Dimension? Is there really a higher dimension than ours?

Each dimension has its own unique attributes, so what is a dimension? Where does the dimension exist? Is it independent space or inclusive space?

One: zero dimension, one dimension, two dimensions, three dimensions.

A zero-dimensional space is a point, an infinitesimal point that does not occupy any space, and a point is a zero-dimensional space. Countless points are arranged to form a line. A straight line is a one-dimensional space, countless lines form a plane, and a plane is a two-dimensional space. Countless planes are juxtaposed to form a three-dimensional space, that is, a three-dimensional space

Second: the fourth dimension: time

The three-dimensional world is static. When the three-dimensional world changes based on time, four-dimensional space is produced. If time is regarded as an axis, any point on this axis is a three-dimensional space, that is, countless three-dimensional spaces are assembled according to the time axis to form a four-dimensional space.

In four-dimensional space, time is linear. Although the future is unpredictable, there is only one source and one future. No matter what will happen in the next second, there is only one coming future.

Similarly, after ignoring the three-dimensional properties, we will find that any four-dimensional object is represented as a line segment on the time axis.

Three: Time plane

Suppose countless time axes are assembled together, what will it constitute?

A time plane. This time plane is a five-dimensional space, which is composed of countless four-dimensional spaces along an axis.

However, please don't ask me what the standard of this axis is, because I am a four-dimensional life, and I can't make a standard for a phenomenon that I can't observe at all.

But we can imagine that an object in five-dimensional space should span different time axes. At any time line, you can only observe some of them.

Four: Jump between time axes.

Suppose a four-dimensional life wants to jump to other time axes, then it must first become a five-dimensional life. Obviously, in the process of jumping, it will appear on two time axes at the same time, which has met the requirements of five-dimensional life.

This fact is expressed in another sentence: in four-dimensional space, time is linear, and the direction and process cannot be changed. Only in the five-dimensional space can you change the direction and process of time.

So: you didn't change history, but changed your current timeline.

Five: Infinity and Eternity

Although human beings can imagine the concept of infinity, we can't see what a five-dimensional world looks like.

Although human beings can understand the concept of eternity, we cannot create an eternal thing.

Although I can conceive a model of the whole five-dimensional space, I don't know what you, my love, are thinking now.

Although I can't create eternal things, at this moment, my thoughts about you have become eternal.