Why do they call it “The Butterfly Effect”?
because of the Chaos Theory which is commonly referred to as The Butterfly Effect The phrase refers to the idea that a butterfly’s wings might create tiny changes in the atmosphere that may ultimately alter the path of a tornado or delay, accelerate or even prevent the occurrence of a tornado in a certain location. The flapping wing represents a small change in the initial condition of the system, which causes a chain of events leading to large-scale alterations of events. Had the butterfly not flapped its wings, the trajectory of the system might have been vastly different. While the butterfly does not cause the tornado, the flap of its wings is an essential part of the initial conditions resulting in a tornado. Which in reference to the film is referring to how the smallest changes he makes in the past has these gigantic repercussions in the future. They make his life entirely different.
