Abstract

I examine Thomas Kuhn’s work regarding the role played by the concept of practice in the development of his theory of scientific rationality. I outline the epistemological implications of his theory of incommensurability. I then show how the original intuition of a practice-based and social conception of incommensurability is replaced by a more conventional linguistic interpretation. I then examine Kuhn’s solution to the problem of incommensurability and explain its inadequacy. I then show that, ultimately, his failure to grasp the epistemological dimension of practice prevents him from providing a fully satisfactory solution to the epistemological problem raised in The Structure of Scientific Revolutions.