In the famous book "Romance of the Three Kingdoms", there is a very famous plot about Zhuge Liang, that is, the straw boat borrows arrows. Zhuge Liang is known as the embodiment of wisdom in the "Romance of the Three Kingdoms", which can understand astronomy at the top, geography at the bottom, and the state of security in the middle. Many viewers believed that a large part of the reason for the formation of the three-legged situation in the world was that Zhuge Liang supported one of the "three legs" and gave the most correct decision in Liu Bei's decision to the "three Gu Maolu".

Straw boats borrow arrows
That is to say, many people believe that Zhuge Liang achieved Liu Bei. Zhuge Liang's wisdom lies not only in his rich knowledge, but also in his ability to measure people's hearts. For example, in the incident of the grass boat borrowing arrows, Zhuge Liang did not expect that Cao Cao would release rockets? He must have calculated it, but he also knew that Cao Cao would not release rockets. Let's analyze the reasons.
Don't dare to fire
First of all, let's analyze the actual situation of the two sides of the battle. When Zhuge Liang made the plan, the straw was selected on all sides of the ship, in order to facilitate the collection of the opponent's arrows. At this time, if Cao Cao chose to attack by fire, Zhuge Liang's side must have suffered heavy losses, because not only the straw around the ship was flammable, but the ship itself was also made of wood, and once it encountered fire, it was difficult to extinguish. Before leaving, Lu Su also kindly reminded Zhuge Liang that if Cao Cao chose rockets, Mr. Kong would be afraid that it would be difficult to save himself, let alone complete the task. Zhuge Liang advised Lu Su not to be in a hurry, and Cao Cao did not dare to attack with fire.
No rockets
So why didn't Cao Cao choose to use rockets? First: Zhuge Liang is good at astronomy, the date he chose is the day of the fog, Cao Cao's vision is blocked, it is difficult to detect the other party's virtual reality, do not know how many ships the other side has, how many soldiers, and even can not see how many weapons the other side has. The safest way is to choose archery for long-range attacks. Second: If Cao Cao uses rockets, although it will cause damage to the other side's ships, but if the other party breaks the cauldron and uses the burning ships to rush directly to his own camp, then the entire base camp will be surrounded by fire, and it will definitely suffer heavy losses, and the other side will only lose some grass boats. After thinking about these two points, Lu Su expressed great admiration for the wisdom of Zhuge Liang and Cao Cao.
summary
However, the most credible reason is the third point recorded in the canonical history. That's when rockets hadn't been invented yet. Although rockets appeared during the Three Kingdoms period, they were borrowed 20 years later than the time when straw boats borrowed arrows. At this time, Cao Cao wanted to use it and couldn't use it.
bibliography:
Romance of the Three Kingdoms