Have you ever thought about how a small change in one event can have large and unpredictable consequences? Most of the time, the smallest change can cause big changes in our lives. For example, if you accidentally spill coffee on your shirt, the stain may be difficult to remove. But if you spill coffee on your shirt while wearing a white dress, the stain will be much more difficult to remove. Scientists have built a theory on the consciences of small changes that states the small changes in the past can have a large impact on the future. This is called the butterfly effect. In this article, we are going to explore the butterfly effect theory and its example. What Is Butterfly Effect Theory and Its Origin? The butterfly effect theory is a model describing the short- and long-term consequences of individual events. The theory was first introduced by Edward Lorenz in the 1960s. At the 139th session of the American Association for the Advancement of Science, Mathematician and meteorologist Edward Lorenz raised a special question. The question was if a butterfly fluttered its wings in Brazil, could that flutter cause a tornado in Texas? Read IKIGAI: The Japanese Secret to a Long Healthy life Many may find Edward Lorenz mentally unbalanced because of this question. The fluttering of the butterfly's wings cannot create any tornado. Also, if there was a tornado, how could it be in Texas? Why not in Brazil. A flurry of butterfly wings may create tornadoes. In fact, this strange theory is called the 'butterfly effect. However, Lorenz did not literally mean that. According to the theory, small changes in initial conditions can lead to large differences in the final outcome. Lorenz used this new theory to calculate the weather forecast.