Two Kinds of Exploratory Models

I analyze the exploratory function of two main modeling practices: targetless fictional models and hypothetical perspectival models. In both cases, I argue, modelers invite us to imagine or conceive something about the target system, which is known to be either nonexistent (fictional models) or just hypothetical (in perspectival models). I clarify the kind of imagining or conceiving involved in each modeling practice, and I show how each-in its own right-delivers important modal knowledge. I illustrate these two kinds of exploratory models with Maxwell's ether model and supersymmetric particle models at the Large Hadron Collider.