Abstract

An increasingly popular view amongst metaphysicians holds that causation involves causal powers interacting to bring about a collective result. In a recent paper, however, Baltimore has raised a challenge—the interaction gap—confronting any theory which includes interacting powers. Baltimore considers two approaches to the interaction of powers—contribution combination and mutual manifestation—and argues that only the latter has the resources to answer his challenge. In this paper, I argue that the challenge is bigger than Baltimore realises and cannot be answered by either view. I show that the challenge can be answered by adopting a third view of powers.