Everything can be explained by the golden mean, the essence of China. Smart should be just right.
Besides, an idiot is not necessarily an idiot. Many times, an idiot can do things that a normal person can't.
Whether it is a genius or an idiot, it is decided by people. As long as people's thinking habits are basically in line with ordinary people, and geniuses do very right things under the premise of being very inconsistent, idiots do very wrong things under the premise of being very inconsistent.