It is common to think that grounding is necessary in the sense that: if P grounds Q, then necessarily: if P, then Q. Though most accept this principle, some give counterexamples to it. Instead of straightforwardly arguing for, or against, necessity, I explain the sense in which grounding is necessary and contingent. I argue that there are two kinds of grounding: what-grounding and why-grounding, where the former kind is necessary while the latter is contingent.

Grounding pluralism is the view that there are multiple kinds of grounding. In this essay, I motivate and defend an explanation-theoretic view of grounding pluralism. Specifically, I argue that there are two kinds of grounding: why-grounding—which tells us why things are the case—and how-grounding—which tells us how things are the case.

Recent years have seen a surge in publications about the epistemology of ignorance. In this article, I examine the proliferation of the concept ignorance that has come with the increased interest in the topic. I identify three conceptions of ignorance in the current literature: (1) ignorance as lack of knowledge/true belief, (2) ignorance as actively upheld false outlooks and (3) ignorance as substantive epistemic practice. These different conceptions of ignorance are as of yet unacknowledged but are bound to impede epistemology (...) of ignorance and, therefore, need to be uncovered. After discussing three unsuccessful ways of dealing with these varying conceptions, I put forward an integrated conception of ignorance that is more adequate for serving as the foundation of epistemology of ignorance. Introducing an alternative conception of ignorance provides us with a foundation for both epistemological and more broadly philosophical work on ignorance. (shrink)