Epistemology orthodoxy is a purist one in the sense that it separates out the epistemic from the practical. What counts as evidence is independent of what we care about. Which beliefs count as justified and which count as knowledge are independent of our practical concerns. In recent years, many epistemologists have abandoned such purist views and embraced varying degrees of pragmatic encroachment on the epistemic. I survey a variety of these views and explore the main arguments that proponents of pragmatic encroachment have offered in addition to the main criticisms of the pragmatic approach.
| INTRODUCTIONAccording to philosophical lore, epistemological orthodoxy is a purist epistemology in which epistemic concepts are characterized to be pure and free from practical concerns. On this purist view, what counts as knowledge, for example, is independent of what we care about, and what is good or bad for us is independent of what we have evidence to believe or accept. So one is a purist to the extent that one believes that the epistemic realm is independent of the practical realm and that our epistemic concepts are independent from our practical ones. 1In recent years, a number of challenges have been posed against purism from proponents of pragmatic encroachment, who adhere to the slogan that the practical encroaches on the epistemic. 2 Let us call any view that adheres to this slogan pragmatic. Since proponents of pragmatic encroachment represent a variety of philosophical approaches and views, the slogan is purposely ambiguous, open to a variety of interpretations and applications. I shall, however, begin our discussion by focusing on one specific interpretation. Once we have done so, we can then raise questions about how we have interpreted the slogan and explore alternatives that widen and/or change the scope of the slogan's application. I will do so by offering a taxonomy of pragmatic views in section 4.We start by specifying what we mean by "the practical" by appealing to a demarcation of practical from nonpractical factors that corresponds with the demarcation between non-truth-relevant and truth-relevant factors.Relative to some proposition p, a factor is truth-relevant just in case it affects the likelihood that p is true or false.So anything that raises or lowers the objective or subjective probability that p counts as truth-relevant. 3 For example, relative to the proposition that it will rain today, any proposition q (e.g., that there are clouds in the sky) such that the conditional probability that it will rain today given q is not equal to the unconditional probability that it will rain today will count as truth-relevant. On this initial interpretation, practical factors are just nontruthrelevant factors. 4Next, since knowledge is often taken as the central object of theoretical concern for epistemology, the most widely discussed question about pragmatic encroachment is the question of whether or not practical factors are