Abstract

In recent years, philosophers of science have been increasingly concerned with questions about scientific change, and, in connection with those concerns, to rest their claims more and more on an examination of cases in the history of science. During the 1960s and early 1970s, those concerns tended to revolve around the question of whether scientific change, or at least major scientific change, is or is not “rational.” It seems to me, as I shall argue in what follows, that that question is misguided in principle, at least as it is usually understood, and that it calls attention away from the most important and potentially most fruitful problems about the nature of scientific change. Furthermore, I believe, and will argue below, that the most fundamental reasons for investigating scientific change, and the sense in which and degree to which it is necessary to base such investigation on an examination of the history of science have not been adequately grasped even by many who are sympathetic to the approach. Finally, I do not believe that the difficulties in the way of such an approach have been properly appreciated and taken account of, and in many cases have not been considered at all. In particular, I will examine here five basic objections or types of objections against the view that the philosopher of science, in attempting to understand the nature of science, must examine the rationale of scientific development and innovation, and must base that examination on a study of cases from the history of science.