In this engaging discussion, Adam R. C. Humphreys, an expert in causation and metatheory, teams up with Hidemi Suganami, a scholar in international politics and philosophy. They delve into their latest work, advocating for a robust understanding of causal inquiry in international relations. Topics explore the balance between metaphysics and methodology, the importance of empirical evidence, and the critique of established paradigms. They emphasize moving beyond abstract claims to focus on specific events, fostering a rich dialogue on the nature of causation.