 According to Descartes, mind and body are distinct substances in part because they do not share essential properties in common. In particular, minds do not occupy a spatial location, while bodies necessarily do. Since mental events thus constitute changes occurring in a nonspatially-located entity, they also do not occupy a spatial region. Bodily events, on the other hand, do occupy spatial locations by virtue of being changes in material substances, which themselves are spatially located. On Descartes’ view, then, particular mental and physical events cannot be token-identical, since they fail to share a crucial property in common without which identity is unintelligible. While Anomalous Monism is not officially concerned with the ontological status of substances, it thus appears to have consequences that are inconsistent with Descartes’ substance dualism—though it doesn’t by itself establish substance monism, it does rule out the Cartesian thought that mental and physical events fail to be identical, and so conflicts with one of the bases for Cartesian substance dualism.