How do South-African workers identify the factory through two singular categories of thinking: “to talk to each other” and “to communicate”? The impossibility for a black worker to talk to a white foreman identifies the former interdiction to talk in factories as a form of apartheid in the production place. Moreover the category “communicate” enables them today to identify the factory as a production place used for reconstruction of South Africa - a mark of the productivist unanimism that characterizes their contemporaneaous forms of thinking.