Neil deGrasse Tyson Explains Dimensions

[@StarTalk]

What do you wanna see Neil explain next!?

[@marble25]

I don't like the new musical intro & new channel image

[@jambonejim1249]

Fluid Dynamics

[@Teqnyq]

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?

[@mr.aleximer]

Can Neil explain do scientists have any idea how does Universe looks like now in realtime. Are there some theories and such?

[@SeantheDracunyan76]

Could time travel work if you travel between planets. Sorry this sounds absolutely insane but maybe it could work

[@tonycole9620]

I never know what I want explained until I hear him explain it.

[@lekobiashvili945]

The magic of learning.

[@Jay_Lo]

​@@NousTrapper Well, obviously! "NDT" isn't all-knowing.

[@ronmerkus5941]

The acronym of the word God is your next Grandest Of Density

[@ronmerkus5941]

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 !

[@Lucidmindz888]

​@@Jay_Loinfact he spews nothing but propaganda

[@JanetStarChild]

I like Chuck's closing statement... _"In another dimension, we'd have all the time in the world."_ ...That is profoundly astute.

[@slimeyG]

All the time in the universe would be more accurate.

[@speakatron5634]

Louis Armstrong had it.

[@cosgroveme2489]

Tell me this dude doesn’t sound exactly like Joe Rogan. Except he’s the black version of

[@andrewyoonhobai8453]

this is the fun plane floor

[@A_Stereotypical_Heretic]

@@JanetStarChild and dumb

[@justyneddins2570]

"We are prisoners of the present.. forever transitioning between an inaccessible past and unknowable future". 🔥

[@joshuarodriguez8922]

this is dumb a dumb quote we are the NOW never prisoners

[@DJURBANBG]

Our mind is the only one, that is not trapped in the 3d dimension and laws of physics

[@alistersutherland3688]

@@DJURBANBG How do you know that with any certainty? And the fact is, our minds are trapped within this realm, at least physically. It is only our imaginations and ability of abstract thought that enables us to transcend it. But that doesn't mean we can escape it.

[@plty3931]

@@DJURBANBGdude who do you think you are 💀 Just go to bed already u sound tired

[@DJURBANBG]

@@alistersutherland3688 This is exactly what i am talking about. Our minds are trapped in this material world, but it depends on us to elevate our spirits and realise that this 3d matrix we are living in, is just something transient.

[@A87-p1l]

I’m not the smartest book on the shelf but it’s amazing how much you can understand if the right person explains it. It’s still a hard concept to grasp but I think I understood it as much as anyone could

[@Sorrel555]

The way Chuck passively absorbs Neil’s science talk is probably the best part. They make a great pair lol

[@EmilycheriHoeckele-tr3lk]

333

[@bobbybmerri3994]

They're both funny, but Chuck hits another level 🤣

[@SpirituallyAbstract]

Ikr i’m a new subscriber just based off their banter 🤣

[@caroline.saldanha]

The ability to turn a complex concept to a comprehensible one is truly astounding. Such a master teacher.

[@Noitisnt-ns7mo]

The Master is one who never gets bored.

[@astralmindny9055]

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.

[@Laikalister]

@@astralmindny9055 He practically covers the same exact thing in this video 7:30

[@dimitardimitrov7516]

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.

[@joestojanovic6613]

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

[@LittleTreeX]

An interesting concept they didn't touch on is this: 3 dimensional beings actually see in 2D. While we do perceive depth, consider that the images we see are much like that of a television screen, flat in 2D. In other words, we can't see what is behind something. A 2D being sees in 1D. A circle drawn on a page looking at a triangle would just see a line.

[@volpedo2000]

Exactly. 4D entities would be able to see all sides of 3D object at once.

[@rabidfollower]

Also, when a 2D person locks himself in a room, that "room" is just a rectangle surrounding him. Other 2D people can't enter the "room" because there is no way to get in with only two dimensions accessible. But a 3D person that has access to an extra dimension can just look at everything from above and can plainly see the rectangle AND the 2D person inside it. This is also why, in Dr. Tyson's example, that a 3D surgeon can see through a 2D person's innards.

[@Fozzy10XT]

Wait, so a fifth dimensional being can see all of time at once, but a fourth dimensional being can only travel through time?

[@volpedo2000]

@@Fozzy10XT No. We are talking about n-(spatial)dimensions

[@jayfor6591]

The depth you acknowledge we perceive is the third dimension. If we only saw in 2D we would not be able to see through glass or water, both examples of seeing behind something which is 3D. Even a line drawn on paper is 3D albeit with microscopic depth.

[@ItsNotJustRice]

Neil has his quarks but man is he good at teaching me stuff, ive struggled with visualizing the 4th deminsion for so long. This is crazy insightful.

[@HookBeak_66]

Always enjoy looking & listening to Neil as de Grasse always greener when he quarks. But then turned South, to the comments only to find aliens, redefining their "worldline" where others, carefully kerfuffling that which I thought I'd understood, or perhaps not or knots that don't exist in string theory.

[@LDavis]

10:28 "In another dimension, we would have all the time in the world" That's some lowkey 🔥🔥

[@fanaticatheist]

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

[@chrisboruch]

Oh yeah it's a good one🤌

[@NuhgGhkkfsghgyu]

Then we would have overpopulation and everyone born would not die unless killed you get to hang out with great great great great grandparents?

[@kt420ish]

I don't think you Gen zs know what low key means.

[@alfredo2506]

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.

[@eloydelosangelesleon2846]

There's a book called "Flatland" which explains this perfectly. It's a very short book from 1884. There"s been a "before" and an "after" for me comprehending the 4th dimension in space since I read it. I truly recommend it.

[@nimmamahi]

Thanks a lot for the recommendation!!

[@redsunflowers7322]

Michio Kaku also explains it very well. Look up "understanding the fourth dimension and beyond Michio Kaku" for another interesting video on the subject.

[@eroblern]

there is a full movie called flatland too its uploaded here in yt and apparently it is adapted from the book you mentioned

[@rhondarichoux4170]

That’s the book that inspired the “Dimension Boy” video.

[@earthwarriorangel]

This was the most delightful theoretical scientific back and forth, I was right there with you. Please do more metaphors and analogies to explain physics and astronomy because this was DELICIOUS it didn’t break my brain and it wasn’t pretentious

[@earthwarriorangel]

😂😂😂😂 “and in another dimension we would’ve had all the time in the world” I’m screaming

[@fourkos2407]

Very nice video. I'll definitely gonna watch it again last year

[@TheOficialShortKing]

Goated 4D comment

[@JesinikaSoram]

And luckily, can't find the video

[@sedefkarakas4804]

😂

[@kakobadarlin7293]

@@sedefkarakas4804 🤣

[@ramabelemodiga8404]

Bro commented from the 5th dimension

[@sydneyrennerthomas6629]

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 KZbin.

[@HomoSapienMan]

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

[@HomoSapienMan]

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

[@Fredrick-tu9ck]

So this is why Astral travelers can't bring physical objects back from the some other place?

[@Montycarlo10]

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

[@210shonuff]

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

[@mechasentai]

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!

[@Primaeva]

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)

[@toti_key]

Viruses increase temperature of our body

[@JF-hv2bl]

They're both partially correct. The cold weakens the membrane in the nose, making it easier for viruses to enter and make you sick.

[@Lizzybaby30500]

Cold weather does not make you sick it's not possible sorry..

[@Lizzybaby30500]

​@@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.

[@garybacica5709]

This is great stuff. And it's great that one of my favorite scientists has a show with one of my favorite radio personalities. Chuck is awesome!

[@AAWolf314]

Raise your hand when you’re trying to learn but halfway through you always get lost and then somehow come back and then get lost again and then they just make you laugh and you’re like I’m going to stick around because I think this show is great. Puts me in a good mood.❤

[@itsnevertoolatetodotherigh3271]

Guilty 😂😂😂too

[@EmilycheriHoeckele-tr3lk]

u didnt flipper side learn

[@autumnnoahlea5223]

you probably have ADHD 🥲

[@Fuzzysea693]

@@Tate525that had nothing to do with them not understanding the content.

[@LamontCalloway-i7u]

They really do influence a great mood

[@ericthompson3982]

"You have a very low bar for what's called a flying car." We can always count on Chuck.

[@BariumCobaltNitrog3n]

Because Chuck is funny and smarter.

[@richardamev1795]

😂

[@EmilycheriHoeckele-tr3lk]

then have tank start to fly war would be sik w/ it

[@ericthompson3982]

@@EmilycheriHoeckele-tr3lk What?

[@AsobiMedio]

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.

[@Rhekon]

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).

[@SirG.L.RIC.KAGE-Esq]

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.

[@arewecrazyyet]

@@RhekonThat can’t be explained mathematically

[@0x0michael]

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

[@georgiypotulov23]

Probably interacting with a bunch of AI by now so I guess I will shut my phone and self reflect

[@thesacredmom2784]

Neil's explanations are like this riddle: two legs sits on 3 legs holding one leg when in runs 4 legs who steals one leg causing 2 legs to throw 3 legs at 4 legs who drops one leg and runs away on 4 legs.

[@vegasthornton846]

Funny

[@Soulr]

This video was brilliant. The writing, visuals, and audio were all masterfully done. Thank you 🪐✨

[@twotwotwooo]

agreed! so helpful and simple. appreciate it so much

[@evelynclark3926]

Yes but why can't I access the fourth dimension? I can't see the fourth dimension.​@@twotwotwooo

[@twotwotwooo]

@@evelynclark3926 because your eyes are 3D constructs designed by a 3D world - meaning they can only see 3D, 2D, 1D. Enter the 4D in thought

[@kimmyymmik]

The other black guy talking is obnoxious and brings nothing to the table except interruptions. Let the man (Neil) talk!

[@hanstubben]

Chuck outsmarting Neil by pointing out virtual presence! Loved the way Neil looked, he surely didn't expect that!

[@broomemike1]

Neil didn't expect it. No one expects complete nonsense. This doesn't make it smart.

[@hanstubben]

@@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.

[@triplec8375]

"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.

[@cleats727]

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

[@danigar]

@@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.

[@rosemarywessel1294]

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.

[@bobbywise2313]

Never read the book but loved the animated movie.

[@ParkinT]

I remember reading “Flatland” (for the first time) when I was just a child. And it let me to the concept of the HyperCube.

[@domepiece11]

One of the best books I read in school, hands down.

[@Silentmjrt]

"Spaceland" by Rudy Rucker is a nice complement to Flatland.

[@greatdude7279]

Flatland is nonsense "imagine a 2d world created on 3d objects and because we can do 3d things on this 3d object that has 2d world printed on it ergo... we can expect x, y and z. actual 2d world would look different if it even exists and our interaction with it would be minimal if any.

[@joselondono]

2:48 almost got him, chuck!

[@eljefe3864]

Such a good question

[@JiNXX9500]

"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!

[@pishyp]

Same like we both sleep at the same time but you sleep downstairs or a double decker bed..

[@FsimulatorX]

keyword is evoke: multiple objects sharing the same 2D space ;)

[@markl2322]

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.

[@FsimulatorX]

@@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

[@tinaf7395]

😅

[@pranaydoshi6145]

"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...

[@broomemike1]

Yeah, I wonder where the line came from. I heard that first in a Star Trek Enterprise episode.

[@rustysalmonella7681]

He actually uses that line quite a bit. Tweeted it 4 years ago lol

[@silvercloud1641]

🗿☯

[@drbuckley1]

Except that none of us share the same "now." We all have individual "nows."

[@zabity]

since we're stuck in this 4dimensional reality, a 5dimensional being would see us as our whole lifespans

[@jafetcedeno1929]

“We are all inmortal spirituals beings living a human experience “. Nice episode !🤙

[@GlupShizo]

Immortal spiritual beings

[@Baibiboi]

Indeed, the name is soul

[@gmork1090]

@@Baibiboi Soul is life + body = consciousness. People keep getting soul and spirit mixed up.

[@Zoticuss89]

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.

[@emreeren13]

​@@gmork1090 I don't think soul's exist. But Dark Souls does, is fun to play 👍🏻

[@maishamaliha532]

Wowww!!!! It just blowed my mind!!! The way he described the 4th dimension was sooo fascinating!!!

[@primobolanmagazine5571]

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.

[@jojourias6766]

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...

[@thabisohitchdladla]

@@jojourias6766 So much hate bud , go to the 6th dimension , there's no love there so no such hate either!

[@PeterArnold1969]

Like they always say, It's never too late to start.

[@chrissybarbosa9787]

Stay alive at 55❤😂🎉🎉🎉🎉🎉

[@show_me_your_kitties]

​@@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.

[@JohnBrooking4]

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.

[@TragoudistrosMPH]

Maybe raised round a bouts over intersections? (Spitball idea, I'm not an engineer 😅)

[@TinToeTimmyTime]

@@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.

[@waynerawlings8599]

You need a hover bike

[@eggbenedict-gt7mw]

Fool if u wud cycle on indian potholed roads, with air pollution, u wudnt have said that 😂😂😂😂 of traffic

[@jamesdean922]

So traffic lights for cyclists spare to the lights for cars

[@raghunitin]

Why do we keep saying that time is the 4th dimension? I ask this because, a 2 dimensional creature cannot perceive the existence of a third 'spacial' dimension. So, why should we, as 3 dimensional creatures be able to percieve a fourth 'spacial' dimension?

[@kayosensei]

This is what im thinking as well, i would have to disagree that time is a dimension because we as 3D creatures made sense and logic out of it. And it's not like 2D creatures are not affected by time, they surely are affected and know about time as well! How would a 2D surgery work if there is no time in the 2D universe? They definitely need some time to perform that operation! A real 4th dimension is something we can't imagine or make sense out of, and as a 3D creature i can't tell you but i know it's definitely NOT time

[@a.m.p.3545]

What I heard is 4th dimension being can scroll through time, like they can go up or down in time but can't change it control it. Just like 2D dimension being, they can go forward and backward in a length but can't go left or right since they have no width and 3D being like us who can go forward, backward, right, left, up and down, but cannot change or see scroll through time. So the 2D and 3D has time as a dimension, but they cannot scroll through it. 4D scroll down time but cannot change it, 5D can control it or something like that I heard.

[@user-81516]

"A 2D creature cannot perceive the existence of a third spatial dimension." This is not true. Not being able to perceive the next dimension doesn't mean it can't be known. 2D beings can be aware of the 3rd dimension; they just simply can't move within it like we do. For example, imagine a 2D being observing a sphere moving up and down. What they would see is a line changing in length, correct? This can be measured in the same way that we, as 3D beings, measure time.

[@user-81516]

⁠​⁠@@kayosensei Time, as the 4th dimension, exists for everyone. What you might not be understanding is that a higher dimension doesn’t stop existing for lower dimensions. As I mentioned in my comment above, we, as 3D beings, can measure time, the dimension above us, in the same way a 2D being can measure depth.

[@mixuaquela123]

Time is not a spatial dimension but we often call it the 4th dimension because it's so deeply profound in our lifes. Actual 4th spatial dimension only exists theoretically and is way harder to imagine and impossible to visualize

[@mixey01]

Next time the Misses says I'm late, I'll tell her that in another dimension I have all the time in the world

[@rewolfer]

I'm not a UFO nerd by any means, but I recently wondered about multi-dimensional objects in terms of UFOs. There was a video of one flying across the surface of the ocean and then appearingly dipping in and out of the water with no apparent impact by drag and no splashing. My immediate thought was this entity could be just moving on a 4th axis so as not to hit the ocean in this 3d plane. Then it reminded me of previous UFO videos I'd seen where the UFOs seemingly were morphing/changing shape unnaturally. That would make a lot more sense if they were actually 4D objects and we were just seeing 3D "slices" of them as the move/rotate in 4D space.

[@tabby73]

Like, they were dipping in and out of our present moment

[@rewolfer]

@@tabby73 yeah exactly!

[@bbbvas_.]

Woah, hold up you onto something. Very interesting. Could you talk about it more?

[@Byaryu]

You should read ball lightning by cixin lui

[@jeffwc]

I’ve had this exact thought! But then we have to ask, what 4th dimensional object is intersecting and interacting in our plane? And why?

[@mellowillow]

I had an extremely Vivid dream about beings from the 4th dimension watching us. It was wondrous and scary. Now i think about it all the damn time.

[@katherinehansen5801]

I've had the same dream! 😮😮

[@touchdgrassonce]

Dimethyltryptadream

[@DavidHadden-h5k]

What happened. Did you have any premonitions?

[@bignigga1416]

i think we become 4th dim beings when we die, death is just a limitation remover, they say sleep is death being shy and if youve ever lucid dream youll get a glimpse of what the 4th dim world is like (afterlife)

[@martafiord]

Funny that religious people find comfort thinking that someone superior is watching them.

[@jasonhuofficial]

How did I discover this channel just today? Subscribed immediately.

[@Juno006]

Back in 2018, I was staring into the distance, and a bunch of ideas ended up in the formulation of a thought..."what if darkness isn't caused by the absence of light, but rather by the presence of some other substance which when it exists in greater quantities than light(either as waves or particles) causes the phenomena known as darkness"

[@Juno006]

Just as there are many things we're unable to perceive due to our physical limitations as a species, we simply might not be able to observe this substance and our technology is also not advanced enough to read, detect or quantify it either...but imagine being able to turn on a "bulb" which darkens the environment to an extent, wouldn't that be amazing in more ways than one?, sadly I lack the resources, knowledge and more importantly the drive to pursue this past just being a "thought" in my lifetime, cheers.

[@freddypelo]

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.

[@shyguymuzik9095]

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.

[@justincosby6809]

So I can talk to you at Starbucks tomorrow at noon through the phone I guess

[@justincosby6809]

The world line. Wow!

[@nopenopenope131]

Great observation. Love it lol

[@silla-je9od]

(cricket chirps)

[@BarbaraHollingsworth]

Love it! To go from not understanding to understanding. Lightbulbs turned on. Thanks Neil, science, sense, humor all at once.

[@EmilycheriHoeckele-tr3lk]

zig zag

[@thor2765]

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 🙏

[@scorps192]

He was for me until I found out he went to epstein Island a few times.....

[@HavinDemir-hq3vk]

​@@scorps192sources? Where did u read this? Tragic, it is everybody!

[@Lethalbanter]

​@@scorps192stop spreading misinformation you little weirdo

[@finishme-l1n]

@@scorps192 all allegations lol he addressed them all, no one disputed lol

[@amor2874]

1:24 😂 perfection

[@PlatinumHustle]

I’m using that line

[@The-only-Superman-that-matters]

​@@PlatinumHustleHow'd that go brotha 🤔😂

[@itbe]

How many more explanations like this, are there? Every time I'm faced with a new variation, I feel like my brain is opening. The impossible perspective shift is sooo satisfying. More please!

[@jimgilbert9984]

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.

[@laplacesdemon82]

they teach that in linear algebra?

[@jimgilbert9984]

@@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.

[@ResAK369]

A teseract?

[@jimgilbert9984]

@@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.)

[@kritimisra-ez6rn]

Huh? How is it possible to draw a 4th Dimensional figure on a piece of paper? Were you deluded?

[@ra7e]

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 ❤

[@rklein]

Thank you! I was thinking the same thing.

[@canalinativo____2024]

Dont blame. The animation has been made by a 12 years old ( Probably)

[@valentinachiricallo3476]

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?

[@rklein]

@@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!

[@adamb89]

A 4-dimensional person could kick a 3-dimensional dude literally IN the balls.

[@lazypossum42]

That means when we allow only certain vehicles through a specific lane during a specific TIME, (eg: lanes set aside for school traffic during finishing hours) we have evoked the 4th dimension too.

[@anthonycraig274]

“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

[@NobleSainted]

Always fascinating and thought-provoking topics to enjoy. Thank you so much StarTalk!!

[@LeoR-e6h]

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

[@sanalsankar]

@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.

[@HomoSapienMan]

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

[@LuxTravel4k]

Exactly what i think

[@3Prism]

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

[@sanalsankar]

@@HomoSapienMan Great thinking. 👍

[@sanalsankar]

@@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.

[@SiqueScarface]

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.

[@TJS0610]

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.

[@fanaticatheist]

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

[@reyariass]

Do you happen to know if the films are on KZbin? I’d love to learn how different dimensions might look like

[@SiqueScarface]

@@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.

[@SiqueScarface]

@@reyariass Not the films by themselves, but there are a few lectures by Thomas Banchoff on KZbin, which feature some of the films.

[@nikkistar1891]

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.

[@Gregavision]

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.

[@borrago]

Nope. You and chuck are wrong. gregavision is right.

[@Anifundom]

I had to pause & save this video for a watch later so that my head can cool down for the next time I rewatch it

[@victorwang5982]

Huh

[@jasonknowledge8824]

This is something that I've been talking about for many years. To see Neil finally tackling this aspect is really encouraging!

[@jonathant926]

😂😂😂😂😂😂😂😂😂. 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.

[@KayZee-c2x]

@@jonathant926you’re a yutz.

[@kevincronk7981]

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.

[@MylezNevison]

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.

[@Yoakahama818]

Online gaming

[@raviroy7882]

Great video. At 4:10 they even added a heart beat sound when they show the heart and again when the visuals slide through the body passing the heart(4:16). Nice touch there. Loved it.

[@x_capt_x9584]

Neil and Chuck never fail

[@suzannepoffel2160]

So TRUE!!

[@FacesintheStone]

They never fail the masses! There’s higher levels, don’t think that this is the end or the top of the tree ❤

[@fkinetic]

@@FacesintheStone and those masses are each equal to their total energy divided by the speed of light, squared.

[@mattiapezzano1713]

Levy never fails to, ah wait wrong channel

[@yhoff76]

NEVER!!! I love these guys, StarTalk for life!

[@woodmandawson1416]

This is a great simplified teaching on dimensions, love it!

[@chaunceychappelle3265]

He is the one that explained the big bang has never stopped. That means we are on the edge light bouncing around; flickers in the flame of things. Incredibly humbling when you conceive yourself as expanding opposed to simply living. Cool dude.

[@enricotivi]

I never ever get tired of these 2 gentlemen

[@gosnooky]

You can't fathom the enormity of how much I love this podcast.

[@BigQuestionsTV]

Chuck, the funny guy cracking jokes, isn't just about laughs; he knows his stuff when it comes to physics too. He's totally ready to chat with Neil about the universe.

[@RavenSteeze]

Excellent balance of passionate science education and comedic timing to help balance out any existential dread with humor

[@Alessandra-j6i]

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.

[@kelliewonderly6841]

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.

[@Lydirius]

It's the only way I can understand it completely.

[@cosmicshuckle420]

We all ponder my friend. The only difference is how much work we put on into finding the answer.

[@erikjackson6188]

He is a stoner, smokes with Joe Rogan

[@PoP_Corn2010]

He’s an astrophysicist lmao

[@jamesk7714]

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...

[@rordog236]

That was a pretty awesome explanation! I always wondered what they meant by time being the 4th dimension. It finally makes sense.

[@tegathemenace]

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

[@whyarealltheidstaken]

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.

[@HomoSapienMan]

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

[@pkaramol]

Gotta love this man and his passion for passing on knowledge

[@peterdamen2161]

Strange, as it is complete nonsense what he is saying!

[@DodgyDaveGTX]

@pkaramol Neil is pretty good too btw 😉

[@pkaramol]

@@DodgyDaveGTX 😅

[@BariumCobaltNitrog3n]

Passion maybe but not ability. None of this is true.

[@peterdamen2161]

@@BariumCobaltNitrog3n Exactly!

[@TheSkinnyZ]

Not gonna pretend I understood the whole dimensional surgery thing.

[@Itsmoremi]

Basically in the 4th dimension you can see through everything

[@Qvluong]

look up Abbot Abbot flatland. Or Mr. Quantum. It's easier to think about it as shapes.

[@vikasguptayt2546]

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)....

[@chrisstearns10]

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?

[@markj3169]

The Rock: IT DOESN'T MATTER!!!!

[@Melancholic.0]

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

[@Superbrains]

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....

[@JohnBrooking4]

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?

[@Melancholic.0]

@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

[@sandrasplayplace]

Oh my gosh, the way they dissected this specific topic is rather magnificent.I’m impressed 😊

[@dorothyedwards7225]

I'm so Loving This!!!! Thank you Neil & Chuck!!💛💫💕👍👍

[@Myelin.chief1709]

Thanks lads struggling to understand this correctly for years, this helped a lot and pleasure to hear you both. Subbed and shared xo

[@osgubben]

I think Chuck is super smart, but hiding it.

[@DJSOUNDWAVE]

Comedians are typically smarter than average

[@forkrunner2313]

disagree

[@Dominic-n2y]

Naaaaaah

[@chrismontoya4266]

He's sharp fo sho

[@ProfessorPepperr]

Idk he be missing the point way too often sometimes I wonder if he's even paying attention

[@niledmz]

i bet beings in the fourth dimension doesn't experience regret as much as we do. it's like us picking up someone's spoon off a table and we can't put it back down, we try to apologize and say "i wish i didn't do it." In the fourth dimension they can put the spoon back down just the way they picked it up, like it never happened. It's so simple to them that it's like making it up to someone. CRAZYYY

[@caitcc89]

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!

[@fact_frrenzy]

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🤩🤩

[@bbbvas_.]

@@fact_frrenzy for real about to search the internet through cuz this is actually very interesting.

[@kayosensei]

​@@fact_frrenzy you can do a lot more and solve lots of 3D problems in 4D but the 4th dimension is definitely NOT time

[@fgrodriguezqac]

A classic analogy is Edwin A. Abbott’s “Flatland,” where 2D beings live in a flat plane and cannot perceive the third dimension. A 3D being can see inside and around 2D shapes effortlessly. Similarly, 4D beings could interact with our 3D world in ways that seem impossible to us.

[@bolderyman6089]

CHUCK! "Girl, I just need you as part of my world line." And the BEAT drops, that was awesome ... I didn't know I needed to hear G Nice make an album!

[@NickHiltermann]

"You have a very low bar for what's a flying car." Chuck is amazing!

[@spac3mansp1ff]

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?

[@BariumCobaltNitrog3n]

Yes. This is entertainment, not science.

[@MzansiDailyReviews]

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

[@johnkitchen4699]

I love Chuck’s comment that with Zoom we converged at the same place digitally. Neil looked stumped for a moment and moved on after making a weak point to answer Chuck. Economists (and probably others) use multi dimensional modelling. Subways don’t utilize a third dimension as they can only go backwards or forwards. They cannot go up or down or left or right.

[@ashleydawkins2407]

So subways go forwards and backwards they don’t turn at all 😂 of course they use 3rd dimension otherwise they would travel in a straight line, the tracks definitely turn left and right and even up and down just ever so slightly

[@academicdeaneducation6671]

With zoom, we perceive the sameness of place but we are actually receiving a broadcast of transmissions from different places that area displayed simultaneously.

[@MrJmart81]

Great vid, ima set a reminder to rewatch it two weeks ago again

[@MartinVoorsmit]

"Girl I need you on my world line.." 🤣🤣🤣 05:25 "I feel violated.." 🤣🤣🤣

[@DaysOfFunder]

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?

[@HAOwanderer]

Wait... 8:43 A string with a loop wouldn't be possible in a 2 dimensional world, cause the string can't go above or beneath itself. Which left me wondering whether there are another level of knots in a 4 dimensional world or knots cannot exist at all there, cause they will always untie themselves... ???

[@EmilycheriHoeckele-tr3lk]

its like fencing the elcritic band of the country but in a dead hubble

[@popdatclutch3010]

Crazy how meeting virtually can be an actual talking point

[@gabrielacovay]

Extremely fascinating! Can we get a full episode on Dimensions?

[@fanaticatheist]

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

[@michaelccopelandsr7120]

Time is fascinating. I worked the subway stations for nearly 10 years. From one end of the city to the other. Every so often I would notice the city would be saying that, "Today just flew by" or "The day was just dragging along." How can an ENTIRE CITY, with NO INTERACTION with each other, until they used the subway, complain about the same time paradox unless it was effected by it? Maybe a time distorted bubble the earth passes through in its revolution around the sun. Maybe random waves of time distortion hitting the earth? Maybe they're given off by the sun. Maybe they're from outside our Terran system and reach us in intervals. ???? 🎶Ti-i-i-ime, is on my side. Yes, it is!🎶 If you can think of a better way to do a blind survey - of an entire city - in that small window of opportunity, well then, I'm all in. Until then, I invite you to spend a couple years in the subways. Between 2pm -10pm and you'll see for yourself. Just listen as an entire city gets off of work and gets out of school. You'll see it's more than a, "coincidence of circumstances." ;-P

[@halimabegum3783]

This is fascinating stuff and there are no coincidences

[@markelraya10]

Maybe you’re delusional

[@richardjamesclemo6235]

It’s similar to ‘when it feels like Wednesday, but it’s actually Tuesday’.

[@teecchnoboy]

so teleportation would require access to the 4th dimension

[@Uchay4u]

Exactly 💯💯💯!

[@hunterhall1575]

Im guessing that moving through the 4th dimension to escape the cage would mean you would move back to before you were in it, meaning you would see yourself escape as you go in? Like, I guess you'd already be out before you got in depending on how far you "walked" through the 4th dimension. Teleportation is 3d travel, through space, but time is also just a part of higher dimensional space... idk, im pretty confused too. But, I guess teleportation has to be time travel of some kind?

[@Thedeville3001]

I gotta think about the movie Jumper now

[@jonaskarlsson5901]

nah you would still have to walk in the 4th dimension and then walk back to the 3rd again. Just like a 2d creature would do

[@Mr.XYZ6775]

I kinda work in the fourth dimension. I created a complex mobius twist. On one the legs of the mobius, I sliced it with a cutting plane, created some geometry on the inside of the leg, then extruded it, created a circular pattern. Then removed the cutting plane to reveal an anomaly coming out of the inside of leg of the mobius. Finally I stretched it, compressed and expanded it to form a complex mobius tear drop shape. This was done in solidworks cad. Then had it 3D printed.

[@HarsheetApparels-qb1wd]

This Interviewer is making the topic way more interesting than it would have been without him here 😅

[@exertion309]

I dig this pick keep up the good work 🎉 definitely have to expand dimension physics into a full episode 💯

[@regina9733]

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 !!

[@NickHiltermann]

Chuck's right about converging virtually. One could say that Zoom allow's us, virtually, to travel at the speed of light, giving us the illusion of bypassing the location dimension. But strictly we are at the same place, almost. Like two people sitting across a coffee table, we don't actually occupy the same place, we are just close enough to communicate.

[@danvercillo]

Love it, that was fascinating and funny talk on dimensions. Neil and Chuck always leaving us wanting more.

[@kelliewonderly6841]

Ok but can the 4th dimension actually be time? 1st, 2nd, and 3rd dimensions are spatial dimensions... Time isn't spatial. Also, wouldn't time exist in all or the dimensions? So in a one dimensional world time would be the 2nd dimension, on the 2nd dimension it would be the 3rd and in the 3rd it would be the 4th. Idk, but I would think the 4th dimension would be a spatial dimension too.

[@BRANDRUMZ]

I think the answer is no, because time has to be explained to exist while three dimensions are inherent. Time is only a needed mathematical tool because we don’t exist for all time. Maybe?

[@Feliz-dm7cq]

Well, from my shallow understanding, Neil explained it at the very start of the video. If the two of us were to share a room, the conditions that *must* be met are 1) we meet at the same coordinates 2) we exist in those coordinates at the same time. If we're describing space between two objects, then time *must* be a dimension. I may be standing in the exact same coordinates you existed in centuries ago. Does that mean we met at the same point? No. Because if we consider our distance in time, then we obviously are very far from each other. One of us would have to travel in time, then we would be at the same point. Time in this case is also measuring space between us (though that's hard to conceive, especially as beings that perceive the world in 2D). It's sort of like a depth illusion. If I placed a can directly in front of me, then placed another a few miles back but to the side by a few inches, I would perceive those two as "next to each other" if I flattened my view to 2D. We also view time in events following each other, but that might be an illusion created by our brains. And I don't get what you mean by time "existing in" other dimensions. The second doesn't exist "in" the first, it just is. Time isn't a concept "inside" of anything, it's an entire spatial direction. If you want there to be time for a 2D creature, that means you have to measure it by 4D. Time isn't "passing" but we naturally perceive it that way. While increasing in length means getting taller, increasing in time means getting older. So for time to exist in 1D or 2D, you literally just have to measure it in 4D

[@johnzebond7718]

Thanks, Gentlemen! Superb as always.

[@antonioderenzo6835]

that was the best youTube vid I have ever seen Thank You

[@MahoganyBlue24]

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.

[@sembl4nce1]

I would describe time as 'omni-dimension' since it can exist in 1D, 2D, 3D, and possibly in higher dimensions.

[@thethirdjegs]

In Einstein's equations, time and space are the same.

[@srsqtee]

For some reason when I learn more about dimensions, I start to feel claustrophobic in 3 dimensions. Awesome explainer!

[@18vishnupriya]

I was experiencing the same thing just now! Couldn't put it into words. If a 2d being is unable to come out of a box we draw around it, we as 3d beings are unable to come out of the six sides walls around us (unless using a door) and that makes me feel like I am caught inside a box.

[@Smokeaied]

@5:23 my first thought was when Mushu meets Mulan in the original cartoon and was like “My eyes can see straaaiight through your armour.” And it all just made sense to me. 🥲