What does the butterfly effect mean?

Butterfly effect means that in a dynamic system, small changes in initial conditions can drive a long-term huge chain reaction of the whole system. This is a chaotic phenomenon. Edward lorenz, an American meteorologist, analyzed this influence in the paper 1963 submitted to the New York Academy of Sciences. "A meteorologist mentioned that if this theory is proved to be correct, a seagull flapping its wings is enough to change the weather forever. In his later speeches and papers, he used more poetic butterflies. The most common explanation for this effect is that "a butterfly flapping its wings in Brazil can cause a tornado in Texas a month later." "The butterfly effect is usually used in weather, stock market and other complex systems that are difficult to predict in a certain period of time. This effect shows that the result of the development of things is extremely sensitive to the initial conditions, and the smallest deviation of the initial conditions will cause great differences in the results. Sociology uses "butterfly effect" to explain a bad tiny mechanism, which will bring great harm to society if it is not guided and adjusted in time, and is dubbed "tornado" or "storm"; A good micro-mechanism, as long as it is guided correctly, will have a sensational effect after a period of efforts, or it will be called a "revolution." Outline of the film story: The story introduces the unexpected structure of the butterfly effect, and proves that even trivial changes may bring unstoppable catastrophe! The story tells that Ivan (played by ashton kutcher), a teenager, often faints and loses short-term memory because of childhood trauma (this amnesia phenomenon is actually a subconscious psychological mechanism of self-protection). Because he lost important memories when he was young, all the important events in his life seemed to disappear into a black hole. When he grew up, he wanted to get rid of the shadow of his childhood. In an accidental accident, he found a mysterious time travel method, which can go back to the past and let him occupy his childhood body. Although he can't explain this phenomenon, he decided to seize the opportunity, change the past, reverse Gan Kun, and try to correct the mistakes that have happened, hoping to avoid the broken life at present. However, can he really change the past? Can "fate" be mastered by him? He gradually discovers that every time he makes any effort to go back to the past, his present life will be affected and fluctuated, which will have an unpredictable impact on himself and his beloved woman (played by amy smart), leading to more chain reactions than expected! All these changes, like snowballing, eventually caused irreparable damage. So, he went back to the past again and again, desperately racing against time, trying to make up for such damage again. Amy smart, the heroine of this film, is a challenging character with rich performances and various shapes. She and ashton kutcher played a couple, which attracted the close attention of Ashton's real girlfriend demi moore. Ivan, played by ashton kutcher in The Butterfly Effect, was destroyed by the shadow of his childhood. He said, "Ivan doesn't know who he is. He has long forgotten his traumatic memory, but in the whole film, he gradually finds that he doesn't need to like himself at all. On the Butterfly Effect The "butterfly effect" in the "chaos theory" refers to tiny and unremarkable events or phenomena, which may play an influential role in unpredictable chaos. For example, a butterfly flapping its wings in Beijing, China, will slightly change the air pressure, and these disturbances will change the air pressure in nearby places, so it spread widely. A month later, due to the change of air pressure, it began to rain in Chicago, USA, across the Pacific Ocean. Meteorologist Lorenz put forward a paper entitled "Can a butterfly flap its wings and cause a tornado in Texas?" ? This paper discusses that if the initial condition of a system is a little worse, its result will be very unstable. He called this phenomenon "the butterfly effect". Just like we roll the dice twice, no matter how deliberately we roll, the physical phenomena and points thrown twice are not necessarily the same. Why did Lorenz write this paper? It all started in the winter of 196 1. At that time, he operated the meteorological computer in the office as usual. Usually, he only needs to input meteorological data such as temperature, humidity and air pressure, and the computer will calculate the possible meteorological data at the next moment according to the built-in three differential equations, thus simulating the meteorological change map. However, on this day, Lorenz wanted to know more about the subsequent changes of a record. He re-entered the meteorological data at a certain moment into the computer, so that the computer could calculate more subsequent results. In those days, the speed of computer processing data was not fast enough, so it was enough for him to have a cup of coffee and chat with his friends for a while before the computer worked out the result. An hour later, the result came out and he was dumbfounded. He compared the original information with the current results and found that although the original data were similar, the later data were more different, just like two completely different information. The problem is not the computer, but the data he entered is 0.000 127. These subtle differences make a world of difference, which also shows that it is impossible to predict the weather accurately for a long time. Because of the small differences in the initial stage, it will really cause a chain reaction and unexpected and amazing results.