The Many Worlds of Quantum Mechanics with Dr. Sean Carroll

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UW Video

Күн бұрын

The Frontiers of Physics Lecture Series brings renowned scientists to the UW to offer free lectures on exciting advances in physics with the goal of fostering an appreciation of science and technology in our community.
This October 9th, we’re thrilled to welcome Dr. Sean Carroll, and we hope you’ll mark your calendars for the lecture. Dr. Carroll will explore why the theory of quantum mechanics - one of the great intellectual achievements of the twentieth century - remains a source of mystery for most physicists.
Dr. Carroll will discuss the source of this puzzlement and explain why an increasing number of physicists are led to an apparently astonishing conclusion: that the world we experience is constantly branching into different versions, representing the different possible outcome of quantum measurements. This could have important consequences for quantum gravity and the emergence of spacetime.

Пікірлер: 165
@bhbluebird
@bhbluebird 4 жыл бұрын
I never get tired of listening to sean
@GlennThoughts
@GlennThoughts 4 жыл бұрын
Me too
@folkblueswriter
@folkblueswriter 4 жыл бұрын
The Unified Field problem has a solution finally: [m=E/(c*c) where E=∞=God] mass=Energy divided by the speed of light squared, where Energy=Infinity=God. My book "The Nature of Energy" is coming out this year, verifying the Planck hypothesis. Max Planck revolutionized our understanding of atomic and subatomic processes; he said this about matter and the existence of God as the source of everything: “As a man who has devoted his whole life to the most clear headed science, to the study of matter, I can tell you as a result of my research about atoms this much: There is no matter as such. All matter originates and exists only by virtue of a force which brings the particle of an atom to vibration and holds this most minute solar system of the atom together. We must assume behind this force the existence of a conscious and intelligent mind. This mind is the matrix of all matter.” (Max Planck, The Nature of Matter speech Florence, Italy 1944) The Big Bang: "The Supreme Being is the omnipresent energy who always was and always will be. In His purity and benevolence, the almighty One had existed alone for eons in contentment. Being creative, God wanted to share the joy of existence and have another soul around so there could be interaction and conversation. Being omnipresent He felt no sense of borders for He was already in existence everywhere. He is all-powerful so He could not create an equal entity; the first soul created would have to be a lesser being, one able to travel, arrive at set points to experience suffering and adventure. God said `Let there be light ` then there was light and God saw that the light was good. He called the light Yeshua (Jesus Christ): the messiah would do His work and carry the Word. God never takes physical form but the light could be both a wave and particle to walk the material plane for Him. Angelic souls were brought into existence, but they lacked depth of character from never experiencing suffering. A third of the angels split away with Lucifer the proud Archangel who rebelled against God, the angels loyal to God were given set tasks and functions. Angels are non material beings; at times higher ranking Archangels Michael and Gabriel can be sent to appear before the human race temporarily in material form. The messiah's experiences would consist of the struggle among the human race between good and evil. Add to Heaven the music of passion...Classical masterpieces of Mozart and the Blues of Leadbelly, for all events, all moments, all intentions of independent souls would be recorded and sorted for Afterlife joy. In the beginning of the plan for a physical universe in which physical beings could share the joy of existence God put together the countless codes, formulas, programs, and streams of energy that would bring about an environment suitable for physical life forms. The Universe, the material plane, came into existence by God`s will and was set into motion by a powerful blast of sound that sent vibrations out at many frequencies. These signals would settle as matter interacting with life forms through the universal Buddha Christ consciousness - the mediator. No one has been to Heaven or Hell yet; these are still under construction and will be ready when they are needed - all souls reincarnate over and over until Judgment Day. God states that He made life from the raw material of love. The Creator would continue to create because matter wears out and decays; the vibration would fade eventually as He designed the Universe so that better futures would develop over time. Existence tumbled into the void. The loop was at the end of the cosmos; the last event; the withering separation of light into weak & strong nuclear energies. Gravity, the powerful sister, stood helplessly by - the vacuum stole its grasp on the disappearing particles. Her yielding attractive brother, the electromagnetic host of awareness gently listened to the strings and contemplated the music of the dying universe to its last vibrating strand. Gravity became a notion - a call for assistance, and then was joined by the timid host to turn the oscillating loop around. They were the Yin and the Yang, substantial and insubstantial seeking an inhabited pinpoint to direct, one of six types of quark that could cause light to shine as a plume of electrons to feed the build-up of energy created by the movement between the two realms of being and non-being where dimensions meet. The absolute imperative, the Creator made some changes, allowing chaos and attraction to touch. By His will and His Word, the explosion of existence roared; vibrations sprang forward on a data-filled river of time." (copyright Patrick Boardman, 2020) The debate is over.
@acetate909
@acetate909 4 жыл бұрын
@@folkblueswriter Yup, you figured it out. God did it. That took me about 3 seconds. Why not say sky fairy or space magician. The god of the gaps argument is superstition, not science. I'm sure your book will be awesome. Chapter 1: God did it. The End.
@souldreamer9056
@souldreamer9056 4 жыл бұрын
emf 1200 - I don’t understand this attitude to divine explanations. Why are some people so eager to jump to supernatural conclusion without having any solid foundation for doing so. No maths, no experimental data, no theoretical framework. How do they feel intellectually satisfied that they have the best available answer? Even string theory offers a better explanation than a divine one. How can one process all the available data and firmly land on a divine explanation?
@trevorhunka7689
@trevorhunka7689 4 жыл бұрын
@@souldreamer9056 They do so through a fundamental rejection of the power of science and then go on to allay their fears by creating a nice sounding fairy tale. Religion makes sense as a tool to protect the human mind from the certainty of death. I believe that is why many people are drawn to it. There are more damaging aspects to the cult of religion to be sure (it's really just another form of control) but as I said earlier, I think most of the allure is the promise of a blissful forever after.
@sleepy314
@sleepy314 4 жыл бұрын
Start 8:30
@Bolha24X
@Bolha24X 4 жыл бұрын
Ma men!
@calmeilles
@calmeilles 4 жыл бұрын
The problem with the superposition of awake and asleep cat is that 90% of the time cat will be a sleep anyway, destroying the probability calculations. :)
@DanielFBest
@DanielFBest 2 жыл бұрын
Good point there, heh :)
@danielgregg2530
@danielgregg2530 4 жыл бұрын
Another great talk by this prof. Where has he been all my life cutting thru the detail and getting to the point.
@camspiers
@camspiers 4 жыл бұрын
The final questioner nailed it, what a perfect last question, showed a lot of awareness or the event, Carroll and the room to give give an opportunity to give a summarizing thought.
@maxoftheinternet5206
@maxoftheinternet5206 4 жыл бұрын
I was about to make a similar comment. What a perfect final question :)
@Walker-ld3dn
@Walker-ld3dn 4 жыл бұрын
Wow.....he is a great explainer of difficult subjects. A very, very nice job for non-scientists like me. Thank you, Sean,
@adge610220
@adge610220 3 жыл бұрын
Lecture starts at 8.29.
@Gringohuevon
@Gringohuevon 4 жыл бұрын
Every time he talks about reality my heart sinks...
@JmSantos78
@JmSantos78 4 жыл бұрын
Starts @ 8:35
@B-Mike
@B-Mike 4 жыл бұрын
Awesome!!!! Dr. Carroll.
@mathewjacob7457
@mathewjacob7457 4 жыл бұрын
great lecture, great audience, great questions. thanks.
@michaelmcmurray9252
@michaelmcmurray9252 4 жыл бұрын
Absolutely - a description of consciousness. Space is awesome.
@Lance_Lough
@Lance_Lough 4 жыл бұрын
Well, this is trivial and petty...but Sean Carroll so rarely says anything wrong. -It was Athena who was born from the brow of Zeus, not Venus..
@jeremybryant3894
@jeremybryant3894 4 жыл бұрын
And he would appreciate the correction.
@hegerwalter
@hegerwalter 4 жыл бұрын
51:47 It would be interesting for some of us to see that version of the manuscript with those details written out that the editor scrapped. Face it, the reader of your book is not going to shy away from your explanation. I want to read what you have to say, not what your editor thinks that I should read.
@FlatEarthMath
@FlatEarthMath 4 жыл бұрын
Exactly! Dr. Thomas Sowell has choice words about editors, which he feels are a very low form of life. He's had manuscripts gathering dust on a publisher's desk, simply because he refused the butchery of some hack editor. tsowell DOT com/About_Writing.html (scroll down to the section on Editing)
@DanielRetureau
@DanielRetureau 4 жыл бұрын
I like his presentations. He his a good teacher, clear even if his prononciation is sometimes funny like "équaygions" or equeyzons"; nice, a bit like Jimmy Kimmel. I like his humour too. It is rare to laugh during a talk on theoretical physics... Thank you for this great conference.
@TheZacdes
@TheZacdes 4 жыл бұрын
watch Lawrence Krauss for a very funny guy who knows his shit:)
@davidwilkie9551
@davidwilkie9551 4 жыл бұрын
Would like to change the Title to "The Multiverse Mechanism of Pure Dynamic Mathematics in Actuality", that is the World of experience and intuition.., but don't have permission or appropriate qualifications. I appreciate the genuine commitment to the practical teaching and learning process of sciencing.
@Stadtpark90
@Stadtpark90 4 жыл бұрын
The only thing I find intuitive is, that the possibilities get less over time, as the branching progresses. It seems to have an inherent arrow of time.
@TheZacdes
@TheZacdes 4 жыл бұрын
Of course, its called entropy:)
@bonesjones3421
@bonesjones3421 4 жыл бұрын
Bless your heart Ann !!
@claudiosaltara7003
@claudiosaltara7003 4 жыл бұрын
Chi e’ stato quel genio che descrisse la nascita dell’universo così semplicemente senza avere nozioni di Fisica, Astronomia, antropologia, geologia e agricoltura? Solo un ingegno divino può imaginare la nascita dell’universo in questo modo. E da quella misteriosa rivelazione tutte le scienze si svilupparono nei secoli.
@aaron2709
@aaron2709 4 жыл бұрын
Great!
@Ron4885
@Ron4885 4 жыл бұрын
Agree ;)
@blacked2987
@blacked2987 2 жыл бұрын
*I just wanted to know whether the unentangling of the electron in delayed choice quantum eraser experiment involved actually putting energy to the experiment? as Sean said unentangling or breaking entanglement involves putting energy in there??*
@schmetterling4477
@schmetterling4477 2 жыл бұрын
There are no electrons in that experiment. It's an experiment with light. ;-)
@souldreamer9056
@souldreamer9056 4 жыл бұрын
Excellent talk. He should write a book.
@JoeHynes284
@JoeHynes284 3 жыл бұрын
it helped me to read parts of his book at a time and then watch his lectures. I do not have a background in any of this so for me, it was a slow read
4 жыл бұрын
Sean is a fantastic physicist
@okiesam
@okiesam 4 жыл бұрын
This is a good video. Covers a lot of ground.
@souldreamer9056
@souldreamer9056 4 жыл бұрын
Sam Oakland - He should write a book.
@stephenarmiger8343
@stephenarmiger8343 Жыл бұрын
I hope Sean’s book and his conversations at universities result in increased interest in fundamental physics.
@schmetterling4477
@schmetterling4477 Жыл бұрын
Sean Carroll has given up serious physics long ago. He is now a bullshit salesman. He has a point... selling bullshit pays better and is far easer than physics. ;-)
@edwardmirza
@edwardmirza 2 жыл бұрын
Does anyone know any lectures from these guys talking about quantum mechanics and the musical octave and the colour spectrum?
@idaholindens
@idaholindens 2 жыл бұрын
Did you ever get anywhere with this?
@Jenab7
@Jenab7 4 жыл бұрын
If the sum of worlds that might have arisen since the Big Bang are all possible worlds, and if all possible worlds might also arise from the collapse of the inflaton field as described in the theory of eternal inflation, then is there a one-to-one correspondence between the universes in one case and the universes in the other case? Do theories about the existence of a multiverse, which lead to the same result, differ in any way that really constitutes a conflict between them? Might the mechanics in all such theories be true simultaneously?
@PavlosPapageorgiou
@PavlosPapageorgiou 4 жыл бұрын
Hi Sean, I feel "decoherence" is a bit of a misnomer. It suggests information gets lost in the noise. In fact, decoherence means information spreads so the whole macroscopic world evolves to be in perfect agreement which way the electron went. Each branch is very self-consistent and consistent to one point in the wave function, the opposite of a thermal mess.
@legalfictionnaturalfact3969
@legalfictionnaturalfact3969 4 жыл бұрын
Go listen to theoria apophasis on KZfaq. Right now. Emergency.
@cardinality1975
@cardinality1975 2 жыл бұрын
I know this was a year ago but isn’t that exactly what decoherence insinuates? You lose the entirety of the other states information as they aren’t what your state evolved to be. I guess you could argue that information was never real in the first place as the system didn’t take form but idk
@downhillphilm.6682
@downhillphilm.6682 Жыл бұрын
@@cardinality1975 First attested 1902 (OED) in the electrical engineering sense "the resetting of a coherer." From decohere (also 1902) +‎ -ence, representing the verbal noun (compare decohesion, decoherency).
@JoeHynes284
@JoeHynes284 3 жыл бұрын
I thought that those track marks were from alpha particles not electrons?
@mutex1024
@mutex1024 4 жыл бұрын
8:30
@mikeprice5838
@mikeprice5838 Жыл бұрын
@17:32 Dr Carol is incorrect.... It was Athena
@uneedtherapy42
@uneedtherapy42 4 жыл бұрын
what I don't get is that like Sean says if there is different "vocubulary" at the microscopic and macroscopic levels then how are any of those "levels" related? Wouldn't the Micro ALWAYS influence the macro? Things work on the macro because all the tiny little things happen on the micro right? Things don't happen on the macro just because they want to but by what has already happened on the micro right? Maybe I am not understanding this right? Wouldn't it always be a direct chain from Micro----> Macro? Perhaps free will is just the "belief" that life is different on the macro? Hasn't everything that has ever happened in the history of reality happened because it happened at the Micro first?
@Kindred1a1
@Kindred1a1 4 жыл бұрын
The way I understand it is that the way reality actually is, on a microscopic level, is not how we perceive it at the macroscopic level. We evolved to survive, and in order to do that, our brain has to perceive things in a way that maximizes our survival chances. The vocabulary we use to make sense of the world we live in (perceive) can be done with Newtonian physics. You don't need to talk about branches or decoherence or any of that vocabulary. I dont think hes saying that micro doesnt influence macro. It does but not how we think because we are 'macro'-beings
@1MinuteFlipDoc
@1MinuteFlipDoc 4 жыл бұрын
all patterns/rules aren't 1:1 linear. some patterns/rules are true at the micro level, but the proportion changes at the macro level. ( example - a small animal will be lose more heat than a big animal .. a mammal with a large surface to volume ratio (a small mammal) will lose heat more easily in a cold environment than a mammal with a small surface to volume ratio (a large mammal))
@jeffwads
@jeffwads 4 жыл бұрын
Super-Determinism. Check it out.
@ryanrobin12
@ryanrobin12 4 жыл бұрын
Condolences to Dr ANN NELSON’s friends and family
@MegaMahuro
@MegaMahuro 3 жыл бұрын
Great description of the theory. Conclusion: "We don't know"....
@billandpech
@billandpech 4 жыл бұрын
Can someone please help? I'm missing something. Why do we need to go with the many-worlds concept to explained why discovering the state of one of two entangled particles across great distances at the same time simultaneously predicts the value of the other? After all, in the classical view, two once synchronized timepieces light years apart would be "quasi entangled" in a way that knowing the time of one would suggest the probability of the time of the other? There must be some other phenomena that causes brilliant people to propose the many-worlds theory.
@JohnSmith-ys4nl
@JohnSmith-ys4nl 4 жыл бұрын
Your metaphor of two clocks is exactly the argument Einstein made to explain entanglement. Except he used the metaphor of two gloves. If you have a pair of gloves and place one glove in one box and the other glove in the another box then ship them light years in two directions, once you open one box and find a right-handed glove, then you know the box across the universe contains the left handed glove.
@VytenisR1
@VytenisR1 4 жыл бұрын
John Bells theorem showed that this isnt the case. Entanglement is real. Until you measure it, it would be in a super position(not determined).
@michaelnelson3752
@michaelnelson3752 3 жыл бұрын
If the process of observation/measurement collapses the wave function of an electron into a point like particle then why doesn't the atom of that observation see the electrons collapse into the nucleus since the the point like particle laws of classical mechanics would not allow it to remain in the state of an atom under the wave function equation? How could he explain the process of quantum mechanics and not address this issue?
@lepidoptera9337
@lepidoptera9337 2 жыл бұрын
The process of observation doesn't collapse the wave function. That's just nonsense that was made up by people a long time ago who didn't understand what was actually happening. An observation in quantum mechanics simply removes energy from the quantum system. Once that energy is removed, the system can only be in a lower energy state. What we call "the projection operator" for a measurement is simply the expression of the fact that we have reduced the system by means of energy conservation to a subset of the previously possible states. Please keep in mind that we don't know if the system was ever in a higher energy state. It may not have been, in which case "the observation" would have yielded a null-result. But if it didn't, then it had to remove a quantum of energy and hence the system is in the lower energy state in either case. It's not rocket science... but the usual "collapse" language completely obfuscates the actual physics of quantum measurements.
@tedgrant2
@tedgrant2 5 ай бұрын
But can he explain the Offside Rule ?
@tjejojyj
@tjejojyj 3 жыл бұрын
At 43:00 he says “don’t worry about conservation of energy” because the universe as a whole (the sum of all the many worlds) has the same energy so there is no break with the second law of thermodynamics. Why the does each observer within their own world either not notice or still see all the energy? It may be “in the maths” but as a popularisation of the theory this seems to be totally inadequate. Either something else is going on or the 2nd law becomes an illusion. I prefer Sabine Hossenfelder’s view that many-worlds is logically equivalent to the measurement-postulate. This means, IIRC, “branching” in many-worlds is no different from the unexplained wave collapse. We have no mathematics for either, just assertions about what they mean.
@artfish1075
@artfish1075 4 жыл бұрын
The observer must be entangled with the environment before observing the cat. That much is pretty clear as far as entanglement goes ;)
@TheZacdes
@TheZacdes 4 жыл бұрын
we are always entangled with the environment, cant escape that:)
@goldibollocks
@goldibollocks 3 жыл бұрын
At the point where the wave function branches into the two worlds (one where I saw the cat asleep and one where I saw it awake), how is it decided in which of the two branches my continuous consciousness ends up in?
@manuelbevand6366
@manuelbevand6366 3 жыл бұрын
The answer is there is no such decision. Both copies of you (including the one you are now) will feel consciousness continuity. The trick is both copies think they are “you”.
@goldibollocks
@goldibollocks 3 жыл бұрын
@@manuelbevand6366 Yeah but I'm not feeling both streams of consciousness at once, so there has to be some other me out there who might be feeling continuity of a different timeline but it is not me. I'm not feeling his reality. So, why am I not him and he is not me? What decided that and how?
@manuelbevand6366
@manuelbevand6366 3 жыл бұрын
@@goldibollocks My best guess is: nothing decided that. The wave function predicts two outcomes with two copies, each possibly wondering why they are "themselves" and not the other. Both copies necessarily exist, as predicted by the Schrodinger equation. One of them has to be "you".
@jamescollier3
@jamescollier3 2 жыл бұрын
Intuition tells me that's wrong. it makes no sense and nothing else like that exists on our scale. For me, I'm more likely to believe that we're missing something that would add a new dimensio or view like Plato's cave
@lepidoptera9337
@lepidoptera9337 2 жыл бұрын
The wave function is not a physical entity. It doesn't "branch". Sean Carroll is simply selling you a bunch of goods here that have nothing to do with science.
@IbnFarteen
@IbnFarteen 4 жыл бұрын
Many worlds doesn't provide physics explaining indeterminism? - the equation governs infinitely many worlds but not the one we're in?
@MichaelHarrisIreland
@MichaelHarrisIreland 4 жыл бұрын
He's on the ball, touch of Feynman about him.
@Mirrorgirl492
@Mirrorgirl492 4 жыл бұрын
It's the quick wit and that twinkle in the eye
@doughiggins770
@doughiggins770 2 жыл бұрын
How many world are created in one breath or one jump? Using quantum probabilities here, eh? An infinite number of worlds? Two suggestions: In Newtonian physics, all calculations are always rough approximations. They will never yield a precise answer....measurement issues. Where precisely is the center of an objects mass. Think about it. Your view of quantum states or splits....Invites the problem of infinities. As I suggested at the start.
@lepidoptera9337
@lepidoptera9337 2 жыл бұрын
None. But a whole lot of bullshit gets created, for sure.
@onur.yardimci
@onur.yardimci 3 жыл бұрын
Obey the Schrödinger equation!
@jensonee
@jensonee 4 жыл бұрын
i'm here because Carroll does explain things so we the laymen and laywomen can understand them. but i didn't notice one woman referenced in his lecture as a source for his point of view on quantum theory. is it true that women aren't up to speed on this subject? "In 1999, the number people earning physics bachelor’s degrees in the U.S. was at its lowest point in four decades, with only 3,178 awarded that year. However, in 2015 things looked much different, according to the American Institute of Physics. That year 8,081 bachelor’s degrees in physics were awarded - an all-time high. Physics doctorates also reached an all-time high of 1,860 in 2015. These numbers aren’t flukes or random spikes; the numbers for the previous two years were also high. This trend is due in part to higher enrollment and less attrition among female students. These women remain a minority in physics and astronomy, and many are still having to face challenges with impostor syndrome and mentoring. However, more female students in physics means more graduates overall and a more active scientific community in the U.S."
@martinzitter4551
@martinzitter4551 4 жыл бұрын
That's a lectern, not a podium.
@kyran333
@kyran333 4 жыл бұрын
Our reality is based on information, meaning virtual reality, Only consciousness is fundamental, Consciousness is the computer
@VytenisR1
@VytenisR1 4 жыл бұрын
Consciousness is overrated. There was universe way before there was consciousness and there will be after
@folkblueswriter
@folkblueswriter 4 жыл бұрын
Consciousness is everything. Matter does not exist according to Max Planck. The Nature of Matter speech Florence, Italy 1944 - “As a man who has devoted his whole life to the most clear headed science, to the study of matter, I can tell you as a result of my research about atoms this much: There is no matter as such. All matter originates and exists only by virtue of a force which brings the particle of an atom to vibration and holds this most minute solar system of the atom together. We must assume behind this force the existence of a conscious and intelligent mind. This mind is the matrix of all matter.” The top equation after Einstein's is in "The Nature of Energy", the answer to existence. Energy cannot be created or destroyed, it can only change form or be concentrated. [m=E/(c*c) where E=∞=God] This tells us: mass=Energy divided by the speed of light squared where Energy=Infinity=God. The debate is over. Matter is a wave that collapses into particle form once observed, not just by humans, but the molecules around it. All matter has form and function; all material forms have a soul and a consciousness, so erosion can take place even though a human is not looking at it.
@VytenisR1
@VytenisR1 4 жыл бұрын
@@folkblueswriter yup there is not matter per se, it looks like theres only fields and excitations in them, but it does not require conciousness in any way shape or form. The fields were there before there was consciousness and will be long after. Just because you can internalize your experiences and are here for it does not mean that you influence it or that it wouldnt exist.
@folkblueswriter
@folkblueswriter 4 жыл бұрын
@@VytenisR1 You are uttering nonsense: messiahsword.weebly.com I will get you on Judgment Day atheist. kzfaq.info/get/bejne/o8xxicKS0aq6g6c.html
@seabud6408
@seabud6408 4 жыл бұрын
Did I miss something or did he just say near the end that there is no mystery to spooky action at a distance and that it’s fully understood now .... and real?
@pteronoid
@pteronoid 4 жыл бұрын
as far as i understand it, spooky action at a distance is not really spooky action at a distance per see. say you have 2 entangled particles, you don't know their spin and they have 50/50 chances to spin up or down. now you take one particle and move it far far away. we tell that the particles are in a superposition of having both spin up and down only because we haven't measured it yet. but i think that their spin was determined at the moment of their split, that is when the 2 worlds have split and both exist separately. so when you decide to measure the spin of your particle, you know what is the spin of the second particle and hence in what world you are, but you don't influence the spin of the particle, you just observe it. thus you are not influencing the second particle, you just know what is it's spin. a more quotidian example: say you have a randomizer that will write on 2 papers 1 or 0 with a 50/50 chance. it wrote the number and sealed the papers in envelopes, you take one and stay home, your friend takes the second and travels to the moon. one day you decide to open the envelope and read the number. now you know your number and the number of your friend. but you have not influenced the number of your friend. so no info was transmitted instantly. the paper with the number traveled to the moon at the speed of your friend's ship and the number was determined at the moment of printing, way before you read it.
@VytenisR1
@VytenisR1 4 жыл бұрын
@@pteronoid thats what Einstein illustrated with his glove analogy. Seal two gloves in a box without knowing, send them apart and look inside. If you get a right hand glove then the other one will be left hand. But John Bell proved that he was wrong and entanglement is really real. They are in a super position. It would be 1 and 0 at the same time until you measured it.
@pteronoid
@pteronoid 4 жыл бұрын
@@VytenisR1 well John Bell is not very convincing for me. I would argue that even if you don't know what it is (until you measure it), that does not mean that it is in a superposition, that means only that you don't know. what glove you got was "decided at random" at the moment when the box was sealed and handed to you. are the gloves entangled? in a sort, if you know one, you know the other one. but is it spooky action at a distance violating the speed of light? we wish, but it's not.
@VytenisR1
@VytenisR1 4 жыл бұрын
@@pteronoid i agree. But lucky for us, theres more people, done more variations of the experiment, that are more convincing. Its you right to believe that they are incorrect or they missed something or theres an error in all those experiments. Watch the quantum eraser experiment
@pteronoid
@pteronoid 4 жыл бұрын
@@VytenisR1 don't get me wrong, i don't want to believe in wrong things just because i don't like the right ones. i am a science guy. i just have many questions for these interpretations of QM, so far the many worlds interpretation responds to them well without creating paradoxes. also the quantum eraser experiment, do you know where i can find the actual experiment? all i find are some illustrations but no actual info about who performed the experiment, the actual data. it's as if it is only a thought experiment.
@TheZacdes
@TheZacdes 4 жыл бұрын
Heres a question.How do you know WE are not in a branched universe from the original??,lol
@bobaldo2339
@bobaldo2339 4 жыл бұрын
Yours is a branch. Mine is a tree. (Just kidding. Of course we are, and there it branched again, and again, and again, etc.)
@Mirrorgirl492
@Mirrorgirl492 4 жыл бұрын
How could we be anything/where else?
@rajeshs3215
@rajeshs3215 4 жыл бұрын
Why is that some people dont see the radioactive electrons are particles and others see them as waves? Shouldnt that be different based on observer?
@goobytron2888
@goobytron2888 4 жыл бұрын
Rajesh S Watch double slit experiment. Then the delayed choice quantum eraser.
@TSBrax
@TSBrax 4 жыл бұрын
If you observe it then you measured it. If you know where it is then its a particle but until you do measure its a wave.
@michaelmcmurray9252
@michaelmcmurray9252 4 жыл бұрын
Both are mapped in 2 dimensions - purpose.to describe 3 dimensional properties of matter in motion . e.g. oscilloscope wave is a particle spin. "symbols fall short explanation "
@barrym3651
@barrym3651 Жыл бұрын
Beware ads
@StanTheObserver-lo8rx
@StanTheObserver-lo8rx 4 жыл бұрын
I think he's a little sensitive about many worlds...I'm sure I detected a swat at Sabine and PBS' Space Time that call multi worlds extravagant and unnecessary in one of his vids.
@scottmiller4295
@scottmiller4295 4 жыл бұрын
eh it makes some things easier to explain to my teeny mind. but it one of those things that is difficult to test for isn't it? but we cant test any better for the singular universe nor can we explain why the values we see are so tuned to having stuff and eventually life when they so could not. did out singular universe just reset till it got something that worked? is there some processes to get there? is the strong and weak forces set my something, the force of gravity? if they are then they almost seem to have to be emergent from something. we do not have any working theory of gravity PERIOD. someone gets that they a step closer to some of these questions. but in a multiverse where things very much act like quantum systems, you get universes emerging and collapsing all the time, just random chance would net you some occasionally, eventually some of those would see a universe that would look like ours. that is why i think some of us like the multiverse vs the not multverse. both sides got work to do however. make your cases.
@StanTheObserver-lo8rx
@StanTheObserver-lo8rx 4 жыл бұрын
@@scottmiller4295 It kind of irks me when he says "No,animals cannot make many worlds..only humans"..and that is what he said. I'm sure most pet owners ..of many types of animals would wonder why not?...keep on going to bacteria that live an hour..how many quintillion to the quintillion plus worlds have they made? See,you have to buy into the anthropic principle to go with many worlds. As if we are apart from a Universe made just for us,or even just YOU. That's hard for me to believe.
@scottmiller4295
@scottmiller4295 4 жыл бұрын
@@StanTheObserver-lo8rx well here is my problem with it we are animals, so its ego centric to say it :P. we highly evolved primates part of nature and evolution despite our big brains able to ponder the big issues. but yea when i consider multi temporal dimensions i am very much thinking about the quanta of life not just humans, but here is one to bake the brain. if we emerge our realities by our own experiences and all other humans are emerging our own then we would be be in our own little temporal or universal bubble pretty early on and it would spit off more and more as you went on, now do it for for every animal bacteria and plant and leaf. but people far smarter in math than i assure me space has space for all that and more. i still struggle how space became a thing and when did it become and thing and why? not our space but all the space that all our space and any other spaces that came to be emerged from. life finds a way i guess.
@robertw1871
@robertw1871 4 жыл бұрын
Ah the frustrations of trying to understand statistical approximation of reality through obviously lacking and incomplete mathematics. Imagine a future when every pupil in grade school knows the exact answers to these questions, just as we have an advantage on the 14th century, so shall the future inhabitants of our blue marble. Oh how I wish I could witness it.
@Oners82
@Oners82 4 жыл бұрын
You misunderstand the nature of the problem entirely.
@robertw1871
@robertw1871 4 жыл бұрын
@@Oners82 Glad to know you have it all figured out, will you publish soon?
@Oners82
@Oners82 4 жыл бұрын
@@robertw1871 I don't need to publish, what I am saying is already well established and has been for decades thanks to Bell (a more recent 2011 paper confirmed that QM is complete and no amount of change to the theory can give fuller decriptions/predictions). Essentially you are saying that restrictions on what we can know via QM are due to the mathematical formalism itself, and that a better formalism would fill in these gaps. However we know that such a hope is in fact in vain - the limitations on what we can know are due to the nature of quantum systems themselves and are completely independent of the formalism used to decsribe them. In other words it doesn't matter how we model quantum systems, there will never be a complete description as such a thing is impossible. See Roger Colbeck; Renato Renner (2011). "No extension of quantum theory can have improved predictive power"
@robertw1871
@robertw1871 4 жыл бұрын
Oners82 Excellent, we should then immediately defund all high energy physics experiments as there is nothing left to know. All I was trying to say is than in a few hundred years this concept might be proven wrong, just as Newton was as correct as could be someone came along and completely redid this entirely even though all physics experts at the time thought it unnecessary. I assume there is still fundamental principles we don’t yet have correct being that physics can’t even build a simple majority on exactly how to apply the mathematics we currently have. Obviously I’m not in the shut up and calculate camp. Has string theory or it’s derivatives been completely ruled out? There still yet be something more fundamental beneath QM as most believe there is.
@Oners82
@Oners82 4 жыл бұрын
@@robertw1871 Why the hell would we defund high energy physics??? It is hard to tell whether you are either incredibly stupid of just dishonest. I didn't say that there is nothing left to find out, I said that your understanding of the issue is completely flawed and has already been proven to be wrong. Nothing will change that fact regardless of what delusional hopes you may have. Learn how to read.
@therugburnz
@therugburnz 4 жыл бұрын
what got my goat wasn't the Rutherford in seventh grade it was in college and them saying the election had a wave function or the wave function of an electron when it is more like there is the wave function for electrons. I know that's not nearly close to exact but it is a better way of thinking about it over all so that entangled pairs aren't so spooky. This is how think of it as a musician. Of course musicians like mystical and spoooooky sometimes. Therefore I'm wrong, ill see myself out.
@Oners82
@Oners82 4 жыл бұрын
The election had a wavefunction? Lol.
@hamentaschen
@hamentaschen 4 жыл бұрын
Marginally better suit than the one he wore at the Royal Institution lecture. Marginally.
@johnmcntsh
@johnmcntsh 4 жыл бұрын
I wish everyone would stop using "Many Worlds Theory" . It is the Many Worlds Interpretation.
@BR-im1nl
@BR-im1nl 4 жыл бұрын
May Ann rip
@thomanderson7981
@thomanderson7981 4 жыл бұрын
I think there's trillions of universes bc from w we can observe, bc 1 is the loneliest number I've ever heard. Nature always multiplies itself.
@SernasHeptaDimesionalSpace
@SernasHeptaDimesionalSpace 4 жыл бұрын
to me even light
@davidwilkie9551
@davidwilkie9551 4 жыл бұрын
"Looking" is a functional definition for intelligently navigating through existence to a particular focus of superimposed information, a mapped location in the Eternity-now time duration timing Interval (= spacing "Fields" of sync objectives), by synchronicity of omnidirectional-dimensional substantiation Principle. If-then cause-effect, Everettian wave-package probability, you see the expected Cat +/-, that is all there is, a rebalanced re-proportioned branching of the Singularity positioning here-now forever.., entanglement-equation. "Everything is continuous creation connection"/QM-TIMESPACE => no-thing is absolutely discrete in Time, only proportionate zero-infinity reciprocal difference range. The Many Worlds interpretation presented is a type of (Atheistic) Mathematical Disproof, (=how to be infinitely wrong/devil's advocacy), of Everettian Wave Equations, ie the same potential possibilities for the superimposed sync of dead and alive Cat applies to the Observable Universe, ..Singularity positioning POV of multi-phase superimposed frequency interference positioning-> temporal entangled Image condensation and point density and intensity of probability, AM-FM distribution. It's a good idea to learn intelligent uncertainty.., the best reason for continuing to science away "woeful ignorance". (Reductionist logic = QM applied to Schrodinger Wave Equation + commentary) Singularity, Central Limit 1-0 positioning probability, Eternity-now, Superspin etc.., Multiverse branching is the potential possible future of infinite eternity, quantization, relative timing connection rates in potential possibility frequency modulation is the natural occurring number-condensation cause-effect of Natural Logarithm-> Quantum Operator Number ratio of density and intensity, dominant resonance probability identification, from this omnidirectional-dimensional Superposition-point Singularity. Entanglement mathematical equation, is another label for eternal continuity, Eternity-now that includes symmetry and i-reflection collapsed wave density and intensity of modulated probability in potential possibility positioning.., or observation = synchronicity and instantaneous information balance, the QM-TIMESPACE Principle In-form-ation formulae of functional Mathematical Abstraction Equations.., the time duration timing modulation function of information. Etc etc Physics is "How the Heavens go", everything, really... _____ I saw a video of Steve Jobs rallying the team and saying how "building the Iceberg", meaning development of a new product, would not be understandable by the Tip that is visible, and it "takes time". That is an analogous situation to the 4% of apparet material universe, most of it's under the ocean of Time Duration, yet it's always here-now-forever. The equivalent observable to the 4% in Time.., is whatever you think you've seen, it is radically disproportionate to the actual circumstances, ratios of ratios are quantization infinities of infinities, in the Hologram of pure relative motion, time duration timing, the Tip of which is The Calculus. Watching and collating KZfaq science lectures across the face of human knowledge should be enough to suggest that how Intuition is developed, applied and interpreted.., before, after and during a lifetime Education.., is diffuse and chaotic at the very least, except for the most Specialized Professionals.., meaning (philosophically) most of the core understanding required to interpret the Actuality of QM-TIMESPACE has been "deranged, misplaced, misattributed", in an unavoidable chaos by (not actually scientific) "dispassionate abstractions", from which the POV of Self, and the Observable fact of Perspective, that has been deleted from the 4% of Observable Universe.
@Dan.50
@Dan.50 2 жыл бұрын
This isn't science, it's religion. This stuff makes a Voodoo priest look sensible.
@lepidoptera9337
@lepidoptera9337 2 жыл бұрын
Actually, it's business. Sean Carroll has found out that nonsense sells better than facts.
@penderway
@penderway 4 жыл бұрын
So each and every moment a tree doesn't fall in the woods, a new world is created where it does?
@aaron2709
@aaron2709 4 жыл бұрын
Not exactly. Branching happens on the quantum level, the micro level. Trees standing/falling are the macro level. You might say the different states of the tree (standing, falling) emerge in the different wave branches but the branching happens because of tiny quantum events.
@penderway
@penderway 4 жыл бұрын
​@@aaron2709 But doesn't this video argue that the macro level observer is also in a quantum superposition state?
@aaron2709
@aaron2709 4 жыл бұрын
@@penderway I would not phrase it quite that way. Rather, everything we see in our macro world emerges from the quantum world. Living in an 'emergent' world looks rather different than the quantum world it sprang from but... it all follows 2 rules: everything can be described as a wave function and all wave functions obey the Schrodinger equation. There may very well be a separate universe for every variation of standing/falling trees but because of decoherence, these separate worlds can never interact in any way. We'll never see them. The only way we can even know they exist is because Schrodinger's mathematical equation predicts they will. If you believe Schrodinger's equation (which has never been wrong, never falsified), this is the result.... many worlds.
@larsalfredhenrikstahlin8012
@larsalfredhenrikstahlin8012 4 жыл бұрын
@TRIBAL BY NATURE Lol.
@berserkerviking1
@berserkerviking1 4 жыл бұрын
It was Athena that sprung from the brow of Zeus
@RickReasonnz
@RickReasonnz 4 жыл бұрын
I too hate it when people mix Greek and Roman Gods!
@waynebaird21
@waynebaird21 4 жыл бұрын
I could not watch that many ads, too bad my loss. Unsubscribe ?
@Mirrorgirl492
@Mirrorgirl492 4 жыл бұрын
Or get Adblock and listen again...
@geezassprice1815
@geezassprice1815 4 жыл бұрын
Dr Sean Christmas Carroll you need to take some lessons from Nikola Tesla
@Oners82
@Oners82 4 жыл бұрын
You need to stop being a childish troll.
@sethleary1877
@sethleary1877 4 жыл бұрын
I wonder about the Epoch Times advertising on this video. There doesn't seem to be much overlap between the hard science of Sean Carroll and the conspiracy nonsense the of the Epoch times.
@scottmiller4295
@scottmiller4295 4 жыл бұрын
youbube bot put them here? wow you really got nothing better than to bitch about someone buying ads on youtube? run adblocker normie no more ads problem sole4ve for you you never have to see the evil epoch times, or walmart and their slave labor force, and apple and their slave labor and toxic mining operations, and google and their orweallian social engineering you do not have to support and fuckbook and their bullshit ads. fuck off. install adblock.
@shaunmorgan4997
@shaunmorgan4997 4 жыл бұрын
Yeah buddy.
@tamasmihaly1
@tamasmihaly1 4 жыл бұрын
I love Sean Carrol, but this needs to be said. If you want to meet some of the most pretentious people (students and faculty) in the Western fucking hemisphere, look no further than UW Seattle. Situated in the landmark of sociological failures *The beautiful and "Diverse" U District; where you can risk getting mugged or infected on any corner you chose. They don't jail the homeless and the insane here. That is inhumane. Instead they ignore them. The irony of the UW School of Social Work students pompously parading themselves on the sidewalk next to the junkies and madmen whom that they pretend to care for but instead blithely ignore is better than all the validation of the world. I'm not a fan.
@frankiemakinster2830
@frankiemakinster2830 4 жыл бұрын
being a cat lover I fell sad when the thought experiment is done.
@Jenab7
@Jenab7 4 жыл бұрын
Skip forward to 8:37 to avoid an unrelated eulogy and an obnoxious promotion of "diversity" among people who should be interested in physics and in the _capability_ of the people who are hired to do physics.
@cancel1913
@cancel1913 4 жыл бұрын
@David Sims Absolutely!!! Get back to being scientists, for Pete's sake!
@cancel1913
@cancel1913 Жыл бұрын
@Cenhancer A ton and a half more than you do.
@vectorshift401
@vectorshift401 4 жыл бұрын
"Many worlds" is not physics. It is philosophical metaphysics. It adds nothing to predictability. His concerns are definitely "just philosophy". There is nothing in the wave function requiring the creation of universes every time a measurement is made. He raises the wave function to the status of a God and and says infidels are committing a sin of not taking him/ quantum mechanics seriously if they don't believe his theology of wave function creationism. He proselytizes way too much on this.
@scottmiller4295
@scottmiller4295 4 жыл бұрын
we do not know either way for sure get back when someone has a unified theory of everything and let us know.
@derdagian1
@derdagian1 4 жыл бұрын
Thank me for irritating yer wife! You had bad nights...Hahahaha I
@lenfirewood4089
@lenfirewood4089 4 жыл бұрын
"The universe gets a bit thinner each there isa superposition"!! He is barking mad!
@artfish1075
@artfish1075 4 жыл бұрын
He certainly is. This is the first time I saw him in this mood in a video. Interesting, I wonder what happened for him to loose his usual nonchalance.
@VytenisR1
@VytenisR1 4 жыл бұрын
@@artfish1075 he always held this position, watch some of his old lectures. Just this time maybe he went a little deeper into the subject then the videos you watched
@Tom_Quixote
@Tom_Quixote 4 жыл бұрын
@@VytenisR1 Maybe he's holding a superposition...
@robertmolldius8643
@robertmolldius8643 2 жыл бұрын
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