Can a butterfly fluttering its wings in China cause a tornado in Texas? According to the chaos theory, it is possible. Proposed by a meteorologist named Edward Lorenz in 1960, chaos theory states that complex and unpredictable results will occur in systems that are sensitive to small changes in their initial conditions. So, the fluttering butterfly wings can cause weather changes that can cause upheavals in faraway United States. Although chaotic systems appear to be random, they are not. Beneath the random behaviour patterns are, if not always, order. The chaos theory is used as a model to explain weather patterns, stock market, planetary physics, population growth to epidemics.