This is the story of a moment of transformation in the human sciences, an account of a group of people who met regularly from 1946 to 1953 to explore the possibility of using scientific ideas that had emerged in the war years (cybernetics, information theory, computer theory) as a basis for interdisciplinary alliances. The Macy Conferences on Cybernetics, as they came to be called, included such people as Norbert Wiener, John von Neumann, Margaret...