Abstract
The aim of the article is to bring a new angle to the debate about scientific realism in connection with the caloric theory of heat. Stathis Psillos examined the caloric theory in connection with scientific realism and the argument of pessimistic induction, and his approach was subsequently criticised by Hasok Chang.
My aim is twofold. Firstly, to evaluate to what extent Chang's critique is justified, and to highlight certain positive aspects of this critique.
Secondly, I will attempt to show how on the basis of a study of the calorific theory of heat we might trace more general principles which, despite Chang's critique of Psillos' strategy, undermine the plausibility of the pessimistic induction.