All 7 Dimensions Explained in Detail (From 0D to Infinity)

only one dimension has vanished from reality depth your body has become absolutely flat you can’t turn around and your blood has stopped flowing because your veins no longer have volume but these are minor details compared to what awaits you in the fourth fifth and seventh dimensions today we’ll drag your body from the zeroth dimension to the seventh where the human brain simply shuts down one important note before we go further the higher we climb the more we’ll use dimensions as a metaphor to visualize levels of reality that we cannot see directly but first the basics what exactly is a dimension forget about portals and magical realms in the simplest sense a dimension is an independent direction or a degree of freedom used to define an object’s position renee Deart gave us a convenient language for this in the 17th century through the coordinate system when we fall to the very bottom into the zeroth dimension you have exactly zero directions to move if we forcefully squeeze a body into the zeroth dimension no shape remains only a coordinate a mathematical point with no size in such a world there’s no space to move and the very idea of moving loses its meaning absolute claustrophobia you seemingly exist but to the rest of the universe you simply don’t exist let’s take a step up to the first dimension we are granted exactly one degree of freedom you become an infinitely thin line now you have length and you can only move forward or backward and that’s it you can’t turn around or bypass an obstacle if someone else appears on this axis in front of you you are simply stuck forever the concepts of up or sideways simply don’t exist here you aren’t just stuck on a line you have become a creature for whom any obstacle is the end of the universe we take this line and stretch it at a 90° angle welcome to the second dimension the plane you now have length and width your entire world looks like a drawing on a piece of paper but the most interesting part here is how you perceive this world in 1884 mathematician Edwin A abbott gave us a useful way to picture this for simplicity’s sake remember this main rule a creature usually perceives the world through projections and cross-sections one dimension lower than itself if a 2D character on paper looks at a drawn circle they won’t see a circle imagine putting your right eye at the level of a table surface and looking at a coin lying flat from the side you won’t see a round shape you will see merely a flat horizontal line in a flat world absolutely everything looks like line segments of varying lengths to understand that what lies ahead is indeed a circle and not a square a flat creature would have to physically walk around its perimeter only then could it understand the object’s true shape if this 2D character draws a square house around itself it will be absolutely safe from other flat beings to them it has disappeared behind a wall but we beings from a 3D world look at this piece of paper from above we see everything simultaneously the walls of the flat house and the character inside it we can simply lower a finger from our third dimension and touch the character without breaking the walls your house might be a fortress against your neighbors but it’s an open box to a being from above keep this paradox in mind we’ll need it shortly let’s pull this plane upward at a 90° angle enter our cozy three-dimensional world physicist Paul Aaronfest demonstrated that if there were more than three spatial dimensions the familiar laws of gravity would change so drastically that stable planetary orbits and atoms would become impossible here depth appears but due to that very rule of vision we live in a total illusion strictly speaking our eyes do not receive a ready-made 3D picture a flat 2D image falls onto the retina and the brain reconstructs the sensation of depth using cues the disparity between our eyes perspective and shadows you see a closed safe but you don’t see what’s inside look at your monitor you can’t see what’s behind it until you walk around it in a 3D world we only see the outer shells of things to see the inside we must break the shape and now let’s step into the fourth dimension we add another coordinate independent of the three spatial ones we can’t display it on a screen as a normal direction but in physics time often plays the role of this coordinate in 1908 Herman Mancowski proposed viewing space and time as a single unified structure in 4D time ceases to be an abstract flow the easiest way to grasp this is through the timeline in video editing software the viewer watches the video frame by frame while the creator sees the whole strip of the video laid out on the screen at once a 4D being looks at our threedimensional universe exactly the same way we looked at that flat piece of paper it sees everything all at once if a 4D being can interact with different segments of time it doesn’t need to break open the safe today it simply reaches back to the moment yesterday when the door was open to you trapped in the now the object will simply vanish from the locked safe so what happens to your body you’re no longer a human living life second by second since time is now a physical direction your body is permanently stretched along it imagine a giant continuous space-time worm made up of millions of your copies at one end of this structure is a baby being born further along this long body rise through space here it is walking to school here it is sitting on a chair right now and finally it ends as an old person taking their last breath in 4D there’s no past or future there is no movement there’s only this giant frozen monolith of your life from beginning to end to a fourdimensional being your life is not a story it is an object but the 4D monolith is just one rigidly fixed line let’s take a step into the fifth dimension and here we transition from strict geometry into a convenient popsai metaphor what could the next direction be after time possibility the axis of alternative outcomes in quantum mechanics this is Hugh Everett’s many worlds interpretation in 4D you had only one destiny but if we imagine every event and every choice as a crossroads then in the fifth dimension your temporal worm splits in two at the moment of every outcome then again and again your body in 5D turns into a colossal infinitely branching fractal a massive tree as it were a perfect example of how this feels is the video game The Altars where every new clone at the base is you having taken an alternate branch or the massive narrative flowcharts in games like Detroit: Become Human here the branch where you become a millionaire the branch where you’re never born at all and the branch where you’re watching this video right now all exist simultaneously for a five-dimensional being there’s no concept of fate or inevitability it sees this entire fractal of your lives as a single hole you’re no longer one person you are an entire forest of all the people you could have become moreover to it these alternate realities are not separate worlds they are simply different directions in space but even this infinite fractal of lives is constrained by the laws of our physics so we collapse your entire giant tree of probabilities back into a single point and pull another perpendicular axis out of it welcome to the sixth dimension in some versions of string theory entire landscapes of possible universes emerge for this video we can picture it as the next level no longer different destinies within the same physics but entirely different physics altogether here lie universes with completely different fundamental constants worlds where gravity is a thousand times stronger worlds where the speed of light is different and worlds where atoms fundamentally cannot bond together and at this stage the concept of anatomy simply loses its meaning a body is only possible where the right laws exist such as the right chemistry stable bonds and enough time for processes to unfold in the sixth dimension nothing is left of your body you’re no longer human you’re no longer a branching worm you become pure information an abstract mathematical structure that links the concept of your existence across all possible variants of physical laws to reach the seventh dimension we take this entire infinite network of 60 universes with different laws of physics collapse it into a single point and we stop the seventh dimension in this scenario is no longer a specific physical axis but a final metaphor the space of all logically possible realities let me say that again the space of all logical possible realities in the seventh dimension the very concept of existence or an event loses its meaning this space contains absolutely everything simultaneously all possible variants of universes all conceivable and inconceivable laws of physics all timelines from the beginning to the end of time there is no action here action requires change and change requires familiar time but in 7D nothing is created how you doing you know what i’m in the middle of recording can I call you back in a few minutes okay bye but in 7D nothing is created and nothing disappears because everything that could logically exist is already permanently locked into this structure it’s not a process it’s an absolute infinite frozen map of everything it’s not just a library of books it is a library of all possible alphabets all languages all stories and all laws by which those stories could be written so why don’t we go further because at this stage human logic reaches its limit the mathematics of string theory allow us to calculate the 8th 10th and 11th dimensions but there these axes represent microscopic curled up spaces describing them in macroscopic terms is physically impossible our brains evolved to hide from predators in a three-dimensional world not to comprehend absolute infinity so let’s come back exhale and look around the walls of your room are solid again your time moves only forward and everything inside the closed safe or behind your back remains a mystery to you because you only see the flat 2D shell of things we live in a very narrow limited but perfectly balanced geometric incubator enjoy this 3D illusion and before your temporal worm reaches its end subscribe to the channel see you next time