 One view is that these beliefs are justified by our perceptual and memorial states. When it looks like there’s a door in front of me, this perceptual state justifies me in believing that there is a door there, provided I have no reason to distrust this appearance. Or, at least, I am justified in believing that there appears to be a door there. So foundational beliefs are not arbitrary, they are justified by closely related perceptual and memorial states. Still, the regress ends there, because it makes no sense to ask what justifies a state of perception or memory. These states are outside the domain of epistemic normativity.