Don’t throw the Baby out with the Bath school! A reply to Collins and Yearley

Two papers by Callon on scallops and Latour on door closers are discussed by Collins and Yearley and accused of bringing back naturalism and technical determinism; this paper explores the claims, situates the social relativism vis à vis constructivism and shows how our research program is the only way out of the quandary in which Collins and Yearley have put themselves.