This paper explores the nature of curiosity from an epistemological point of view. First it motivates this exploration by explaining why epistemologists do and should care about what curiosity is. Then it surveys the relevant literature and develops a particular approach.

Can you rationally double-check what you already know? In this paper, I argue that you can. Agents can know that something is true and rationally double-check it at the very same time. I defend my position by considering a wide variety of cases where agents double-check their beliefs to gain epistemic improvements beyond knowledge. These include certainty, epistemic resilience, and sensitivity to error. Although this phenomenon is widespread, my proposal faces two types of challenges. First, some have defended ignorance norms, (...) on which agents are only allowed to inquire about things they don't already know. Second – motivated by strong conceptions of belief or pragmatic encroachment – some have argued that double-checking destroys knowledge. I argue that these competing views fail to capture both the epistemic value of double-checking and the many reasons why agents might double-check. Moreover, they rely on overly strong assumptions about what inquiry, knowledge, or belief requires. Finally, I marshal linguistic data in favor of the compatibility of knowledge and double-checking. (shrink)

In this paper I argue that suspension of judgment is intimately tied to inquiry and in particular that one is suspending judgment about some question if and only if one is inquiring into that question.

In this paper I argue that there is a class of attitudes that have questions (rather than propositions or something else) as contents.

I argue that inquiry can be defined without reference to the attitudes inquirers have during inquiry. Inquiry can instead be defined by its aim: it is the activity that has the aim of answering a question. I call this approach to defining inquiry a “naive” account. I present the naive account of inquiry in contrast to a prominent contemporary account of inquiry most notably defended by Jane Friedman. According to this view of inquiry, which I call an attitude-centric view, inquiry (...) is appropriately defined not by the aim of the activity but by the attitudes that inquirers have during inquiry. After developing the naive view, I defend it against the objection that it collapses into the attitude-centric view. (shrink)