There is a voluminous and growing literature on grounding. However, the literature on the epistemology of grounding is relatively sparse. There are numerous contributions to the literature addressing questions about the nature of grounding. Is grounding irreflexive? Asymmetric? Transitive? Is grounding well-founded? Is grounding properly expressed as a relation or as an operator? Does grounding relate facts or entities of any ontological category? There aren’t as many contributions addressing questions about how it is that we come to know claims about grounding. This paper is a contribution to the latter project. I will argue that our explanatory practices can confer justification for beliefs about grounding claims, i.e., claims about metaphysical…
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