  McDowell’s disjunctive conception of perceptual experience is primarily motivated by epistemological concerns. He appeals to a disjunctive conception of perceptual experience in offering a proposal as to how we should resist a “tempting” line of argument that has an epistemological conclusion. The conclusion of the tempting argument is that when one genuinely perceives the world, the epistemic grounds one has for one’s world-directed judgements can be no better than those available to one when one hallucinates. (See McDowell 1982, 1987, 1994, 2008, 2010, and 2013. See Putnam 1999 for an endorsement of McDowell’s approach.)