The information–action ratio is a concept coined by cultural critic Neil Postman in his work Amusing Ourselves to Death. In short, Postman meant to indicate the relationship between a piece of information and what action, if any, a consumer of that information might reasonably be expected to take once learning it.
In a speech to the German Informatics Society (Gesellschaft für Informatik) on October 11, 1990 in Stuttgart, sponsored by IBM-Germany, Neil Postman said the following: "The tie between information and action has been severed. Information is now a commodity that can be bought and sold, or used as a form of entertainment, or worn like a garment to enhance one's status. It comes indiscriminately, directed at no one in particular, disconnected from usefulness; we are glutted with information, drowning in information, have no control over it, don't know what to do with it."[ 1]
In Amusing Ourselves to Death Postman frames the information-action ratio in the context of the telegraph's invention. Prior to the telegraph, Postman says people received information relevant to their lives, creating a high correlation between information and action: "The information-action ratio was sufficiently close so that most people had a sense of being able to control some of the contingencies in their lives” (p. 69).