Lee Smolin: String Theory Is Still Wrong (152)

Ғылым және технология

Lee Smolin is a physicist at the Perimeter Institute who Is a vocal critic of string theory. He is fascinated by quantum gravity, contributing to two major theories, loop quantum gravity and deformed special relativity. He proposed ‘cosmological natural selection’: a falsifiable mechanism to explain the choice of the laws of physics.
He has also contributed to quantum field theory, the foundations of quantum mechanics, theoretical biology, the philosophy of science and economics. He is the author of more than 150 scientific papers and numerous essays and writings for the public on science.
He also has written four books which explore philosophical issues raised by contemporary physics and cosmology. These are Life of the Cosmos (1997), Three Roads to Quantum Gravity (2001), The Trouble with Physics (2006) and Time Reborn (2013). Most recently, he coauthored The Singular Universe and The Reality of Time with Roberto Mangabeira Unger.
00:00:00 Intro
00:01:17 Is physics still in trouble after 40 years?
00:01:42 Quantum materials is a bright spot
00:04:00 String Theory is still wrong!
00:05:58 Loop Quauntum Gravity’s origins
00:21:30 Emergent Spacetime
00:35:37 The cosmic microwave background and the advent of chirality in quantum physics
00:46:32 Thoughts on the multiverse
00:57:50 Can creativity be taught?
01:00:00 The Thrilling Three™: Existential Questions I ask all my Guests
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Пікірлер: 440

  • @DrBrianKeating
    @DrBrianKeating3 жыл бұрын

    Is string theory still our best hope for a Theory of Everything?

  • @mr8ty8

    @mr8ty8

    3 жыл бұрын

    I doubt it. And my doubts are great.

  • @DrBrianKeating

    @DrBrianKeating

    3 жыл бұрын

    Thanks

  • @zeb1820

    @zeb1820

    3 жыл бұрын

    No, because we don't even know how long a piece of string is? But seriously, the two ideas that seem to be breaking ground are geometric unity and the understanding that there are additional factors or dimensions coupled with the realisation from the 'delayed erazor double slit experience' which shows that what is experienced is based on what wd expect to be. 'Allah gives you what you expect' , and 'prayer is the only thing that can change what is written for you'. Or as my enlightened daughter said, 'we don't know anything about reality'! My question is is it the expectation that changes the outcome of the experiment, or does it just mean we experience the outcome of the experiment differently due to what we expect? I'd say the later, but that's probably just because that's what I expect it to be...

  • @mr8ty8

    @mr8ty8

    3 жыл бұрын

    I loved Lee Smolins the The Singular Universe and the Reality of Time and Einsteins unfinished revolution. Well worth the read.

  • @DrBrianKeating

    @DrBrianKeating

    3 жыл бұрын

    Agreed

  • @trax9987
    @trax99873 жыл бұрын

    Brian plzzz the sound in the background does not go well the voice and speech. You can have the audio but it has to be different. You can hire an audio engineer for cheap and they will pick out the type of music that does go well and mix it so it all sounds right. Please I love your work but this makes it unbearable to listen.

  • @chriskennedy2846
    @chriskennedy28463 жыл бұрын

    Lee is a great thinker. He is always honest with himself and always honest with the rest of us as well. Physics needs more of that.

  • @JasonMacKenzie
    @JasonMacKenzie3 жыл бұрын

    First of all, I absolutely love your interviews and your deep knowledge in so many areas. My only request is: please, please, please lose that random background music that shows up in the podcast lately. It makes the interviews unlistenable to me. Am I the only one? It wouldn’t be the first time I’m an army of one :)

  • @mechannel7046

    @mechannel7046

    3 жыл бұрын

    Agreed. The music is very distracting, and the guest's audio is barely acceptable, even though what he says is very interesting

  • @parva777

    @parva777

    3 жыл бұрын

    ME2

  • @dsimpsonbeck

    @dsimpsonbeck

    3 жыл бұрын

    Yeah, it's quite distracting and doesn't add anything useful. I'm also not sure the displaying of book covers on quantum gravity right when Smolin starts talking about it actually helps us to understand what he's saying. This was when the background music first dropped in though, so it might be that without the music i would have been less distracted by the book covers. The combination of the two sets up a mental expectation that you shouldn't actually be listening to the speaker anymore. Think of those sections in quick news videos when they're highlighting an idea by showing a clip of someone explaining the idea, then they fade the speaker's voice into the background as they bring on visual info to keep the explanation going but through a different medium. In those videos (of they're done well) the speaker's voice fades, and the music comes in overtop, to allow your brain to shift to taking in the info through the new medium. But with this video, that's not even the intention. So you prime the viewer into switching modes when you don't actually want that, and Smolin's explanation gets lost.

  • @davidsmail1987

    @davidsmail1987

    3 жыл бұрын

    Agreed. Amazing interviews but would (humbly) suggest the music/graphics should go.

  • @DrBrianKeating

    @DrBrianKeating

    3 жыл бұрын

    Thanks but will keep graphics for sure!!

  • @sirilandgren
    @sirilandgren3 жыл бұрын

    Brian, it's so fantastic how you keep expressing your deep personal admiration for your guests, even though they sometimes hold deeply contradictory views. That gratitude for people's work and commitment (also shared by Lee) is in my mind what a field needs in order to be as good as it can be - both in terms of technical results, but also in terms of value to humanity. And this is also one of the reasons why I (from my amateur's point of view) hold Lee as one of the most important people to his field.

  • @DrBrianKeating

    @DrBrianKeating

    3 жыл бұрын

    Thanks SL. I really appreciate that!!

  • @Joniversity
    @Joniversity3 жыл бұрын

    The background music is distracting and annoying. Why the hell mix that in to a podcast??????

  • @parva777
    @parva7773 жыл бұрын

    Background music is painfull to my ears (much to lood)... Specialy with such an interesting subject !

  • @johnwhitworth2090

    @johnwhitworth2090

    3 жыл бұрын

    Especially painful and loud.

  • @tonyguerich9854

    @tonyguerich9854

    3 жыл бұрын

    Needs to be faded down after intro. Really not needed at all.

  • @DrBrianKeating

    @DrBrianKeating

    3 жыл бұрын

    The music or the videos? effects?

  • @simplyzach

    @simplyzach

    3 жыл бұрын

    @@DrBrianKeating Maybe I can clarify. The background music that appeared sporadically during conversation, was at times, extremely annoying. The volume seemed to vary quite a bit, and didn't match conversation. I am assuming this was an editing oversight with the other visuals that appeared (overlapping audio) but it was infrequent enough that I watched anyway, because as the previous poster noted, the topic material is extremely interesting.

  • @DrBrianKeating

    @DrBrianKeating

    3 жыл бұрын

    Ok. Noted. Check next weeks video and please let me know if I improved

  • @pascalbercker7487
    @pascalbercker74873 жыл бұрын

    I'm just echoing what others have already said, namely that the random music not only adds nothing - but detracts.

  • @DrBrianKeating

    @DrBrianKeating

    3 жыл бұрын

    Thanks I’ll tone it down. Get it?

  • @gwh0

    @gwh0

    3 жыл бұрын

    @@DrBrianKeating Just turn it off.

  • @johnwhitworth2090

    @johnwhitworth2090

    3 жыл бұрын

    Distraction

  • @stopthephilosophicalzombie9017

    @stopthephilosophicalzombie9017

    2 жыл бұрын

    As atmospheric music goes, this is not bad. I've heard sooooo much worse.

  • @Wilson-Jr
    @Wilson-Jr3 жыл бұрын

    The string theory offers a solution to a problem created by the string theory itself.

  • @zbig47
    @zbig473 жыл бұрын

    Smolin is a total picnic to listen to. Keating doesn't bother but ask the highest pertinent questions. Great conversation between the two. Thanks for this !

  • @DrBrianKeating

    @DrBrianKeating

    3 жыл бұрын

    Thanks very much !!

  • @Only1INDRAJIT
    @Only1INDRAJIT3 жыл бұрын

    Kindly give links to the papers u mentioned in the video. Great great work by the way Sir. Respect...

  • @JaskoonerSingh
    @JaskoonerSingh3 жыл бұрын

    Great fan of your but please lose this background music esp when someone like Lee Smolin is speaking. We want to concentrate on what the man is saying when is already very frail and faint of voice.

  • @andyoates8392
    @andyoates83923 жыл бұрын

    Thank you Brian and thank you Lee. Listening to this KZread channel has had the most profound effect on how I view life, myself, my work and everything else. Keep the wisdom coming, it’s great.

  • @DrBrianKeating

    @DrBrianKeating

    3 жыл бұрын

    Thanks Andy that is SO wonderful to hear. Have a great weekend!

  • @andyoates8392

    @andyoates8392

    3 жыл бұрын

    Right back at you 🙂

  • @williambunting803
    @williambunting8033 жыл бұрын

    That is a great concept “Teleportation of character”. That talk had a number of philosophical gems towards the end.

  • @DrBrianKeating

    @DrBrianKeating

    3 жыл бұрын

    Thanks William. I really appreciate you/that

  • @VeganCheeseburger
    @VeganCheeseburger3 жыл бұрын

    Great content, just wish the audio quality on the guest's end was better

  • @ironshirt420
    @ironshirt4203 жыл бұрын

    I was surprised, delighted and moved by the closing segment. Especially your teleportation riff. Just splendid. Thank you so much! Both of you. Wow.

  • @DrBrianKeating

    @DrBrianKeating

    3 жыл бұрын

    My greatest pleasure

  • @arjundey807

    @arjundey807

    2 жыл бұрын

    So i’m still kind of confused does this video trust the string theory or does it believe it’s rubbish ?

  • @mxbishop
    @mxbishop Жыл бұрын

    I really like Lee Smolin. I've read his books including, "The Trouble with Physics." He was objecting to String Theory long before others had joined the chorus. When I think about physics, I see an elephant in the room. And that elephant is quantum entanglement. How can it be that two particles can seemingly communicate faster than the speed of light? To me, this is the big clue that's winking at everyone in the physics community. It's telling us that Einstein's relativity is incomplete. Perhaps there is more to reality than our classical 4D spacetime? QE suggests a broader theory that includes higher dimensions and/or more exotic geometries that allows quantum entangled particles to communicate without violating special relativity - when viewed in this new framework. Of course, the broader theory will have to recover special and general relativity in our familiar 4D spacetime. QE is imploring us to find a better theory of spacetime. I also suspect that once this new theory is discovered that explains how QE actually works, then quantum gravity may likely fall out of the equations as well. I'm not a theoretical physicist, but I am a mathematician, and this is what I think.

  • @emasolie4135
    @emasolie41352 жыл бұрын

    Prof. Smolin is adorable. I turn on cc so as not to miss anything. He's a classic thinker (INTP). I like what you and he say about character. Many people today can't talk about it.

  • @Mrpsblobsoflowendmung
    @Mrpsblobsoflowendmung3 жыл бұрын

    Wow the last 5 minutes of this literally brought tears sir, Truly beautiful and inspiring conversation . I always find out so many of my favourite people are also musicians . Thank you Brian truly thank you

  • @DrBrianKeating

    @DrBrianKeating

    3 жыл бұрын

    Dear Phil. I really appreciate that. Have a wonderful weekend!

  • @arjundey807

    @arjundey807

    2 жыл бұрын

    so i’m still kind of confused does this video show that the String theory is rubbish or not ?

  • @Alexander_Sannikov
    @Alexander_Sannikov2 жыл бұрын

    I appreciate that there are some graphics vaguely related to what's discussed. But I wish they were less flashy and more closely related to what's discussed. For example, when Lee is talking about the quantum loop paradigm, you show some really pretty stock videos that arguably have nothing to do QLG. Instead, I wish you showed static images that are less pretty but are more related to the subject.

  • @DrBrianKeating

    @DrBrianKeating

    2 жыл бұрын

    Thanks for the feedback

  • @spaceinyourface
    @spaceinyourface3 жыл бұрын

    Were just couple of nobodies in the UK,,but we allways feel privileged listening to the top minds in physics you have on your podcasts,,if the sounds a bit dodgy or we cant hear something clearly we go back a few minutes & listen again ..& again if need be,, we allways pause it & discuss certain issues,,then carry on. Your interviews are a big part of our lives right now. These older guys wont be around for ever,...😃

  • @DrBrianKeating

    @DrBrianKeating

    3 жыл бұрын

    I agree. That’s part of the motivation for my upcoming book. Inspired after the passing of Freeman Dyson your countryman last year.

  • @KaliFissure
    @KaliFissure3 жыл бұрын

    First. Friedman equation should be performed not on a perfect fluid (since space is no such thing) but on a variable viscosity fluid which appears to be infinitely compressible. This gives low density regions higher viscosity which has many characteristics of mass/inertia. This would also make denser regions like galaxies less viscous which would encourage turbulence and micro turbulence which would absorb the smooth large scale rotational energy solving galactic disk problem. Second. The quantum unit of gravity (which itself is continuous and fluid as energy does impart curve) is the neutralized charge pair which is in both proton and neutron but not in any other particles. P=+2/3+2/3-1/3=1 but the neutralized +1/3-1/3 is not gone. It is spinning at c . m = E/c^2. These charges, chasing each other at c induce inertia through centripetal force of c^2. This is the quantum of mass and why only P N have.

  • @schmetterling4477

    @schmetterling4477

    3 жыл бұрын

    Viscosity does nothing to angular momentum and energy.

  • @adraffy
    @adraffy3 жыл бұрын

    I rarely comment. Brian, this was one of your best podcasts. You got Smolin to braindump and you let him talk uninterrupted.

  • @SpinStar1956
    @SpinStar1956 Жыл бұрын

    I like Lee, he seems very down to earth, and realistic about not only science but the humility that is really necessary to not waste time and get on with the next frontier...

  • @Achrononmaster
    @Achrononmaster3 жыл бұрын

    LQG people have missed something big, because they've tried to quantize an already quantized theory[^]. Rovelli infected them all with unviable quantization. If they go back to the gauge picture, then formulate the GR sector in terms of geometric algebra (Lasenby & Doran's work) you get most of relativistic wave-mechanics for "free" (so to speak) with the rotors in the _real_ geometric (Clifford) algebra (David Hestenes work), then add non-trivial spacetime topology (wormholes --- Lenny Susskind & Maldacena's work) then use that to raise the _effective_ degrees of freedom so you get an "effective" extra pair of space dimensions (c.f. Dixon, Baylis and others), hence 6+1 d.o.f then with the geometric algebra you get octonions (Dixon, Baez) and the full standard model group with chirality (Cohl Furey's work). I cannot be certain but I also think you will not get superstring anomalies, and you do not need supersymmetry, since spacetime topology tames modes (and the graviton is not really a thing), you just have ordinary gravity waves and solitons, or wormhole vibrational modes. On the scale where wormholes persist (Planck scale) you'll get CTC"s and hence "time loops" which "explains" all the rest of quantum mechanics --- decoherence or "collapse" is a macro consequence of the fact big things cannot travel trough these CTC's, and so quantum effects must fade naturally the more fundamental topological geons have to coherently jump around the wormholes (whihc is what quantum foam is). I know this is a broad brush I'm painting with, by hey, it's only a youtube comment. Feel free to "steal" this patchwork quilt, but drop me a line if you do. I have more pressing humanitarian problems to solve, trying to get a job guarantee program into New Zealand law, switching career from physic to activist macroeconomics. [^] the "already quantized theory" is GR!!! (Mark Hadley's work) --- and Susskind & Maldacena have also cracked into this piece of the puzzle, the key to that bit is "ER=EPR," and more recently Susskind has even been writing about "QM=GR". The laboratory for studying QG will be on the desktop, the quantum computer (wormholes (GR) _are_ entanglement (EPR => quantum computing)). Susskind's missing all this because he is biased, he thinks GR emerges from entanglement, but it's the other way around! One can appreciate GR => QM when you listen to Feynman: all the weird shit like Pauli exclusion arises from spacetime symmetry and exchange (via what?... via wormholes, hello!!!) Sum over histories too and the "fractal" and acausal Feynman--Hibbs trajectories --- what's all that from?... from the non-time oriented statistics of topological geons jumping around through Lorentzian wormhole CTC's on the Planck scale or thereabouts (probably a quite broad scale of length and time, say sub-atomic, I don't know how extremal wormholes persist, not sure anyone does for sure, but the hint is at least as long as entanglement of one quibit persists). In a sort of very "macro" picture what's happening is gravity is what other forces "push off" --- topologically. The "EM-motor metaphor" is like gravity is the "stator" for the universe,and the gauge boson forces the "rotor" --- I got this off an engineer friend who's also an economist, Warren Mosler of MMT fame, of all people. It's only a metaphor but I kinda' like it.

  • @seionne85
    @seionne853 жыл бұрын

    To everyone complaining about the background music, I think that was on Dr. Smolin's end. Because it seems to only play while he is speaking. He may have had his rebellious teenage grandson's garage band practicing downstairs 😂😂

  • @joyecolbeck4490
    @joyecolbeck44903 жыл бұрын

    You two are just marvellous. Thankyou for a thoroughly enjoyable chat.

  • @DrBrianKeating

    @DrBrianKeating

    3 жыл бұрын

    Appreciate that Joye

  • @PhysicsNative
    @PhysicsNative3 жыл бұрын

    I read Lee’s latest book on QM. I thought he left out some very credible interpretations (not of the Bohm or Bell type) of QM that resolve the paradoxes and address Einstein’s primary concern: nonlocality. To be fair, Rovelli’s interpretation also does not really address nonlocality either.

  • @Zzz98643
    @Zzz986433 жыл бұрын

    Hi Brian, love your podcast. I'm curious to know your opinion on Infinite category theory and Constructor theory. Greetings from Serbia :D

  • @DrBrianKeating

    @DrBrianKeating

    3 жыл бұрын

    Would love to learn more about both of those. Only so much time… I do have some math focused episodes queued up! Have a great weekend!

  • @tensevo
    @tensevo3 жыл бұрын

    I agree that the laws could be changeable across space and time. I find it oddly comforting that listening to great physicists, as they have grappled with physics their wholes lives, they feel no certainty, perhaps less certainty about what we know. The trick is to learn how to live without certainty. Live in awe and gratitude at the power and wonder of the Universe.

  • @guitarslim56

    @guitarslim56

    8 ай бұрын

    "Laws" are written by people. People change their mind from time to time. That's why the laws change.

  • @tensevo

    @tensevo

    8 ай бұрын

    @@guitarslim56 but only laws that everybody agrees on, stand.

  • @tensevo
    @tensevo3 жыл бұрын

    30:33 Really interesting ideas on time. Past: Determined. I was what it was. Present: It is what we experience and the result of the past. It is what it is. Future: Indefinite realm. It is what you make it, within the bounds of physical reality, but your starting point was pre-determined.

  • @jonathanhockey9943
    @jonathanhockey9943 Жыл бұрын

    That thought on the twin paradox was an interesting one, with analogy with the moment of measurement in quantum theory

  • @bouhschnou
    @bouhschnou3 жыл бұрын

    is it possible that, one day, we listen to the basics of strings theory, such as Thales or Pytharorus theorem for maths?

  • @sibbyeskie
    @sibbyeskie3 жыл бұрын

    Thanks Brian for including helpful graphics. I’m finding myself increasingly wanting to learn the guts of the physics discussed; the math and terms that go beyond pop literature. I think we’ve underestimated the broad appeal of science AND the competency and capacity to learn by the average person sufficiently committed. I’m certainly surprising myself the deeper I go. So, many thanks !

  • @DrBrianKeating

    @DrBrianKeating

    3 жыл бұрын

    Hi SE. yes you noticed. This is a new format for my channel. Glad you like it. I’m going to keep doing it. Please share with folks so i can help get new members on this journey!

  • @oraz.
    @oraz.3 жыл бұрын

    I dunno if the music helps, it makes the pace seem rushed, but big up to both of you.

  • @DrBrianKeating

    @DrBrianKeating

    3 жыл бұрын

    Thanks

  • @simplyzach
    @simplyzach3 жыл бұрын

    Love Lee, love how you are giving a voice to anti establishment physics. This stagnation in physics I whole heartedly believe is due to the stubbornness of academia. Is gravity simply emergent? Is dark energy simply a second inflation event? Can a "slow bang" explain it away? Are we too focused on making "right now" applicable to the past and the future? Are fundamental physics evolving over time? Are we simply living on a temporal island of stability? I ask myself things like this every day. We need more out of the box thinking, because strumming the theory of strings is getting us nowhere.

  • @DrBrianKeating

    @DrBrianKeating

    3 жыл бұрын

    Thanks so much. Stay tuned for more great guests next week!

  • @williambunting803
    @williambunting8033 жыл бұрын

    If Einstein was right with E=MC^2 then there is only one building block of the Universe, and that is Energy. The first question has to be what is the nature of the actual energy itself. Energy as we experience it is confined by a field, the Higgs Field. So that is a second building block which by Einstein’s theory must be energy in a different form to that of Matter Energy. Consider for a moment what properties Energy without a constraint field would have? It is logical that energy without constraint is infinite and therefore dimensionless for both space and time. Space and Time are emergent properties of spontaneous transition of infinite energy to energy with two properties which I suggest could be thought of as Dynamic Energy and Static Energy where Static Energy is the Higgs Field. Energy as we observe it is either moving (photons, electrons, quarks, neutrinos, gluons, etc) or static in the form of fields that mediate the nature of the dynamic energy passing through it. If you look at the universe from that perspective every thing we experience are emergent properties of the confinement of the dynamic form of energy which I perceive to be string like in nature and everything we know are clues as to how dynamic energy is contained within the field. So string theory is the only solution consistent with the fundamentals.

  • @xkagutaba
    @xkagutaba3 жыл бұрын

    Thanks again for the interview! Now when it comes to Octonions, John Baez is the grand master. His insights into mathematical and fundamental physics are brilliant as well. One of my heroes to be honest. Also, any plans on inviting Chiara Marletto to talk about Constructor Theory? Her interesting book just came out earlier this month, The Science of Can and Can't. By the way, sorry that I throw some names every now and then here. It's just that you have a great way of picking people's brains and make them reveal their cool ideas :)

  • @DrBrianKeating

    @DrBrianKeating

    3 жыл бұрын

    Thanks I really will try to get her LIVE

  • @xkagutaba

    @xkagutaba

    3 жыл бұрын

    @@DrBrianKeating Great!

  • @DrBrianKeating

    @DrBrianKeating

    3 жыл бұрын

    Thanks!

  • @bernardofitzpatrick5403

    @bernardofitzpatrick5403

    3 жыл бұрын

    Also david Deutsch, the originator of constructor theory. Winner of Dirac prize and medal. A real character and brilliant.

  • @DrBrianKeating

    @DrBrianKeating

    3 жыл бұрын

    Agreed

  • @Jannikheu
    @Jannikheu3 жыл бұрын

    The closing words are quite inspiring and poetic! I'm going to quote them in my little notebook in which I collect all aphorisms that are meaningful to me.

  • @DrBrianKeating

    @DrBrianKeating

    3 жыл бұрын

    Thanks very much. Have a great weekend!

  • @Jannikheu

    @Jannikheu

    3 жыл бұрын

    @@DrBrianKeating Thank you, you too :)!

  • @arjundey807

    @arjundey807

    2 жыл бұрын

    I’m still kind of confused does this video show that the string theory is rubbish or does it prove the theory ?

  • @duggydo
    @duggydo3 жыл бұрын

    I love that intro sooooo much. I usually play it at least twice when I watch your videos.

  • @DrBrianKeating

    @DrBrianKeating

    3 жыл бұрын

    Thank you, so much

  • @KaliFissure
    @KaliFissure2 жыл бұрын

    That mass particles/units are quantum makes the magnetic field act quantized. It does not show that the fields themselves are quantized. How do you have energy densities but no gravity? Gravity is measure of energy density in local vacuum.

  • @robertflynn6686
    @robertflynn66863 жыл бұрын

    Ztrings occur in living structures. That is one reason to unify forces for free will possibilities in physics to control all the 4 forces from another point. These are complex fractal string dimensions in number theory which underlies our brain physics of numbers. 🥸 /string dimensions being 1nerves and2 blood vessels centering in the heart and brain to coordinate all living events such as rhythms, and 3neurofibers inside nerves.

  • @jatinkiran7626
    @jatinkiran76263 жыл бұрын

    I really, really wanted to watch this but the random back ground music while I'm trying to listen to both people talk is super frustrating. Is there any way for this to be uploaded without it?

  • @DrBrianKeating

    @DrBrianKeating

    3 жыл бұрын

    Sorry JK not this time

  • @jatinkiran7626

    @jatinkiran7626

    3 жыл бұрын

    @@DrBrianKeating No worries :) I look forward to your future uploads! The conversation was amazing.

  • @DrBrianKeating

    @DrBrianKeating

    3 жыл бұрын

    Thanks very much !

  • @davidwilkie9551
    @davidwilkie95513 жыл бұрын

    A version of theories is incomplete, if the fundamental elemental principles are correct, "the devils are in the details".

  • @IronCandyNotes
    @IronCandyNotes3 жыл бұрын

    A theory of everything would be a seed value and some function/algorithm for whats next.

  • @DrBrianKeating

    @DrBrianKeating

    3 жыл бұрын

    Indeed

  • @tensevo
    @tensevo3 жыл бұрын

    What I like about Lee is that he seems to prick the bubble of theoretical physics in a nice way. Too many believe the map is the territory. If I understand him correctly I think he is astutely aware that the map (i.e. quantum physics) is not the territory.

  • @DrBrianKeating

    @DrBrianKeating

    3 жыл бұрын

    Yes I agree Mark. He does so in good humor too.

  • @youtubesucks1885
    @youtubesucks18852 жыл бұрын

    Why is LQG unable to reproduce general relativety in the classical limit?

  • @schmetterling4477

    @schmetterling4477

    2 жыл бұрын

    Why is string theory? :-)

  • @salmanuel4053
    @salmanuel4053 Жыл бұрын

    The articulation of your graittude to Lee Smolin was deeply true and meaningful.

  • @DrBrianKeating

    @DrBrianKeating

    Жыл бұрын

    Thanks

  • @chadriffs
    @chadriffs2 жыл бұрын

    Time is a result of spin which creates a forward, backward and a center. This creates time whereas the flow of strings or waves doesn't have direction or a present, future and past. The future and past equally can inform our present though and can't be defined unless you consider a larger system in motion.

  • @volldillo
    @volldillo2 жыл бұрын

    Could you please provide a vid with the same content, but without background music, please? Your background music is too loud, it distracts, it makes it very very difficult to understand Lee Smolin's words. Thank you.

  • @KaliFissure
    @KaliFissure2 жыл бұрын

    It’s the cardioid and inversion of the circle, as they are in a way the same.

  • @AetheismRules
    @AetheismRules2 жыл бұрын

    I would love to have heard Smolin - (obviously brilliant) but the audio is a bit noisy - and not helped by the "background" music. Others seem to have managed Ok ....

  • @wulphstein
    @wulphstein2 жыл бұрын

    An experiment that is called a Photon Wormhole or an Artificial Worm Hole is an idea that is worth explaining. Imagine if you had access to a wormhole. You can think of the wormhole in the movie Stargate if you like. What would happen if you took a laser and shined it directly into the wormhole? The photons would travel along the wormhole to the other side. But you have to remember that the wormhole is gravitationally either uphill or downhill. So in that sense, we are talking about a real physics phenomena called Gravitational Redshift. Gravitational redshift is normally talked about when photons are emitted from the event horizon of a black hole and have to climb out of the energy well. when they do climb, the photons redshift. If you were to shine a laser into a black hole, the photons would blueshift until they reach the event horizon. Likewise, a wormhole has two ends, and one end has a higher gravitational potential than the other, so that whatever falls into the wormhole can fall in the right direction. But photons will travel in both directions, both uphill and downhill. We don't have a wormhole like the one on Stargate. But we can simulate a wormhole by attaching an optical fiber along the radius of a spinning disk of radius r = 2 meters, that is spinning at 5000 RPMs. Depending on which way the photons enter, will determine if the photons are going uphill or downhill. The best quality Artificial Worm Hole would be able to continually allow the photons to climb or fall along the path of the optical fiber, by having a optical fiber path that brings the photons back to the start point to climb or fall again. This is a prerequisite to warp drives.

  • @tnekkc
    @tnekkc Жыл бұрын

    I only have two years of college calculus.... and I never believed in string theory for a second....If a know nothing like me can see that, imagine how many well informed scientists had to hold their noses for years.

  • @hungryformusik
    @hungryformusik Жыл бұрын

    At the end I almost cried. So emotional, so loving.

  • @bernardofitzpatrick5403
    @bernardofitzpatrick54033 жыл бұрын

    Lee Smolin is a legend. Just luv him - unique lovable personality and intelligence. 🔥. That he inclines toward Feyerabend’s approach to the philosophy of science is awesome.

  • @DrBrianKeating

    @DrBrianKeating

    3 жыл бұрын

    Thanks very much

  • @kokopelli314
    @kokopelli314 Жыл бұрын

    Interviews are great but they would be far far better with no background music!

  • @jerryharvey3304
    @jerryharvey33043 жыл бұрын

    Does anyone ever think that youtube could possibly improve the "comments and discussion" format? I have trouble reading everything everyone has said, or in what order! lol Then I think if I comment, I wouldn't have realized that someone here had previously had my same thought!

  • @kosmos5420
    @kosmos54203 жыл бұрын

    If you’re to interview serious thinkers, you should focus on the content and drop the random shiny clips and poor design choices… Its just not your strength.

  • @OldFartGrows
    @OldFartGrows3 жыл бұрын

    OMG, as if a deep dive with master Lee wasn't enough, your efforts in making the backgrounds & call outs to papers was very helpful in keeping the attention of this 62yo ex house painter with ADHD. Can't wait for you to resume live talks. I'm fully vaccinated and ready to party 🎉

  • @DrBrianKeating

    @DrBrianKeating

    3 жыл бұрын

    Love this kinda feedback

  • @debyton
    @debyton2 жыл бұрын

    Human ignorance often inhabits those aspects of the world that we refuse to include in our considerations. These are usually aspects that we find repugnant due to cultural and traditional pressures. As it turns out, the other situation in which the macro universe meets the quantum universe is in you. It is in your position of view (POV). It is in ones' individuality. The fact that you perhaps find this idea repugnant should be taken as the clue that individuality may indeed be the missing link. The well-considered 'LINE' (Life Instantiated by Natural Entanglement) hypothesis outlines this idea captivatingly.

  • @JH_Phillips
    @JH_Phillips3 жыл бұрын

    This was an amazing interview. Thank you, Brian! As much as I love the live interviews, this edit really improved the production quality and my overall enjoyment of the video with all of the visuals and edits.

  • @DrBrianKeating

    @DrBrianKeating

    3 жыл бұрын

    Thank you Jess

  • @wulphstein
    @wulphstein2 жыл бұрын

    I wish the physics community would figure out the mechanisms that make physics work, so that we can build a warp drive. If you need ideas, I have ideas.

  • @paulthomas963

    @paulthomas963

    2 ай бұрын

    will never happen because that theory is false.

  • @theultimatereductionist7592
    @theultimatereductionist7592 Жыл бұрын

    As a published PhD Mathematician, physicists (both theoretical AND the experimentalist ones who criticize theorists) annoy me. We mathematicians have no problem amongst ourselves. Conflicts between different subsets of physicists do not concern us mathematicians. We are quite a happy open-minded bunch.

  • @wulphstein
    @wulphstein2 жыл бұрын

    The way to a quantum gravity theory is through an experiment called the Photon Wormhole. We have all the materials that we need to build it: (1) high RPM motor (2) optical fiber (3) high powered lasers (4) computer (5) lenses and mirrors. The goal is to reproduce the gravitational redshift that photons experience when they fall into the gravity well of a black hole. Since we don't have a black hole, we're going to simulate the gravity effects by centrifuging an optical fiber pathway. A photon wormhole is the prerequisite to a warp drive.

  • @cosmikrelic4815

    @cosmikrelic4815

    2 жыл бұрын

    i presume you are parroting ringbauer and his paper in new scientist. you state it as fact, howver: "Charles Bennett of IBM says that the results from the experiment are “entirely predictable from well-established principles of quantum optics” and that what is instead needed is “continued theoretical exploration of closed time-like curves’ consistency with, and consequences for, other parts of physics”. He also believes that the experimental set-up “does not function as a mechanism for reliably distinguishing non-orthogonal states”. This is a view shared by Antoni Wójcik of Adam Mickiewicz University in Poland, who says that the experiment “provides very interesting confirmation of standard quantum mechanics but “does not answer any question” concerning time-travelling quantum particles." seth lloyd is also sceptical.

  • @bbassdf
    @bbassdf2 жыл бұрын

    Lee, you are a beauty of a masterpiece, god bless you.

  • @arjundey807

    @arjundey807

    2 жыл бұрын

    I’m still kind of confused does this video prove that the String theory is rubbish or does it show the theory is truthful ?

  • @deplant5998
    @deplant59983 жыл бұрын

    Had to stop watching due to the DUMB BACKGROUND MUSIC.

  • @das_it_mane
    @das_it_mane2 жыл бұрын

    Brian's face at 44:40 lol! Lee blowing everybody's minds

  • @illogicmath
    @illogicmath2 жыл бұрын

    And even black holes perhaps don't exist because after all, from our point of view as distant observers, black holes never come into existence because we never see matter falling into a black hole. If this is the case GR doesn't need to be quantized and information paradox simply does not exist at all

  • @paulthomas963

    @paulthomas963

    2 ай бұрын

    There are still many problems with gravity esp. SR.

  • @phpn99
    @phpn999 ай бұрын

    TIME = MOTION -> at any scale, which means that any form of change, even within solid states, requires an agent in motion.

  • @psi.squared9448
    @psi.squared94483 жыл бұрын

    Brian are you still sitting on an unreleased Nima Arkani Hamed interview??! Come onn let us have it

  • @DrBrianKeating

    @DrBrianKeating

    3 жыл бұрын

    I wish. I will record one this summer inshallah

  • @psi.squared9448

    @psi.squared9448

    3 жыл бұрын

    @@DrBrianKeating I recall you talked about it at some point, but I thought it already took place Can’t wait

  • @sibbyeskie

    @sibbyeskie

    3 жыл бұрын

    Oh wow I cannot wait!

  • @joqqy8497
    @joqqy84978 ай бұрын

    Lee is a wise, intelligent and good man. You can just hear it when he speaks and in what he says.

  • @davidwilkie9551
    @davidwilkie9551 Жыл бұрын

    "No one's right if everyone is wrong". Real-time physical manifestation projection-drawing of stringed nodal-vibrational sequences is subject to the same perceptions of Uncertainty Principle in e-Pi-i sync-duration connectivity function that Forms the Holographic Principle Imagery state-ments of Singularity-point positioning.

  • @dewiz9596
    @dewiz9596 Жыл бұрын

    I read Lee Smolin’s book years ago, and searched for the follow up without success

  • @wulphstein
    @wulphstein2 жыл бұрын

    Superstrings actually do exist. But they're not particles or fields. Superstrings are actually thoughts. They're thoughtforms. Any particular thought, besides being made of neurochemicals, it's also made of a wavefunction shape that is equivalent to the V(x,y,z,t) term of the Schrodinger equation that is equivalent to the chemicals that would take the shape of the wave function that would be the solution to the Schrodinger equation with that particular V(x,y,z,t). In other words, superstrings do exist. But they're not for particles. Superstrings are the thoughtforms, the things that a psychic would be able to pick up on or a mind reader. Can you imagine the utter shock that the physics community would have if their prized theory, superstring theory, was a better description of thoughtforms, the things that brains emit (and receive). Can you imagine how horrified and embarrased materialist physicists would be if they knew that superstrings (the most complicated, least woo things that could possiblity exist, could be a particle that makes woo woo woo wooo woooo psychics and mind readers possible?

  • @farooqueparvez2767
    @farooqueparvez27672 жыл бұрын

    Beautiful and humble conversation

  • @DrBrianKeating

    @DrBrianKeating

    2 жыл бұрын

    Amazing Thanks so much! *What was your favorite takeaway from this conversation?* _Please join my mailing list to get _*_FREE_*_ notes & resources from this show! Click_ 👉 briankeating.com/mailing_list.php

  • @farooqueparvez2767

    @farooqueparvez2767

    2 жыл бұрын

    Thanks Dr Brian, i learnt a lots about Lee's contribution to Quantum gravity, biology, philosophy, he is an amazing scientists...

  • @DrBrianKeating

    @DrBrianKeating

    2 жыл бұрын

    Thanks so much

  • @PhysicsNative
    @PhysicsNative3 жыл бұрын

    Brian, Just a suggestion, but it may be worth having debates again, not over the “TOE” but more mundane topics, such as the existence of black holes and the foundation of the physics underpinning them. Quite a few credible alternative models out there for gravitational collapse that don’t admit BH solutions (horizons, singularities). The science is not settled, despite Nobel awards that suggest the contrary. Confirmation bias has no place in scientific method!

  • @DrBrianKeating

    @DrBrianKeating

    3 жыл бұрын

    Great ideas

  • @Appleblade
    @ApplebladeАй бұрын

    Contra what I so far (admittedly math free) understand Einsteinian space-time to be: When someone speeds away and his processes slow down relative to his twin's, unless there are gaps in the traveler's existence there is one-to-one co-existence between them at any moment (you can pause, presumably, at any moment and find them both in the midst of some activity). What this implies, I think, is that time and the rate of change must be different things. Speed stretches moments, otherwise there would be those existential gaps. And if speed stretches moments, then some third thing (absolute time) is required to explain what the differing length moments share as a common denominator. This is just the temporal corollary of an argument against Einstein's, Leibniz's, other's view of space... that postulating reality as space free until objects appear makes no sense because the relevant objects supposed to bring space into being are inherently spatial themselves and so presuppose the reality of space prior to even the possibility of their existence. Also, the thought experiment against absolute space I have heard seems to me to fail: the argument is, if space had independent existence from objects you could move all of it 10 meters in some direction and you'd have a change without a difference. But space is infinite in all directions from any given point if space is absolute, and so there is nowhere for space to move (as proposed), so the thought of it moving is incoherent. Anyway... that's where I'm stuck trying to make sense of these basic ideas.

  • @ericreiter1
    @ericreiter1 Жыл бұрын

    I wish I understood what these people were talking about. These discussions do not discuss any experimental detail from which one can determine how they make their hypotheses. It is a common flaw. I explain my theory directly from timing and pulse-heiights of clicks in detectors. Does a magnetic field from a superconductor really get strung together in lines? How do they know that? I do not buy it. Etcetera.

  • @Benjamin93swe1
    @Benjamin93swe13 жыл бұрын

    Yeah, I agree, I think you should take away atleast the pictures, maybe the music can stay, to some extent. I think you´re content is enough. My personal preference is to create my pictures in my imagination while listening. I think you can have music at rare moments, to build up excitement for example. You have a really good podcast so the content is enough, you don´t need paraphernelia.

  • @Benjamin93swe1

    @Benjamin93swe1

    3 жыл бұрын

    When you show books, that is nice. And papers.

  • @clintadkisson
    @clintadkisson3 жыл бұрын

    Had to stop after a few minutes due to distraction of background music.

  • @DrBrianKeating

    @DrBrianKeating

    3 жыл бұрын

    Oh. That’s too bad.

  • @clintadkisson

    @clintadkisson

    3 жыл бұрын

    @@DrBrianKeating Could you possibly reupload without the background music? I'd love to listen to this interview.

  • @DrBrianKeating

    @DrBrianKeating

    3 жыл бұрын

    No unfortunately.

  • @manuelcasanova5698
    @manuelcasanova56983 жыл бұрын

    "Intellectually impossible is a version of the story of my lives." heheh. good luck with the translations and books you are creating for us. later.

  • @DrBrianKeating

    @DrBrianKeating

    3 жыл бұрын

    Thanks Manuel. Have a great weekend!

  • @JimGobetz
    @JimGobetz3 жыл бұрын

    Another great one, thanks Brian

  • @DrBrianKeating

    @DrBrianKeating

    3 жыл бұрын

    Thanks! Let me know who else you’d love to see!

  • @JimGobetz

    @JimGobetz

    3 жыл бұрын

    @@DrBrianKeating You've had so many great guests so it's hard to answer but David Kipping comes to mind, I think he'd be an interesting interview with you.

  • @DrBrianKeating

    @DrBrianKeating

    3 жыл бұрын

    Thanks I’ll look into him. Have a great weekend! Jim

  • @mikegale9757
    @mikegale97573 жыл бұрын

    The time is now. The now is real. Now we're talking! Perceptions of simultaneity are just that - perceptions. If you see blue in front and red behind, your perception is skewed. You need to find the centre of momentum in order to deduce when it's now over there.

  • @worththewatch1517
    @worththewatch15172 жыл бұрын

    I only like him because I always believed string theory is wrong.

  • @schmetterling4477
    @schmetterling44773 жыл бұрын

    It's much worse than that. String theory is still not even wrong.

  • @afriedrich1452
    @afriedrich14522 жыл бұрын

    Smolin's Cosmological Natural Selection idea is lent a little credence by James Gate's discovery that error correcting codes can be found in the supersymmetric equations associated with string theory (how ironic). Error correcting 'codes' are found in DNA to prevent too much mutation from happening. Maybe error correcting codes are part of the fabric of the universe to control the mutations during reproduction of universes. You would not need error correcting codes if mutations were not happening at all. Error correcting codes control the rate and manner of mutations - too much and too little mutation is not good. Error correcting codes in DNA are also subject to evolution, meaning that the proper amount of error correction is selected for.

  • @schmetterling4477

    @schmetterling4477

    2 жыл бұрын

    Oh, boy, another creationist wannabe. This time it's a deist one. ;-)

  • @unvergebeneid
    @unvergebeneid2 жыл бұрын

    I didn't quite get that part where the universe is about friendship or whatever.

  • @seionne85
    @seionne853 жыл бұрын

    Great interview, the topic of chirality is one I'm still trying to twist my brain around fully ;)

  • @Fritzybedeek
    @Fritzybedeek3 жыл бұрын

    That bg music is so irritating

  • @michealhunter7924
    @michealhunter79243 жыл бұрын

    Very interesting show but the audible on smolins side was terrible. i could not understand half of it.

  • @DrBrianKeating

    @DrBrianKeating

    3 жыл бұрын

    Next time we will be in person I hope

  • @stormtrooper9404

    @stormtrooper9404

    3 жыл бұрын

    We all must addapt to the circumstances! Smolin was probably online from an laptop, and those have very very cheap and poor microphones. We can't blame either of them for the weak audio quality, but we can be gratefull that Dr. Brian make this conversation possible. (And shhh🤫 but mr.Smolin is senior citizen, so we must have understanding for his talking)

  • @DrBrianKeating

    @DrBrianKeating

    3 жыл бұрын

    Thanks for your understanding

  • @pdcoates
    @pdcoates2 жыл бұрын

    I started to watch this then I thought, WTF life is too short to waste it on proven dead ends. RI(not in peace) string theory.

  • @mrsbenedictcumberbatch9565
    @mrsbenedictcumberbatch95653 жыл бұрын

    Background music was very distracting...

  • @DrBrianKeating

    @DrBrianKeating

    3 жыл бұрын

    Hmmm that’s the first I have heard of that

  • @mrsbenedictcumberbatch9565

    @mrsbenedictcumberbatch9565

    3 жыл бұрын

    @@DrBrianKeating glad to bring it to your attention

  • @FallenStarFeatures
    @FallenStarFeatures Жыл бұрын

    Michio Kaku is a sideshow barker but where in this video did Lee Smolin weigh in on String Theory? All I heard him address is Kaku's claim that Loop Quantum Gravity fails to account for fermions, which Smolin readily debunked.

  • @Robocop-qe7le
    @Robocop-qe7le3 жыл бұрын

    The sound comes from another universe I guess.

  • @loren-emmerich
    @loren-emmerich3 жыл бұрын

    dark energy is the force gravity (cosmological constant) reacts to.

  • @nunomaroco583
    @nunomaroco5833 жыл бұрын

    Over the Top, best ever to me, thanks great work.

  • @DrBrianKeating

    @DrBrianKeating

    3 жыл бұрын

    Nuno you’re the best. Have a great weekend!

  • @nunomaroco583

    @nunomaroco583

    3 жыл бұрын

    @@DrBrianKeating Hi thanks, amazing brain storm, gráfhics help a lot to understand concepts, all the Best.

  • @DrBrianKeating

    @DrBrianKeating

    3 жыл бұрын

    Thanks very much

  • @joemarchi1
    @joemarchi13 жыл бұрын

    Great conversation!

  • @DrBrianKeating

    @DrBrianKeating

    3 жыл бұрын

    Thanks so much Joe! *What was your favorite takeaway from this conversation?* _Please join my mailing list to get _*_FREE_*_ notes & resources from this show! Click_ 👉 briankeating.com/mailing_list.php

  • @joemarchi1

    @joemarchi1

    3 жыл бұрын

    @@DrBrianKeating Your conversation with Prof. Smolin evolved, splitting into several distinct parts which could be separate discussions unto themselves -> i.e., exploring the interrelationship between the experimentalist & theorist experience. My favorite takeaway was what I understood to be the underlying theme that spanned the entire length of the conversation ... the nature of time and its direct implications with respect to GR & QM and their possible unification. This theme underlies much of what I think about as an interested amateur. It is helpful to be able to take the deeper the professional approaches and compare them to my own ideas. Our understanding of time, or lack thereof, seems to me the greatest and most primal impediment to unifying the two great physical paradigms of the last 100+ years. I have my own ideas built up over 50 odd years and it is ALWAYS enlightening to get the deeper professional viewpoint directly and honestly. So thanks to you and Prof. Smolin ... I learned a lot from this really enjoyable experience! When used properly, as you do, the internet is a wonderful educational tool especially for those of us without Ph.Ds.

  • @DrBrianKeating

    @DrBrianKeating

    3 жыл бұрын

    Thanks Joe. That is such amazing feedback to hear

  • @joemarchi1

    @joemarchi1

    3 жыл бұрын

    @@DrBrianKeating I thought I might write a few words re: what I meant ... fwiw ... Maybe discrete time can emerge from a continuous background. It might be envisioned if we are willing to alter the original Ekpyrotic proposition by Turok & Steinhardt et al in a few important ways (which I won't bore you with). I think of atoms and their internal structure as sophisticated, dynamical containment vessels, each with a specific aggregate upper headroom limit (storage capacity). Their role in nature is to channel excess energy through a hierarchical particle transfers complex (hot potato) until the excess is released via several different mechanisms back into the continuous background by means of atomic oscillation, release of several varieties allowed discrete quantum packages etc. Atoms are therefore metaphorically akin to intricately structured variac actuated capacitors. One of the allowable quantum release packages is the graviton which is perhaps the finest of the fine tuning release options only to be reabsorbed and rereleased by other atoms. Weird I know but just a form of philosophical imagery I use in my personal attempts to bridge the chasm that separates GR & QM in my own mind.

  • @marsamatruh5327
    @marsamatruh53272 жыл бұрын

    Dear Mr. Smolin, why you are not working with Stephen Wolfram ? He has the key of everything.

  • @sombh1971
    @sombh19713 жыл бұрын

    5:25 This is whataboutery at its worst, forget about whether LQG has fermions or not, why should I believe your theory when you don't even stand a chance in hell of computing g-2 from first principles?

  • @landroveraddict2457

    @landroveraddict2457

    3 жыл бұрын

    kzread.info/dash/bejne/eIGHz6x8e8THc5M.html 👍

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