@liuyingyun
The basis of all predictions is categorization, the complete categorization of all possible scenarios.
It may be said that after classification and the exclusion of the impossible, the final result is accurate. This is the rusty idea that any exclusion is equivalent to a prediction, and every exclusion of a classification makes the final so-called precision become less accurate, and finally there is no escape from the probability. ——Chang's theory·prediction about the future(Lesson 68)