In chaotic systems very small nudges can create very large changes. The F-16 fighter was the first military plane to use this theory. This plane was purposely created to be unstable, This actually allows it to be more maneuverable in the air. However, it is so unstable that a pilot cannot fly it. The plane relies on computers to make the constant split-second corrections to maintain stability while in the air. Since a pilot must rely on the computer to fly the plane the computer is quadruple backed up.
(The Great Courses – Chaos)