Zhuge Liang's clever calculation is mainly manifested in his ability to make full use of the weather; Geography: human nature:

Zhuge Liang in history is indeed an expert in managing internal affairs. However, using the weather to borrow arrows and using the empty city plan of human nature were all written by the romance of the Three Kingdoms, which did not happen in itself. It was actually Wu Dong's idea to borrow an arrow from a straw boat.

Judging from his ability to analyze the world situation, he should be very concerned about and understand the current situation and have a deep understanding of the social situation at that time.

As for the legendary knowledge of heaven and earth, it is not excluded that he can really see whether it will rain these days from the shape of clouds. This ancient man has been studying, but he can accurately predict. Personally, I think it is sheer nonsense. Now that technology is so high, weather forecasts are being spit out, not to mention ancient times.

If we say unofficial history, it can be said that it is the weather, the flooding of Zhong Da can be said to be geography, and it is human nature to capture Meng Huo seven times.