Panpsychism and the metaphysics of properties

Abstract A version of panpsychism emerges from a critical overview of the metaphysics of properties. The “powerful qualities theory,” according to which all concrete properties are equiprimordially powerful and qualitative, enjoys a general advantage over other major theories of properties. But it faces some issues. Chief is the Collapse Argument: the powerful qualities theory struggles to define powerful qualities in a way that distinguishes them conceptually from pure powers. But this issue is avoided by a variant of the powerful qualities theory which makes powerful qualities “powerful qualia”: essentially dispositional instances of phenomenal consciousness. I reject a few attempts to sever the link between this powerful qualia theory of properties and panpsychism. The result, and the view I endorse, is a version of panpsychism: a panpsychism of powerful qualia.