according to the big bang theory, after the universe exploded from the singularity, the state of the universe split from the initial "one", resulting in different existing forms and moving states. The measurement of the position difference between things is called "space", and the change of position is measured by "time". Space is represented by length, width, height and size. Usually refers to the four directions (direction) up and down.
Space includes space, cyberspace, ideological space, digital space, physical space and so on, all of which belong to the category of space. Geography and astronomy refer to a part of the earth's surface, which can be divided into absolute space and relative space. Space is made up of different lines, and the lines are made up of different shapes, and the inside of the lines is space.
Space is a relative concept, which constitutes the abstract concept of things, and the abstract concept of things exists with reference to space.