Harry Collins

Harry Collins is a British sociologist and a principal figure in the sociology of scientific knowledge (SSK). He is best known for his work with Trevor Pinch on the Experimenters' Regress, and for his broader studies of scientific practice, expertise, and the social processes that produce and maintain scientific knowledge.

Collins' research has focused on the social dynamics of scientific controversies, particularly in physics. He demonstrated that the replication of experiments is not a mechanical process but a social achievement, requiring the transfer of tacit knowledge, the calibration of instruments, and the negotiation of what counts as a successful replication. His work challenges the traditional view of science as a purely rational, method-driven enterprise, showing instead that scientific consensus is produced through social negotiation and the closure of debate.

In his later work, Collins has examined the nature of expertise and the limits of public participation in scientific decision-making. He argues that genuine expertise requires immersion in a scientific community and the acquisition of tacit knowledge that cannot be transmitted through textbooks or public debate. This position has been controversial in STS, where the democratization of expertise is a central theme.

Collins' work on the experimenters' regress is often read as a debunking of science, but it is better understood as a defense of scientific practice. By showing that scientific knowledge is socially achieved, Collins is not undermining science; he is showing how difficult and impressive it is. The critics who accuse him of relativism are missing the point: Collins is a realist about scientific achievements, but he is a sociologist about how those achievements are produced.