 This offers a nonevidentialist theory of perceptual justification; rather than being justified by evidential connections to experiences or other beliefs, it is the mere fact that the producing or sustaining process has a tendency to yield true beliefs that makes the perceptual belief justified. This is not to say that it precludes evidence from playing any epistemic role but only that it does not require evidence for perceptual justification; an agent can have justified perceptual beliefs without having any evidence.