The concept of "involution" was originally used to analyze the "involution" of agricultural society, but now it is used in all walks of life, and has formed a wide range of social knowledge, such as education industry, medical industry, etc. The resource endowment of each industry is limited in a certain period of time, and in order to compete for these limited resources, people often do their best. For example, in order to prevent their children from losing at the starting line, parents will desperately provide their children with People sign up for various "interest classes", and the same is true for the college entrance examination. The admission rate (resource endowment) of the college entrance examination is often a given, but the competition is fierce... All these reflect the "differentiation" of all walks of life in society. "Involution", this "involution" is divided into two types: "conscious" and "unconscious". In most cases, we fall into "involution" "unconsciously", and the "involution" at this time appears as a kind of competition; but in other cases, people realize that they have fallen into "involution", And they want to get rid of the "involution", but they are always watched by the eyes of "others" and merged into the tide of "involution" again. The original meaning of the concept of "involution" included the staged characteristics of "high level", but with the "exit" of the concept of "involution", the "high level" characteristics of "involution" have gradually changed. "Low-level repetition" has become a new feature of the "involution" effect.