooks itself in the search for a theory of everything.

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.

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.

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.

wouldn't they be like the string on a musical instrument? as the string is stretched it's frequency of oscillation changes therefore changing the time space around it? either more or less energy is created as the acceleration or deceleration towards or away from its original resonate frequency changes? if it snaps we're all phucked? lol.

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 happened to Spring Time Theory?

I will do all of them one better and just say "Yes"

"Why?"?🤔🤦‍♂️

MAGIC! 🤯

ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-6zwf6YcgOqQ.html Might find it interesting

Everything on Earth should be affected by gravity. For the strings, my guess is that it affects it but on a small scale.