Why do butterflies flap their wings to cause tornadoes?

The butterfly effect was put forward by meteorologist Lorenz 1963.

Discovery by meteorologist Lorenz of Massachusetts Institute of Technology. In order to forecast the weather, he used a computer to solve the 13 equations that simulated the earth's atmosphere, in order to improve the accuracy of long-term weather forecast by using the high-speed operation of the computer. In an experiment of 1963, in order to examine the results more carefully, he took out an intermediate solution of 0.506, improved the accuracy to 0.505438+027 and sent it back. He went to the cafe for a cup of coffee, and when he came back, he was surprised: there was not much difference, but the result was a hundred thousand miles away! After checking again, I found that there was nothing wrong with the computer. Lorenz found that because the error will increase exponentially, in this case, a small error has caused great consequences as it goes on. He later identified this as "extreme instability to the initial value", namely "chaos", also known as "butterfly effect". The flapping of Asian butterflies will make a tornado worse than the strong wind in the United States in a few months!

The reason is that the movement of butterfly wings leads to the change of the surrounding air system, producing weak airflow, which in turn will cause the corresponding change of the surrounding air or other systems, causing a chain reaction, which will eventually lead to great changes in other systems.