Why didn't Zhuge Liang calculate that a rain saved Sima Yi in Romance of the Three Kingdoms?

Zhuge Liang is an all-rounder, who knows both the right time, the right place and the right people, and five lines of gossip and Taoism. The most prominent thing is that when I was in Battle of Red Cliffs, I didn't care if I could borrow the arrow of the grass boat and burn Chibi by the southeast wind. In the fifth Northern Expedition, Qin Lang was killed by Wei, and Sima Yi was scared off by the method of avoiding armour and driving out six people and six corpses.

However, it is such a "god man" who can "call the wind and call the rain", but he did not calculate that it would suddenly rain during World War I in Shanggu, so that Sima Yi and his son could escape. So why didn't Zhuge Liang work out the heavy rain?

It's simple. The man of God is also a human being. Zhuge Liang was able to show "calling the wind and calling the rain" in Battle of Red Cliffs. In fact, to a great extent, Zhuge Liang learned to observe the weather and understand the rules. You know, Zhuge Liang lived in seclusion in Nanyang, Jingzhou, and devoted himself to farming before becoming a counselor of Liu Bei's army.

As a farmer who works at sunrise and rests at sunset, if he wants to have a good harvest, he must know when to plow, when to sow and when to sow. After all, Zhuge Liang is the kind of person who does one thing alone. Therefore, Zhuge Liang will not farm casually like Tao Yuanming.

Therefore, after years of farming experience, Zhuge Liang must have learned to observe the weather and learn to sum up the rules. In addition, Nanyang is not far from Jiangdong. As long as Zhuge Liang understands and summarizes, and then goes on a field trip, he is bound to sum up the achievements of fog and southeast wind.

However, the valley above is not. The valley above was an excellent place for Zhuge Liang to ambush when he entered Cao Wei with a brand-new route during the fifth Northern Expedition. In other words, Zhuge Liang had no time to observe and summarize the local climate.

At the same time, because the upper valley was in the shape of gourd valley, and it was autumn at that time. In this case, the Shu army led by Zhuge Liang set fire to the valley above. When the cold and hot air currents rush to a certain extent, it is inevitable that the local rainstorm will suddenly appear.

Therefore, it was a sudden gale and downpour. In this case, even if Zhuge Liang is a man of god, he can't understand this scientific means in advance.

Finally, Zhuge Liang is actually a person who believes in metaphysics. At that time, after the successful conquest of Meng, the army was suddenly stopped by Lushui on its way back to Korea. Lushui is rough, and there seem to be countless ghosts in the smoke. Meng Huo said it was a disaster, and it took 7749 heads to calm it down.

But Zhuge Liang said that he couldn't kill evil any more, so he made his own steamed bread and went to the Lushui River to worship himself before returning to Beijing. The same is true of the Battle of Shanggu. Zhuge Liang made all the protection in advance before the war. Only Wei Yan and Ma Dai lured Sima Yi into Shanggu could the fire be lit.

But it was such a rain that saved Sima Yi. Then, Zhuge Liang saw that things could not be done, and he could only sigh: "Arrogant, arrogant."