Abstract

Modal epistemologies aim to explicate the necessary link between belief and truth that constitutes knowledge. This strain of epistemological theorizing is typically externalist; hence, it does not require that the agent know or understand the nature of the knowledge-constituting link. A central concern of modal epistemology is to articulate conditions on knowing such that no merely lucky true belief counts as knowledge. In the effort to eliminate luck, epistemic principles are often cast modally, requiring that an agent’s belief is true not only in the actual world but also in relevant possible worlds, indicating that the link between truth and belief is more than an actual world lucky coincidence. (Note, then, that this entry is not about the epistemology of modals—statements involving modal operators such as “necessarily,” “possibly,” and the like—but about the use of modal principles in characterizing the nature of knowledge in general. For purposes of disambiguation and in deference to the other topic, perhaps “modalized epistemologies” would be a better term, though it is not typically used here.) Modal epistemologies typically have antiskeptical consequences, but the strengths of the antiskeptical results vary significantly, especially between the two best-known modal principles, sensitivity and safety.