Many of us adults have read too much news about aliens, but have only ever treated it as a topic of conversation after dinner, knowing that it is too far away from us. However, so many adults at least remain calm about Zhang Xiangqian's choice and will not easily say no, because Zhang Xiangqian's knowledge is systematic and can face questions from various angles and dimensions. He can form his own system and his logic is self-consistent. In addition, Zhang Xiangqian has a pattern. He chose to give up the copyright and bluntly hoped that everyone would "plagiarize" his work. Moreover, Zhang Xiangqian is a person of true temperament. He would say "fuck" in the live broadcast room. According to many people's cognition, the more such true temperament a person has, the more likely he is to accomplish great things. Many "professors" who want to establish their own personality avoid the question and hesitate on many core issues because they lack confidence. If Zhang Xiangqian does not have a real foundation, many words cannot come out of his mouth.