Neil deGrasse Tyson Explains Dimensions
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- Опубликовано: 12 май 2024
- What’s up with the fourth dimension? Neil deGrasse Tyson and Chuck Nice explore the dimensions, worldlines, and what it would mean to be 4D.
Learn about time and space and how we navigate through both. What would a 2D world be like for two-dimensional people? We break down what it's like for 3D beings to interact with the second dimension and what it would be like for 4D beings to interact with the third dimension. Plus, we discuss flying cars and whether we already have them.
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Science meets pop culture on StarTalk! Astrophysicist & Hayden Planetarium director Neil deGrasse Tyson, his comic co-hosts, guest celebrities & scientists discuss astronomy, physics, and everything else about life in the universe. Keep Looking Up!
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00:00 - Introduction: Dimensions
3:00 - Dimensional Surgery & Looking at a 2D World
6:20 - Escaping 2D & 3D Prison
8:10 - Even Higher Dimensions
9:21 - Do We Already Have Flying Cars? 
Наука
What do you wanna see Neil explain next!?
I don't like the new musical intro & new channel image
Fluid Dynamics
Please do an explainer on black hole collisions. What form of energy would be released if the black holes weren't consuming anything prior yo the collision?
Can Neil explain do scientists have any idea how does Universe looks like now in realtime. Are there some theories and such?
Could time travel work if you travel between planets. Sorry this sounds absolutely insane but maybe it could work
I never know what I want explained until I hear him explain it.
The magic of learning.
@@NousTrapper Well, obviously! "NDT" isn't all-knowing.
The acronym of the word God is your next
Grandest
Of
Density
You all are 4 dimensional consciousness , you create machines that do this that look into the body's without physically touching you, and once you have the information, you can then take the next step in the repair of your body from 4th dimensional mind complex, and If you really want this try participating is a ayahuasca spiritual ceremony and have your 4th dimensional consciousness instantly open up to you , at first you might eather freak out or just be calm , you best be just calm and chill so you can gain insight in the truth of the matter !
@@Jay_Loinfact he spews nothing but propaganda
I like Chuck's closing statement... _"In another dimension, we'd have all the time in the world."_ ...That is profoundly astute.
All the time in the universe would be more accurate.
Louis Armstrong had it.
"We are prisoners of the present.. forever transitioning between an inaccessible past and unknowable future". 🔥
This video was brilliant. The writing, visuals, and audio were all masterfully done. Thank you 🪐✨
agreed! so helpful and simple. appreciate it so much
The ability to turn a complex concept to a comprehensible one is truly astounding. Such a master teacher.
The Master is one who never gets bored.
Nah he dropped the ball on this one. A 4th dimensional being would be able to see our entire timeline; past, present, and future. Imagine a huge tower with and seeing time spiralling all around the tower, that's what a 4th dimensional being would see.
@@astralmindny9055 He practically covers the same exact thing in this video 7:30
The same exact lesson was taught to him by his very own teacher Carl Sagan in the original Cosmos series a long time ago, when I was a kid and watched it on the TV.
Carl Sagan explained it first like this, but I like the adaption and elevation to another level.
Search Carl Sagan + Flatland. There are videos of himself explaining this, or if you prefer books, the name is Cosmos
10:28 "In another dimension, we would have all the time in the world"
That's some lowkey 🔥🔥
SILLY INVALID SPECULATION ! - just stop already.....
1. Time is a constant NOT a "dimension" & all he is repeating is "no 2 objects can occupy the same space at the same time". The only 'dimensional' aspect of time is perception RELATIVE VIEWPOINT.
There is only evidence that time exists in the present. 'Future Time' is non-existent , as a "thing", but (an infinite?) a number of possible outcomes of present time. Once a moment in time PASSES it no longer exists.
2. A 1 or 2 dimensional being has no 3 dimensional brain or eye & therefore could observe nothing !
..... Imagine a 2 dimensional piece of paper that has no thickness. Shrink the image of the paper in your mind until it has NO DEPTH & realize that the resultant 'thickness' of the page of paper needs to be infinitely thin to the point of, what? = NON-EXISTENCE.
- A 2 dimensional object could, on that same infinitely thin plane, exist alongside another 2 dimensional object BUT they couldn't - they'd have to share the same space at the same time - WHY? - because how do two objects in a 2 dimensional plane bump into each other if they have no thickness ?!!!!
- A 1 dimensional object or being would would *COMPLETELY OCCUPY IT'S UNIVERSE*. It would *COMPLETELY OCCUPY IT'S UNIVERSE*. There would be no room for a second object.
- A 4 dimensional object would have to REVERT BACK INTO ITSELF...
This stuff is silly - It's like taking the cardinal directions (N,S,E & W) and claiming that NW or SE are 'other dimensions'.
SAD deGrasse (AND Sagan AND Hawking..) never actually thought this one through thoroughly enough
SORRY FOLKS, but the probability of your beloved "4th dimension" existing is most probably NIL
Oh yeah it's a good one🤌
Then we would have overpopulation and everyone born would not die unless killed you get to hang out with great great great great grandparents?
I don't think you Gen zs know what low key means.
It's a small world but, even if I had all the time in the world, I wouldn't want to have to paint it.
Love it! To go from not understanding to understanding. Lightbulbs turned on. Thanks Neil, science, sense, humor all at once.
This is a great simplified teaching on dimensions, love it!
2:50 Chuck's got a point, in the digital space people need to meet at the same time, but also in the same digital location. Whether its a URL address or some server, the computer and its code is just an extension of your body at that point. An extension that can interact with the digital space.
Yes. The point is prematurely developed, given the complications of appearing on a device such that one might converse with you in real time. It might not even be you, but the receiver's brain hasn't processed that it isn't you yet due to whatever complications could have occurred (lag, disconnect, wrong recipient of message, AI representation, hacked, held at gunpoint just out of sight of the recording, etc).
Time zones are different. Time is relative to global position. Nighttime in China is daytime and possibly the next day on the other side of the globe.
@@RhekonThat can’t be explained mathematically
As a programmer you have no idea what you're talking about, a video call is two people sending dozens of pictures of themselves to the other as fast as possible continuously. So maybe you can say we're using information to cheat the 4th dimension a bit but not physically
Probably interacting with a bunch of AI by now so I guess I will shut my phone and self reflect
Wow! That was very informative! Answered questions I had in preparations and advanced testing of delicate components before launch time! You guys got this!
Thank you, Leo
Neil...you are the best scientist of our time for us laymen. You break it down for us and make it not only mentally digestible, but entertaining. Thank you 🙏
He was for me until I found out he went to epstein Island a few times.....
@@scorps192sources? Where did u read this? Tragic, it is everybody!
Does anyone one else get the feeling that Neil deGrasse Tyson is possible a truly brilliant stoner ... Bc this is the kinda stuff that pot heads contemplate.
It's the only way I can understand it completely.
We all ponder my friend. The only difference is how much work we put on into finding the answer.
He is a stoner, smokes with Joe Rogan
He’s an astrophysicist lmao
In this video there was definitely a point I thought hmm he seems a little high to me... so ya I do get that feeling lol...
Neil! I just want to comment that one time my mother heard you say that colds and flu is caused by viruses not by temperature (cold weather) and in her eyes it completely discredited you as a person of science to her and I find it exponentially hilarious. I love and admire your work. Thanks for existing!
Well yea but cold weather does thin or dry out the protective membranes for some people and that let's the viruses attacc! (correlation not causation)
Viruses increase temperature of our body
They're both partially correct. The cold weakens the membrane in the nose, making it easier for viruses to enter and make you sick.
Cold weather does not make you sick it's not possible sorry..
@@JF-hv2bl no wrong.. cold weather doesnt make you sick only viruses and bacteria can.. why do you think hospitals are always cold? Doctors literally recommend when you're sick even if you are cold to not turn the heat up in your house... viruses and bacteria thrive in warmer environments.. also I lived in Russia for 10 years and they have strong immune systems cause they make their kids take ice baths at home and do polar plunges literally at school.. in Sweden they leave newborn babies outside restaurants and coffee shops in their stroller all by themselves In cold weather. You should definitely look into it. Even here in America football players have ice baths in their locker rooms after practice and games.
I’ve been trying to wrap my head around the 4th dimension explanation for the longest time and this video is the closest I’ve gotten to truly grasping it! So cool! Thanks Neil!
what would a 4 d being look like? if time is the 4th dimension does that mean they have the dimension of time to expand in? the can expand and move through time? but does the time let you to enter inside a human body without interacting with the skin? aren't 4 dimensional beings solid? does the 4 th dimensional make the world of magic🤩🤩
How did I discover this channel just today? Subscribed immediately.
"You have a very low bar for what's called a flying car." We can always count on Chuck.
Because Chuck is funny and smarter.
"We are prisoneres of the present forever transitioning between our inaccesseible past and an unknown future..." What a beautiful thought...and as always just amzing episode...fun and learn both😊😊👌👌Lots of love and respect from India Neil and chuck...
Yeah, I wonder where the line came from.
I heard that first in a Star Trek Enterprise episode.
He actually uses that line quite a bit. Tweeted it 4 years ago lol
🗿☯
Except that none of us share the same "now." We all have individual "nows."
since we're stuck in this 4dimensional reality, a 5dimensional being would see us as our whole lifespans
Great video! This is getting super interesting!
Brilliant! Will share this with my students
really?
As a bicycle commuter who has given a great deal of thought to traffic interaction, the image of me and a truck occupying the same space at (hopefully) different times occurred to me long ago.
Many cyclists want separated bike infrastructure to protect us from motor traffic. But the intersections are always the hardest part. By definition, intersections are where people’s world lines can intersect on a road. So if you want to separate bikes and cars at intersections, there are only two ways: space or time. Either add a third physical dimension in the form of an overpass or tunnel, or control the time dimension with a separate green phase. That’s it.
Maybe raised round a bouts over intersections?
(Spitball idea, I'm not an engineer 😅)
@@TragoudistrosMPHDoing that where? Over every intersection everywhere? And who’s paying for it??
How about all bicyclists submit an additional voluntary tax and that can be used for your infrastructure.
You need a hover bike
Fool if u wud cycle on indian potholed roads, with air pollution, u wudnt have said that 😂😂😂😂 of traffic
“We are all inmortal spirituals beings living a human experience “. Nice episode !🤙
Immortal spiritual beings
Indeed, the name is soul
@@LanesrafanTV Soul is life + body = consciousness. People keep getting soul and spirit mixed up.
I like to consider Spirit as the "I". Who thinks the thoughts? Feels the sensations? acts the acts? The spirit does, beyond that is a topic for a larger platfrom than comments. Thank you for your time and sharing you personal knowledge with us.
@@gmork1090 I don't think soul's exist. But Dark Souls does, is fun to play 👍🏻
You two always bring a smile to my face ❤
Wow this is so well explained! Thank you!
Chuck outsmarting Neil by pointing out virtual presence! Loved the way Neil looked, he surely didn't expect that!
Neil didn't expect it.
No one expects complete nonsense. This doesn't make it smart.
@@broomemike1 Just it was not nonsense, virtual presence implies you have to be in a place with a camera pointed at you and a microphone to capture your sound.
"Virtual" is the key word. They are not in the same time and place. It gives the illusion of being at the same place and time. If a meteor comes crashing down on one, the other is not harmed.
Its not totally nonsense, the data being transferred from the Zoom servers have to interest at the same place and time for minimal latency between callers on Zoom.@broomemike1
@@triplec8375 But it still has interesting implications that's the thing. Even if they're not in the same place, they are indeed sharing a virtual space, which is still a place.
This is why I love "Flatland" by Edwin Abbott. That was the first time I could ALMOST get a feel for a 4D being's view of the world.
Never read the book but loved the animated movie.
I remember reading “Flatland” (for the first time) when I was just a child. And it let me to the concept of the HyperCube.
One of the best books I read in school, hands down.
I remember when Picard dealt with 2-D "beings". I found Data's intel rather interesting.
He mentioned the Enterprise D's forward sensors could not detect them, and he used additional probes to scan.
And this now links my memory to scanning space back in Eve Online using multiple probes, which scan in a sphere.
Each sphere covers an area, and when the scans overlap, you get interesting results.
Move them around alot, changing scan strength, etc.. Generally, the more probes,.. the better. But not needed.
In space, I suppose you could find something with just one probe, but it's going to take a very VERY long time.
But when your using 3, 4, 6, or even 8, your covering tons more. Fun stuff.
Great explanation Mr. Neil! We must not also forget that time is relative. Each of us experiences time differently, depending on the level of vibration we are in and vibration consists of our memories, thoughts, emotions, beliefs, behavior, and traits which can be characterized as either good or bad. Higher vibration = empathy, compassion, kindness, transparency. Lower vibration = everything that is opposite to the ones mentioned above. 🙂 Thanks a lot for your video, Mr. Neil. 4D surgery, that's an amazing idea.
"very low bar" I was thinking the same haha. I agree with Neil in that the subway and the cars on an overpass are existing below or above the original flow of traffic, but all of those vehicles can still only exhibit two-dimensional travel. the cars on the overpass aren't flying, they're just traveling on a parallel planar surface. and of course, the two-dimensional travel I mentioned isn't truly two-dimensional, because vehicles *can* travel up and down as long as the surface they are traveling on curves up or down, though we wouldn't consider these vehicles to be flying either.
I don't think I've watched any videos from this channel before, I'm glad I stumbled across this one. a little mental stimulation on a sleepy Friday afternoon at work has been quite welcome!
Same like we both sleep at the same time but you sleep downstairs or a double decker bed..
keyword is evoke: multiple objects sharing the same 2D space ;)
That's pretty much what airplanes do, since they occupy the same dimension as everything else. They go up, down, right, left, down-left, up-left, etc. and a helicopter can back up, but they're all limited by time. None of them can go up next week today. AND...none of them can travel at or over the speed of light.
@@markl2322 precisely! Now all we need is a fourth dimensional airplane that can travel from New York to Beijing through the center of the earth
😅
Summary
Forward and backwards = 1st dimension
Left and right = 2nd dimension
Up and down = 3rd dimension
In the Past and to the future = 4th dimension
In simpler medical terms
The length of the body = 1st dimension
The width of the body = 2nd dimension
The skin or outer layer = 3rd dimension
The ability to see through everything especially through the skin = 4th dimension.
This is the most beautiful thing I’ve learn from RUclips.
nah bro third dimenson is the what ur calling fourth in ur second example. actually i dont like to think of time as a dimension in the same way we mention the three dimensions. because why after the fourth dimension which is time for the fifth we go back to definning the fifth as 5d? to me time is a parlelle dimension across all spatial dimensions its what seperates the spaces and allows space to exist in the way we do
a 4d person can see us as 3d figures. this is a space influenced view based on perspectives so they cn see our insides yes. but who or which scientist can claim they also perceive our time. maybe they cant perceive time. as that would make time meaningless in essence. in the same way we see 2d figures as if in a single moment but add a timeline along the 2d figures and u realise they may not always be in that same 2d pose. at some point in the far future or far past they could have had their own adentures, before ending up in the state where we see them as 2d and stuck. jus like neil mentioned virtual meetings ur image may be projected to someone else to appear like its u there however its not really you. sorry for my long winded view
So this is why Astral travelers can't bring physical objects back from the some other place?
So in essence for every dimension you go up you perspective is always the previous. Watching all these Quantum mechanics vids I’ve thought what if the 3 dimensions of space describe an entanglement link it with time and you get a duration of that entanglement. It would be explain why nothing much goes on in space because space is too spread apart
actually, forw-back is 3-d, and 3rd is 1-D.... when writing on a surface you cannot go forward nor backwards per physics.. you can only go 2D [up-down + left-right]
4-d is your senses
What an amazing lesson 😀. Thank you both.
Very nice explanation🙏🙏🙏❤❤❤... I needed that.. 😮
At the age of 55, my mind is drawn toward the wonders of the universe. I would have to say you are one of the most intelligent human beings, yet you can convey your knowledge so that an average dope like myself can appreciate and almost comprehend it. I've just become a fan but I have yet to watch a boring podcast with Neal on or hosting. Wish I did not wait until so late in life to learn these fascinating facts about our universe.
Yeah very true. Only thing I really despise NDT for is that he's very arrogant, and loves attention and ESPECIALLY LOVES to cut people off and interrupt them. It's like in his head he's the main character and only what he says is interesting/matters . He needs to communicate better and let people talk more, you can tell he's very big headed which he shouldn't be that bad. Especially considering he's probably not even in the top 50 smartest people in the world. Sure he's an physicist or whatever but he's no Hawking, tesla, Einstein etc...
@@jojourias6766 So much hate bud , go to the 6th dimension , there's no love there so no such hate either!
Like they always say, It's never too late to start.
Stay alive at 55❤😂🎉🎉🎉🎉🎉
@@jojourias6766I don't think he is arrogant, I honestly see autism in his way of communicating. They interrupt a lot, take over a conversation and when you make a joke they laugh a little bit late, laugh a little too loud/hard, and immediately go into speaking normally and seriously, like the laugh wasn't genuine. I love him, his mind is brilliant.
2:47. Chuck's intervention, …silence. It was good to point it out about a virtual reality that is quite real in another "dimension". Nice.
Good point. How do we know that our "real" bodies aren't some advanced VR system... in the same way Neil's response about the digital world.
So I can talk to you at Starbucks tomorrow at noon through the phone I guess
The world line. Wow!
Great observation. Love it lol
(cricket chirps)
The way Chuck passively absorbs Neil’s science talk is probably the best part. They make a great pair lol
I haven’t seen this wonderful channel since before Covid!
I personally absolutely love the animations going over what you’re saying!
I loved the animations, but the background music was pretty distracting imo.
@@rikuddoubackground music was cute but not needed
Always fascinating and thought-provoking topics to enjoy. Thank you so much StarTalk!!
Carl Sagan explained this beautifully on Cosmos. Neil has done it brilliantly, too, though. Keep the great videos coming. Neil is a living legend.
Not gonna pretend I understood the whole dimensional surgery thing.
Basically in the 4th dimension you can see through everything
look up Abbot Abbot flatland. Or Mr. Quantum. It's easier to think about it as shapes.
Here's a thought experiment to make u understand...
Just draw a square on a paper and a stick figure near it...
Now draw an apple inside the square... See now the stick figure cannot see inside that square, it's like an opaque box to him but we can operate on that 2d apple as we wish without opening that square(box)....
I never ever get tired of these 2 gentlemen
Neil and Chuck never fail
So TRUE!!
They never fail the masses! There’s higher levels, don’t think that this is the end or the top of the tree ❤
@@FacesintheStone and those masses are each equal to their total energy divided by the speed of light, squared.
Levy never fails to, ah wait wrong channel
NEVER!!! I love these guys, StarTalk for life!
so teleportation would require access to the 4th dimension
Exactly 💯💯💯!
That was probably the best explanation I've heard of 4 dimensions
Flatland
I remember having to read that in my Linear Algebra class in college.
I was always doodling in class. While in Linear Algebra, I drew a 4th dimensional cube on a 2 dimensional surface (a piece of paper). It didn't look like what we typically think of as a cube. It looked like a spherical diamond with a lot of facets. It was actually pretty cool.
they teach that in linear algebra?
@@laplacesdemon82
No. They taught not only the Algebra of higher dimensions, they also taught the Geometry of those dimensions, starting with the 4th dimension.
So as a mental exercise, I drew a 4th dimensional cube based on 4th dimensional Geometry and the translations they taught about interpreting 4 dimensions into 3.
A teseract?
@@ResAK369
Not really.
A teseract is a pocket dimension, like that found in a TARDIS - smaller on the outside, bigger on the inside. Also like a Bag of Holding in D&D (which they totally ripped off in the 7th Harry Potter movie by way of Hermione's bag), the Weasley's tent at the International Quidich Match, or Superman's Fortress of Solitude in the New 52 iteration of that structure (it was a metallic sphere, about the size of the Daily Planet globe, located in the Arctic Circle).
If you want to get technical, a teseract is a sidereal space adjacent to ours, accessible through a shared interface (that can be portable or stationary, depending on its design and mathematical definition).
On the other hand, Linear Algebra explores dimensions outside our own three dimensions, expanding into a possibly infinite superstructure. (According to one theory, the structure of our universe has only eleven dimensions.)
Huh? How is it possible to draw a 4th Dimensional figure on a piece of paper? Were you deluded?
This video reminds me of one of my favorite books, "Flatland: A Romance of Many Dimensions" by Edwin A. Abbot, and all of this made me think about entangled particles, and how they could defy our notion of being close, acting as they really were, when they are instead so distant. Are they maybe close in another inaccessible (to us) dimension?
Or we share the same dimensions as the entangled particles, but we are very thin in that dimension; we are like people living on a sheet of paper, while entangled particles can move as they want in that dimension.
Amazing explanation ❤
I love him! He fascinates me. I could listen to him lecture for hours! ❤😊
You can't fathom the enormity of how much I love this podcast.
One of the earliest books I read which I can still remember was called startalk (I don't know if it's the only startalk book or not) and I just recently found it again, Neil you have been an inspiration to me since I was a child, thank you for everything you do.
so 4d is just Minecraft spectator mode
More like mix of spectate and creative
whatever that is
@@urrrccckostan with the given context I have deduced it to be some sort of mode in Minecraft the hit video game where one is able to spectate
Actually probably more like "Click" where u can move in space AND time at will, just without the restrictions and side effects
No the 4th dimension is time
I love these guys 😅entertaining energy hehe & informative content
Thanks lads struggling to understand this correctly for years, this helped a lot and pleasure to hear you both. Subbed and shared xo
2:44 @Chuck, on the live Zoom call, you are kind of in a state of #superposition; existing in 2 spaces (digital & physical) simultaneously. So, you made a good point/observation there, sir.🫡
Perhaps we need to start viewing the online space as a dimension (a virtual one), which essentially would make us 4th dimensional beings even if the other dimension is one we created.
Online gaming
That is the most interesting and fun explanation of hire dimensions I've ever heard
This is one of the simplest explainations i heard on dimensions 👌👌
This is something that I've been talking about for many years. To see Neil finally tackling this aspect is really encouraging!
😂😂😂😂😂😂😂😂😂. I hope this is a joke unless your younger and or don't have time to see he's just an implant for the simple minded.
@@jonathant926you’re a yutz.
About 35 years ago, I watched a lecture given by Thomas Banchoff. He had a series of computer generated films (really a big deal at the time end of the 1980ies!), which were 2+1 dimensional projections (two dimensional plus time) of movements in higher dimensions (mostly 4+1, but also some 5+1). What really impressed me at the time was that after watching them for a while, you really had some kind of four dimensional vision. Seeing a 4-cube rotating appeared no longer as some flattening and morphing of interlocked 3-cubes, but became a fluent movement of a single body in four dimensions.
So my impression at the time was: We would be able to see four dimensions, we just don't get the right stimulus for our eyes and brains to process.
I love this idea. So in a way we could all become 4th dimensional beings but because we do not ever see 4th dimensional things our brains do not know how to achieve it. You can not do things you do not know you can do unless somehow you come across it like staring at a 4th dimensional object unlocking the concept to your brain. So interesting.
SILLY INVALID SPECULATION ! - just stop already.....
1. Time is a constant NOT a "dimension" & all he is repeating is "no 2 objects can occupy the same space at the same time". The only 'dimensional' aspect of time is perception RELATIVE VIEWPOINT.
There is only evidence that time exists in the present. 'Future Time' is non-existent , as a "thing", but (an infinite?) a number of possible outcomes of present time. Once a moment in time PASSES it no longer exists.
2. A 1 or 2 dimensional being has no 3 dimensional brain or eye & therefore could observe nothing !
..... Imagine a 2 dimensional piece of paper that has no thickness. Shrink the image of the paper in your mind until it has NO DEPTH & realize that the resultant 'thickness' of the page of paper needs to be infinitely thin to the point of, what? = NON-EXISTENCE.
- A 2 dimensional object could, on that same infinitely thin plane, exist alongside another 2 dimensional object BUT they couldn't - they'd have to share the same space at the same time - WHY? - because how do two objects in a 2 dimensional plane bump into each other if they have no thickness ?!!!!
- A 1 dimensional object or being would would *COMPLETELY OCCUPY IT'S UNIVERSE*. It would *COMPLETELY OCCUPY IT'S UNIVERSE*. There would be no room for a second object.
- A 4 dimensional object would have to REVERT BACK INTO ITSELF...
This stuff is silly - It's like taking the cardinal directions (N,S,E & W) and claiming that NW or SE are 'other dimensions'.
SAD deGrasse (AND Sagan AND Hawking..) never actually thought this one through thoroughly enough
SORRY FOLKS, but the probability of your beloved "4th dimension" existing is most probably NIL
Do you happen to know if the films are on RUclips? I’d love to learn how different dimensions might look like
@@TJS0610 Not exactly. It is more that our perception apparatus is very adaptive and will try to make a clue out of everything it gets. If we walk around with prism glasses which turn our view onto the world upside down, at first, we are confused, but after some time, we see the world normally again and ignore the upside-down. The same happens with 4D space. While we are confused at first, after some time, our brain interprets the motion in the most efficient way, e.g. it does not see morphing shapes, but a single, fixed shape which is revolving, which takes much less brain power to process.
@@reyariass Not the films by themselves, but there are a few lectures by Thomas Banchoff on RUclips, which feature some of the films.
Reminds me of Carl Sagan explaining Flatland, so awesome and very informative!
This is really interesting and he explains it so well 😊
One small suggestion to the editing and animation team:
This time the animations wasn't able to capture what Neil was saying accurately.
Especially in regards to seeing a 2D body in a 2D world and the "dimensional" surgery.
Either they didn't understand what Neil was saying or they don't have the technical know-how to make it.
My bet is on the former, because they seem very skilled otherwise.
Lots of love to Neil and Chuck and the team of StarTalk.
You all make my day a 100 times better ❤
Thank you! I was thinking the same thing.
Dont blame. The animation has been made by a 12 years old ( Probably)
thank you that is where I am stuck... and i am a visual person so I do not get how as 3 dimensional being we might be able to do a "dimensional surgery" without cutting... any help?
@@valentinachiricallo3476 I get what you are saying and that was not a great example that Neil used to illustrate the difference between 2D and 3D. You can't really "reach in" as an overlap since there is not another plane. 1D is a slice of 2D, and 2D is a slice of 3D. They would have to come in from the side because objects are flat and would bump into each other. I guess the hands would have to come in from the side pushing the flat tools and do some pacman type cuts and somehow remove the pieces of guts. Cutting the guy open in the first place has it's own issues because there isn't any movement in a 2D plane. You don't get movement until 4D when you add "time". A 1D plane is looking at the edge of a single dot. A 2D plane is looking at the edge of your cut open guy so you would be able to see not only the edge of a single dot but the edges of all the other shapes across the plane. Some will be longer or shorter than others and be different colors. STNG did a great episode on a 2D universe.
I probably should have just stopped at, "that was not a great example that Neil used."
C'mon #NeildeGrasseTyson give some simpler examples!
A 4-dimensional person could kick a 3-dimensional dude literally IN the balls.
I'm so Loving This!!!! Thank you Neil & Chuck!!💛💫💕👍👍
What an amazing fkn segment that I never knew I needed. Oh yea liked and subscribed instantly.
These two compliment each other so much! Humor and intelligence. From both guys! Love em!!
Dr. Tyson, you always find a way to blow my mind. Thank you for this new knowledge!
That was a pretty awesome explanation! I always wondered what they meant by time being the 4th dimension. It finally makes sense.
It's correct in language use. But when we say 4d we obviously mean 4 spatial dimensions outside of time.
5d in your notation.
2d beings can also have time. Would be dumb for em to say that is the 3rd dimension because they can't perceive the 3rd spatial dimension
Neil kind of dropped the ball at the end of this one w/ the jail/time analogy.. He was talking about spacial dimensions, then right at the end jumped to talking about time as a dimension, which is not a spacial dimension! He should have talked about a tesseract or other 4ths spacial dimension ideas, to continue his line of thought.. But went to that time comment... Really strange. And clearly confused a lot of people who are not educated about this stuff.
exactly my thoughts. I actually dont like to think of time as a dimension in the same way we mention the three dimensions. and i wonder why many scientists make this argument.
because why after the fourth dimension, which is time for the fifth? we go back to definning the fifth as 5d? to me time is a parlelle dimension across all spatial dimensions its what seperates the spaces and allows space to exist in the way wepercieve it
4d person can see us as 3d figures. this is a perceptation based on their axioms and perception and based on perspectives so they cn see our insides yes. But wwhy claim they also perceive our time. maybe they cant perceive time. as that would make time meaningless in essence. in the same way we see 2d figures as if in a single moment but add a timeline along the 2d figures and u realise tthey could experencieng their own time and reality in a way we we as 3d beings dont. At some point in the far future or far past they could have had their own adentures, before ending up in the state where we see them as 2d and stuck. jus like neil mentioned virtual meetings ur image may be projected to someone else to appear like its u there however its not really you being projected there. sorry for my long winded view
“OK, let’s keep talking about dimensions, ready!” 😂😂 that has to be the most funnest tag lines I have ever heard on star talk. 2:43
My friend and I discussed this topic all day long, I'm glad we weren't far off the distinctions between dimensions
Thanks, Gentlemen! Superb as always.
Finally the ELI5 version!!! All the other explanations are as if you already understand dimensions. Love the way Neil explains this here because I've watched countless of his interviews and this is the best yet.
I audibly said “oooooooooooooh” when you explained unraveling a 4D knot….you guys rock
Teachers are so very important, excited to learn is a gift very few have to give
Thank you Neil for breaking that down, I watched another video which lead to more questions and then stumbled across this video .. The first one NOW makes sense !!
Gotta love this man and his passion for passing on knowledge
Strange, as it is complete nonsense what he is saying!
@pkaramol Neil is pretty good too btw 😉
@@DodgyDaveGTX 😅
Passion maybe but not ability. None of this is true.
@@BariumCobaltNitrog3n Exactly!
I have trouble fully accepting time as the 4th dimension. If a 4D hypersphere was to cross through our dimension, you would see a sphere growing and shrinking. Similar to an MRI scan, which has 2D slices which represent a 3D object. A way you can understand more is by using shadows of an object. Take a hollow cube, which just has edges and vertices, but no faces, its shadow would show a tesseract, but a 2D representation of it. That's why I find shadows very interesting because you're taking a 3D object, to create a 2D representation of a 4D object 😂 But none of this uses any time whatsoever. Time could possibly be a 5th dimension, but in my opinion, size/scale is the 4th dimension. This could still be interesting because say you have a chocolate bar, and you pass that through the 4th dimension, you can increase its size and have a chocolate bar that lasts virtually forever (before it goes off). I suggest you play around with hollow or transparent objects with shadows, and it'll trip you out lol
Loved it!
I too believe Chuck has a point. If zoom is a platform where we all meet, than that's our virtual location in the virtual space.Also, we are in different time zones , so we are meeting at relative times not the same time. Which might also mean that we are not meeting at all. We are just responding to each other's recorded audio-visual representation in almost real time. I am saying this is a a topic for one whole episode, it's up to the great minds to take it up.
Time zones are just relative to the sun. People on the other side of the world from me are still existing in the same moment in time, just reckoned differently.
Nope. You and chuck are wrong. gregavision is right.
They see us living our lives foolishly.
amazing! Thank you
Neil and Chuck both awesome, keep it up!
@StarTalk @Neil Sir, can we consider the possibility that time is not the 4th dimension? My thinking is that time is a dimension that can be applied right from the very first axis/dimension. It is globally applicable. In other words, even if we were two dimensional beings, time could've been a dimension that can get applied. Also, a majority of things that happen in nature get unanswered if time becomes the 4th dimension. So, it would be great if you could share some thoughts on how time was decided as the 4th dimension. Just curious to know.
Thank you for sharing this video. Beautifully explained, as always.
Exactly my thoughts. I actually dont like to think of time as a dimension in the same way we mention the three dimensions. and i wonder why many scientists make this argument.
because why after the fourth dimension, which is time for the fifth? we go back to definning the fifth as 5d? to me time is a parlelle dimension across all spatial dimensions its what seperates the spaces and allows space to exist in the way wepercieve it
4d person can see us as 3d figures. this is a perceptation based on their axioms and perception and based on perspectives so they cn see our insides yes. But wwhy claim they also perceive our time. maybe they cant perceive time. as that would make time meaningless in essence. in the same way we see 2d figures as if in a single moment but add a timeline along the 2d figures and u realise tthey could experencieng their own time and reality in a way we we as 3d beings dont. At some point in the far future or far past they could have had their own adentures, before ending up in the state where we see them as 2d and stuck. jus like neil mentioned virtual meetings ur image may be projected to someone else to appear like its u there however its not really you being projected there. sorry for my long winded view
Exactly what i think
I also agree, I think Time is higher than the 4th dimension. or if Time is a dimension concept at all. its hard to imagine if Time doesn't exist in any/all dimensions
@@HomoSapienMan Great thinking. 👍
@@3Prism hm.. haven't yet thought about the possibility that time cannot be a dimension. I always get this sense that time always exists. Whether it's a dimension in itself or something more than that is something that we could explore more.
The ending... Splendid!!
Every time I listen to Neil, I feel a little bit more awesome. Thanks bruh.
I need to know mister Tyson... Would the experience of moving in an out of time so to speak or from one point to another to the future or to the past to get out of whatever bind... Or maybe... Anyway would those around someone traversing the timeline like that... Would they be aware of whatever danger was avoided or would they be oblivious... If they were oblivious would they only become aware if they were brought forward or back with the 4th dementional traveler and if that made them aware would they too be 4th dementional travelers aswell?
Absolutely Love NGT! and StarTalk. Watching this video, I'm left with the question: 8:47 in 2 dimensions, is a loop in a string even possible? Wouldn't it require a change in height (z direction) in order to pass over itself?
Yes. This is entertainment, not science.
Yes, Just imagine the normal 3D loop in 2D, it will look like a string that has a circle in it and you cannot untangle it. That is why Neil was saying that to a 2 dimensional being it will be imposible to untangle the string, but only a 3D being can see the higher level to which part of the string is passing through and they can just pull it on the edges and it will be untangled. So in short, it is possible just dont visualise it in 3D, look at it in 2D
6:35 I would posit that the "present" does not actually exsist. If you really think about it, there is only the past and the future. We only have the "present" in the colloquial sense.
That was a lot of fun!!!
I thought our comprehension of the 4th dimension and higher dimensions we’re referring to *spacial* dimensions exclusively. For instance, in 4th dimensional space there is still an additional dimension of time. So any higher dimension is always +1 (time). Certainly time can be thought of as a dimension, and Neil does a great job here of explaining its importance, but I think it’s important to differentiate what we’re referring to, spatial vs temporal.
If beings that are 2D have even the thickness of on atom, then they would be 3 demintional. Nothing can be 2D unless it doesn't have any thickness at all. Is there any matter that doesn't have any thickness?
The Rock: IT DOESN'T MATTER!!!!
3d entities experience everything as things bounded by two dimensions, thus we having a description of thick can prefer a 3d idea but then in a 2d world, atoms and everything are experienced as being bounded by 1d entities rather than 2d as opposed to 3d entities
There would be thickness. But not observable to them.
Like there might be a dimension of atoms that we cannot currently see. Thus we precieve it to be 3D.
A 4D creature can mistakenly come to the same conclusion as you did....
I had a similar objection when Neil claimed that 2D beings could see each other’s edges. How could they see each other’s edges when their height is zero?
@JohnBrooking4 a 2d surface is bounded by two 1d elements which is a point, that's an edge. A flat surface still gas edges, however many edges is reliant on dimensions
Dr Tyson's delivery keep's me wanting to know more
This was why the movie Arrival clicked for me when i first saw it. They experience their life circularly all at once.
The Cephalopods were 4 dimensional beings. And they introduced their "language" (understanding of time as a language) to us
I can listen to him , Nielson all day! ❤
Love it, that was fascinating and funny talk on dimensions. Neil and Chuck always leaving us wanting more.
I dig this pick keep up the good work 🎉 definitely have to expand dimension physics into a full episode 💯
Okay so being in 4th dimm u are able to see all the layers of a person, from the skin onwards. That doesn’t mean u see them in different points of time. How do u reconcile the time part? If time goes by for all 1st, 2nd and 3rd dimm the same way, why does it change in 4th dimm?
Essentially, and simply, 4th dimensional creatures would have time control. So they would see a translucent being...as skin and our body parts are constructs developed by time. The prison analogy explains it as simply as that. You pick a time when you're either not put in prison or are released. They just never use the words "Time control" though thats what it is, theoretically. You'd could also just see through everyone and everything, and reach through objects.
How about while driving, at the exact same time I'm listening to a radio commercial about a company I hadn't heard of before, one of their company vans passes me by.
Or the exact same time I'm reading a specific word, that exact same word is spoken on the TV.
It happens to me all the time.
And sometimes....it's not just one word. It's the whole daggum sentence 😮
There are lots more synchronicities that happens to me.
Can you explain synchronicities please? Thank you 😊
Neil! I am convinced that time is a fourth dimensional property that permeates our 3d dimensional reality and we only see it passing because it cant be fully formed in our dimension. This suggests that the fourth dimension is infinate (time ceases to pass) Photons therefore are simply 1 giant 4d object intersecting our 3d realm, we can only see them as individual particles, so they appear to be moving, and limited in our dimension to the speed of light. (the maximum velocity our dimension can accept before collapsing into a lower, or breaking into a higher dimension) < is this plausabile?
One flaw, he said we will be a prisoner of the present. But there is nothing besides this ever-lasting moment which is NOW, ever is, and ever will be. Even if you go to the future or past you will still exist in this moment now, you cannot escape it, everything exists NOW.
only in this dimension, the next one up the past present and future all exist at once
That’s deep, dude. I agree.
@@DaysOfFunder nope, no matter what dimension, everything exists now, past and future are pure illusions.
So, you mean: the past present and future all exist at once, i.e the absence of time passing? @@SimplyNow
@@DaysOfFunder tell me, did you do something in your life which were not in this moment now? Time is an illusion, we have clock time here to better manage our daily life. To put this simply, imagine some beings in other dimensions and ask yourself, do they exist now or in some other now...there is difference now. Even the light that goes at unimaginable speed exists at this moment now. Your ego got attached to your memory and experiences at this moment, and your monkey mind is jumping to the past and future all the time, you neglect this moment, your ego loves the past and future, and your ego hates this moment. Did you read the book "The Power of Now"?
Go back and read "A Wrinkle In Time". I do not recall if it was ever mentioned what Dimension Mrs. Whatsit, Who, and Which were native too, but at one point Whatsit offhandedly mentions that they use the 5th Dimension to travel Spacetime.
Man these two men are genuinely hilarious together 🤣 nothing feels scripted or forced in any means lol. They aren't try hards, just for likes, views etc. I love this content.