The ancients always "watched the sky at night and used their hands to index". Can they really "predict"?

The ancients looked at the celestial phenomena at night, and they could pinch and calculate, but they didn't really predict. They don't like to use hand index, but come to the conclusion that this person is delicate, intelligent and observant. It is TV plays that make their characters more mythical.

During the Spring and Autumn Period and the Warring States Period, Qi Huangong and Guan Zhong of the State of Qi conspired to attack the State of Ju, and this conspiracy was spread by Chinese people before it was announced. Qi Huangong felt very strange. He thought what he did was confidential, but he let the cat out of the bag. They speculated that it was the man who came for military service that day, so they sent someone to look for him. After careful inquiry, it turns out that everything is Dong Guoya's conclusion through his own observation. He heard that there were only three expressions on Guan Zhong's face, namely, the joy when enjoying a good musical instrument, the sadness when indifferent, and the anger when leading troops to fight. His mouth shape. Ordinary people who will observe and care about these.

There is also our god Zhuge Liang, who can know the wind and rain by observing the sky. In fact, these can be explained by literature. There was no weather forecast in ancient times. According to the different seasons, the change of stars, the size of fog and the change of wind can't be seen through a lot of literary foundation and observation practice. Zhuge Liang observed the stars to get the wind direction, the accurate time and the distance of people's psychological changes. He knew that Cao Cao only dared to shoot arrows, and he dared not go forward.

From this perspective, the pinch index is not so simple. Every step is an extremely subtle embodiment, so they are omnipotent immortals. But at that time, there was no mobile phone to know the weather at a glance, and there was no mother-in-law. I could only observe, ponder and draw conclusions.