Many Worlds & Quantum Realms (with NoahFinnce) | Sci Guys Podcast #83
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- čas přidán 14. 11. 2020
- This episode will definitely change your life!* NoahFinnce joins us this week as we delve into the multiverse and discover the weird science behind the Many Worlds Interpretation of Quantum Mechanics...
*Just maybe not in this universe.
CONTENT WARNING - S*icide mention between 52:30 and 56:58.
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REFERENCES
Quantum Mechanics: A Complete Introduction - Dr Alexander Zagoskin
• Sean Carroll: Many-Wor...
• String Theory Explaine...
• Parallel Worlds Probab...
• The Trouble with Many ...
• The Problem with Quant...
• Understanding Quantum ...
• Parallel Universes: Ma...
arxiv.org/pdf/0811.0810.pdf
arxiv.org/pdf/1104.2822.pdf
arxiv.org/pdf/1001.2758.pdf
science.howstuffworks.com/inn....
www.forbes.com/sites/startswi...
www.newscientist.com/article/...
www.scientificamerican.com/ar...
www.nature.com/articles/d4158...
www.quantamagazine.org/why-th...
plato.stanford.edu/entries/qm...
www.britannica.com/science/an...
www.britannica.com/science/co...
www.britannica.com/science/mu...
phys.org/news/2018-05-death-h...
blogs.scientificamerican.com/...
www.newscientist.com/question...
www.forbes.com/sites/startswi...
www.britannica.com/science/qu...
www.britannica.com/topic/phil...
science.howstuffworks.com/inn...
www.nature.com/articles/d4158...
Whenever Noah is on these episodes he always asks such GOOD QUESTIONS. Like idk anything about quantum physics and neither does he, but his mind creates these fabulous questions to further understanding and like bitch I’m just trying to catch up. I always feel so smart after watching these, quite a feat, A+
So here's the thing. I'm currently a physics undergrad student. I've taken several courses on Quantum Mechanics. I'm familiar with these models and the definitions of these terms, especially the introduction part. BUT I never considered how I might explain it to someone else with little or no prior knowledge. This was FASCINATING from a teaching perspective. How would I explain this to my past self from like 5 years ago? How tf did my lecturers manage to teach me this stuff in the first place? Honestly, I have no idea. I loved watching Corry try to define terms like "superposition" and "state", because I was also trying to do it in my head as I watched, and I struggled.
lmao, when Luke jokingly asked "What kind of quark are you?" I had to laugh, because when we studied quantum and theoretical physics, our professor began teaching us by having us all take an actual quiz of "Which type of particle are you?" and it was amazing
if anyone wants to take it, its
Particle Quiz - CERN
I was apparently a bottom quark (lmao this quiz really do be calling me out)
“I didn’t finish it, but I wrote an essay on it”
I’m a theatre major who has been required to read Hamlet in several classes... and I’m still not sure how it ends 😬😬
Dude, I have seen the play performed in the actual castle it takes place (kronborg, it’s danish) and I still don’t know how it ends!!
Probably isn’t worth it
Guys the ending is like the most famous part, everyone dies
@@rebbyberard8150 dude, are you serius? I should have payed more attention to the plot, less aention to the ghost
@@livemoller792 bro, yes! The ending is literally everyone gets poisoned and one dude survives to say some shit and then its over
@@rebbyberard8150 damn, I'll borrow it from the library
Any other bisexuals feel attacked by quarks having to choose a state, like they have to pick a side?! Just let them vibe in superposition😂
In the many world interpretation they don’t have to!
This is an excellent way to put it
That's what gender is like for me as a genderflor person. It's constantly shifting, and can't be pinned down to anything specific.
I can't stop seeing the UFO on Corry's shirt as a mushroom and it stresses me out
I too am now stressed out
IT'S NOT A MUSHY??? I have been lied to, by myself
you've made me unable to see it as a mushroom
should i be studying for my literature exam? SUUURRRRREEE- but alas
Should I be doing my graphic arts homework? SUUUUUUUUREEEE- but I have the attention span of a squirrel and an somehow *still* watching this. I started watching it when it *came out*.
@@cam6963 Vibe!
update. my squirrel attention spanned self finally finished it. lmfaooo
Should I be writing an essay about Emperor Augustus? Yessss -
@@RedWolf-bn9tk I am late for yet another graphic arts assignment lmfao- I’m right there with you friendo.
I've just found your guys' channel and I love these podcasts! I'm a PhD student in graphene-related science so I do a fair bit of QM in my work but your channel is a great introduction to lots of different areas of science I haven't come across. Lovely to listen to and very interesting!
because I am not a native English speaker I sometimes don’t know the translation of a word and sometimes it happens that the word I don’t know the translation of is very central in the episode, so I just learn about a whole topic and at the end of the episode I notice I don’t even know what you were talking about the whole time but I still could write an essay about it :)
A wave function is a super position of eigenstates. Eigenstates is a scary word though so think of it as the base components. I think talking about vectors is confusing for non-physics people so let's think about it in terms of a painting. Every painting is some combination of the primary colors, so think of your favorite painting as your wave function. The eigenstates are YELLOW, BLUE and RED. Every painting (generally speaking) is a combination (or superposition) of these colors.
That is a very good example thank you. Also I love your username!
i would love the part 2 electric boogaloo, hopefully it's predetermined in this universe
I laughed so much with this and I actually learnt something. We are listening guys, even if you don't believe it. Same as Noah I didn't like physics in school so it's nice to try to understand these things now as an adult with a different perspective. and with a nicer teacher.
sorry i dont wanna be one of those people but umm... DID THEY ACTUALLY JUST READ MY REVIEW??! and they LIKED holy sh-
when corry started reading i was like oh sh*t is that my review?! anyway lots of love from germany❤
and i lowkey love their accents like i hate my american accent so much
Idk what it is about this episode, but this is my third time watching, I genuinely love this topic and this episode keeps making me want to re-watch
Dark suddenly started to make so much more sense I'm literally so thankful for that lol. Loved it, Corry explains so well
Drop the name of that psychics book here don't be shy😔🤭💖
I wrote my EE (the equivalent of an EPQ) on the relationship between philosophy and quantum physics so I’m loving all the lovely snippets of philosophy because it just makes me so happy :)) Will definitely be watching the links in your description!
I’m currently studying IB and do philosophy, do you still have a copy of your EE? I’d love to give it a read
i fall asleep to these i love them so much
i happened to watch this podcast one time while doing my schoolwork during this past year, and after that i could no longer do my school work without listening to it. i just find that a little funny lol
I’ve listened to people explain QM before and I always go with the flow and kinda get it but can never conceptualize the ideas on my own but this podcast episode really helped me absorb QM hypotheses in a way where I can think about it on my own time- this is wildddddd. Thanks!
My thoughts for the question at the end: all of them are a variation on me. The fact that they are slightly different to me doesn't mean that they're not me, because past me is different too and so is future me. When you get to a variation that is so significantly different from me that I wouldn't be able to recognise me, that doesn't mean that isn't still a variation of me because there are plenty of me's who are almost identical to that version and those will have their variations that eventually lead back to me. I am one of many variations of me and they are many variations of me. So there is no point where I am not me really since all of those variations are a possibility of me. Not sure if this makes any sense but these are my thoughts on it.
I love these eps that delve into subjects I would never explore on my own.
i understood maybe 10% of this but you know what i had a grand time during it
Question, Is the reason they only exist in a state when we measure them because we only know about them because of the way that state interacts with that measurement? So it basically exists in a potentially infinite amount of states but we've only been able to detect/measure it in x amount of states. How (for lack of a better way to put it) circumstantial are the measurements?
A thought I just had on Schrödinger's cat: in a way isn't the Geiger counter measuring the outcome?
Edit: I posted too soon, Luke literally made to exact same observation lol
But here is the spooky thing - the Geiger counter can be set up but if no one observes it the cat remains in an indeterminate state.
czcams.com/video/A9tKncAdlHQ/video.html
Yes yes yes yes can tell this is gunna be a great episode
Excited for this one
I really like you episodes on physics! Can we get one where Luke talks about his relationship with physics? He seems to know a bit about it and study it on his own, would love to hear his ideas!
Throughout this entire thing all I could think of was antman
I love this podcast! I learned a lot and now I'm starting my own podcast! I rate this 5/5!!!
In collage listening to them ❤️❤️
One thing I do love however, is to see how science is getting closer to describing what a lot of other people already know. Som people, like scientists, need these kind of complicated explanations. It´s great to see how spiritual experiences (by say shamans, völvor/völvas and medicine women/men/people like myself) is put into words. I know this sounds weird to scientists and people of little trust in the universe (aka faith), but what a shaman essentially does is to observe all of these layers and possibilities and chooses which one to draw closer. And if you also pose that every human has "their own universe".. oh no, science hasn´t gotten to that one yet, have yet? ;) If there is a theory on that let me know.
I've heard a lot of the words used in this episode in some of the music by king gizzard and the lizard wizard and that's all I've been thinking about
ah yes we stan king gizzard and the lizard wizard
This topic always makes me think of Space Dandy, such an amazing anime
One thing I've always found odd about schrodinger's cat is that the likelihood of the cat being dead is actually higher than the likelihood of it being alive. There are more reasons for the cat to die even outside of the poison but no reason for the cat to survive the poison so the cat being alive or dead is NOT 50/50. This doesnt invalidate the thought experiment (if anything, it's more accurate to superpositions where one state is more likely than another, which is basically all of them) but it does mean that you CAN make a prediction of the solution before measuring it and making the solution real.
That’s exactly why it remains as a thought experiment! Because you’re setting the parameters as 50/50 by ignoring all other causes of death
So for shrödinger's cat, the radioactive material is a fundamental part of the thought experiment. I've heard it explained before with just the cat having a 50% chance of dying, but the core of the experiment is taking the superposition of a single particle and making it affect something at a much larger scale. Am I getting that right?
So the many worlds interpretation doesn't state that new universes are formed, but instead that every universe that'll "split off" exists already. There are no real splits, only overlapping universes. The measurement of a particle is only the moment when some of those universes stop overlapping. Did I get that right?
That question at the end threw me into an identity crisis lol I guess I had to come to the conclusion that I am not, nor have I ever been me. Misha who? Never met 'em.
I dropped out of my A-levels but I'm glad that my knowledge of Y12 Physics came in a little bit handy. Honestly, I really miss learning about Physics even if it's fucking hard so this episode gave me some nostalgic comfort lol.
Xoxo atom girl✨✨🤭
Quantum entanglement is basically how the universe works
Corry explaining superposition better than my professors 🙃🙃🙃
I have a degree in physics, just to preface this with that haha. At the risk of sounding pathetic, honestly really wish I could have been a guest on this lol. Anyway, thought I could provide some corrections and such.
WAVEFUNCTION: The definition you all said is really not...that correct. It is a sum of states that the particle can "be in" but those stats have no real physical meaning, as they are equations with 2D numbers (aka complex numbers) and don't offer any physical interpretation. The stuff that does are the eigenvalues and eigenvectors *of* the wavefunction, and the squared integral of the wavefunction itself. That last bit might not make sense if you don't know the math, which is fine. Specifically for the wavefunction, this is a better definition for a sort of everyday meaning:
Ψ(x) is the wavefunction, doesn't have much physical meaning, but if I want to know the probability of finding the particle between position a to b, the sum of ψ(x)^2 through all those position is that probability. When you take the square and sum it up, all those 2D numbers go away and you get a numbers between 0 and 1, always, THAT has physical meaning. aka, a probability. It has NOTHING to do with wave/particle duality (the states are not particle vs. wave, the wavefunction is describing the **wave** of probabilities)
ENTANGLEMENT: I honestly do not know what the original definition of this was trying to talk about. Every particle in the universe is not entangled....at all. It's much more the other definition that co-host had (i'm sorry i always forget your name, Luke?, but you are awesome lol), that first definition was broken down by Noah's question...a particle cannot be entangled with more than one, or if it was they would all need to be entangled together. It's a very specially property that has to *happen*, particles has to *become* entangled. iirc the only thing we have managed to be able to entangle are particles of light, photons.
23:02 Regarding the "faster than light issue" it's not even really about "no data transfer". It's more like, when they get entangled, this is already set up wayyy back when. A common analogy is a pair of gloves, you put right hand glove in one box, left in another. Mix them up so no one knows which is which, fly one to the other side of the world. If they stay entangled, then if you then open one up and see it's a left handed glove, you know right away the other is right handed. Nothing "traveled", the "encoded" knowledge about the other glove-particle-was always there. The analogy to where the particles become unentangled, because this can happen, is like if someone messes with one of the boxes (one of the particle gets outside influence and it becomes unentangled haha)
THEORY: In science, theory is the biggest title something can get to be "the truth", this is sooooo often misunderstood. Take "The Big Bang Theory" (not the show) people see that and say "well it's just a theory" NO. It is the most widely accepted truth of the beginning of the universe that we have, thus it is given the title of theory. There's proofs that are called many things, a "theorem" is the gold star of these. It does NOT mean "in theory" or "theoretically", it is literally "THE THEOREM OF THE BEGINNING OF THE UNIVERSE: Big Bang" The most widely accepted version of events that science has.
QUANTUM TUNNELING: I feel like was done a very disservice when mentioned. Yes you can extrapolate this to the macro world and say "there is an insanely small probability i could teleport to over there" but not really. However, this shit does happen with electrons ALL THE TIME, it's a real thing that happens. Just not on the macro level. (which does have a line btw, things below the planck's mass. just a mass number, below which quantum effects start to be observed). You can literally set up a box that has "infinite depth" to try and trap an electron, or since it's an electron what we are really talking about is "infinite voltage/electricity", so it should be impossible for an electrical thing to overcome an infinite "wall" of electricity right? Wrong. Electrons get past the wall all the time, because of quantum tunneling. And this effect is very very very necessary for things to work the way they do haha
This last point is probably my biggest issue, continues into the trigger warning section and as a result I can't even bother to go into that lol
SCALE AT WHICH QM STOPS: no!! this is just wrong. no no no. Quantum effects are more than just wavefunctions. If the particle is observed, cool, there's still weird stuff going on. Like the fact that we can't measure 2 properties with accuracy (commonly called the Heisenberg Uncertainty principle). The "proof" of QM fundamentally lies on the fact that if you take all the weird shit, blow it up to the scale at which we live in, the equations/functions everything reverts to what we are used to in that "limit". There is a point at which quantum effect tend to take over, as I mentioned above (planck's mass) but QM lives at all scales, it just has such a massive diminishing effect at higher scales we don't see it. You CAN use quantum mechanic equations at our scale, and they will spit out the same result you would expect using a much easier method. This is a property that every. single. thing. in physics has to have; it all has to coexist. There ARE spots at which we don't know the answer, unsolved problems of unifying models of the universe. But this is not one of them, QM is one of the most tested theories and it holds up so strongly that to say it doesn't apply at a certain point is simply untrue. It does. The effects are just insanely small.
Exactly like time dilation at speeds close to that of light, I think a lot of people interested in this might know about that. Time slows down if you get close to the speed of light, and it happens at ALL speeds, but the effects are so small at the speed we go at you don't notice. Same is true for QM, if that was NOT true, it would not be accepted as a framework of the "tiny" universe because it would have tons of contradictions!
A massive issue with this stuff, which I think is basically always overlooked, is math. If you don't know the math behind this stuff, please do not think you can gain more and more understanding of it. That's like saying you are going to learn Greek without learning the Greek alphabet. I see so many people trying to explain physics, particularly QM, that clearly do not know the math behind it, and it's just painful. If you want a better understanding awesome, you need to learn the math. *Then* you could actually comprehend a "definition" of the wavefunction, without it you really can't, but you can understand what it tells us physically like I talked about.
Lastly, I'm not saying don't learn about this stuff without math, it's always great fun to talk about it conceptually, but just know there is a limit to your understanding because of that. So if you get the urge to label things as "mystical" or "BS" without knowing the math...ya, please stop. Not to say that this podcast did that, it did not, but there was definitely some things that were...overlooked. Besides that last point, I do get it though. It's just a jumping off point etc, but that last thing was just an actual big error in my opinion.
At 1:05:44 there's actually a cat in the background. (It's alive)
I got distracted by this too
superposition: i understand this but i also don’t get it at all
(IK that’s not how that works at all but also i don’t)
Am I the only one who is eager to know the titles of the books to which Cory refers during the episodes now and then?
They’re in the description!
maybe the question of when do you stop being the same person is kind of like incest. i mean when is it no longer considered insest. i think it is cousins four times removed, so maybe a universe four times over from the one we are currently in is no longer us. i don’t know
Wait, does that mean there could be black holes being created and destroyed all the time around us?
I am *confusion*
Scientists really know how to overcomplicate things...
Will this give me an existential crisis? I am a very paranoid person so I will not be watching this unless someone responds telling me that it's not gonna scare me
I thought this episode was much less existential-crisis-y than the previous one that Luke hosted on a similar topic (I can't remember what that episode was called, sorry). In Luke's episode, he discusses the very fabric of consciousness, in this episode they mention that briefly in passing a few times, but the main focus is on explaining sub-atomic particles and how changes in the behavior of those particles is used to theorize the existence of many universes. There is not as much focus on the observer in this episode. At the very end 1:04:00 Corry asks a question that I would recomend you skip if that sort of thing upsets you, but in my opinion, the rest of the episode was fine. :)
@@coralovesnature thank you I will now watch the episode 🙂
@@minksrule2196 How did it go? Did you feel okay watching it?
@@coralovesnature I felt ok watching it but I had to keep myself busy afterwards by cleaning the bathrooms then drinking tea with my parents because if I hadn't done that I would've sat in the hammock on my own and forgotten about all the people in my life and had an existential crisis. At the end of the day I came to the conclusion that we just don't know and it doesn't really matter that much and Noah helped by saying that he doesn't really care and that made me realise that not really caring about it is ok. It's interesting though so I think I might borrow a book about quantum physics from the library so I can learn more
Noah Finnce is pie, mmhmmmmm Piieeee.
I don't think humans were supposed to figure this out
i'm so confused uhhhhhh
Bro rn this has 666 veiws
Crazy bro
That's stupid superstition
I'm a left-handed and I am offended!
Can't believe I watched the whole think now I'm bored
no now you are SMART
Noah I swear I learn more from these podcasts than I do from school so you’re not wrong :))
Just a few episodes ago, they talked about misophonia, yet this one they make super disgusting mouth noises for fun? Come on guys, that was horrible and not funny.
Thanks for the heads up! 😂 I have misophonia and hate mouth sounds!
47:35 nah man it’s just rng