Abstract

Broadly speaking, there are two different ways in which one might defend skepticism – an a priori wayand an empirical way. My first task in this paper is to defend the view that the preferred way to defendskepticism is empirical. My second task is to explain why this approach actually makes sense. Iaccomplish this latter task by responding to various criticisms one might advance against the possibilityof empirically defending skepticism. In service of this response, I distinguish between two differentkinds of hallucination, ‘metaphysical’ and ‘ordinary’, and seek to clarify the notion of a‘presupposition’