The so-called "involution" of the college entrance examination is an extreme exam-oriented and exam-oriented education model, that is, the so-called "learn from the dead as long as you don't die" and the so-called "race against time and fight hard" model. Just like agricultural production just now, your energy and time are limited. If you infinitely increase this kind of input, this kind of load, this kind of training of brushing questions, its output is not positive, that is, it has a boundary. After reaching this limit, no matter how much you invest, there will be no good results, even some negative situations (results), which will lead to people's health damage and mental depression.