Recent books by Harry Collins, Neil Gascoigne and Tim Thornton, and Stephen Turner examine the nature of tacit knowledge and the role it plays in society. Their interpretations are outlined and placed in juxtaposition with the extremely broad understanding of tacit factors in knowing set forth by the originator of the term, Michael Polanyi. I argue that the naturalized version advocated by Turner can best develop the richness of Polanyi’s insights, and I sketch out what some of the aspects of (...) a full account of the tacit might look like. (shrink)