Nicholas Emmerson

We argue that Ian Hacking’s work on experimentation and styles of reasoning offers valuable insights for the current debate on the nature of scientific understanding, which so far has largely been focused on the role of theories and explanations. Hacking’s suggestion that reasoning not only involves thinking but also doing helps to recognise the role of experimentation and manipulation in scientific understanding. We apply this idea by relating Hacking’s views on explanation and theorising to the contextual theory of scientific understanding developed by one of us (De Regt 2017). We then take a constructive approach by developing an account of pragmatic understanding that accommodates styles of reasoning and the centrality of manipulation and intervention in Hacking’s philosophy of science. Our overall aim in the paper is to bring the neglected role of experimentation in producing scientific understanding to the fore. We conclude by suggesting that scientific understanding involves both representing and intervening.