life

What is the Butterfly Effect? What Are The Examples?

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About 45 years ago, at the 139th meeting of the American Science Development Association, Edward Lorenz asked a question: “Could a butterfly in Brazil flapping its wings cause a hurricane in Texas?” The answer to this question is probably different from what you have heard so far. This concept, called the butterfly effect, has been adopted by popular culture.

“A butterfly flaps its wings on a flower in China and causes a hurricane in the Caribbean,” Robert Redford told his colleague Lena Olin in the 1990 film Havana, in which he played the role of Jack Weil. As in the line, this idea is used to emphasize how important very small events can be. Lorenz, a meteorology professor at the Massachusetts Institute of Technology, never wanted it to be used in this way when he came up with this idea. What he was trying to explain was the opposite.

By asking this, Lorenz aimed: Some complex systems were greatly affected by even the small changes in their initial conditions. It could show that these systems can produce very different results and exhibit unpredictable behavior. Due to the sensitivity of these systems, their results cannot be predicted.


If we knew all the physical laws of nature then nothing would be uncertain.


The understanding put forward by Lorenz questioned the laws introduced by Sir Isaac Newton in 1687, which suggested that nature is a probabilistic mechanical system (that is, we live in a universe that works as smoothly as the clockwork). Lorenz challenged Pierre-Simon Laplace, who claimed that unpredictability had no place in the universe and said, “If we knew all the physical laws of nature then nothing would be ambiguous. So we could see the future clearly like a mirror. ” said.

Lorenz discovered that this decisive interpretation of the universe cannot explain the errors humans make in the measurement of physical phenomena of nature. He observed that solving nature’s interconnected cause and effect relationships are very complex. He began using different initial conditions in his parallel meteorological simulations, where he predicted and used the most likely outcomes in complex systems such as weather conditions.

This method is still used to generate our daily weather forecast. If we could start life over, would the result be the same? Interestingly, in the article “Anyone Can Be A Troll”, Justin Cheng, Cristian Danescu-Niculescu- Mizil, Jure Leskovec, and Michael Bernstein; explains that the likelihood that ordinary people will exhibit certain online behaviors depends on certain conditions. And he says that these terms neither guarantee nor eliminate the possibility of being an attacker.

At the same time, Yiğit Mengüç in his article “Smart and Soft” published in Technologie; It describes the unique conditions in which robots with soft bodies might be likely to be developed. Lorenz died in 2008. Lorenz deserves to be celebrated because of the lasting contribution of complex systems to our understanding.