New Eleaticism

Abstract: ABSTRACT. The Eleatic Principle denies the existence of causally inert entities. In this paper, I discuss a particular justification of the principle - that causally inert entities have no explanatory value in science. I argue against this justification, showing that non-causal explanations and entities do important work in scientific explanations. I then propose that the Eleatic should instead adopt an alternative principle, one where explanatory power conditions the existence of postulated entities. To flesh out the principle, I present an account of explanation, connecting it with directed dependency, arguing that grounding dependence, not just causal dependence, can generate explanation. Finally, I point to a theory that could minimize the ontological commitments entailed by accepting the new principle.