Under Shannon’s Bandwagon. Rethinking the Reception of Information Theory in Thermal Physics, 1948-1957

In this paper I analyze the historical case of how Shannon’s theory of information, among other alternative theories, began to be applied rapidly and systematically within thermal physics in the 1950s. After evaluating this theory and the intellectual context in which it is inserted, I argue that it was not the formal-conceptual features of Shannon’s theory but the particular motivations of influential scientists such as von Neumann, Weaver and Wiener that properly made it possible for information science to become deeply rooted in thermal physics during the 1950s, as shown by the proposals of Brillouin and Jaynes.