To forecast the weather, MIT meteorologist David Lorenz used a computer to solve 13 equations that simulate the earth's atmosphere. To examine the results in more detail, he took an intermediate solution, improved its accuracy and sent it back. But when he came back after drinking his coffee, he was surprised: the small difference had turned out to be a million miles! There was nothing wrong with the computer
Lorenz thought he had discovered a new phenomenon -- extreme instability to initial values, chaos, or the butterfly effect, in which an Asian butterfly flapping its wings will spawn tornadoes worse than the wind in America a few months later.
What seems like the smallest thing can cause the group to fall apart, so be careful