1936 – 2023
Ian Hacking (1936–2023) was a Canadian philosopher of science and probability, best known for his work bridging historical epistemology with analytic philosophy. He made foundational contributions to the philosophy of probability, scientific realism, and social ontology. His wide-ranging scholarship examined how scientific concepts emerge, stabilize, and shape the objects they describe.
Developed the distinction between entity realism and theory realism in 'Representing and Intervening' (1983)
Pioneered historical epistemology as a method for analyzing the emergence of scientific concepts
Introduced the 'looping effect' — the idea that human classification categories interact with and reshape the people classified
Wrote influential analysis of the historical emergence of probability and statistical reasoning in 'The Emergence of Probability' (1975)
Argued for maximum entropy as a conservative, broadly applicable principle of probabilistic inference