Edward Frenkel: Reality is a Paradox - Mathematics, Physics, Truth & Love | Lex Fridman Podcast #370
Osh0-J3T2nY • 2023-04-10
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Kind: captions Language: en there is a famous story about Einstein that he used to you know go think think and then go for a walk and like he would whistle and sometimes so I remember the first time I heard this story I thought how interesting so the coincidence that he came to him when he was whistling but in fact it's not this is how it works in some sense that you have to prepare for it but then the moment it happens when you stop thinking actually it's okay the moment of Discovery is the moment when thinking stops and you know you kind of you kind of almost become that truth that you're seeking the following is a conversation with Edward Frankel one of the greatest living mathematicians doing research on the interface of mathematics and quantum physics with an emphasis on the langlands program which he describes as a grand unified theory of mathematics he also is the author of love and math the heart of hidden reality this is the Lex Friedman podcast to support it please check out our sponsors in the description and now dear friends here's Edward Franco you open your book love and math with a question how does one become a mathematician there are many ways that this can happen let me tell you how it happened to me so how did it happen to you so first of all I grew up in the Soviet Union in a small town near Moscow called columna and I was a smart kid you know in school but mathematics was probably my least favorite subject not because I couldn't do it I was you know a straight A student and I could do all the problems easily but I thought it was incredibly boring and um since the only math I knew was what was presented at school I thought that was it and I was like what kind of boring subject is this so what I really liked was physics and especially quantum physics so I was buying uh I would go to a bookstore and buy popular books about elementary particles and atoms and things like that and read them you know devour them and so I thought my dream was to become a theoretical physicist and to delve into this finer structure of the universe you know so then something happened when I was 15 years old uh it turns out that a friend of my parents was a mathematician who was a professor at the local College it was a small College preparing Educators and teachers it's a provincial Town imagine it's like a 117 kilometers from Moscow which would be something like 70 miles I guess you do the math I like how you remember the number exactly yeah it's not funny how we remember numbers yeah so his name was evgeny evgenievich Petrov yeah and if this doesn't remind you of the great works of Russian literature then you haven't read them like War and Peace you know like with the patronym nickname yeah but this was all real this was all happening so my mom One Day by chance met is ganovic and told him about me but that was this bright kid and interested in physics and he said oh I want to meet him I'm going to convert him into math and my mom's like nah my ass he doesn't like mathematics so they said okay let's let's see what they can do so I went to see him so I'm about 15. and a bit a bit uh arrogant I would say you know like average teenager so he says to me so I hear that you are um interested in in physics Elementary particles I said yeah sure for example do you know what quirks and I said yes of course I know what quarks quarks are the you know constituents of particles like protons and neutrons and it was one of the greatest discoveries in theoretical physics in the 60s that those particles were not Elementary but in fact had the smaller parts and he said oh so then you probably know representation theory of the group su3 this is like as you worked so in fact I wanted to know what was what were the underpinnings of those theories I knew the story I knew the narrative a new kind of this basic story of what this particles looked like but how did physicists come up with these ideas how were they able to theorize them and so I remembered you know like it was yesterday so he pulls out a book and it's kind of like it's like a Bible you know like a like a substantial book and he opens um somewhere in the middle and there I see the diagrams that I saw in popular books but in popular books there was no explanation and now I see all these weird symbols and equations it's clear that it is explained in there oh my God he said you think what they teach you at school is mathematics it's like no this is real mathematics so I was instantly converted that you understand the underpinnings of physical reality you have to understand what su3 is you have to learn what are groups what this group su3 what are representations of sc3 there was a coherent and beautiful I could appreciate the beauty even though I could not understand heads and tails of it but you were drawn to the the methodology the the the Machinery of all such understanding could be attained well in retrospect I think what I was really craving was a deeper understanding and up to that point the deepest that I could see was for those diagrams but for that story that you know a proton consists of three quarks and the neutron consists of trick works and they're called up and down and so on but I didn't know that there was actually underneath beneath the surface there was this mathematical theory if you can just link around it what Drew you to quantum mechanics is there some romantic notion of understanding the universe well what is interesting to you is it the puzzle of it or is it like the philosophical thing now I am looking back yeah so um whatever I say about Edward at 15 yeah he's colored by uh my you know all my experiences that happen in in the meantime I should say current views and so on for the people who may not know you I think your book and your presentations kind of revealed that that 15 year old is still in there somewhere I think it is a conflict some of the joy he's probably still here now yes yeah in some way yeah I think it was a joy of Discovery and the joy of going deeper into the kind of the uh to the root uh to the so the deepest structures of the universe the secrets the the secrets and we may not discover all of them we may not be able to understand but we're going to try and go as far and as deep as we can I think that's what was the motivating factor in this yeah there's this mystery there's this dark room and there's a few of these mathematical physicists they're able to shine a flashlight briefly into there uh we'll we'll talk about it but it also kind of makes me sad that there's so few of your kind that have the the flashlight to look into the room it's interesting um I don't think there are so few to be honest because I think I find a lot of people are actually interested if you do talk if you talk to people you know like some people you wouldn't expect to uh to be interested in this uh from all walks of life from people of all kinds of professions I tell them I'm a mathematician and the mathematician okay so that's a separate story a lot of people I think have been traumatized by their experience in their math classes we can talk about it later but then they ask me what kind of research I do and I I mentioned that I I work on the interface of math and quantum physics and their eyes light up and say oh quantum physics or like Einstein's relativity I'm really curious about it I watched this podcast or I watch that podcast you know and I've learned this it's like what do you think about that so I actually find that that actually physicists are doing great job at educating the public so to speak and uh in terms of um popular books and videos and so on mathematicians are behind that we're starting to catch up a little bit have been starting last 10 years but when we're still behind but I think people are people are curious science is a is still a very much uh you know something that people want to learn because that's our kind of uh the best way we know to establish some sort of objective reality whatever that might be yeah to figure out this whole puzzle to figure out the secrets that the Universe holds things that we can agree on kind of you know like even though for me at this point I always you know make an argument that our physical theorists always change they get updated so you had Newton's theory of gravity then um Einstein's theory you know superseded it but in mathematics it seems that theories don't change Pythagoras Theorem has been the same for the last 2500 years x squared plus y squared equals z squared we don't expect that next year suddenly it will be z cubed you know so and so that to me is actually even more um hints even more at home how how much we are connected to each other because dagger's theory if you think about it or any other mathematical theorem means the same thing to anyone in the world today regardless of their cultural you know bringing uh religion you know ideas ideal ideology gender whatever nationality race whatever right and it has meant the same to everyone everywhere and most likely will mean the same so that's to me kind of an antidote to the kind of divisiveness that we sometimes observe these days where it seems that we can't agree on anything to the political complexity of uh two plus two equals five and George Orwell's 1984. I was in the Soviet Union in 1984 and so in many ways I see that it was President the novel was present but we still have not found the dictator who would actually say two plus two equals five and would demand their citizens to repeat that the Knight is still young has not happened yet but it does feel like math and physics are both sneaking up to a deep truth from slightly different angles and you stand at the crossroads or at the intersection of the two it's interesting to ask what do you think is the difference between physics and Mathematics in the way physics and Mathematics look at the world there is actually an essential difference which is that physicists are interested in describing this universe okay mathematicians are interested describing all possible mathematical universes of which uh you know and some of our work I still consider myself more of a mathematician than a physicist My First Love for physics notwithstanding um mathematicians are in a way we have more diversity if you if you you might say so we we are accepting for instance uh our universe uh has three special spatial dimensions and one time Dimension right so what I mean is that allegedly allegedly observed but that way I can observe today right so of course there are theories where there are some hidden Dimensions as well well let's just say absorb to observe dimensions um so this tabletop has two Dimensions because you can have two axes two coordinate axes now X and Y but then there is also a third one to describe the space of this room and then there's a Time Time Dimension so realistic theories of physics have to be about spaces of of three three dimensions or space time so four dimensions but mathematically we are just as interested in theories in 10 space time Dimensions or 11 or 25 or whatever or or infinite dimensional spaces you know so that's the difference on the other hand I have to give it to the physicists we don't have the same satisfaction that they have of having their theories um confirmed by an experiment we don't get to play with big machines like LHC in Geneva A Large Hadron Collider that recently discovered you know the Higgs boson and some other things for us it's all like a mental exercise in some sense we do we prove things by using rules of logic and that's our way of confirming experimental confirmation if you will but I think we kind of I kind of Envy a little bit my friends visits that they they get to they get to experience this sort of these big toys you know and play with them but it does seem that sometimes as you've spoken about abstract mathematical Concepts map to reality and it seems to happen quite a bit that's right so the mathematics is the underpins physics obviously it's a language the the book of nature famously said it's written in the language of mathematics and the and the you know the the letters in it are the circles triangles and squares and those who don't know the language I'm paraphrasing are left to wander in the dark Labyrinth that's a famous quote from Galileo which is very true and has become even more true more recently in the in theoretical physics in the more in the most um actor of far out parts of the theoretical physics that have to do with Elementary particles and and as well as the the structure of the cosmos at the large scale what do you think of uh Max tag Mark or wrote the book mathematical universe so do you think just lingering on that point you think at the end of the day the future Generations will all be mathematicians meaning meaning the ones that deeply understand the way the universe works at the core is it just mathematics at the core of you know I would say mathematics is one half of the core so the book is called love and math yeah okay so these are the two pillars yeah in my view yes in other words you can't cover everything by math so mathematics gives you tools it gives you way up uh kind of a clear vision but mathematics by itself is not enough for one to have a harmonious and uh and balanced life you know so I I am suspicious of any theory that declares that everything is mathematics so math can generate things that are beautiful but it can't explain why it's beautiful Matthew could say is a way to discern patterns to find regularities in the universe and both physical and mental Universe the mathematics explores the mind as much as it explores um the physical world around us and it helps us to find those patterns um which kind of which makes our perception more sophisticated our ability to perceive things such as Beauty you know and it sharpens our ability to see to see beauty to understand Beauty so a world becomes more complex from thinking that our that our that Earth is flat we go to realizing that it is round that is shape as a sphere so that we can actually travel around the Earth you know so there isn't a place where we hit the end so to speak and then um proceeding in the same vein then Einstein's general relativity Theory tells us that our space-time is not flat either this is much harder to to imagine the band a band three-dimensional or four-dimensional three-dimensional space or four-dimensional space time because this idea that the space around us is flat is so deeply entrenched and yet we know from this from this Theory and from the experiments that have confirmed it that a array of light bends around a star as if being attracted by the by the force of gravity but in fact the force of gravity is the bending it's just that it's not only depending on the space it's also the bending of space-time there is a curvature not only between special spatial dimensions the way parallels and meridians come together in a small scale they look like perpendicular lines but if you zoom out you see that the spacer at a curving the space they are sort of the the tracks along which the space gets curved that's that's the that would be the curvature of spatial Dimensions but in fact now throw in time and one time imagine a sphere which lives which has one of the meridians correspond to time and the perilous crisp into space I can't imagine it but you can I can write mathematical formula expressing that curvature and that's in fact that curvature is responsible for the force of gravity attraction between the sort of simplest instantiation of it attraction between two planets all between two human beings at the time bending time it's not very nice that what that theory did to time because it feels like the marching of time forward is fundamental to our Human Experience there of time marching forward nicely seems to be the only way we can understand the universe and the fact that you can start now up to now there are people who claim that they can that they have they possess other ways of of experiencing it so truly can visualize messing with time well messing with time but not necessarily messing with time because one point of view is that you know I think who who was it I think William Blake who wrote that eternity loves time production so one point of view is that it is eternity which is fundamental where time stands still which our mind conceptualizes as the time so but in fact you know it's not something mystical if you think about when you about it when you really absorbed in something time does stand still and then you look at the clock and it's like oh my God two hours have passed and it felt like a couple of seconds when you are absorbed when you're in love when you are passionate about something when you're creating something you're we lose ourselves and we lose the sense of time and space for that matter you see so there is only that which is happening that creative process um so I think that this this is familiar to all of us and we may be actually the closest to the truth at that moment so yes so then there is a point of view that this is where we are we are who we are at our sort of fundamental at our fundamental level and after that the Mind comes in and tries to conceptualize it it's like oh because I was writing something um I was writing a book I was painting this painting or maybe I was watching this painting and got totally absorbed in it or I fell in love with this person that's what happened but in the moment when it's happening you're not thinking about it you're just there yeah we construct narratives around the set of memories that that seem to have happened in sequence or at least that's the way we tell ourselves that and we also have a bunch of weird human things like Consciousness and the experience of free will that we chose a set of actions as the time unrolled forward right and we are intelligent conscious agents making taste taking those actions but what if all of that is just an illusion an illusion and a nice narrative would tell ourselves sure that's a really difficult thing and imagine imagine that to make it really Catch-22 that I'll imagine that our minds and are set up in such a way yeah that they can't approach the world or experience otherwise so in other words to understand to see that from a more kind of all-encompassing point of view we have to step out of the Mind well I wonder what's the more honest way to look at things but I think we like to be to play with time I think we like to play with these experiences with all the drama of it with all the memories with all the tribulations I think we love it we love it otherwise we wouldn't be doing it I think this or Earth loves it The evolutionary process somehow loves it whatever whatever this thing that's being created here on Earth it seems to like to create like to allow its children to play with certain uh yeah truths that they hold this subjective truths that are useful for the competition or whatever this dance that we call Life broadly Define not just humans and and you know I'm glad you mentioned that because what I find fascinating is that the greatest scientists are on record saying that when they were making their discoveries they felt like children so Isaac Newton said to myself I only appeared as a child playing on the seashore and every once in a while finding a prettier Pebble or a prettier shell whilst I think some he says something like the infinite ocean of knowledge lady was lying before me who probably it was the greatest mathematician of the second half of the 20th century the French mathematician Alexander grotonic wrote that discover is a privilege of a child the child who is not afraid to be wrong once again to build to look like an idiot you know to to try this and that and paraphrasing and go through trial and error that is for them in other words for them that innocence of a child who is not afraid who has not yet been told that it cannot be done okay that was essential to Scientific pursuit to scientific discovery and now and now also compared to Pablo Picasso a great artist right so who said every every child is an artist the question is to how to preserve that as we grow up do you struggle with that you're one of the most respected mathematicians in the world uh your Berkeley you're like this this is the stature you're supposed to be very like you know yeah sometimes I joke I say I I think I take an elevator to the top of the Eiffel Tower every day yeah and you're supposed to speak like royalty uh do you struggle to let those uh strip all of that away to ReDiscover the child when you're thinking about problems when you're teaching when you're thinking about the world absolutely I mean that's part of being human because when we grow up I mean all of them all of these great scientists I think they were so great in part because they were able to maintain that connection okay in that Fascination that vulnerability um that spontaneity you know and uh um kind of looking at the World Through The Eyes of a child but it's difficult because you know you go through education system and for many of us uh it's not especially helpful for maintaining that connection that we kind of like we are being told certain things that we accept take for granted and so on and little by little and also we get hit every time we act different okay every time we act that that's in a way that doesn't fit sort of the pattern we get punished by the teachers get punished by parents and so on and don't get respect when you act childlike in your thinking when you are fearless and uh looking like an idiot that's right because there's a hierarchy nobody wants to look like an idiot you know once you start growing up or you think you're growing up yeah in the beginning you don't even think of you don't think in these terms you just play you're just playing and you are open to possibilities to these infinite possibilities that this world presents to us so how do we I'm not saying that education system should not be also uh kind of taming that a little bit obviously the goal is balance that acquiring knowledge so that we can be more mature and more discerning more discriminating in terms of our approach to the world in terms of our connections to the world and people and so on but how we do we do that while also preserving that innocence of a child and my guess is that there is no formula for this it is alive is an answer every life every human being is one particular answer to how do we find balance uh that's once imperfect approximation approximate solution but we could look we can look up to the great ones yeah who have credentials in the sense that they have shown and they have proved that they have done something that other humans appreciate our civilization appreciates say Isaac Newton or Alexander grotonic or Pablo Picasso so they have established their rights to speak about this matters and we could not dismiss them as mere Madman they say okay well if the same thing was said by somebody who never achieved anything in in that in their in their field of endeavor you will be it would be easy for us to dismiss it but when it comes from someone like Isaac Newton we take notice so I think it's something important that they teach us and especially today in this age of AI of course there's a big elephant in the room always which is called AI yeah right and so I know that you are an expert in this subject and we are going we're living now in this very interesting times of new AI systems coming online pretty much every couple of weeks so I kind of um to me that whole debate about what is it what is artificial intelligence where is it going what should we do about it needs an influx of this type of considerations that we've just been talking about that for instance the idea that inspiration creativity doesn't come from accumulation of knowledge because obviously child a child has not yet accumulated knowledge and yet the great ones are on record saying that a child has a capacity to to create and at an adult credits the inner child the inner child yeah for this capacity to create as an adult you see that's kind of weird if we take the point of view that everything is computation everything is accumulation of knowledge that just bigger and bigger data sets finer and finer neural networks and then we will be able to replicate human consciousness if we take that point of view then what I just said kind of doesn't fit because obviously a child has not been fed any training data as far as we know yet they're perfectly capable of of you know or distinguishing between cats and dogs for instance and stuff like that but much more than that they're also capable of that you know wide-eyed in the sort of perspective so does can it really be captured that perspective that sense of or can it really be captured by computation alone I actually I don't know the answer so I'm not sort of trying to uh to present a particular point of view interesting to question um any theory that starts out by saying life is this or Consciousness is this because when you look more closely you recognize that there are some other things at play which do not quite fit the narrative and it's hard to know where they come from it's it's also possible that the evolutionary process has created is the very it is computation and the and the child is actually not a blank slate but the result of one of the most incredible several billion year old computations uh that that had explored all kinds of aspects of of life on Earth of of war and love and Terror and ambition and violence and invention all of that from the bacteria to today so like that young child is not is not a blank slate they call me they're they're actually they hold within them the knowledge of several billions of years right the question is whether as a child you carry that in the form of the kind of computational algorithms that we are aware today you see what what strikes me as unlikely is that how should I put it how interesting that you know we you you are a computer scientist and there are other people come I have studied computer science so I know a little bit and so it's tempting to say oh the whole world is computer science or is based can be explained by computer science yes why because it makes me feel good because I have mastered it I have learned it my ego is very happy and people come to me and and they look up to me and they Revere me kind of like priests in the old in old days when the religion was Paramount wonder when you would be would tend to explain things in theological religious terms today science has progressed there are fewer people who kind of buy into religion official religion you know so we have this urge I suppose to to explain and to know and to dissect and to analyze and to conceptualize which is a wonderful quality that we have and we should definitely pursue that but I find it a little bit unlikely that the universe is just exactly what I have learned and not something that I don't know you see well there's a lot of interesting aspects of the current large language models that one perspective of it I think speaks to the love and math that you talk to which is they're trained on the human data from the internet so at its best a large language model like gpt4 captures the magic of The Human Condition on its full display it's full complexity it's just mimicking it's trying to compress all the weirdness of humans of all the debates and discussions the perspectives all the different ways that people approach solving different problems all of that compressed so we live we're each individual ants we only have like we have a family we interact with a few little ants and here comes AI That's able to summarize like a tldr report of humanity and that's the beauty of it so I embrace it but I wonder I'm very impressed by it I wonder if they can be very impressive meaning way more impressive in being able to fake or simulate or emulate a human right I'm glad you mentioned that because that's just it seems to be the Mantra it's just fake fake it till you make it yeah isn't it isn't that what we all do though no well yes we do that but we also do other things we can be truly in love we can be truly inspired when it is not fake I do believe call me a romantic okay but I do believe and this is a very good I'm glad you're putting it in these terms because I've had conversations like that that yeah fake it till you make it but that's like that's what humans do yes we do that but not all the time so and that is debatable because also I speak from my own experience and that's where the first person perspective comes in the subjective view I cannot prove to you for instance or anyone else that there are certain moments in my life where I am genuine I am pure so to speak when it's not faking it but I do I do have a tremendous a certainty of it and that's a subjective certainty now I am as a scientist I'm also trained to give more um credibility to objective arguments that another things that can be reproduced things that I can demonstrate that I can show but as I get older there we go as I get more mature hopefully you know I'm starting to question why I am not giving as much credibility to my subjective understanding of the world the kind of the first person perspective when I actually modern science has already sold on that you know quantum mechanics has shown unambiguously that the Observer is always involved in the observation likewise yodel's incompleteness ethereums to me a show that how essential is the Observer of the mathematical theory for one thing that's the one who chooses the axioms and we can talk about this in more detail likewise Einstein's relativity where time is relative to The Observer for instance that's brilliant you're just describing all of these different scales The Observer what they Observer science so we signs of 19th century had the from Modern perspective and I don't want to offend anybody I had the delusion that somehow you could analyze the world being completely detached from it we now know after the The Landmark achievements of the first half of the 20th century that this is nonsense that is simply not true and this has been experimentally proved time and time again so to me I'm thinking maybe it's a hint that I should take my first person perspective seriously as well and not just rely on kind of objective phenomena things that can be proved in a in a in a traditional sort of objective Way by setting up an experiment that can be repeated many times maybe I fall in love in a party you know the deepest love my of my life Perhaps Perhaps hasn't happened yet Perhaps I will fall in love and this but it's Unique it's a unique event you can't reproduce it necessarily you see so so in that sense you see how these things are closely connected I think that if you if we are declaring from the outset that all there is to life is you know computation in the form of neural networks or something like this however sophisticated they might be I think we are from the outside denying to ourselves the possibility that yes there is the side of me which is not faking it yes there is a side of me which cannot be captured by Logic and reason and you know what another great scientist said bless Pascal he said the heart has its reasons of which the reason knows nothing and then he also said the last step of reason is to grasp that there are infinitely many things Beyond Reason how interesting this was not a theologian this was not a priest this was not a spiritual Guru um it was a hardcore scientist who actually developed I think one of the very first calculators how interesting that this guy also was able to uh impart on us that wisdom now you can always say that's not the case but why should we from the outset exclude this possibility that there is something to what he was saying that is my question I'm not taking sides um what I'm trying to do is to shake a little bit the debate because most mathematicians that I know and computer scientists even more so they're kind of already sold on this um we are just you know reminds me of this famous Lord kelvin's quote from the end of 19th century there's some debate whether he actually said that but never let a good story you know he said physics is basically finished yeah All That Remains is more more precise measurement so I find a lot of my colleagues are happy to say yeah everything's finished we already got we got it we got it uh maybe little tweaks in uh in the in our large language models you know so now here's my question I'm kind of Playing devil's advocate a little bit because I don't see the other side represented that much and I'm saying okay could it be also that if you believe in that that becomes your reality that you can kind of put yourself in a box where everything is competition and then you start seeing things as as being such it's confirmation bias if you will you know this also reminds me you know I think a good analogy is it's a friend of mine uh Philip caution told me that in France there is this literary movement which is called ulipo o u l uh IPO and it's a bunch of writers and mathematicians who create works of literature where in which they basically impose certain constraints a good example of this is a novel which is called the void or disappearance by a writer named George pereck which is a 300 page novel in French with no no which never uses the letter e which is the most used widely used letter of the French language so in other words he said these parameters for himself I'm going to write a book where I don't use this letter which is a great you know it's a great experiment and I upload it but that's what it's one thing to do that and to kind of show his gamesmanship if you will and and his proclivity and his ability as a writer but it's another thing if at the end of writing this book when you finish the book he would say letter e actually doesn't exist and try to convince us that in fact French French language does not have that letter simply because he was able to go so far without using it you see so self-imposed limitation that's how I see it and I wonder why we should do that do we really need do we really feel the urge to say the world is like that the world can be explained this way or that way and I'm saying it you know it's a personal question for me because I am addicted to knowledge myself I you know hi my name is Edward and I'm an English addict okay I'm being serious I'm not being facetious up until very recently maybe a couple years ago I simply did not feel comfortable if I could not say the given answer explanation it's like oh there has to be some explanation and I try to frantically search for it just for somebody like me I know heard you know a left Brainiac and uh you know that's kind of typical typical for a scientists for mathematician it is incredibly hard just to allow the possibility that it's a mystery and not to feel the urge to get the answer it is incredibly hard but it's possible and it is liberating it's recovering is recovering addict to knowledge let me say what you gain from it for instance I understand the value of paradoxes I I appreciate paradoxes more and you know to to use another philosopher uh Soren kirkegar the Danish philosopher said uh I think or without Paradox is like a lover without passion a paltry mediocrity what's a good line all right so and you know Niels Bohr Niels Bohr said um in similar Vein The Great uh Danish also something about that something about Danes I think it all started with scramble it you know he said the opposite of a simple truth is a falsity but the opposite of a great truth is another great truth in other words things are not black and white you know they are not and I would even venture to say the most interesting the interesting things in life are like that the ones which are ambiguous it's an electron a particle or a wave it depends how you set up an experiment it will reveal itself as this or that depending on how you set up an experiment this bottle if you project it down onto the table you will see more or less a square it will project it onto wall you will see a different shape a naive question would be is it this or that because we understand that it's neither but both projections reveal something the real different sides of it a paradox is like that it's only paradoxical um if we if we are confined in a particular Vision if we are wedded to a particular point of view it's a Harbinger if you will of a possibility of seeing things uh in a more in in a as they are as a more sophisticated than we thought before you see this is such a difficult idea for science to Grapple with that you know I don't know how there's so many ways to describe this but you could say maybe that the subjective experience of the world from an observer is actually fundamental but we know that our best physical theories tell us that unambiguously in quantum mechanics actually you know Heisenberg I think captured it the best when he said what we observe is not reality itself but reality subjected to our method of questioning um when I talk about uh electrons for instance so that there is a very specific way in which you in which this is realized there is a so-called double slit experiment right so um for those who don't know it's you you have a you have a screen and and you have an emitter from which you send you kind of shoot electrons and in between you put another screen which has two vertical slits parallel to each other if we were shooting you know tennis balls each ball would go through one slit or another and then hit the screen behind this or that slit so you would have let's say they colored they painted so they'll be sort of bumps or or or spots of paint behind this or that but that's not what happens when we shoot electrons we see an interference pattern as if we were actually sending a wave so that each electron it seems like the each electron goes through both slits at once and then and then has the audacity to interfere with it with itself where at some points you know two crests would amplify and at some points aggress in the draft would cancel each other yet so that suggests okay so no electron is a wave not so fast because if you put a detector behind one of the slits and you say I'm going to I'm going to capture you I am going to find out which lid you went through the pattern will change and it will look like the particles so that's a very concrete realization of the idea that depending on how we set up an experiment we will see different results and the problem the problem is that our psyche I feel kind of lagging is lagging behind in part because maybe our scientists are not doing such a great job so I take responsibility for this that why haven't I explained this properly you know I I tried you know in a bunch of talks and so on so now I'm talking about this again our psychic kind of lagging behind we're still even though our science has progressed so much from the certainty and the determinism and and all of that of the 19th century our psyche is somehow still attached to those ideas the ideas of causality of this naive determinism that that the war the world has a bunch of billiard balls hitching each other driven by some blind forces you know that's not at all like this and we've known this for over for well for about 100 years at least you know and you call this self-imposed limitation it is a self-imposed limitation when we when we pretend that uh that for instance that this naive ideas of 19th century um physics are still valid and and then start applying them to our lives and then also derive conclusions from it and for instance people say there is no free will why or because the world is just a bunch of uh billiard balls where is the free will but excuse me didn't you get the memo that this has been debunked thoroughly by the so-called quantum mechanics which is our best scientific theory this is not some some kind of bullshit or some kind of you know concoction of of a of a Madman this is our scientific theory which has been confirmed by experiment so we should pay attention to that so but of course it's not just um self-imposed limitation unfortunately in this case there is a big issue of Education so a lot of people are not aware of it through no fault of their own because they were never properly taught that because our system is broken education system is broken especially in math and then our so where do we get them do you get information you get information from our scientists who actually write popular books and so on which is a great you know um great thing that they do but a lot of scientists somehow um when it comes to explaining the laws of physics they are doing a fantastic job um talking about this phenomenon for instance double slit experiments and things like that but then you know interviewed by science managers in about three wheel and so on they revert back to 19 19th century physics as if those developments actually never happened so to me this is single most important sort of issue in our Popular Science the idea that somehow there is this world out there but it's complete has nothing to do with me so I can I can reveal in the intricacies of this particles and their interactions but but completely ignore what implications this has for my own relationship to the physical reality to my own life you know because it's kind of scary I guess you know but also what are the tools with which we can talk about the Observer the subjective view in reality what are the tools of which we could talk about rigorously talk about Free Will and Consciousness what are the tools of mathematics that allow that I don't think we have those tools because we haven't been taught properly so actually tools are there for instance um I think well here we have to I have to say my conviction is that everybody knows in the heart of hearts everybody knows that there is that there is something in our football there is something mysterious and in fact you know somehow immediately I feel that um you know the impulse to quote somebody on this because as if as if my own opinion doesn't occur there's a long dead expert that has when Einstein said that he doesn't like how see look at me I am supposed to do like this smart intelligent person I am afraid to say it and own it myself I have to find a confirmation I have to find an authority who agrees with me and in fact it's not so difficult to find because Albert Einstein literally said the most important thing in life is the mysterious okay he actually said that there are some quotes which are attributed to him which he never said but this he did I investigated okay so but more importantly you know how do you feel about it um I think that everybody knows but in other words he also said Einstein imagination is more important than knowledge okay and explain for knowledge is always limited whereas the imagination Embraces the entire world giving birth to Evolution it is uh strictly speaking a real factor in scientific research he says and he says I am enough of an artist to follow my intuition and Imagination that's Albert Einstein again so and I feel the same way to be honest if I think about my own mathematical research it's never linear it's never like give me more data give me more data give me more data Boom the glass is full and then I come up with a discovery no it's always it always is always felt as a jump as a leap and I I have actually been studying various examples in a history of mathematics of some fundamental discoveries like Discovery complex numbers like square root of negative one I wonder if a large language model could actually ever come up with the idea that square root square root of negative one is something that is essential or meaningful because if all the information that you get the all the knowledge that had been accumulated up to that point tells you that you cannot have a square root of a negative number why because if you had such a square root we know that if then we would have to if you square it you get a negative number but we know that if you square any real number positive or negative you will always get a positive number so Checkmate you know it's over square root of negative one doesn't exist yet we know that these numbers make sense they're called complex numbers and in fact quantum mechanics is based on complex numbers they are in essential and indispensable for quantum mechanics could one discover that so to me that sounds like I discontinue it in the process of discovery it's a jump It's a departure it is like a child who is experimenting it's like a child who says I'm not afraid to be an idiot everybody says the adults are saying square root of negative number doesn't exist but guess what I'm going to accept it and I'm going to play with it and I'm going to see what happens this is literally how they were discovered there was an Italian mathematician astronomer astrologer he was he he made money apparently by compiling astrological sort of readings for for the elite you know of his ears this is 16th century everyone does example all around interesting guy I'm sure we would have an interesting conversation with him gerolamo cardano he's all he also invented the what's called cardan shaft so which is an essential component of of a car we say in Russian so so he wrote a book which is called uh our ass Magna which is a great art of algebra and he was writing solutions for the cubic and quartic equations this is something that is familiar because it's cool we study Solutions of quadratic equations equations of degree two so you have x a x squared plus BX plus C equals zero and there is a Formula which solves it using radicals using square roots and cardano was trying to find a similar formula for the cubic and quadratic equations for which which would start with x cubed or x to the power 4 as opposed to x squared and in the process of solving these equations it came up with square root of a negative number specifically square root of -17 and he wrote that I have to forego some mental tortures to deal with it but I am going to accept it and see what happens and in fact at the end of the four at the end of the calculation this this this weird numbers got canceled it kind of canceled out in the formula appeared square root of negative 17 and its negation so they kind of conveniently gave the right answer which is not involve those numbers so he was like okay what does it mean mental tortures so you see from the point of view over of the of the thinking mind it is something almost unbearable it's almost I feel that a large language more the computer running a large language model trying to do that would just explode and yeah the human mathematician was able to find the courage and inspiration to say you know what what is wrong why why are we so adamant that these things don't exist that's just our past knowledge based on what our past knowledges and knowledge is limited what if we make the next step today for us mathematicians context numbers that we call them are not at all mysterious the idea is simply that you plot real numbers that is to say all the whole numbers like 0 1 and so on to and so on right all fractions like one half or three halves or four over three but then also numbers like square root of two or Pi we plot them as points on the real line so we draw this is a this is one of the kind of perennial Concepts even in a in our very poor math curriculum at school but now imagine that instead of one line you have a pla you have a one axis you have a second access and so you numbers now have two coordinates X and Y and you associate to this point with coordinates X and Y and the number X which is a real number plus y times square root of negative one this is a graphical geometrical representation of complex numbers which is not mysterious at all now it took another two or three hundred years for mathematicians to figure that out but initially it looked like a completely crazy idea you know so all it is all a complex number is it's just an experience the real part and the imaginary part it's just an expansion of your view of the mathematical world the fact that you can actually multi you can add them up by adding um together the real parts and imagining parts that's easy but there is also formula for the product for the multiplication which uses the fact that square root of minus 1 squared is minus one and the amazing thing is that that that product that multiplication satisfies the same rules the same properties that are usual operation of multiplication for real numbers for instance there is an inverse for every non-zero number that you can find like number five has an inverse one over five but uh OnePlus I also has an inverse for instance you know that was always there in the mathematical universe but we humans didn't know it and here comes along this guy who engages in the mental torture who takes a leap off the cliff of comfort of like mathematical established knowledge established knowledge right and now obviously for each each um sort of fruitful leap like that there probably were thousands of like things which went nowhere I'm not saying that every Leap you know it's like it's a it's a it's a open shooting game yeah because for example you can try to do the same with three-dimensional space so you have coordinates x y and z and you can say oh uh if there's one dimensional we have an abonified numerical system called real numbers if it's two-dimensional which is like you know geometrically it's just like the stable top extended to Infinity in all directions these are complex numbers and we can Define addition and multiplication and they will satisfy the same properties as real numbers that we're used to wha
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