In short: A small, insignificant event, amplified over time, can lead to enormous and completely unexpected consequences. Originally (in meteorology), American meteorologist Lorenz proposed: "A butterfly flapping its wings in the Amazon rainforest of South America could, two weeks later, trigger a tornado in Texas." The reason: - Initially minute changes - are amplified within a complex system - ultimately leading to drastically different outcomes. Therefore, it's a classic concept in chaos theory. Simply remember: Small things are not insignificant; they create chain reactions, and a single action can have far-reaching consequences.