New Ontological Foundations for Extended Minds: Causal Powers Realism

In this paper, we describe causal powers realism as a conjunction of four claims. causal powers are not reducible to counterfactuals; they are empirically-discoverable; they manifest effects in conjunction with partners; and their manifestations empower further manifestations. We describe four challenges to extended mind theory and for each show how an ontology of causal powers realism either avoids or dissolves the problem. We close by suggesting that causal powers realism isn't a competitor with extended mind theory but rather a new way to understand what it means for minds to be extended.