Is the so-called star-gazing fortune-telling in Romance of the Three Kingdoms reliable?

The description in the novel has elements of artistic processing, but there are indeed fortune tellers who look at the stars. The Book of Changes: The sky hangs like an elephant, and the saints look at it when they see good or bad luck. Zhuge Liang's greatness lies firstly in his economic, political and military talents, and secondly in his fortune telling. The ancients believed in the unity of man and nature, and predicted the future in the form of fortune telling, which was also the unity of man and nature. It is necessary to comprehensively analyze all aspects of information. For example, if you want to predict that Kongming's Northern Expedition will fail, you don't have to tell a fortune. Obviously, the strength gap between the two sides is too big. It is a myth that the ancients can predict the future by watching the stars, which is also a misunderstanding of the unity of man and nature. Legend has it that whoever sees the stars fall will know who has an accident, which is more likely to be "wise after the event" produced in circulation. In addition, the results of fortune-telling predictions are often general and can be interpreted in many ways. I can't say that they are reliable, but they are certainly not completely unreliable. Nowadays, it is rare to see the sky at night to predict future events, not because of pollution (many stars can still be seen far away from city lights), but because the Book of Changes is so difficult that people can hardly learn it now, let alone look at the sky. In this regard, the constellation theory is obviously for the sake of users, and primary school students can understand it. And you can't see the stars, and it doesn't affect the accuracy of horoscope.