Trying to understand the 4D while living in a 3D world using a 2D screen with my 1D brain. Edit : I saw this comment on some video, I don't remember which one. Thank you for so many likes. 😊
Sorry to tell you, but time is also a dimension. I'd recommend not leaving a comment if you don't know what you're talking about. thank you for existing
@@xei2694When people say time is a dimension, they are not referring to a spacial dimension, they are referring to spacetime in the theory of relativity. Because in space, time is dependent on the observer. In physics, people consider time to be 4th dimension of space time, as in another way to measure objects.. It doesn’t refer to the spacial dimensions, 1D, 2D, etc.
Hi, Hey, Hello!!🦜 The more G’s, the better!! They’ll reflect our minds, technology, and more!! G strings!! 👙 👙👙👙 Our brains look like gum!! 🧠 Juicier the better!!!🍏🍋🟩🫐🍍🍎🍌🍈🥥🍐🍉🍒🥝🍊🍇🍑🍋🍓🥭 Love everything until it loves you back!! Mosquitos too!!🦟 ❤ Each of us and each galaxy would represent a cell!! 🦠 We’re stars putting ourselves back together again!! Like Humpty Dumpty!! 🥚 🐓 The sky is blue because we’re meant to imagine it as a diamond!! The auroras then create the rest of the spectrum!! 🌈 💎 A purple sky would reflect the heart of the ocean!! An opened mind!! 🤯 The earth purring more!! Purrrrrple rain!!☔️ 🐈⬛ 🧶 Each thought to me is a solar flare, which shifts us into parallel worlds!! It’s hard here!!! I’m a peaceful dude, yet my life here has been super difficult!!🥹 Alpha Centauri represents a shift in consciousness!! Dog planet!! We’re riding the alpha waves!! Woof woof!!🐶 🐾 This is our world peace and enlightenment for the world and universe!! All is one!!😇🥳🥰🤩 We’re each a mini universe!!🌌 The 3 Body Problem represents our gut brain, 🍱 heart,❤️ and mind!! 🧠 The moon is a black hole!! 🕳️ A neutrino!! The planet is a colonized moon!!😇🌍👽 The sun is a shapeshifter!! 🌞 Are you and I sculpting together as a team or as individuals??? 🧑🎨 Using the moon as a tool!!! 🪨 The Sun is the eye!!👁️ I love the tool/word grinder!!!😮 We’d be Bumping and Grinding!!😂 The Earth is like a refrigerator and the atmospheric pressure is melting or defrosting the stars above, as if they’ve been in the freezer!! 🥶 It would also reflect us krystalyzing and becoming diamonds in the sky!! 💎 💎💎 Lucy becomes Maisie!! 🐒 👽 We could be stars from above aka heaven, melting everything from above, as well! Like a River Running Through It!!! 🌊🌊🌊🌊🌊 Gravitational waves or our thoughts raining down on us!! 🌧️ Unlocking a Secret Garden within and outside of us!!🤫 An Oasis!!!🏝️ 🏝️🏝️🏝️🏝️ Flowing!!! It helps a lot to flow!!!🌊🌊🌊🌊🌊🌊 Letting go, so we can concentrate more and work on our project!! Heaven On Earth!!🌍 👼 Flowers!! 🌺 🌸 💐 and Flow-Ers!!🌊🌊🌊🌊🌊 I know energy is still impurrtant!! 😻 And of course imagination!!! Love!!!💗 🐶 🎾 🧶 🐈⬛ To create heaven On Earth, the galaxies collide!! 🌌 Twin flames connect!! 🔥 🔥 We’re creating quantum entanglement!! Ghost particles merging, becoming more like the Stay Puft Marshmallow Man!!👻👻👻👻👻👻👻👻 The universe is still the Earth!!⭐️🌍⭐️ We’re seeing it from the insides!! 🕵️ Like we’re inside a volcano 🌋 or wishing well!! The stars and galaxies are like coins!!🪙 The Goonies vibes!! 💀 We’re treasure!! Antarctica is treasure island!! 🐧🇦🇶 Unlocking antimatter!! 🐜 Booby and booty traps exposed!! Planet X!! Hubba Hubba!!🥰 Everything and everyone has been our teacher!!👩🏫 3D is like the murky bottom of a bong or volcano!!🌋 The fourth dimension, representing Mars is like the stem of the bong or the volcanos vent!! 👽 Experiencing higher dimensions is like the smoke or magma reaching our mouths 😋 and then circulating through our bodies!! We are the Earth!!🌍 👼 The road less traveled!!!🧳 🌹 Straight up!! 🎈 🎈🎈🎈🎈We’d be super condensed or extremely packed neutron stars!! Like Rigel!! Blueberries 🫐 Antioxidants!! Betelgeuse has evolved into a neutron star!! 🧊 🦖 🧊 🦕 🧊 🦣 Our long winding road, exploring different dimensions, finally straightening out!! I’m getting Pee Wee vibes!! Large Marge sent me!!🚴😂 We’re vaporized, as if we’ve been smoked or roasted!! 💨 The smoke representing again those compressed neutron stars climbing the higher dimensions of the universe like a chimney!! I’m Mary Poppins, y’all !! ☂️ 🧞♀️ It would also represent us as a comet traveling through a wormhole!! 💫 Who me, I’m just a worm!!🐛 🫖 Solving a labyrinth!! 🦉 Solving amaze!!! 🦋 Different energies tell a different story!! 📚 We’re storytellers!! Artists!!🧑🎨 We’re energy first!! 🐝
@@MrBrineplays_ because difference between 3d and 2d beings is just an extra spatial dimension... By adding an extra spatial dimension we do not get access to time's dimension because spatial dimensions are seperate from time dimension (This is my perception of space-time. It may not be accurate)
@@GonPlayss If you think about it, I think we can indeed time travel in the 2nd dimension in the z axis even if it is just another spacial dimension to us. Kinda like a flipbook where we can look at whatever page we want. But for them, every layer of the flipbook is a time passed
Hi! Having recently done a project on rendering 4D objects in unity (probs also the reason this was recommended) I have a small remark. The visualisation you mostly use of the hypercube is the perspective projection (also called frustum projection, similar to orthogonal projection - not too important). This "squashes" a 4D object into 3D, much like how a shadow is a 2D "squashed" 3D object. It makes a lot more sense to think of it using the cross sectional projection, which is essentially what you do with your 2D example - you take a cross section where w=0 (the normal 3D world) and translate the object through this cross section. Let me know if you want further reading, I got a few good sources and yt videos
@@PixelZYX That's true - but you're forgetting time! By manipulating a 3D object in a 2D plane, you can change how long that line would be. A 2D creature would see the line changing in size. The creature could develop some sense of intuition for the object, and thus kind of understand it.
@@user-vk7zv3he1m chill, maybe English isnt his 1st language, or maybe even 2nd. Not all ppl are native English speakers. Also, its a grammatical error
I've been a nerd around these kinda subjects for a long time and understand the majority of them, but I've never seen a video, regardless of the length, explain it this way, let alone a short video. Thank you.
Oh man.. I'm literally crying from joy of how funny and how educational this video is! The reason for why it is eaducational is because you made asy to understand and comprehend a quite complex topic with great illustrations! You earned a subscribe from me, instantly.
1,2,3=our world 4=private time (can see to past or future (if time machine real)) 5=people time 6=the real time than cant be changed even with the time machine ( already know all
I feel like since we are beings in a third dimension, our laws of physics only work in our 3D world which is why the grandfather paradox works. However, since we are not fourth dimensional beings, we do not know what the laws of physics are in the fourth dimension. It is possible that the grandfather paradox is invalid to those living in the fourth dimension for some reason we cannot understand because we are in a 3D world. I'd like to believe there are a near infinite number of dimensions and each dimension can experience the dimension above theirs but cannot manipulate it. For example, 4th dimensional beings are effected by the 5th dimension but are unable to control it much like we experience time but cannot control it.
That doesnt make sense. Physics are the same in all 3 dimensions, so why would the fourth dimension be any different? And for gods sake, time isnt the 4th dimension, since it is completely different from the other 3 dimensions. The fourth dimension would be another spatial dimension, as well as the fifth, sixth and so on.
@@Kooczsi I think it makes sense. After all, it is what I believe. You mentioned that physics is the same in all three dimensions. How does this work? I understand that laws of physics build on each other as you move up through dimensions (i.e 1st to 3rd), but not as you move down (3rd to 1st). There is no depth in a 1D or 2D world so how would the same physics in a 3D world apply to the physics in a 1D world? Also, what is your definition of time? Time is simply a tool to help us better understand that there is a passage of something. If we are passing through time (or in this case something), aren't we technically moving? We have no control over the flow of time but we do have examples of massive objects being able to have an effect on it (time dilation). Hypothetically, if you had a time machine and wanted to travel to a specific point in space time, wouldn't you also need the time coordinate? You would need four coordinates. Your X position, your Y position, your Z position, and your W position (W = Time). I am going to ignore XYZ assuming we already understand how these work and focus on the W. Say you wanted to travel 1000 years to the past at a specific point on Earth. Oh no! you forgot to put in the W coordinate and it remained unchanged relative to your current time. You would just teleport to the XYZ coordinate you put in. If your calculations were correct, you should be at the very spot you wanted to be at. However, you would just be floating in space at the coordinates that Earth was 1000 years prior. The last bit might have been a bit confusing but the whole point is that time is spatial. If time travel were real, time would be an essential coordinate. Without it, you'd be at the right place at the wrong time. The fourth dimension is always a fun topic to debate so I'd like to hear your thoughts. We will probably never come to a conclusion in our lifetimes, but it is fun to ponder what it could be.
i like your curiosity, id argue we actually are 4 dimensional beings, since we can be described by 3 spatial coordinates and a time coordinate (and since the number of dimensions is just the number of independent coordinates we are 4 dimensional (plus the fourth dimension can be considered as time which im adding since theres a popular misconception (wow theres a lot of stuff here))). anyways by the way in general relativity there are solutions allowing for closed timelike curves (just the fancy word for time travel), but just because its a solution to the field equations doesnt mean its viable for reality, whats also interesting is that if these systems were possible, the grandfather paradox could be ignored since reality could have a principle where you couldn't possibly change anything in the past allowing for there to be no contradictions (the probability of you changing something in the past would be zero), this is called novikov's self consistency principle if youre interested , its funny people have thought about these goofy scenarios
Humanity can only access 3D, since the object we see from our naked eyes is 180 degrees. A 4-dimensional being can access and see the whole 360 degrees angle, which we can not comprehend. Maybe 4th dimension is gravity, maybe it's time, only a higher dimensiom being knows.
2:25 why do we call it "grandfather paradox"? If you were to go back and kill your father instead it would still create the same paradox, adding the extra layer was never necessary
Time is the 4th dimension in the sense that there is 3 dimensions of space and 1 dimension of time in our reality. Similar to trying to imagine a higher dimension of space, imagining more than 1 dimension of time is also mind boggling.
Furthermore, in contemplating black hole singularities, consider the possibility that what we perceive as a singularity might actually correspond to a perpendicular axis extending into a fourth dimension. Imagine it as if we were rotating the x-axis in such a manner that we observe the line directly from the front. Does this make sense? To simplify further, envision attempting to visualize three dimensions on your computer screen-an endeavor that proves elusive. Our screens inherently flatten the world into two dimensions, leading to foreshortening effects. In reality, that line would emerge straight out of the screen, akin to how we perceive a black hole singularity
In geometry, we can conceptualize dimensions beyond our usual three dimensions (length, width, and height) by adding additional coordinates. For example, in four-dimensional space, we add another coordinate, typically denoted by "w". This allows us to describe points in space using four coordinates: (x, y, z, w). However, it's important to note that imagining or visualizing four-dimensional space directly is challenging because our brains are accustomed to perceiving only three dimensions. Nonetheless, mathematicians and physicists use mathematical tools and concepts to understand and work with higher-dimensional spaces, such as hyperspheres, hypercubes, and other complex shapes. In physics, the concept of the fourth dimension is often associated with time, especially in the context of spacetime in Einstein's theory of general relativity. Here, spacetime is a four-dimensional continuum where events are described by their coordinates in three spatial dimensions and one temporal dimension.
2D characters don’t just see a changing shape, spatial dimensions are just scale but rotation still exists in the 2nd dimension, therefore the character could see every part of the shape just very squished vertically
WH40K lore probably does 4th dimensional time interactions better. In WH40K there are Gods of Chaos who exist in a realm of chaos known as "The Warp". You may think of The Warp as Hell, but it's a dimension that mirrors ours and exists in non-linear time. This means that the Chaos Gods have simultaneously always existed and never existed. As the lore goes, once they began to exist they had then always existed, so they do exist and always have existed. Some people in WH surrender themselves to chaos for additional abilties. One of gods, Nurgle (the Chaos God of change, life and growth. Change through pestilence), in particular seems to bestow some of his followers with visions ahead of time. There's an episode of a series called "Hammer and Bolter" which shows this affect off very well. I this episode, the Followers of Nurgle invade an Imperium Cathedral, but they get inside because in the future they had _already_ been inside, and so their future selves left plague bombs for their past selves to activate and kill whoever was inside and also rot the door mechanism so they could break it. They were able to break in cos their future selves had already done it. It's really fucky, but it makes sense in context. Be careful though cos WH40K is fucking grimdark. A lot of this stuff is too brutal for normal people
1 dimentions = x axis only and will always be a straight line 2 dimentions = both y and x axis and the new axis (y axis) is perpendicular to the x axis (the 1st dimention) x = 0 and y = any number represented on a line which makes infinite copies of x- axis. Either varibles (x , y) can be equal to any number each without one of them being dependent or independent from each other. Shapes in 2 dimentions are surrounded by straight lines completely, but the lines form different angles between 0 and 360 degrees. They also have areas of the shapes included. (So the 2nd Dimention has much more features than the 1st, a new variable (y) and angles formed out of shapes) The Third dimention is more complex; If we look at the 2nd Dimention coordinate plane, it has an x- and a y-axis. The first only had an x-axis, but the second had both x and y. But the y-axis was perpendicular to the x-axis which formed the entire 2nd dimention. However, when we add a new variable (z) to form the 3rd dimention, It would form a z- axis, but this time the line of the z-axis would be perpendicular to the origin of the x- and y coordinate plane, but x and y would both equal 0 and Z would form infinite copies of the x- and y axis The equation of the z-axis line (if all x , y , and z form a 3 Dimentional Cube) would be y = x So all 3 varibles x , y and z are the 3 unknown coordinates of all the points in the 3d Cube. Shapes in 3 dimentions have surfaces, edges, vertices and faces where things like Surface Area or Volume can be measured, but the key is that each point in the 3d shape has 3 coordinates x, y, z. Another thing about 3d Shapes is that Cubes contains the most possible points in any type of 3d shape. For example, the centre of the Cube is the origin (0, 0, 0) and the eight corners of the Cube are (x, y, z) and these coordinates are equal to each other. The 4th dimention is very, very complicated , It can have even a fourth coordinate (x, y, z, w) But think of it as the same 3d shape inside a 3d shape, except that they are connected with lines but the lines form a perpendicular line to each one of the corners of all of the 3d shapes contained in each other. The infinite 3d shapes cannot be made copies of each other so that the ratio of the volume of each new cube is always constant without the w- axis or w- variable. Each new dimention gets more and more complicated
The 5th dimention is kind of like a reflection of the 4th dimention , I think? The new axis has to be perpendicular to a point of all axis of the previous dimention I think? Formed at the origin each new axis.
this is pretty long but it explains it to you guys, like this comment so everyone can see it. Look, 4D shapes are possible because of position / time, wherever you go around the 4D object, you would see it changing, for example you go on the west side of a 4D object and you see a normal shape, and if you go on the east side sometimes you would see another shape. The most complicated shape of the 4th Dimension is a sphere, here he explains how 2 3D cubes inside of each other would create a 4D shape, and you would need a W axis which is perpendicular to all of the other axis's, so if you would need a 4D sphere with a W axis it would be the same of a Black Hole. A black hole is theoretically a 4D object, there are theories that say if you fall into a black hole, you would be sent to another dimension, a black hole can bend light and space itself. Wherever you go around a black hole you would see something different, light itself crossing each other / the photons inside of each other. Any being from a dimension can not understand or see any other being or object from a higher dimension, he showed how a 2D being sees a 3D being as a constantly changing flat surface, because the 2nd Dimension does not have depth.
I think Time still works as the fourth dimension. Any 4D entity would just have to be immortal. Not only does our 3D universe look like a 2D image to them, but they could also pick when they're looking at too. Meanwhile we're unable to skip ahead or go back in time. Just like a line is stuck on a piece of paper.
Time is temporal and width, length, height are spacial dimensions. When listing the dimensions in order the spacial, and hyperspacial are listed first before the temporal (time). When ppl talk about 4 dimensional creatures they are assuming these 4 dimensions are spacial compared to us 3 dimensional spacial creatures. So just how we would be living in a 4 dimensional world with time being the 4th dimension, 4 dimensional creatures would be living in a 5 dimensional world with time being the 5th dimension (seeing how we like to count the spacial dimensions first then the temporal (time) ones.
Additional info •A 4D being perceives in 3D,just like how a 3D being perceives in 2D (We cannot fully "see" a 3D object without rotating it,only parts of it. a 4D being would fully see a 3D object without rotating it) •Just like a 3D being having a 2D shadow, a 4D being has a 3D shadow •A 4D being can "turn" a 3D objects into it's mirror image,just like how a 3D object can mirror 2D objects
I think time is the 4th dimension for us living in 3d world. And for those living in a 4d world time will be their 5th dimension, thats just my hypothesis just woke up from a nap
I remember someone explained 4d to me like 12 years ago in college. He just starts out by saying "whats the perpendicular of a cube?" And proceeds to blow my feeble mind while im on a dose of acid
I don’t understand why everyone thinks time is the fourth dimension, it’s not even a dimension, time is just a concept we created to describe changings, if everything were still, there would be no time. My train of thoughts is that a 2D being would perceive a 3D being as a line (1D) and we (3D beings) would perceive a 4D being as a plain 3D object, only if these higher dimensional beings were moving we would see strange stuff: for the 2D being perceiving the 3D being would be the line stretching in and out from nowhere and for us perceiving a 4D being would be like seeing someone or something teleporting from one place to another. So in my opinion time just helps us perceive higher dimensions and there is no connection with higher dimensional beings being able to control it.
Maybe is how we think about time the problem, we use "time" to be able to perceive a change of the reality we see: Object is (present and maybe future) - object changed (the object how it was before now is past and the object that now is changed is present and maybe the future) but this happen so fast, it happens in the same moment as it became all three, pratically past, present and future all exist in the same moment thus we can say that exist only present in the universe as past and future are abstract (exist in memories and as thoughts) or the "time" that we perceive doesnt go forward neither backward, all happen in the same present and that means that time does not exist, if this is the case, beings that can live in 4 dimension does not need other matter or creation to change in order to be able to move, in practice they dont care if we move or not (what we perceive as time, if it stops then we stops) they are able to do, to move and to think outside "time" influence hence being practically immortal as they can manipulate not when but how to be: maybe they cant go backwards "our" time but theirs yes, so is like i coud decide to just get older or get younger manipulating the influence that time have on me, I can go back my form and my time, that would explain why I cant go back to when my dad was born, because I control myself in time, not the others, so I could even decide to not flow with time and pratically you would never know that because from my perspective if I do such things i would see the other just standing still and because you cannot control time, for you if I stay for a year without letting my time go and then let go you would not notice because I resume time when I blocked it, but you cant because you dont know how to do nor how it works, im not manipulating your time to block you, simply you dont know yet how to escape time boundaries, neither of us know for now how it really works, this is my theory (I reposted this cause i wanna know what people think about this)
There is a lot of arguing in the comments so to clarify: we kind of live in 3 dimensions, we have the normal 3 and time. Time Is also a dimension of space we just don't perceive it as such because we are constantly being forced through it in one direction and our brains are not made to think about it any other way. Thank you for coming to my ted talk.
Nice idea but the ending of the video is wrong. Time is not the same as the spatial dimension in the 4d space time. Every metric that is a solution of the field equation of einstein has a determined direction of the time, although the equations are invariant under time reversal. This means that backwards physics are consistent with einstein. But not backwards and forwards physics in coexistence!
If time is 2D, and you move back in time and alter it, then there is no paradox. The moment you try to alter the past, it means you just move in the 2D-vector of time that has a slightly transformed 4th dimension, aka slightly different path of history.
Real-life headcanon time: I'd like to think a 4d being would be omnipresent throughout all of existence, but at only one point in time. Furthermore, I'd like to think that 5d beings would be omnipresent within space and time, existing everywhere and everywhen
Most people saying, why don't we move out wide speed?So we could turn into the future going to the past We have eyes. That's what makes us think that cause you might be applying the same as aquagic. With the weekend eyes we have. We're seen in the past, but we've seen it in that past. By one male a second I did. Or even West one gig a second. It could be even worse than that, but you can't go at white speed. So you could travel in the future. Your eyes would just get messed up. Cause you're troubling faster than what you could see.
Idk if I'm yapping or if I'm onto something but you know when you see through a window, you can see through the window and see behind you if it isn't very clean, I think that's related to 4d in some way cuz you can see through object and see behind you. Idk tho I'm autistic
amazing video, was very nice to watch, though from what I know, please correct me if I'm wrong, just commenting my thoughts, the fourth dimension being considered "time" is completely separate to a fourth spatial dimension, like showing 1D movement horizontally while showing a 1D passage of time vertically leads to a 2 dimensional plane, meaning time is a seperate dimension that can just be applied in conjunction with spatial dimensions to show space and time together. Applying this to 3 dimensions, where we have 3 spatial dimensions, and then including a passage of time makes "spacetime" 4D, which is where the misconception that "time is the fourth dimension" comes from. Time is generally only the fourth dimension in the context in spacetime, and is separate from a fourth dimensional space.
There are plenty of theories of time travel that don’t involve the grandfather paradox. There are legitimate reasons why time isn’t the fourth spacial dimension, but the grandfather paradox certainly isn’t why.
