Sean Carroll seems to me to be one of the best popularizers of physics, cosmology and philosophy. He is aware of what is difficult and takes the time to explain it.
Sean is so much more refreshing to listen to than Neil degrasse Tyson. He's humble and doesn't have that heir of self-aggrandizement. He simply wants to teach and he is clearly passionate about education.
Revelations - _The Missing Page_ Lo - the five horsemen of the Apocalypse managed at last to ride out together: Pestilence, War, Death, Famine and Rape. Rape was looking particularly pale and peaky. 'Are you all up for this?' boomed Death. War muttered that he was very busy in the middle east and world capitals right now and could hardly spare the time. Pestilence pleaded that he was busy creating a new ebola-like plague in California. Famine said it was not very convenient as it was time for his non-lunch break. Rape just rolled up his eyes and fell off his horse...
A couple things about Sean Carroll. First, he has given the game away. What is the purpose of the multiverse argument? Certainly not legitimate science. No it is an admission that the fine tuning argument is devastating. There is no answer to it but absurdity. The multiverse must be infinite to have any traction as a reason for our universe or else it to had a beginning without a cause and only limited possibilities for what is possible. And once it is infinite, then there is no universe that is off the table of possibilities including an infinite number that are very similar to ours. So there are two headed cows and an infinite number of Judeo/Christian Gods or whatever else one can think of. Second, Sean Carroll is not a nice person. We tend to get persuaded by appearances. We should pay more attention to behavior. I posted a comment about Carroll almost 3 years ago which shocked Sal Cordova who was defending him as a reasonable person. Here is my comment from then: Sean Carroll is intellectually dishonest, a bully and a coward. A few years ago there was a discussion by John McWhorter with Michael Behe on Blogging heads. Carroll went ballistic and essentially told Blogging Heads he would organize a boycott of the site if they ever did anything like it again. McWhorter was forced to apologize for talking with Behe. Carroll is one of those guys who hides behind a nice smile and polite personality but will use his minions to silence anything he is opposed to. Remind you of anyone else in this world? I am very familiar with Carroll, having purchased his course from the Teaching Company on Dark Matter and Dark Energy and bought his book on the nature of time. He is a pleasant lecturer but his other behavior indicates what he is really like.
Agreed - his talks are very approachable. The Royal Institution and Darwin Lectures talks are equally good. The RI talk is from 2020 (this year as I type) and he starts talking about ideas on unification at the end - and it seems maybe plausible!
@@StrawberrySoul77 Unification of quantum and gravity stuff. At the end just meant towards the end of the video, as opposed to the end of the Universe etc.
Sean Carroll does a great job of showing that particle physics is not incompatible but rather implies the possibility of human scale concepts, such as cause and effect, human thought, and morality. To the best of my knowledge the first person to do that magnificently was David Deutsch. I therefore recommend his books too.
@@markanthonyk1504 Well aren't you the complete fucking moron! Of course he's a doctor. Carroll received his Ph.D. in astronomy in 1993 from Harvard University.
Jebuscristo if your a future physicist, don't have a role model per se. Go in thinking that you are just going to be yourself and do your own thing and not emulate anybody. We need physicists that think independently and differently than other physicist so we can advance. Be you and maybe you will be the next Einstein or Witten.
You have religious belief, I don't. = Freedom From Religion (or so the adherent to their religious belief states). This position is indefensible in the light of religious congress. Opting out with "Continuing the discussion, I don't have any answers" is the coward departing the battlefield before the war has begun.
Sean's book by the same title is, in my opinion, a major step forward for Atheism in the modern world. Atheism and Naturalism have always been challenged by the fact that our "theology" is in many ways trapped inside dense scientific literature. Sean explains our scientifically constructed picture of reality in an approachable way and synthesizes it with our 21st century morals. Poetic Naturalism is the future.
Uhmu Unfortunately the presenter keeps talking about the slide ... they are meant to be viewed with the explanations. LOL regarding the lawsuit remark. I guess that rules out a split screen view with the presenter in a small section of the screen and the presentation visible all the time. I get it, Google is a small start-up company, nobody could expect such cutting edge technology.
In fairness to google, if they still were a small start up, the split screen solution would have been implemented ages ago within a week. From their point of view, we are just entitled brats complaining about an excellent free public service xD
+Uhmu it's been like this for years. Apparently nobody cares, or their goal is to make the talks unwatchable. I'm really surprised that they allow comments and ratings now ... who knows, they might listen to feedback next. Btw: look for "poetic naturalism" ... a much better version of this talk, recorded at Oxford a couple of years ago. EDIT: I mean better in terms of editing ... the content itself is a little bit better here, Sean added a few bits since the early versions.
that last line though! "Space is just a good approximation of a low energy state." I'm going to be thinking of that and running thought experiments all week
So many thought provoking points I needed to stop and rewind and rewatch many times to understand what he meant. I'll have to revisit what he said many more times and look into his other lectures!
Same with me, Daniel. :-) But, coming to that conclusion makes me happy, makes me feel good about myself, as I find that I'm capable of suppressing my ego to an extend, that allows me to learn further. And that's great fun :-))And, as I'm not the only one of that species, that makes me feel even happier. Sean Carrol, the Happy-Maker :-))))
Modern physics cannot define space, time, mass, charge etc., yet mathematics enables us to figure out the puzzles of QM, GR, emergent and complexity etc., and enables us to 'understand the mind of the Intelligent Designer who invented Mathematics'.
Sure buddy, at least the last century modern physics cannot explain reality in a satisfactory manner according to you, but you KNOW that your imaginary friend did it all, without anyone creating him, and withou leaving any trace of his involvement or his supposed ultimate knowledge? hahaha publish it and earn several Nobel prizes, but that's not going to happen anytime soon, is it?
Naimul Haq Modern physics can't "define" our reasons for being here (nor explain our presumption that there needs to be one) so I'll invent a sky fairy and be fine with that answer. My neighbor's 4-year-old daughter believes in fairies too.
Daniel Brown The reason for us to be here is proved, verified and observed. The Standard Model proves how fine tuning of the parameter space, created the self-organizing property of matter, which in turn delivered life and consciousness, although we do not know how FT occurred. Consciousness can take our thoughts outside our universe, like ID, and the neighbor's 4-year-old daughter. Hope you are a science guy.
Sir, at 17:06 you showed us an equation that does not have purposes, causes, meanings, judgments. How would an equation look like that has purposes etc. Can you give us an example? Thanks
There is a theory that our essence or "consciousness" comes from outside our physical reality with our brain acting as an antenna of sorts. When you die the receiver no longer works but the source of your ( self, animas, soul, consciousness etc) continues.
Sean, - I have a thousand questions to your talk - any one of which no doubt would generate at least a thousand more ! ! ! But YOU DID answer one I have had for some time, - " Just what or why is it that philosophers and physicists are just never able to ever get along " ??? Sean I think that you pretty much spell-that-out as well as anyone I have heard in twenty years ! Physics and Philosophy just strike me as one on-going hellacious marriage; But the sex is just so great ! A truly fantastic talk 👍
Philosophy is bullshit since 500BC. You can easily see this in the fact that most major Greek philosophers seem to have thought that slavery was natural.
Well said in a real layman's terms. I now understand more clearly this world and the nature of the universe than to the other speakers and physicists. Thanks for this upload.
Interesting stuff here. This man is more of a contemporary philosopher for intellectuals which is what we call a "Physicist". Primarily because he's informing individuals & shifting their fundamental axiomatic presuppositions which their interpretive framework rests its fundamental perceptions. Essentially he's causing a paradigm shift & altering the framework by which people perceive the world subconsciously. Interesting stuff. Much much different than what you would get from say Jordan Peterson or Joe rogan or Jocko willink , Dave Ruben , Etc...
Yes, he wields much power as he becomes better known and influential. Hopefully, it is for the benefit for us and our realm as the ones who’ve controlled the paradigms of late are insane and controlling and mean. Speaking to employees at Google makes me question what side he’s on.
This talk given here and at the Royal Institute are the best physics lectures given in recent times, Feyman would be so damn proud of this man. Talk about big picture vision!!
I didn't understand that point, although it feels really important to have some basic grasp of it. Can someone link to (or provide) a good explanation please, and why he and others routinely describe the universe as made of particles? It seems crazy that most people with a lay understanding of physics either think it's all particles or wave-particle duality, and they're both wrong.
lettersquash In a sense it's both. He described perfectly well in another lecture where he talked about how the universe and everything in it is really made of FIELDS. Fields are constantly fluctuating, creating waves, waves are comprised of crests and troughs. We call the crests, "particles." In other words, saying that the universe is made of particles is kind of like saying the ocean is made of droplets, which in a sense is true, but describing the ocean in terms of waves and fields make a lot more sense.
LIQUIDSNAKEz28 uh - no. Something has to happen before the 'crests and troughs' render into what we recognise as matter. What comprises a droplet of water is the same 'stuff' that constitutes an ocean. Not true with with the wave function of a particle. Prior to collapse, the particle simply cannot be said to exist.
Amazing talk! Cannot wait to pick up your new book. Particle at the end of the universe was such a great read and this talk has me pumped to run to the bookstore and grab it asap haha Q&A at the end was really interesting.
Enjoyable lecture. I wish our educational system did a better job of matching students and teachers together based on what they are passionate and interested in at all levels of school
Sean Caroll is great and I wish I were half as clear and to the point as him. Giraffes do not have long necks to be able to reach 'those leaves' though as the majority of their norishment do not come from leaves of tall trees. They have long necks because of their combat techniques called 'necking'.
I'm currently running an experiment that aims at proving entropy can lower spontaneously. The experiment might not run for the time I intended because people have started bugging me really hard to tidy up.
*Very good explanation, I think consciousness should be added here, how 5 sense organs combine to produce consciousness to survive from Predators, and how humans after ensuring survival developed intelligence*
Regarding the initial story about the 2003 law case against Lucia the Berk; there is no jury system in Dutch law cases as Sean Carroll suggested. A single judge decides in the Netherlands whether to convict the suspect or not. In this case the innocent woman was in prison for 6 and a half years, before finally pleaded innocent.
He withholds one thing: Since the discovery of quantum mechanics we know that one cannot know in principle the whole future of the universe, even if we know the present exactly and have infinate computing power. What we may know is just the probability distribution, all myriads of possible configurations that could became realized. So it can't be ruled out that some nonphysical force (a force not in the physical sense) is able to influence the development of the physical world, perfectly in accordance with the equations. Similary if information is conveyed to and stored in some non-physical entity, the equations are not violated. If you are playing a video game and then switch off the computer, you still remember what you have done in the game, although the software that makes it up is not running anymore and it's not written in the ruleset (the code) how someone might be able to watch it. Some people like to sell it as scientifically proven, but the idea that our behaviour is totally determined by physical processes is, at the moment just a belief.
The first topic this speaker mentioned is that's how a human brain understands instances we can't think that a person is innocent then prove guilt the instance he mentioned at first is if babies die in a place ment to help and keep them alive someone is guilty and that's how we think and if we know someone has no children we automatically think that they are guilty we don't even think that they can't get pregnant for some reason, no we automatically think they hate children so that makes them guilty for the children's deaths. We forget about how good they are, our brain automatically thinks that they hate children enough to end another's life.
Most mind-blowing talk I've seen for a long time! But left me with lots of questions. How is entropy very low just after the big bang, when presumably everything was much the same? It's a curious instance of "highly ordered", surely? Also, his putting simple-complex as a different continuum from low-high entropy is a different explanation from the usual (e.g. on wikipedia) where the complex (like life) is acknowledged as being more ordered, and low entropy, compensated for by increased entropy elsewhere in the system to satisfy 2nd Law of Thermodynamics. So when stars formed from matter attracted together by gravity, was this increasing entropy in the universe combined with increasing "complexity"? How can stars and planets represent less "order" / more "randomness" than a previous state, say, when matter was mostly evenly spread out, just with slight density variations?
This is not a problem either.. Entropy doesn't 'break down' creating life or even seemingly ordered systems like the Earth or Solar System. Taken as a whole - inside the system (which is the universe) everything IS tending toward disorder, but there can be regions of lower entropy within it that still eventually tend toward chaos (ultimate entropy - heat death of the universe). It's overall.. don't consider little tiny regions as a decrease in entropy. Think of balls mixing in a box, maybe you might get a point when they all end up in the corner briefly, but they're still all mixing overall.
Yeah I understand that, Tom - that's what I referred to as "low entropy compensated for by increased entropy elsewhere in the system". Yes, these still tend towards chaos, as you say (additionally, the theory goes - at wikipedia, etc. - that these regions of lower entropy only exist temporarily because they simultaneously coexist with complementary regions of increased entropy. Usually, high and low entropy are described as less and more ordered. However, one of my points was that Carroll didn't say this, he said that low-high-entropy is a different continuum from less-more-order, and that order increases then decreases while entropy just keeps increasing (I think). My other question was more fundamental (i.e. dumb, maybe!) - why is the condition just after the big bang thought of as very low entropy, as I assume it must be according to the theory of increasing entropy? If you have one type of stuff with perhaps random minute variations of density or whatever, it's kind of odd to call that 'highly ordered'. Maybe it's a semantic issue and the maths would pronounce the singularity the most ordered thing, while colloquially we resist the idea of calling something that's all one thing 'highly ordered'. We might ask 'How can you order oneness?', when the maths just says it can't not be. Similarly, most of us would naturally call the state just after the BB pretty 'chaotic'. But you've made me wonder about another fundamental question - how much the idea of increasing entropy is mere conjecture when considering the universe. Possibly measurable in lab conditions, I find it hard to believe anyone can say how ordered the whole of the universe was before the stars formed compared with after, particularly considering the fact that we've only just woken up to the possibility that most of the thing has been hidden from view - dark matter and energy. So much to learn about, so little time.
lettersquash Good points. Well, every time I think I have an insight because what I'm being told seems counter intuitive, the more I look into it, the more the maths begins to get too dense and I have to trust that a physicist knows what he is talking about. Entropy is a good example - they say the entire arrow of time is dependant on the fact that chaos increases, despite pockets within the system where it tends to decrease (before eventually increasing). Supposedly, the way I understand it, because everything was squashed into a very small point at the beginning of the universe, it took on characteristics of say, a crystal, a very ordered collection of atoms (think carbon within a diamond). Everything was fundamental (ie no atoms, everything was a force or particle because it was too hot and dense at that point) before inflation/expansion allowed them - but at that very early point, it was incredibly ordered. Quantum fluctuations were blown up to macroscopic scales allowing gravity variations and eventually stars and galaxies to form. But the initial conditions were as ordered as can be.
No one knows why it was low entropy at the beginning that's the big question.Why is there a universe? We're beginning to grapple with what the universe is but as to what brought it about?......fuck knows man.
If I understand your question correct you are not asking why the entropy was low but why physicists says the entropy was low. If so, then answers has to do with how entropy is defined in physics. Entropy is defined as the number of possible state a system can be in, not what state it is in. In the big bang this number was 1 or close to it. The limitation of possibilities is what is considered to be "more ordered", and that makes one possible state the highest ordered state. The reason the entropy is seen as being increasing is because the universe is said to be expanding, i.e. performing work.
I have detected a definite pattern in the Universe Sean: although you have started verbally acknowledging glossing over the difference between and proton and an anti proton, you never change the slide.
how does the new form of light which interacts with electrons differently (statically orbiting) affect Sean Carroll's assertion that we've discovered all the particles of everyday life we're going to discover?
The real lesson here is that while the over all entropy of the universe steadily increases, the overall entropy of physicists hairdoos decreases over time.
Without acknowledging Halton Arp's work on redshift, almost everything you hear from modern cosmologists is going to be deeply flawed. When redshift is properly modeled, our universe looks VASTLY different than what we've been led to believe. It wouldn't affect the masses but any casual student of Astronomy would feel utterly betrayed.
There would have to be massive amounts of peer work done on Arp's theories before any conclusions about the validity of his challenges. Do you believe that there is some type of conspiracy to keep Arp's Redshift theory in the dark? I think Arp has many interesting ideas and it's too bad that he's not around to discuss them anymore but why do you choose to believe his redshift theory over Hubble's Law or any other standard. Does science not look for the best solution?
I'm reading The Big Picture (the spanish translation. My english isn't good enough to read the original) and I want to ask a question. Carroll writes that dark matter / energy don't have any influence upon the basic properties of atoms and the physical laws that describe them, although this dark matter / energy represents more than 75% of the entire matter and energy in our visible Universe. However, He writes in other section of the book that any supposed non physical feature of the reality should exert some influence on the behavior of atoms. Can anyone explain me this apparent contradicition? P.S.: I'm sorry for my bad english.
It seems to me that time travel is impossible for one simple reason. Time is not a stand alone concept. Space-time is the problem. If you could find a way to move through time, you would also need to calculate space. For instance, if I wanted to travel back only a year, I'd have to calculate EXACTLY where the Earth was one year ago, else I could end up a year in the past, but somewhere in the vacuum of space. Since we don't know the whole of the universe, we can't calculate the speed at which anything within it is moving, or predict where any object in it will be at any given time. There is no anchor in the universe with which we could use to make any calculations. IMO
Sean Carroll and Lawrence Krauss are just the best. Gottainclude Alan Guth ... er can't leave out Susskind or; Sussybaby (you had to be there) as well as Dr Sheldon cooper.
Can we use time dilation to live or see the future that we not able to see in this life time (using that one man from this generation can go in 1 Jan 2500 WHAT ARE PRACTICAL DIFFICULTY?
It is weird that without any knowledge I got to the same result, as the core of our questioning has to be entropy and space-time. With my Winnie the Pooh approach all is information, even God if existed and entropy will make him insane by some circle clock time. So those (non existing) entities has to go through on purgatory (this place) in order to revive themselves, cutting back on entropy. 13 level of consciousness zip-ped in by the main chakras and unzipped. About time, I sense it was 3+1 dimensional and space is low energy= frozen time. ... By the way, I don't think that particles can be influenced by other particles only. It sounds like a caveman wouldn't believe in magnetic field, for he can't touch it. There has to be a such a jump there as quantum mechanic was over classical physics. ... I love the way he explains things! Good job!
Very clear and to the point. However I think that some deep issues are more open to question than what Sean thinks. This deep issues are metaphysical in nature, like it or not. He takes a valid position, but that position is not the only valid metaphysical position. Why think that the physical laws describe pattern "laws" and not simply describe the way that a particle behaves? But is not a law, a constrain inherent in Nature. In this view, the "randomness" in QM is a consequence of the lack of constrains. Im not telling that a particle could do anything, but that a particle could do anything inside his/her :D decision space (degrees of freedom). Another deep difference in view is that Nature is not "made of things" but of process. This view is not in contradiction of Sean insight, because Time in some sense is fundamental, but not space. Nature consist of a co evolution between its components, this ecosystem evolves his "laws", so these are not real laws. The only real laws are the laws of the logic behind this. See Whitehead work for the best philosophic work in the last century.
N Marbletoe I can only see how we could see a list to do a good one is for sale for Australia to do a good one is for sale for Australia to do a good one is for sale for Australia to do a good one is
Great talk! but the example of file size for computer people didn't just click. Anyone listening to you have some basic interest in physics and science in general, therefore, they know a bit too, so that's fine not giving examples from the domain you are not much aware of.
So I'm watching a talk from Sean Carroll @ Google and @ 28:00 I'm like "Ekinological, WTF!" so I Google it and the first result is a link to this very lecture...WHAT DOES IT MEAN ?!?!?!
Sean Carroll is awesome ... but one critical comment here - it you believe that consciousness is "more than what it is those equations" then you DON'T have to explain that the equation is wrong, as he asserts ... you simply are stating that those equations scope is limited. The equations are right, just as Sean would say that Einstein's Field Equations are right, but don't have the SCOPE to explain quantum mechanics, which is also correct. Sean is very humble in all his videos, which makes him and his genius easier to respect.
Hmm ... he seems to believe that the Quantum State is somehow more fundamental than the reality we experience ... when the whole of math and quantum mechanics is nothing more than a "simple" (relative to reality's complexity) tool to help us describe reality in a way that allows us to reason about it as a whole. If humans didn't have limits to their cognitive abilities, we wouldn't need math. But we have to make whatever we can simple enough to understand.
Time and space are the same thing, except that there is a factor of "i" - Minkowski in 1913 showed us we can think of time as another space axis, albeit in an imaginary direction (imaginary as in the square root of -1). Lightspeed is a conversion factor between time and space. I recall Roger Penrose pointing out that Quantum Mechanics cannot yet reconcile this consequence of relativity theory. We don't live in momentum space ... we live in regular space!
You know, I used to feel the same way about origins and meanings... then I read that the meaning of 'life' is adaptability... which, as it turns out, is exactly what the dictionary says it means. So the answer to what is the meaning of life, is in the f*ing dictionary! For the answers to the other two questions, I have no problem with the information on those two subjects that is contained in The Urantia Book. Life began when a Life Carrier brought the blueprint for life to our planet when it was sufficiently briny. He assembled the atoms and molecules into a single celled organism and our Goddess activated it with the "breath of life". some 550,000,000 years ago. The origin of the universe is more complicated than that. This book describes Paradise Creator Sons and Creative Spirits, who each get to make and run their own individual universes, ours is Nebadon. In addition is discusses the celestial hierarchy, from the Central Isle of Paradise, thru the perfect Central Universe of Havona, (which is excluded from our vision by massive gravity bodies), thru our local universe. And then what the role of humans is in this whole set up.
God is only the product of human mind. Human minds works via human brains which works according to biology, which govern by chemistry which explained by particle physics (standard model, quantum mechanics, QFT, QED, QFD, QCD etc) which was incorporated into the equation at 17:05. So in an indirect way god was discussed, you just didn't listen carefuly enough.
My point is that the word 'God' was not mentioned even once.You can listen it again..but yes you can argue that it was hinted indirectly...really indirectly?
You have to know that, whatever you agree or not, but for modern, science god is an irrelevant concept. As we get to know more and more about the nature it seems god was only a placeholder (god of gaps) of the unknown or unexplained things throughout history. As our explanations covers basicly almost every phenomenas there is little to no place left for a god to intervene. No remaining possible mechanics of intervention means no interaction with the physical world, no interactions means it may as well be nonexistent by definition (not part of the (physical world). Since, we are not dealing with non-physical exclusively conceptual worlds, one can safely say god is irrelevant from a scientific perspective. (and I have to say I don't use other prospectives)
Well true to some extent...but I think that as long as the first cause argument exists and is not solved by scientists completely (What stuff made the universe, virtual particles etc..whatever other theories that are around), god is relevant to the debate..on a lighter note word 'phenomena' itself is plural of 'phenomenon'
Postulating god as a first cause does not help at all. God is not well defined, but it has to be a very complicated being. Plus, god is just one arbitrary solution to the first cause puzzle. The universe could very well be eternal, with no first cause. Or it could be cyclic. The goal of science is to make complicated things easier to understand. A creator god is not an easy thing, it would have to be very complex. And proposing such a being solves nothing, it just pushes the borders of our understanding one level up. Who made god? And if you say "god is eternal", why not come down one level and just say "the universe is eternal"?
Great talk BUT is he correct (at 48 mins) when he says "before modern medicine we lived 30-40 years? The ephors of sparta were only eligible for election at age 60 and the bible (it's not always wrong) suggests three score years and ten (i.e, 70) as a reasonable age so those ages must have been common (or at least not rare). Anybody out there know if we have really doubled our life expectancy?
i think what spartans could do to heal in this aspect counts as 'modern medicine'. his point is that without any technology whatsoever, humans as pure biological beings had a life expectancy of 30-40
The big missing piece in this argument is the same one we very often see missing in intellectual presentations : Nothing is said about our personal relations with the concepts used and the great differences in the meanings of the same concepts depending on who uses it and how and when and where ( conceptual relativity ). Instead there is this strange pretense that we have a pretty clear common idea of what we mean when we use the expression : "..." He uses several symbols expressed in language : "the world"..."atoms"..."quarks"..."electrons"..."nuclear force"..."neutrino"..."electro magnetism"..."photons"..."background higgs field"..."gravity"..."quantum mechanics"..."matter"..."spacetime"..."particle"..."cause and effect"..."description"... What he ignores is that all of these are only symbolic information expressions. The meaning we give to them are based on subjectively experienced reality. Like all information they are finite ways we interpret impressions from life and they are in fact understood differently by different people on different occations. They are informational interpretations of patterns we observe in events. They can all be replaced by an infinity of alternative interpretations. This is an incredibly important point to remember as long as all of this explaining by means of vague subjective concepts takes place right within the same moving reality where we are incapable of seeing whatever exists beyond our horizon of available data. This talk illustrates well a typical kind of "intellectual blindness" which is still very common in our modern age : The tendency to confuse the description ( as understood by the mind of the subject brain BEING USED BY this description ) with the reality beyond this description ( Invisible and unimaginable to the subject brain which acts on limited information ). Said in a different way : The tendency to interpret reality FROM INSIDE A CONCEPT without consideration of the larger and invisible event space beyond this event-of-conceptualization. Conceptual relativity is the big blindspot of academic intellectual thinking.
Please provide the specification for what an "event space" is. What are the rules for "event spaces"? And where does your idea of "event space" reveal itself in reality that is objectively identifiable?
Puzzles of Quantum Mechanics that remain not explainable are not the only puzzles, the absolute speed of light (General Relativity),says if you are moving with speed s and focus light out, it keeps traveling at the same speed c. As for the second law of thermodynamics, how it breaks down, producing entities like life with lower entropy are not fully understood. Lee Smolin did a good work explaining how plasma keep up their temperature to a high level for a long time, has newer explanations, explaining how the 2 nd law breaks down. On the whole we have a long road ahead and may never get the job of finding the mysteries that keep us occupied, finished before we are finished, by an asteroid, or a virus, or something.
Those are explained. 1. The absolute speed of light has nothing to do with light, it is the speed of causality. See PBS Spacetime on 'The speed of light have anything to do with light'. There is no paradox in light travelling at the same speed for all observers. 2. This is not a problem either.. Entropy doesn't 'break down' creating life or even seemingly ordered systems like the Earth or Solar System. Taken as a whole - inside the system (which is the universe) everything IS tending toward disorder, but there can be regions of lower entropy within it that still eventually tend toward chaos (ultimate entropy - heat death of the universe).
Tom Walter Science of the Standard Model shows how the fine tuning of the parameter space produce 'self-organizing property of matter', that delivered the universe, life and consciousness, with perfection and with probability one, eliminating randomness/chance, like winning 20-30 lotteries in a row (each with one in a million chance to win). If that does not imply intelligent design, I do not know what does. However, at the big bang, dark matter and dark energy were produced with opposite properties, followed by production of particles and anti-particles, followed by production of matter and anti-matter....and on to hot and cold, male and female, up and down etc., otherwise called the 'dual nature of the mathematical/physical world/existence'. The consciousness we possess, enabling our thoughts to travel outside the universe, is essentially different from what may be called the 'universal consciousness' which maybe non dual and if you can fancy 'eternal', which can invent the laws of mathematics, while we can only discover them. First referred to by Hegel, 200 years ago as the ubiquitous 'universal spirit', like his 'laws of dialectics', or better still, his law of the 'unity of opposites'. He even conjectured the 'evolution is a dialectical process'. Although he had no idea of anti-gravity or negative temperature, the power of his theory laid the foundation of modern science.
About the case of Lucia de Berk: We don't have a jury (to be convinced of guilty or not guilty) in the netherlands. That's up to the judge(s).to decide.
"3;37: 'Why were the people on the jury so easily swayed' Oops, he talks about a Dutch case, and we don't use a jury system here in the Netherlands. This has no significant bearing on his argumentation, but when an (in this case, very good) spaker makes such a factual mistake about a point I happen to know about, I always wonder how good his other facts are.
IS 'time' really a 'dimension'? If so... it seems to be a 'one-directional' '1-dimensional' phenomena (perhaps '½-dimensional'?). As far as we know - no 'entity' can 'travel' in a 'negative' time direction. The same is not true for the spatial dimensions. If time was '1-dimensional' - like a spatial dimension (a line) - you WOULD be able to 'travel' in both directions? ... a thought :D Great lecture!
How would you even know if you are moving backwards in time? Maybe every 10 seconds, you are living time backwards for 5 seconds. How would you know? To you it would seem like time is moving in only one direction. Forward.
1:01:13 "But again, the idea that things have points is not part of the fundamental nature of reality...this level of meaning and purpose and causality is a higher level emergent thing". Hmm. So is awareness of the 'fundamental nature of reality' independent from the fundamental state itself? If so, there's a contradiction.
Entropy is a requirement for an expanding universe. A static universe would have zero entropy. (Possibly a contracting universe would have a reversed entropy)
I wish google celebrated Christmas 🎄. Also I wish Sean Carrol would admit that he actually only has theories. He doesn't "know" anything, I mean: if we are going to be accurate and all.
That is my absolute most favorite piece of fiction in the world. So I also saw the correlation. Good call. It is also similar to my other favorite bit of fiction ever, another Asimov short story called "The Last Answer". I won't spoil anything, but hydrogenating carbon also reminded me of a few themes in that story.
Life doesn't reverse entropy -- it reduces it in one place by making it much higher in another place. The same can be said of the formation of ice, no life required.
Entropy can be reversed (and is getting reversed regularly) at small scales, even by chance. Its all a statistics game. Highly ordered states are just far less likely than chaotic ones, and so they will usually not come into being on their own. But given infinite time, our whole observable universe could just organise out of total chaos just by chance. Thats almost infinitely unlikely of course.
+Brian Twardzik Ok, so I've read Asimov's "Last Answer", but I never even heard of "The Last Question". So I looked it up and read it, and holy crap that was deep!!! Thanks so much for your comment, I don't think I ever would have stumbled across that one otherwise. For anyone else, go read it. It's a short story and will only take about 10 minutes to read. Well worth it!
The unexpected dangers of trusting in animal instinct looking for the risk in accepting the obvious "Big Picture"? Ie "living in denial" as if it were a principle of self control... (and it is when applied to one's own life, but phrase is usually a customized accusation directed away from the accuser) "It's all Quantum" is about as accurate as possible for simplicity, but outside that knowledge is the uncertainty of unfinished understanding. (The professor is an expert explainer) Ambivalence is wisdom derived from knowing the Quantum Mechanism, innate uncertainty. The "Arrow of Time" in conjunction with the BBT is an observation of Quantum Chemistry as it applies to the reiterative processes of living things.
Sean Carroll you say every point is the center of the expanding universe then when the universe is run backwards there are many points with a big bang starts from it depends on your perspective of how you looking at the expansion so the Big Bang did not come from a single point because everything is moving away from each other depending on where you're looking from so if you run the clock back there are multiple points of it receding so the Big Bang did not contracted to a single point it can track it to an infinite amount of points depending on which star you looking at as a center from the expansion
Sean Carroll seems to me to be one of the best popularizers of physics, cosmology and philosophy. He is aware of what is difficult and takes the time to explain it.
Sean is so much more refreshing to listen to than Neil degrasse Tyson. He's humble and doesn't have that heir of self-aggrandizement. He simply wants to teach and he is clearly passionate about education.
Agreed except for his uptalking intonation
Neil is into himself
Sean Carroll is a beacon of clarity and truth. Thank you good sir!
Revelations - _The Missing Page_
Lo - the five horsemen of the Apocalypse managed at last to ride out together: Pestilence, War, Death, Famine and Rape. Rape was looking particularly pale and peaky. 'Are you all up for this?' boomed Death. War muttered that he was very busy in the middle east and world capitals right now and could hardly spare the time. Pestilence pleaded that he was busy creating a new ebola-like plague in California. Famine said it was not very convenient as it was time for his non-lunch break. Rape just rolled up his eyes and fell off his horse...
Adam Mangler Its actually just a play on the four horsemen of new atheism, but nice poem!
Thanks - I thought you might appreciate it!
*_:0)_*
A couple things about Sean Carroll.
First, he has given the game away. What is the
purpose of the multiverse argument? Certainly not legitimate science. No
it is an admission that the fine tuning argument is devastating. There
is no answer to it but absurdity. The multiverse must be infinite to have any traction as a reason for our universe or else it to had a beginning without a cause and only limited possibilities for what is possible. And once it is
infinite, then there is no universe that is off the table of possibilities including an infinite number that are very similar to ours. So there are two headed cows and an infinite number of Judeo/Christian Gods or whatever else one can think of.
Second, Sean Carroll is not a nice person. We tend
to get persuaded by appearances. We should pay more attention to
behavior. I posted a comment about Carroll almost 3 years ago which
shocked Sal Cordova who was defending him as a reasonable person. Here
is my comment from then:
Sean Carroll is intellectually dishonest, a bully
and a coward. A few years ago there was a discussion by John McWhorter
with Michael Behe on Blogging heads. Carroll went ballistic and
essentially told Blogging Heads he would organize a boycott of the site
if they ever did anything like it again. McWhorter was forced to
apologize for talking with Behe.
Carroll is one of those guys who hides behind a nice smile and polite
personality but will use his minions to silence anything he is opposed
to. Remind you of anyone else in this world?
I am very familiar with Carroll, having purchased
his course from the Teaching Company on Dark Matter and Dark Energy and
bought his book on the nature of time. He is a pleasant lecturer but his
other behavior indicates what he is really like.
I'm currently compiling fiction. Can I buy the rights to your mails? You'll get a good price.
This is one of the best explanations I've ever heard for how the Universe works. It should be inserted into every high-school syllabus.
In particular, the distinction between low vs high entropy, on the one hand, and simple vs complex, on the other, was made clear.
Bifcake
I like this guy: he talks like a real human, without a lot of incomprehensible jargon !!
Agreed - his talks are very approachable. The Royal Institution and Darwin Lectures talks are equally good. The RI talk is from 2020 (this year as I type) and he starts talking about ideas on unification at the end - and it seems maybe plausible!
@@davidfell5496 what do you mean by unification at the end? Is it that the universe expands from a certain point, then collapses back to that point?
@@StrawberrySoul77 Unification of quantum and gravity stuff. At the end just meant towards the end of the video, as opposed to the end of the Universe etc.
An outstanding talk. Carroll is one of the best science communicators since Carl Sagan.
Sean Carroll does a great job of showing that particle physics is not incompatible but rather implies the possibility of human scale concepts, such as cause and effect, human thought, and morality. To the best of my knowledge the first person to do that magnificently was David Deutsch. I therefore recommend his books too.
I love listening to this man speak. He's clear and informative. Thank you Dr. Carroll.
Dr10Jeeps he’s not a doctor fool
@@markanthonyk1504 Well aren't you the complete fucking moron! Of course he's a doctor. Carroll received his Ph.D. in astronomy in 1993 from Harvard University.
The only lecturer/public speaker on RUclips who never says, 'um'. He is great.
RUclips comment sections: The only place where centuries of scientific progress are "refuted" by a few sentences.
star trek theory, gods priests have already reamed their holes..
Well stated, Brendon!
Please distinguish between "amoral" and "nonmoral."
And the only place where centuries of scientific progress refuted in a few sentences is refuted in but one sentence
wtf dude TL;DR
What a great talk!
Sean Carrol truly deserves sitting at Feynmans desk!
Amira Lozse: I beg to differ. Feynman was in a class of his own!
he is a great speaker
his voice irritates me
@@bobjones5869 aww. bless.
Sean Carroll is a brilliant physicist. As a future physicist he's my role model.
Jebuscristo if your a future physicist, don't have a role model per se. Go in thinking that you are just going to be yourself and do your own thing and not emulate anybody. We need physicists that think independently and differently than other physicist so we can advance. Be you and maybe you will be the next Einstein or Witten.
I will never have a chance of being a physicist and he's my role model.
You should call yourself an "aspiring physicist" in compliance with the Heisenberg uncertainty principle. Best of luck to you, though.
Once again, Sean Carroll delivers his thoughts with clarity in comprehensible terms making it accessible for many of us to grasp. Great ambassador!
You have religious belief, I don't. = Freedom From Religion (or so the adherent to their religious belief states). This position is indefensible in the light of religious congress. Opting out with "Continuing the discussion, I don't have any answers" is the coward departing the battlefield before the war has begun.
@@trustinjesus1119 wot
@@tisajokt7676 You have to be more specific.
@@trustinjesus1119 i wonder if anyone cares what you think.
I've heard a lot of great lectures...this is the best ever. Thank you.
Marvelous gifted speaker totally organized with vast knowledge in many fields.
I wanted to book that guy for my son's 6th birthday.
Thank you excellent lecture. I am reading Sean Carroll’s book now and I’m finding it exhilarating!
Sean's book by the same title is, in my opinion, a major step forward for Atheism in the modern world. Atheism and Naturalism have always been challenged by the fact that our "theology" is in many ways trapped inside dense scientific literature. Sean explains our scientifically constructed picture of reality in an approachable way and synthesizes it with our 21st century morals. Poetic Naturalism is the future.
He is a great communicator. Very clear and concise. I enjoyed this talk.
...the purpose of life ;) 34:44 and it's OK to say we do not know, science is awesome!
the purpose of life is to leave the place tidier than you found it.
@@HarryNicNicholas
No it isn't.
The usual problem with Google talks: they're edited so that the slides are always only visible for a nanosecond.
It is cost cutting measure because of the Oracle lawsuit, kind of annoying but you can always pause the video at the slides.
Uhmu Unfortunately the presenter keeps talking about the slide ... they are meant to be viewed with the explanations.
LOL regarding the lawsuit remark. I guess that rules out a split screen view with the presenter in a small section of the screen and the presentation visible all the time. I get it, Google is a small start-up company, nobody could expect such cutting edge technology.
In fairness to google, if they still were a small start up, the split screen solution would have been implemented ages ago within a week.
From their point of view, we are just entitled brats complaining about an excellent free public service xD
+Uhmu it's been like this for years. Apparently nobody cares, or their goal is to make the talks unwatchable. I'm really surprised that they allow comments and ratings now ... who knows, they might listen to feedback next.
Btw: look for "poetic naturalism" ... a much better version of this talk, recorded at Oxford a couple of years ago.
EDIT: I mean better in terms of editing ... the content itself is a little bit better here, Sean added a few bits since the early versions.
Thanks, will do.
that last line though! "Space is just a good approximation of a low energy state." I'm going to be thinking of that and running thought experiments all week
I will be thinking of that whenever I have to walk somewhere on empty stomach.
So many thought provoking points I needed to stop and rewind and rewatch many times to understand what he meant. I'll have to revisit what he said many more times and look into his other lectures!
Any time I'm feeling smart, I watch 5 minutes of Sean Carroll and then I do not feel smart. Sorry, me no feel smart.
Same with me, Daniel. :-) But, coming to that conclusion makes me happy, makes me feel good about myself, as I find that I'm capable of suppressing my ego to an extend, that allows me to learn further. And that's great fun :-))And, as I'm not the only one of that species, that makes me feel even happier. Sean Carrol, the Happy-Maker :-))))
Modern physics cannot define space, time, mass, charge etc., yet mathematics enables us to figure out the puzzles of QM, GR, emergent and complexity etc., and enables us to 'understand the mind of the Intelligent Designer who invented Mathematics'.
Sure buddy, at least the last century modern physics cannot explain reality in a satisfactory manner according to you, but you KNOW that your imaginary friend did it all, without anyone creating him, and withou leaving any trace of his involvement or his supposed ultimate knowledge? hahaha publish it and earn several Nobel prizes, but that's not going to happen anytime soon, is it?
Naimul Haq Modern physics can't "define" our reasons for being here (nor explain our presumption that there needs to be one) so I'll invent a sky fairy and be fine with that answer. My neighbor's 4-year-old daughter believes in fairies too.
Daniel Brown
The reason for us to be here is proved, verified and observed. The Standard Model proves how fine tuning of the parameter space, created the self-organizing property of matter, which in turn delivered life and consciousness, although we do not know how FT occurred.
Consciousness can take our thoughts outside our universe, like ID, and the neighbor's 4-year-old daughter.
Hope you are a science guy.
Sir, at 17:06 you showed us an equation that does not have purposes, causes, meanings, judgments. How would an equation look like that has purposes etc. Can you give us an example? Thanks
There is a theory that our essence or "consciousness" comes from outside our physical reality with our brain acting as an antenna of sorts. When you die the receiver no longer works but the source of your ( self, animas, soul, consciousness etc) continues.
Sean Carroll for president 🤘
Sean, - I have a thousand questions to your talk - any one of which no doubt would generate at least a thousand more ! ! !
But YOU DID answer one I have had for some time, -
" Just what or why is it that philosophers and physicists are just never able to ever get along " ???
Sean I think that you pretty much spell-that-out as well as anyone I have heard in twenty years !
Physics and Philosophy just strike me as one on-going hellacious marriage;
But the sex is just so great !
A truly fantastic talk 👍
Philosophy is bullshit since 500BC. You can easily see this in the fact that most major Greek philosophers seem to have thought that slavery was natural.
Well said in a real layman's terms. I now understand more clearly this world and the nature of the universe than to the other speakers and physicists. Thanks for this upload.
Interesting stuff here. This man is more of a contemporary philosopher for intellectuals which is what we call a "Physicist". Primarily because he's informing individuals & shifting their fundamental axiomatic presuppositions which their interpretive framework rests its fundamental perceptions. Essentially he's causing a paradigm shift & altering the framework by which people perceive the world subconsciously. Interesting stuff. Much much different than what you would get from say Jordan Peterson or Joe rogan or Jocko willink , Dave Ruben , Etc...
The fundamental Presuppositions are interesting. Dull yet clarifying.
Yes, he wields much power as he becomes better known and influential. Hopefully, it is for the benefit for us and our realm as the ones who’ve controlled the paradigms of late are insane and controlling and mean. Speaking to employees at Google makes me question what side he’s on.
Thank you. Keep us informed. Us, the general public, that is.
This talk given here and at the Royal Institute are the best physics lectures given in recent times, Feyman would be so damn proud of this man. Talk about big picture vision!!
20:00 FINALLY, someone well respected fucking said it!
'it's a wave - that's what it is.'
I didn't understand that point, although it feels really important to have some basic grasp of it. Can someone link to (or provide) a good explanation please, and why he and others routinely describe the universe as made of particles? It seems crazy that most people with a lay understanding of physics either think it's all particles or wave-particle duality, and they're both wrong.
lettersquash In a sense it's both. He described perfectly well in another lecture where he talked about how the universe and everything in it is really made of FIELDS. Fields are constantly fluctuating, creating waves, waves are comprised of crests and troughs. We call the crests, "particles."
In other words, saying that the universe is made of particles is kind of like saying the ocean is made of droplets, which in a sense is true, but describing the ocean in terms of waves and fields make a lot more sense.
LIQUIDSNAKEz28 uh - no. Something has to happen before the 'crests and troughs' render into what we recognise as matter. What comprises a droplet of water is the same 'stuff' that constitutes an ocean. Not true with with the wave function of a particle. Prior to collapse, the particle simply cannot be said to exist.
Liquid? or is it Master!!? Master... it's you.
Man MGS was so good in the past
Amazing talk! Cannot wait to pick up your new book. Particle at the end of the universe was such a great read and this talk has me pumped to run to the bookstore and grab it asap haha Q&A at the end was really interesting.
The Netherlands does not have a jury system
Enjoyable lecture. I wish our educational system did a better job of matching students and teachers together based on what they are passionate and interested in at all levels of school
You're not doing your job if as a teacher you don't try to introduce new topics to your students, ones that they may not be interested in at first.
Sean Caroll is great and I wish I were half as clear and to the point as him. Giraffes do not have long necks to be able to reach 'those leaves' though as the majority of their norishment do not come from leaves of tall trees. They have long necks because of their combat techniques called 'necking'.
I'm currently running an experiment that aims at proving entropy can lower spontaneously. The experiment might not run for the time I intended because people have started bugging me really hard to tidy up.
*Very good explanation, I think consciousness should be added here, how 5 sense organs combine to produce consciousness to survive from Predators, and how humans after ensuring survival developed intelligence*
An amazing talk.
Regarding the initial story about the 2003 law case against Lucia the Berk; there is no jury system in Dutch law cases as Sean Carroll suggested.
A single judge decides in the Netherlands whether to convict the suspect or not.
In this case the innocent woman was in prison for 6 and a half years, before finally pleaded innocent.
He withholds one thing: Since the discovery of quantum mechanics we know that one cannot know in principle the whole future of the universe, even if we know the present exactly and have infinate computing power. What we may know is just the probability distribution, all myriads of possible configurations that could became realized. So it can't be ruled out that some nonphysical force (a force not in the physical sense) is able to influence the development of the physical world, perfectly in accordance with the equations. Similary if information is conveyed to and stored in some non-physical entity, the equations are not violated. If you are playing a video game and then switch off the computer, you still remember what you have done in the game, although the software that makes it up is not running anymore and it's not written in the ruleset (the code) how someone might be able to watch it. Some people like to sell it as scientifically proven, but the idea that our behaviour is totally determined by physical processes is, at the moment just a belief.
Always worth listening to Sean Carroll, thanks for posting this video.
The first topic this speaker mentioned is that's how a human brain understands instances we can't think that a person is innocent then prove guilt the instance he mentioned at first is if babies die in a place ment to help and keep them alive someone is guilty and that's how we think and if we know someone has no children we automatically think that they are guilty we don't even think that they can't get pregnant for some reason, no we automatically think they hate children so that makes them guilty for the children's deaths. We forget about how good they are, our brain automatically thinks that they hate children enough to end another's life.
"Zeptosecond" That sounds pretty fast.
10^-21
en.m.wikipedia.org/wiki/Zepto- www.simetric.co.uk/siprefix.htm
It's the lesser known Marx Brother. That's how long his career lasted
I just learned something new today, from the schematic diagram @ 32:30 ... an interesting concept, and easy to understand.
Most mind-blowing talk I've seen for a long time! But left me with lots of questions.
How is entropy very low just after the big bang, when presumably everything was much the same? It's a curious instance of "highly ordered", surely?
Also, his putting simple-complex as a different continuum from low-high entropy is a different explanation from the usual (e.g. on wikipedia) where the complex (like life) is acknowledged as being more ordered, and low entropy, compensated for by increased entropy elsewhere in the system to satisfy 2nd Law of Thermodynamics.
So when stars formed from matter attracted together by gravity, was this increasing entropy in the universe combined with increasing "complexity"? How can stars and planets represent less "order" / more "randomness" than a previous state, say, when matter was mostly evenly spread out, just with slight density variations?
This is not a problem either.. Entropy doesn't 'break down' creating life or even seemingly ordered systems like the Earth or Solar System. Taken as a whole - inside the system (which is the universe) everything IS tending toward disorder, but there can be regions of lower entropy within it that still eventually tend toward chaos (ultimate entropy - heat death of the universe).
It's overall.. don't consider little tiny regions as a decrease in entropy. Think of balls mixing in a box, maybe you might get a point when they all end up in the corner briefly, but they're still all mixing overall.
Yeah I understand that, Tom - that's what I referred to as "low entropy compensated for by increased entropy elsewhere in the system". Yes, these still tend towards chaos, as you say (additionally, the theory goes - at wikipedia, etc. - that these regions of lower entropy only exist temporarily because they simultaneously coexist with complementary regions of increased entropy. Usually, high and low entropy are described as less and more ordered. However, one of my points was that Carroll didn't say this, he said that low-high-entropy is a different continuum from less-more-order, and that order increases then decreases while entropy just keeps increasing (I think).
My other question was more fundamental (i.e. dumb, maybe!) - why is the condition just after the big bang thought of as very low entropy, as I assume it must be according to the theory of increasing entropy? If you have one type of stuff with perhaps random minute variations of density or whatever, it's kind of odd to call that 'highly ordered'. Maybe it's a semantic issue and the maths would pronounce the singularity the most ordered thing, while colloquially we resist the idea of calling something that's all one thing 'highly ordered'. We might ask 'How can you order oneness?', when the maths just says it can't not be. Similarly, most of us would naturally call the state just after the BB pretty 'chaotic'.
But you've made me wonder about another fundamental question - how much the idea of increasing entropy is mere conjecture when considering the universe. Possibly measurable in lab conditions, I find it hard to believe anyone can say how ordered the whole of the universe was before the stars formed compared with after, particularly considering the fact that we've only just woken up to the possibility that most of the thing has been hidden from view - dark matter and energy. So much to learn about, so little time.
lettersquash Good points. Well, every time I think I have an insight because what I'm being told seems counter intuitive, the more I look into it, the more the maths begins to get too dense and I have to trust that a physicist knows what he is talking about. Entropy is a good example - they say the entire arrow of time is dependant on the fact that chaos increases, despite pockets within the system where it tends to decrease (before eventually increasing).
Supposedly, the way I understand it, because everything was squashed into a very small point at the beginning of the universe, it took on characteristics of say, a crystal, a very ordered collection of atoms (think carbon within a diamond). Everything was fundamental (ie no atoms, everything was a force or particle because it was too hot and dense at that point) before inflation/expansion allowed them - but at that very early point, it was incredibly ordered. Quantum fluctuations were blown up to macroscopic scales allowing gravity variations and eventually stars and galaxies to form. But the initial conditions were as ordered as can be.
No one knows why it was low entropy at the beginning that's the big question.Why is there a universe? We're beginning to grapple with what the universe is but as to what brought it about?......fuck knows man.
If I understand your question correct you are not asking why the entropy was low but why physicists says the entropy was low. If so, then answers has to do with how entropy is defined in physics. Entropy is defined as the number of possible state a system can be in, not what state it is in. In the big bang this number was 1 or close to it. The limitation of possibilities is what is considered to be "more ordered", and that makes one possible state the highest ordered state.
The reason the entropy is seen as being increasing is because the universe is said to be expanding, i.e. performing work.
So can the reason why an idea is funny be because the universe has an inherent sense of humor?
I have detected a definite pattern in the Universe Sean: although you have started verbally acknowledging glossing over the difference between and proton and an anti proton, you never change the slide.
how does the new form of light which interacts with electrons differently (statically orbiting) affect Sean Carroll's assertion that we've discovered all the particles of everyday life we're going to discover?
_Listening to the Great Teacher_
Watched at least twice before, watched twice again, because I play it while working, 1:02:46
The real lesson here is that while the over all entropy of the universe steadily increases, the overall entropy of physicists hairdoos decreases over time.
Sean Carroll is fun to listen to
Without acknowledging Halton Arp's work on redshift, almost everything you hear from modern cosmologists is going to be deeply flawed. When redshift is properly modeled, our universe looks VASTLY different than what we've been led to believe. It wouldn't affect the masses but any casual student of Astronomy would feel utterly betrayed.
There would have to be massive amounts of peer work done on Arp's theories before any conclusions about the validity of his challenges. Do you believe that there is some type of conspiracy to keep Arp's Redshift theory in the dark? I think Arp has many interesting ideas and it's too bad that he's not around to discuss them anymore but why do you choose to believe his redshift theory over Hubble's Law or any other standard. Does science not look for the best solution?
I'm reading The Big Picture (the spanish translation. My english isn't good enough to read the original) and I want to ask a question. Carroll writes that dark matter / energy don't have any influence upon the basic properties of atoms and the physical laws that describe them, although this dark matter / energy represents more than 75% of the entire matter and energy in our visible Universe. However, He writes in other section of the book that any supposed non physical feature of the reality should exert some influence on the behavior of atoms. Can anyone explain me this apparent contradicition? P.S.: I'm sorry for my bad english.
It seems to me that time travel is impossible for one simple reason. Time is not a stand alone concept. Space-time is the problem. If you could find a way to move through time, you would also need to calculate space. For instance, if I wanted to travel back only a year, I'd have to calculate EXACTLY where the Earth was one year ago, else I could end up a year in the past, but somewhere in the vacuum of space. Since we don't know the whole of the universe, we can't calculate the speed at which anything within it is moving, or predict where any object in it will be at any given time. There is no anchor in the universe with which we could use to make any calculations. IMO
are the numbers of arrangements synonymous with the number of micro states as described in Chemistry courses?
Sean Carroll and Lawrence Krauss are just the best. Gottainclude Alan Guth ... er can't leave out Susskind or; Sussybaby (you had to be there) as well as Dr Sheldon cooper.
Can we use time dilation to live or see the future that we not able to see in this life time (using that one man from this generation can go in 1 Jan 2500 WHAT ARE PRACTICAL DIFFICULTY?
wonderful. literally.
I looked on your website for the t-shirt and I can't find it Sean. I'd sure like one...
I LOVE Sean Carol!!
I'm 50 mins in is Excellent
I watched this lecture from my lower to higher enthropy
It is weird that without any knowledge I got to the same result, as the core of our questioning has to be entropy and space-time.
With my Winnie the Pooh approach all is information, even God if existed and entropy will make him insane by some circle clock time. So those (non existing) entities has to go through on purgatory (this place) in order to revive themselves, cutting back on entropy. 13 level of consciousness zip-ped in by the main chakras and unzipped.
About time, I sense it was 3+1 dimensional and space is low energy= frozen time.
... By the way, I don't think that particles can be influenced by other particles only. It sounds like a caveman wouldn't believe in magnetic field, for he can't touch it. There has to be a such a jump there as quantum mechanic was over classical physics.
... I love the way he explains things! Good job!
This is very unsophisticated, we are beyond this already. Complexity and information.
Very clear and to the point. However I think that some deep issues are more open to question than what Sean thinks. This deep issues are metaphysical in nature, like it or not. He takes a valid position, but that position is not the only valid metaphysical position. Why think that the physical laws describe pattern "laws" and not simply describe the way that a particle behaves? But is not a law, a constrain inherent in Nature. In this view, the "randomness" in QM is a consequence of the lack of constrains. Im not telling that a particle could do anything, but that a particle could do anything inside his/her :D decision space (degrees of freedom).
Another deep difference in view is that Nature is not "made of things" but of process. This view is not in contradiction of Sean insight, because Time in some sense is fundamental, but not space. Nature consist of a co evolution between its components, this ecosystem evolves his "laws", so these are not real laws. The only real laws are the laws of the logic behind this.
See Whitehead work for the best philosophic work in the last century.
the egg has a future in politics, where getting more and more broken is a job qualification
N Marbletoe I can only see how we could see a list to do a good one is for sale for Australia to do a good one is for sale for Australia to do a good one is for sale for Australia to do a good one is
Great talk! but the example of file size for computer people didn't just click. Anyone listening to you have some basic interest in physics and science in general, therefore, they know a bit too, so that's fine not giving examples from the domain you are not much aware of.
Read his book, "The Big Picture". It is really excellent. It is also deep. Put on your thinking caps.
This is really wonderful - thank you!
So I'm watching a talk from Sean Carroll @ Google and @ 28:00 I'm like "Ekinological, WTF!" so I Google it and the first result is a link to this very lecture...WHAT DOES IT MEAN ?!?!?!
Sean Carroll is awesome ... but one critical comment here - it you believe that consciousness is "more than what it is those equations" then you DON'T have to explain that the equation is wrong, as he asserts ... you simply are stating that those equations scope is limited. The equations are right, just as Sean would say that Einstein's Field Equations are right, but don't have the SCOPE to explain quantum mechanics, which is also correct. Sean is very humble in all his videos, which makes him and his genius easier to respect.
Hmm ... he seems to believe that the Quantum State is somehow more fundamental than the reality we experience ... when the whole of math and quantum mechanics is nothing more than a "simple" (relative to reality's complexity) tool to help us describe reality in a way that allows us to reason about it as a whole. If humans didn't have limits to their cognitive abilities, we wouldn't need math. But we have to make whatever we can simple enough to understand.
Time and space are the same thing, except that there is a factor of "i" - Minkowski in 1913 showed us we can think of time as another space axis, albeit in an imaginary direction (imaginary as in the square root of -1). Lightspeed is a conversion factor between time and space. I recall Roger Penrose pointing out that Quantum Mechanics cannot yet reconcile this consequence of relativity theory. We don't live in momentum space ... we live in regular space!
You know, I used to feel the same way about origins and meanings... then I read that the meaning of 'life' is adaptability... which, as it turns out, is exactly what the dictionary says it means. So the answer to what is the meaning of life, is in the f*ing dictionary!
For the answers to the other two questions, I have no problem with the information on those two subjects that is contained in The Urantia Book.
Life began when a Life Carrier brought the blueprint for life to our planet when it was sufficiently briny. He assembled the atoms and molecules into a single celled organism and our Goddess activated it with the "breath of life". some 550,000,000 years ago.
The origin of the universe is more complicated than that. This book describes Paradise Creator Sons and Creative Spirits, who each get to make and run their own individual universes, ours is Nebadon.
In addition is discusses the celestial hierarchy, from the Central Isle of Paradise, thru the perfect Central Universe of Havona, (which is excluded from our vision by massive gravity bodies), thru our local universe. And then what the role of humans is in this whole set up.
Ummm Feeb, you do know that there is no such thing as "the dictionary", right?
This talk really opened my "third eye".
Thank you for sharing that. Knowledge does it indeed. Understanding.
At least the possibility of existence of God should be discussed while discussing about the existence and purpose of life.
God is only the product of human mind. Human minds works via human brains which works according to biology, which govern by chemistry which explained by particle physics (standard model, quantum mechanics, QFT, QED, QFD, QCD etc) which was incorporated into the equation at 17:05. So in an indirect way god was discussed, you just didn't listen carefuly enough.
My point is that the word 'God' was not mentioned even once.You can listen it again..but yes you can argue that it was hinted indirectly...really indirectly?
You have to know that, whatever you agree or not, but for modern, science god is an irrelevant concept. As we get to know more and more about the nature it seems god was only a placeholder (god of gaps) of the unknown or unexplained things throughout history. As our explanations covers basicly almost every phenomenas there is little to no place left for a god to intervene. No remaining possible mechanics of intervention means no interaction with the physical world, no interactions means it may as well be nonexistent by definition (not part of the (physical world). Since, we are not dealing with non-physical exclusively conceptual worlds, one can safely say god is irrelevant from a scientific perspective. (and I have to say I don't use other prospectives)
Well true to some extent...but I think that as long as the first cause argument exists and is not solved by scientists completely (What stuff made the universe, virtual particles etc..whatever other theories that are around), god is relevant to the debate..on a lighter note word 'phenomena' itself is plural of 'phenomenon'
Postulating god as a first cause does not help at all. God is not well defined, but it has to be a very complicated being. Plus, god is just one arbitrary solution to the first cause puzzle. The universe could very well be eternal, with no first cause. Or it could be cyclic. The goal of science is to make complicated things easier to understand. A creator god is not an easy thing, it would have to be very complex. And proposing such a being solves nothing, it just pushes the borders of our understanding one level up. Who made god? And if you say "god is eternal", why not come down one level and just say "the universe is eternal"?
The truth is that time does not really exist, only movement.
'You come here in physical terms, then try to understand another level'
OK.
Great talk BUT is he correct (at 48 mins) when he says "before modern medicine we lived 30-40 years? The ephors of sparta were only eligible for election at age 60 and the bible (it's not always wrong) suggests three score years and ten (i.e, 70) as a reasonable age so those ages must have been common (or at least not rare). Anybody out there know if we have really doubled our life expectancy?
i think what spartans could do to heal in this aspect counts as 'modern medicine'. his point is that without any technology whatsoever, humans as pure biological beings had a life expectancy of 30-40
The big missing piece in this argument is the same one we very often see missing in intellectual presentations : Nothing is said about our personal relations with the concepts used and the great differences in the meanings of the same concepts depending on who uses it and how and when and where ( conceptual relativity ).
Instead there is this strange pretense that we have a pretty clear common idea of what we mean when we use the expression : "..."
He uses several symbols expressed in language : "the world"..."atoms"..."quarks"..."electrons"..."nuclear force"..."neutrino"..."electro magnetism"..."photons"..."background higgs field"..."gravity"..."quantum mechanics"..."matter"..."spacetime"..."particle"..."cause and effect"..."description"...
What he ignores is that all of these are only symbolic information expressions. The meaning we give to them are based on subjectively experienced reality. Like all information they are finite ways we interpret impressions from life and they are in fact understood differently by different people on different occations. They are informational interpretations of patterns we observe in events. They can all be replaced by an infinity of alternative interpretations.
This is an incredibly important point to remember as long as all of this explaining by means of vague subjective concepts takes place right within the same moving reality where we are incapable of seeing whatever exists beyond our horizon of available data.
This talk illustrates well a typical kind of "intellectual blindness" which is still very common in our modern age : The tendency to confuse the description ( as understood by the mind of the subject brain BEING USED BY this description ) with the reality beyond this description ( Invisible and unimaginable to the subject brain which acts on limited information ).
Said in a different way : The tendency to interpret reality FROM INSIDE A CONCEPT without consideration of the larger and invisible event space beyond this event-of-conceptualization.
Conceptual relativity is the big blindspot of academic intellectual thinking.
Please provide the specification for what an "event space" is. What are the rules for "event spaces"? And where does your idea of "event space" reveal itself in reality that is objectively identifiable?
Puzzles of Quantum Mechanics that remain not explainable are not the only puzzles, the absolute speed of light (General Relativity),says if you are moving with speed s and focus light out, it keeps traveling at the same speed c.
As for the second law of thermodynamics, how it breaks down, producing entities like life with lower entropy are not fully understood. Lee Smolin did a good work explaining how plasma keep up their temperature to a high level for a long time, has newer explanations, explaining how the 2 nd law breaks down.
On the whole we have a long road ahead and may never get the job of finding the mysteries that keep us occupied, finished before we are finished, by an asteroid, or a virus, or something.
Those are explained.
1. The absolute speed of light has nothing to do with light, it is the speed of causality. See PBS Spacetime on 'The speed of light have anything to do with light'. There is no paradox in light travelling at the same speed for all observers.
2. This is not a problem either.. Entropy doesn't 'break down' creating life or even seemingly ordered systems like the Earth or Solar System. Taken as a whole - inside the system (which is the universe) everything IS tending toward disorder, but there can be regions of lower entropy within it that still eventually tend toward chaos (ultimate entropy - heat death of the universe).
Tom Walter
Science of the Standard Model shows how the fine tuning of the parameter space produce 'self-organizing property of matter', that delivered the universe, life and consciousness, with perfection and with probability one, eliminating randomness/chance, like winning 20-30 lotteries in a row (each with one in a million chance to win). If that does not imply intelligent design, I do not know what does.
However, at the big bang, dark matter and dark energy were produced with opposite properties, followed by production of particles and anti-particles, followed by production of matter and anti-matter....and on to hot and cold, male and female, up and down etc., otherwise called the 'dual nature of the mathematical/physical world/existence'.
The consciousness we possess, enabling our thoughts to travel outside the universe, is essentially different from what may be called the 'universal consciousness' which maybe non dual and if you can fancy 'eternal', which can invent the laws of mathematics, while we can only discover them. First referred to by Hegel, 200 years ago as the ubiquitous 'universal spirit', like his 'laws of dialectics', or better still, his law of the 'unity of opposites'. He even conjectured the 'evolution is a dialectical process'. Although he had no idea of anti-gravity or negative temperature, the power of his theory laid the foundation of modern science.
Sean is a great guy but Lucia de Berk was not convicted by a jury. In the Netherlands this is never the case.
About the case of Lucia de Berk:
We don't have a jury (to be convinced of guilty or not guilty) in the netherlands.
That's up to the judge(s).to decide.
Amazing
some real knowledge !
"3;37: 'Why were the people on the jury so easily swayed' Oops, he talks about a Dutch case, and we don't use a jury system here in the Netherlands. This has no significant bearing on his argumentation, but when an (in this case, very good) spaker makes such a factual mistake about a point I happen to know about, I always wonder how good his other facts are.
I love this video. Hard to explain
Time is a way to measure the changing state of matter, speed and gravity alter the rate of change.
Wow! So interesting!
IS 'time' really a 'dimension'? If so... it seems to be a 'one-directional' '1-dimensional' phenomena (perhaps '½-dimensional'?). As far as we know - no 'entity' can 'travel' in a 'negative' time direction. The same is not true for the spatial dimensions. If time was '1-dimensional' - like a spatial dimension (a line) - you WOULD be able to 'travel' in both directions? ... a thought :D
Great lecture!
How would you even know if you are moving backwards in time? Maybe every 10 seconds, you are living time backwards for 5 seconds. How would you know? To you it would seem like time is moving in only one direction. Forward.
@@larsalfredhenrikstahlin8012 True i guess :-)
There does seem to be a "fundamental" difference between the past and the future though.
1:01:13 "But again, the idea that things have points is not part of the fundamental nature of reality...this level of meaning and purpose and causality is a higher level emergent thing". Hmm. So is awareness of the 'fundamental nature of reality' independent from the fundamental state itself? If so, there's a contradiction.
Entropy is a requirement for an expanding universe. A static universe would have zero entropy. (Possibly a contracting universe would have a reversed entropy)
The big bang was a reversed entropy?
I wish google celebrated Christmas 🎄. Also I wish Sean Carrol would admit that he actually only has theories. He doesn't "know" anything, I mean: if we are going to be accurate and all.
See you in Portland february 22!
Huh... Reminds me of "The Last Question". Can entropy be reversed? Yes... temporarily. Through Life. But only to hydrogenate carbon dioxide. Hehehe
That is my absolute most favorite piece of fiction in the world. So I also saw the correlation. Good call.
It is also similar to my other favorite bit of fiction ever, another Asimov short story called "The Last Answer". I won't spoil anything, but hydrogenating carbon also reminded me of a few themes in that story.
Life doesn't reverse entropy -- it reduces it in one place by making it much higher in another place. The same can be said of the formation of ice, no life required.
thanks.
Entropy can be reversed (and is getting reversed regularly) at small scales, even by chance. Its all a statistics game. Highly ordered states are just far less likely than chaotic ones, and so they will usually not come into being on their own. But given infinite time, our whole observable universe could just organise out of total chaos just by chance. Thats almost infinitely unlikely of course.
+Brian Twardzik Ok, so I've read Asimov's "Last Answer", but I never even heard of "The Last Question". So I looked it up and read it, and holy crap that was deep!!! Thanks so much for your comment, I don't think I ever would have stumbled across that one otherwise.
For anyone else, go read it. It's a short story and will only take about 10 minutes to read. Well worth it!
Very well put together talk, amazing ideas expressed in understandable terms, just a joy to watch and think along!
The unexpected dangers of trusting in animal instinct looking for the risk in accepting the obvious "Big Picture"? Ie "living in denial" as if it were a principle of self control... (and it is when applied to one's own life, but phrase is usually a customized accusation directed away from the accuser)
"It's all Quantum" is about as accurate as possible for simplicity, but outside that knowledge is the uncertainty of unfinished understanding. (The professor is an expert explainer)
Ambivalence is wisdom derived from knowing the Quantum Mechanism, innate uncertainty.
The "Arrow of Time" in conjunction with the BBT is an observation of Quantum Chemistry as it applies to the reiterative processes of living things.
At least he brings another theory for the existence of the universe....
Sean Carroll you say every point is the center of the expanding universe then when the universe is run backwards there are many points with a big bang starts from it depends on your perspective of how you looking at the expansion so the Big Bang did not come from a single point because everything is moving away from each other depending on where you're looking from so if you run the clock back there are multiple points of it receding so the Big Bang did not contracted to a single point it can track it to an infinite amount of points depending on which star you looking at as a center from the expansion