| For example, a washing machine can do the task of washing and rinsing clothes better and in less time than a human being | An example can be when a machine carries out an intellectual task (for example a translation from a language into another) with the same accuracy as a human being. | A typical example is playing chess: there is a number of interactions (due to the number of pawns and their extremely varied movements) the players can execute. | 1940s → Alan Turing during WWII → tries to decrypt german messages & war instructions |