Suppose we could enter the four dimensional space, what would we see?

Guessing will see the repetition of countless scenes in three-dimensional space, and can disappear in one part of the three-dimensional space and then appear in another.

In mathematics, it is easy to deal with high-dimensional cases, but by adding an independent variable to the Cartesian coordinate system; In physics, there are theories that predict the existence of high-dimensional space, such as the supermembrane theory (M-theory).

Although no one has ever entered the four-dimensional space, we can combine some realistic analogies to guess what we will see after entering the four-dimensional space.

For example, if we regard the entire surface of the earth as a two-dimensional plane, then we humans are creatures living in this two-dimensional plane, and for the human world, we will think that the human world is limited, and there is no boundary, and the world has no center.

But once we come to space, it is equivalent to ascending to a higher dimension, and we can intuitively see that the surface of the earth is the human world, and the earth itself is a sphere, and there is a geometric center, but this center does not fall on the surface of the earth.

Then the four-dimensional space may have a similar effect compared to the three-dimensional space, guessing that the person who enters the four-dimensional space can see our entire three-dimensional universe, and there may be many three-dimensional universes next to our universe, maybe only a few millimeters apart, but because of the different dimensions, the information transmission between the various universes cannot be carried out.

It is also speculated that in the four-dimensional space, a person can suddenly disappear in the three-dimensional space, or only a part of it, for example, his lower body disappears in the three-dimensional space, and then appears in another place in the three-dimensional space, as if the person is cut into two parts, but the two parts are still a whole in the four-dimensional space.

Since the complexity of information in the four-dimensional space is much higher than that in the three-dimensional space, people who guess into the four-dimensional space will see the infinite repetition of things in the three-dimensional space, as shown in the movie "Interstellar".

In physics, there is a theory called M theory, which describes the existence of the fourth dimension, the three-dimensional space is a "superfilm", countless superfilms fluctuate in the four-dimensional space, when the adjacent superfilms collide, the universe is large in the three-dimensional space, thus forming our current three-dimensional universe.

Does a four-dimensional space exist? What would happen if humans entered?

See inside a three-dimensional object. Each dimension allows you to see the whole picture of the previous dimension, and in the fourth dimension, you can see through the internal structure and operating mechanism of the three-dimensional object.

When we enter the four-dimensional space, the creatures in the three-dimensional space cannot feel our existence. We can see what's happening at each point in the timeline, with no past or future, and we can see the flat interior of all the 3D objects.

In fact, as creatures living in the three-dimensional space, we humans cannot accurately experience the full appearance of the four-dimensional space in any way.

First of all, it is clear that time is a constant dimension and does not count towards what is commonly referred to as the spatial dimension.

Secondly, three-dimensional is the length, width and height, and it is also the xyz of the coordinate axis, which is what we currently call the entire universe.

The fourth dimension is the plane on which the entire universe is based, which can be approximated as a geometric three-dimensional coordinate system drawn on a piece of paper, and that paper is the fourth dimension (plane).

The fourth dimension wraps around the entire universe, the universe is the egg, and the fourth dimension is the egg skin. There is a special explanation here, that is, when the energy intensity of a certain point in the universe exceeds the bearing limit of the plane, then the plane will collapse, and the breakage point will become the material exchange channel between the three-dimensional universe and the plane, and the so-called entry into the four-dimensional space is also the meaning.

The passage to enter the four-dimensional space is said, and the following is the way to enter. This is an example of a pond deflating water and a balloon deflating, but the three-dimensional universe is large enough that it will take a long, long time for the existing passages to be able to clearly observe the loss of matter.

The broken matter is regenerated into another three-dimensional universe in the four-dimensional plane, which inherits (part) of the matter of the old universe, and may also happen to connect to the rupture of other three-dimensional universes, forming a porous water injection situation. The metaphor of this is the neuron of the human brain, the three-dimensional universe is the neuron itself, and the channel is the neuron dendrite. A plane is made up of a large number of three-dimensional universes (neurons), and the plane is the brain.

Everything in the three-dimensional universe, from the beginning of the so-called cosmic ** to the final extinction, is actually just a nerve impulse.

We human beings are extremely small and insignificant in the three-dimensional universe, let alone break through the three-dimensional and enter the fourth dimension. Just like a little bit of cytoplasm in a neuron (which has been exaggerated many times to analogy with humans) flows out of neuronal cells and into the brain, the result is that it is removed by the brain's own cleaning system and excreted as metabolic garbage. This is completely out of the realm of human life and is not necessary to discuss it.

Don't listen to their nonsense, in fact, in terms of three-dimensional space, time is just a concept made up by human beings, time is different in different places where you stand, and the concept of time between humans and animals is also different, time is that human beings use one movement to describe another movement! If you think about it, does two-dimensional space really exist? A line, a plane, that's an illusionary state, it doesn't actually exist at all.

In addition, scientists have discovered how similar the structure of planets and atoms in the universe is! Astound!

If you could walk into a four-dimensional space, what would you see? First of all, let's take a look at what happens to a flat person in a two-dimensional space when he comes to a three-dimensional space. Because the flat man lacks the latitude support of the z-axis, he will not be able to stand in three-dimensional space and will fall.

In the same way, if you enter the four-dimensional space from the three-dimensional space, you will also fall because of the lack of the fourth dimension, which will cause you to be unable to stand in the four-dimensional space, and it is also possible that the atoms that make up your body will be pulled by the fourth-dimensional force and break and disintegrate. Now let's assume that you can stand up in a four-dimensional world and still be alive, will you see four-dimensional objects?

Objects in four-dimensional space are called superbodies for the time being, such as a cube in three-dimensional space, and in four-dimensional space we call them hypercubes. We know that the surface of a cube in three-dimensional space is composed of six two-dimensional planes, and the surface of a hypercube in four-dimensional space is composed of eight three-dimensional cubes. The front cube is blue, the back cube is yellow, and then there are 6 flattened cubes that make up the surface of the hypercube.

We also use the flat man in the two-dimensional world as an example, the flat man never sees the face in the two-dimensional world, only sees the dots and lines, when he comes to the three-dimensional world, because he lacks the help of the z-axis, his perspective is still two-dimensional, so the scene that the flat man sees is still the two-dimensional world, unless he becomes a three-dimensional human.

In the same way, if you enter a four-dimensional space from a three-dimensional space, even if a four-dimensional hypercube is placed in front of you, because you lack the help of the fourth dimension, you will still see a three-dimensional picture, unless you have a third eye, which is in the fourth dimension, so that you can see the four-dimensional objects of the four-dimensional world.

Four-dimensional space is different from three-dimensional space, which refers to the standardized Euclidean interior space, which can be extended to n-dimensional; Four-dimensional space-time refers to a misunderstanding of Minkowski's spatial dimension. As a three-dimensional object, people can understand the four-dimensional space-time, but they cannot understand the existence of the four-dimensional space, because people belong to the third space and time microorganisms. It is often said that the fourth dimension of time is the time dimension under the fourth dimension of space-time.

The fourth dimension of four-dimensional space refers to space and time with the same concept as x, y, z.

As everyone knows, the four-dimensional space-time is not a normative Euclidean interior space, and the essence of time is the speed of narrative movement. Zero-dimensionality is a point with no length, total width, or height. A one-dimensional line is made up of thousands of points, only the length, not the total width and height in it.

The two-dimensional is made up of thousands of lines and faces, with length, total width, and no lead skin height. A three-dimensional body is a body composed of thousands of faces, including length, total width, and height.

The level is the total number of abstract concepts that are "connected", and the abstract concept of "connected" refers to the abstract concept formed by the connection of two abstract concepts, such as the total area. Thus the fourth dimension is composed of four connected abstract concepts, the fourth abstract concept is real time, and the fourth is connected to numerical velocity. For the four-dimensional space, it is widely believed that the grip of the indoor space has central symmetry, or axial symmetry.

For example, if a person in 3D space enters 4D space and "turns" it in a modest way and then returns to 3D space, then he will be 'centrically symmetrical' (this is naturally not possible in 3D space, except in the case of a 3D version of the Mebius strip).

Naturally, since no one enters the four-dimensional space, this is just an assumption derived from the comparison of the two-dimensional space, and it is impossible to carry out authentication. However, the analysis of the timeline and the situation of a moment of time travel is consistent with this. Symmetry cannot be carried out in two-dimensional space from a schema in two-dimensional space, but when entering three-dimensional space, it can be returned to two-dimensional space according to the development rotation, and symmetry can be completed, because rotation cannot be carried out in two-dimensional space, only rotation or movement.

The four-dimensional space is the Euclidean interior space, which can be extended to the n-dimension, in fact, the four-dimensional space refers to the time dimension under the four-dimensional space-time.

A four-dimensional space may just be a virtual space, there is no such space, and anything can happen in such a space.

Four-dimensional space is a concept of space-time. In simple terms, any space with four dimensions can be called a "four-dimensional space". However, most of the "four-dimensional space-time" mentioned in daily life refers to the concept of "four-dimensional space-time" mentioned by Einstein in his "General Theory of Relativity" and "Special Theory of Relativity".

According to Einstein's concept, our universe is made up of time and space. The relationship between time and space is that in the structure of space, there is an additional time axis in addition to the three axes of length, width and height of ordinary three-dimensional space, and this time axis is a real value axis. To determine the space of four coordinates (three coordinates of space and one coordinate between time and silver) is required for everything.

Four-dimensional space is a whole composed of three-dimensional space and time.

I think the four-dimensional space is a kind of 3D space, because this kind of space is very illusory, and it always gives people a very empty state.