The Butterfly Effect Ending, Explained

The 2004 science-fiction/thriller film The Butterfly Effect is famous for its entertaining and, at times, corny premise. It follows Evan Treborn (Ashton Kutcher), a young adult who travels back in time to change the terrible and dark events of his and his friends’ past. He learns about The Butterfly Effect, a theory that even small alternations can cause massive ripples. According to Britannica.com, the theory comes from Edward Lorenz, who figured out that weather patterns can affect each other. He realized that when a butterfly in China moves, the United States can see certain weather afterward.