YYU: If, for example, you interview a thousand people on the topic: What it means to be a normal person, you get a set of qualities that a person must have in order to be called a normal person. However, if the same thousand people are tested on this set, it turns out that most of them do not have all the necessary qualities. That is, in other words, most people will be conditionally abnormal. But this is not all, according to the theory of statistics, this majority will just fit into the normal distribution, and therefore they will be considered normal, while a minority of people who meet absolutely all the requirements of normality will be a deviation, or simply abnormal.