(and non-reductive) approach to the philosophy of mind, called anomalous monism. As he said in 1970, "supervenience might be taken to mean that there cannot be two events alike in all physical respects but differing in some mental respects, or that an object cannot alter in some mental respects without altering in some physical respects."

In subsequent years Terence ("Terry") Horgan, David Lewis, and especially Jaegwon Kim