Abstract

In this paper we show that Audi’s fallibilist foundationalism is beset by three unclarities. First, there is a conceptual unclarity in that Audi leaves open if and how to distinguish clearly between the concepts of fallibility and defeasibility. Second, there is a general unclarity: it is not always clear which fallibility/defeasibility-theses Audi accepts or denies. Finally, there is an unclarity of self-application because Audi does not specify his own claim that fallibilist foundationalism is an inductivist, and therefore itself fallible, thesis. The critical part of our paper is supplemented by a constructive part, in which we present a space of possible distinctions between different fallibility and defeasibility theses. These distinctions can be used by Audi as a toolkit to improve the clarity of fallibilist foundationalism and thus provide means to strengthen his position.