David Gross on String Theory, his Nobel Prize, and 1950's Physics to Today | Full Video Episode

Lawrence Krauss recently had the pleasure of sitting down with David Gross, one of the preeminent theoretical physicists who has been involved not just in the development of the theory of the strong interaction, called quantum chromodynamics, but he is also one of the founders and developers of String Theory. In their discussion, they explore the growth and changes of physics from the 1950's all the way to current day discoveries and methodologies.
David Jonathan Gross is an American theoretical physicist and string theorist. Along with Frank Wilczek and David Politzer, he was awarded the 2004 Nobel Prize in Physics for their discovery of asymptotic freedom. Gross is the Chancellor's Chair Professor of Theoretical Physics at the Kavli Institute for Theoretical Physics (KITP) of the University of California, Santa Barbara (UCSB), and was formerly the KITP director and holder of their Frederick W. Gluck Chair in Theoretical Physics. He is also a faculty member in the UCSB Physics Department and is currently affiliated with the Institute for Quantum Studies at Chapman University in California. He is a foreign member of the Chinese Academy of Sciences.
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The Origins Podcast, a production of The Origins Project Foundation, features in-depth conversations with some of the most interesting people in the world about the issues that impact all of us in the 21st century. Host, theoretical physicist, lecturer, and author, Lawrence M. Krauss, will be joined by guests from a wide range of fields, including science, the arts, and journalism. The topics discussed on The Origins Podcast reflect the full range of the human experience - exploring science and culture in a way that seeks to entertain, educate, and inspire.
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[@haoyangsun3278]

I like how Gross talks and have so much confidence in his work and string theory and happy. I wish one day I can speak like him

[@das_it_mane]

Fascinating interview! David Gross is an OG

[@edwardjones2202]

Good talk thanks Lawrence

[@tomhummel2641]

This will be great! Would you please enable automatic captions? Must be done by owner/editor/admin.

[@sTizZin]

This guy gets amazing guests and doesn’t let them talk

[@Dr_LK]

Fantastic talk, pity about the microphone/sound issues...

[@stockinvestor1]

Great talk :)

[@paultraynorbsc627]

Excellent 👍👍 Lawrence retweeted of course ☕☕

[@constpegasus]

Thank you Mr Krause for this.

[@notanemoprog]

"Santa Krause"

[@HanktheFrank]

Does anyone else think that David Gross sounds exactly like Christopher Walken?

[@probnpputeh]

Tq Both Prof.Love.

[@TheBullgang]

Miss you at ASU Dr. Krauss

[@PearlmanYeC]

sounds interesting, just subscribed, starting to view now, and hope to share and perhaps comment.

[@PearlmanYeC]

22:00 +/- love the shared edu. reading, .., admissions experience,.. reminds me of how some accomplished athletes passed over by many Teams early in the draft..

[@shelleyharris2850]

Science, we peeled onions and studied the layers. Late 60's early 70's

[@paulbk7810]

Biology: Future of humankind is in molecular biology, genetics. This is not an open question. Certain physics specialists will make important contributions. Fields: both plant and animal.

[@isedairi]

Next guest, Lenny Susskind please!

[@rosejulietblack]

Yesss!!!!

[@stargazer8718]

Susskind really has got to be invited. Please!

[@peterlien1196]

Yeah get Lenny

[@shelleyharris2850]

I loved the bunsen burner, ? Spelling

[@betaneptune]

Audio/video out of sync. Please fix.

[@paulbk7810]

This is fabulous. Life history is as interesting as science. David's life spanned making of modern world.

[@ZiggysDad]

Just need to sync that audio.

[@merlepatterson]

Why are most galaxies and solar systems in plane form? Have any solar systems been found which violate the plane form configuration? Seems that some type of electromagnetic polar field influence would form a plane out of randomly distributed matter, but would gravitational-caused curved space do so alone if its affect is assumed to be evenly effectual in all directions? What prevents an uncaptured moon from orbiting about its host planets (or planet to stars) polar regions (or oblique angles thereof) if curved space is to be considered the prime (or only) influence?

[@powerdriller4124]

There is a "mysterious" force called _Centrifugal Force._

[@merlepatterson]

@@powerdriller4124 I'm well aware of that, but there is also things known as "eliptical galaxies" which don't form planes. Is "Centrifugal force" limited only to certain areas in the universe if it is to be considered the primary causal factor of galactic plane formation?

[@merlepatterson]

Note: and I don't believe centrifugal force is limited to certain areas of the universe, just to be clear.

[@annaclarafenyo8185]

@@merlepatterson It's because angular momentum is conserved, and friction reduces energy without reducing angular momentum. So galaxies get less elliptical and more planar as friction removes the energy keeping the angular momentum fixed. The friction comes from gravity leading to random interactions with dark-matter, stars, and dust.

[@merlepatterson]

@@annaclarafenyo8185 "Theoretical" Dark Matter just to be clear.

[@noname-gw8yq]

DO YOU ANSWER QUESTIONS HERE

[@jakethemistakeRulez]

I've always thought David Gross is a mustache kinda guy. He should try growing one.

[@shelleyharris2850]

I put onions on almost everything. Hmm. Peeling back many layers of life. 😇😎🕵️‍♀️🙌🕰🙏✍

[@defenderofwisdom]

If the universe had started with an equal amount of antimatter and matter, and spacetime expanded 'til roughly now to a point where there was still an equilibrium of that kind, would that have changed the kinds of options or evolutionary pathways available to earthly life and especially human life?

[@sonnycorbi1970]

There would be no bath ways only saturation and equal expansion on all sides, like a balloon - words are not things - words are descriptions of things and subject current connotations - YOU SEEK THE RIGHT ANSWERS TO THE WRONG QUESTIONS - space and time (or space/time), space/time are and is only applicable where matter exist - AS IS ELECTROMAGNETIC-GRAVITATIONAL AS ONE UNIT - HENCE THE “UNIFIED FIELD” WHICH WE ARE ABOUT TO ‘REALIZE’.

[@user-ln5nk7mg4v]

If String theory is the Standard Model (of particles) where is the Standard Model for fields? Physicists are clueless on that, aren't they?

[@joshua3171]

wow cool book 10 min

[@aliabbastaj]

Can you explain why we have limited observable universe? Why is this radius 46 billion light years? Universe is 13.8 billion years old. Can we not estimate the size of Universe from its age?

[@matteuszgmail]

Because space itself is expanding faster than the speed of light therefore if the universe is ~14 billion years, photons have had ~14 billion years to move around. We see these photons as the observable universe even though it’s actually much much larger. ;)

[@joshua3171]

can you see europe from america???just a thought

[@BaconbuttywithCheese]

@@joshua3171 Until we can see through mantle rock etc, no.

[@BaconbuttywithCheese]

@@matteuszgmail How can anything move faster than the hard limit of C?

[@ftumschk]

@@BaconbuttywithCheese You can't travel faster than _c_ if you're travelling _through_ space. However, there's nothing stopping space _itself_ from expanding faster than _c,_ and carrying the galaxies embedded within it at the same speed.

[@user-ln5nk7mg4v]

When I discovered, decades ago, that there wasn't much in String theory that the general public could understand then String theory appeared to me to be fairies dancing on a head of a pin. Currently, no evidence to the contrary.

[@l.rongardner2150]

I'm probably the foremost physicist, because I've got a formula that describes how nothing originated from something. And I'm not "vaccinated," because I'm smart enough to have skipped on the "clot" shot (which is not a vaccine, but biological engineering).

[@gazdemoraville6878]

If this is the podcast Lawrence was talking about getting J. Peterson on then it could do with being better branded i.e called "The Lawrence Kraus Podcast". I don't think many people will find this.

[@annaclarafenyo8185]

String theory has exceeded all expectations in every respect, it is easily the most successful theory in physics.

[@bobjones5869]

it’s not the most successful but it’s successful

[@notanemoprog]

LOL!

[@annaclarafenyo8185]

@@notanemoprog Says someone who doesn't understand string theory.

[@notanemoprog]

@@annaclarafenyo8185 You subscribe to Sam Seder. Your opinion is worthless.

[@georgegreatguns8807]

No comment

[@annaclarafenyo8185]

I don't like the mockery of SU(6). While the theory is relativistically incorrect, the idea of mixing internal and rotational symmetry led to supersymmetry by a nearly direct path, and this was very important. It's like making fun of the original quark ideas of Sakata and Nambu because they had integer charge, you need to false steps to make the correct steps.

[@annaclarafenyo8185]

The Chew "religion" shouldn't be called religion, I think Gross misrepresents the idea. The idea was to make a field theory out of Regge trajectories without using fields, so that if you put together trajectories with the principles of unitarity/analyticity/crossing you would get a more-or-less unique theory. This is exactly how you produce string theory. The construction of string theory absolutely REQUIRED this Chew religion, because there are tons of theories which aren't critical strings, like QCD strings, or whatever. What picks out critical strings, the Veneziano strings, is that you put together the Regge trajectories in such a way that their scattering can't pick up new contributions which are not trajectories, because that would wreck the Dolen-Horn-Schmidt worldsheet duality property. This means that the traditional string theory is exactly the unique solution to the bootstrap, and the reason you stop hearing about bootstrap, aside from QCD being discovered, is that string theory gave the only known calculable example to this day.

[@SpartanWolf120]

Eat your cereal

[@constpegasus]

Can gluons exist by themselves?

[@thattwodimensionalant4626]

Nope

[@annaclarafenyo8185]

The vacuum in QCD is full of something called a 'quark condensate', it's like a superfluid of quarks and antiquarks mixed together, and when it moves, the waves are called 'pions'. When you make a glueball, it quantum mechanically mixes up with quark condensate, and you can't tell them apart easily from mesons made of quarks. Nevertheless, the first glueball is believed to be one of the scalar (spin-0) particles around 1300 MeV, but we can't tell which of these is a glueball without better theoretical understanding.

[@kevincasson9848]

Sound terrible on thus. Or Gross is talking with a mouth full of chewing gum!

[@josidasilva5515]

The Theory of Everything (from an Electrical Engineer's perspective) The Universe is fractal. Ether/space/anti-matter/vacuum is composed of atoms with electrons spinning around at multiple times the speed of light, therefore currently undetectable to humans, except in the electromagnetic spectrum. Proof: 1- Quantum entanglement. 2- Gravity as an electromagnetic phenomena. 3- Super colliders additional particles output (yes, we can destroy anti-matter). 4- Transmission and detection of magnetic fields. 5- Synchronicity, intuition, empathy, remote-viewing and other brain related phenomena can relate to electromagnetic transmission. 6- MRI, CT scans, radar detection utilize ether as means of transmission. 7- The bending of light around celestial bodies. ∞ - Anything else we call magic or coincidence when the equations of probability cannot predict.

[@kevincasson9848]

Funny some of these scientists, can't string more than two words to a sentence, and mumble!

[@silberlinie]

Welch ein überflüssiges, ein peinliches und durch vorgetäuschtes gekünsteltes Interesse am Leben gehaltenes Gespräch

[@user-ln5nk7mg4v]

Exploring Physics is fine, however, 40 years of wasted public funds is another thing.

[@luigicantoviani323]

David appears very shy about string theory these days...far back are the days in which he was very certain the theory was IT....it tuned out to be the theory of anything making sense in AdS universes that have nothing to do with this one.

[@notanemoprog]

One can listen to a certain amount of Krauss waffling on and on and on and on, because the interest in hearing what the guest has to say overrides the incredibly strong impulse and even urge to punch that CTRL+W after unsubscribing, but at some point, it really really really becomes impossible to continue.

[@notanemoprog]

Let's hope that there are MANY "refugees" of the sort talked about here when the next Republican Administration takes over in January 2025.

[@minhsp3]

Typical Brian Greene interview, This guy always interject himself on a Nobel Laureate, a Sign of latching into real science. Watch Greene's interview of Penrose, pitiful self-advertisement, Hate these guys

[@minhsp3]

let the guy talk! who cares about Lawrence stupid book

[@minhsp3]

Murray Gell-Mann, Ilya Prigogine, and Martin Perl Laureates joined my company NetworkPhysics and What I learned from them is to ignore parasites like Greene and Lawrence

[@minhsp3]

If Lawrence had a chance to interview Murray, he would tell him to keep his mouth shut

[@minhsp3]

So painful to listen to Gross. I will invent an algorithm to mute the comments of these interviewers