Concepts, anomalies and reality: a response to Bloor and Fehér

In this article I respond to the defences of the Strong Programme put forward by David Bloor and Márta Fehér in this issue. I dispute the claim that it is attention to only limited parts of the Strong Programme framework that allows me to argue that this approach: (i) leads to weak idealism, (ii) undermines the idea that theories have varying levels of instrumental success, and (iii) challenges the theoretical claims of scientific actors. Rather, I argue that these problematic positions are entailed by the constructionist tenets at the core of the Strong Programme.