 Some are skeptical of grounding. A distinction can be drawn between what we might call first-wave and second-wave grounding skepticism (see Koslicki 2020, though she uses different terminology). First-wave skepticism is characterized by a general concern about the intelligibility of the notion. Daly (2012) argues that the notion of grounding doesn’t really make sense. In a similar spirit, Hofweber (2009) states that grounding theorists are guilty of engaging in a problematic form of metaphysics—while they make use of perfectly ordinary terms such as priority, fundamental and ultimately, they use them in a distinctively non-ordinary, metaphysical way. (For non-skeptical rejoinders to first-wave skepticism, see Audi 2012b and Raven 2012.) Second-wave skeptics, by contrast, generally grant that the notion of grounding is coherent, but they think that it doesn’t belong in our theoretical toolkit in any case, as the arguments in favor of positing grounding aren’t persuasive. What unites second-wave skeptics is a shared sense that grounding theorizing is simultaneously undermotivated and overreaching.