 There is a nonstandard form of internalist modest foundationalism that might be able to solve some of these problems by finding a distinctive role for background knowledge to play. Peter Markie (2006) suggests that background knowledge of how to form perceptual beliefs can determine which experiences count as evidence for which beliefs. If this background served as evidence, the view in question would no longer be a modest foundationalism. Markie, however, understands this know-how entirely in nondoxastic terms—in terms of behavioral dispositions. This presumably keeps it from serving as evidence, although the know-how is mental and available to introspection, which renders the theory internalist. On this view, the content of perceptual experiences would not matter, for their status as evidence is not supposed to be determined entirely by the nature of themselves and their justificanda. This view does, however, flout the intuitively plausible, though controversial, principle of evidence essentialism, which holds that if e is evidence of h for S, then necessarily, e is evidence of h for any S (Lyons 2009; Pollock 1986 calls the principle “cognitive essentialism” and Conee &amp; Feldman 2004 call it “strong supervenience”). It also violates the plausible and less controversial claim that evidential relations are objective (Bergmann 2004), i.e., that the agent’s subjective sense of evidential fit is insufficient for genuine fit.