Ian Hacking (born in 1936, Vancouver, British Columbia) is most well-known for his work in the philosophy of the natural and social sciences, but his contributions to philosophy are broad, spanning many areas and traditions. In his detailed case studies of the development of probabilistic and statistical reasoning, Hacking pioneered the naturalistic approach in the philosophy of science. Hacking’s research on social constructionism, transient mental illnesses, and the looping effect of the human kinds make use of historical materials to shed (...) light on how developments in the social, medical, and behavioural sciences have shaped our contemporary conceptions of identity and agency. Hacking’s other contributions to philosophy include his work on the philosophy of mathematics (Hacking, 2014), philosophy of statistics, philosophy of logic, inductive logic (Hacking, 1965, 1979, 2001) and natural kinds (Hacking, 1991, 2007a). (shrink)

For William Whewell and, later, Charles Peirce, the methods of science merited scientific examination themselves. Looking to history to build an inductive account of the scientific process, both men transformed scientific methods into scientific evidence. What resulted was a peculiar instance of what Ian Hacking calls “the looping effects of human kinds,” in which classifying human behavior changes that behavior. In the cases of Whewell and Peirce, the behavior in question was their own: namely, scientific study. This essay brings Hacking’s (...) formulation to bear on the status of science in nineteenth-century intellectual history, revealing the continued entanglement of science and philosophy even as they were being prized apart. Focusing on how Whewell and Peirce turned themselves into “scientific kinds,” the essay reveals the slippage between “what” and “how” across what Peirce once called “the age of methods.”. (shrink)