 This part of Heil’s account appears to be consistent with the spirit of traditional neutral monism. One is reminded of Russell’s pithy description of his project: “What I wish to do in this essay is to restate the relations of mind and brain in terms not implying the existence of either” (Russell 1956a: 145). This can easily be read as a denial of the existence of a chasm between mental and physical properties. And Heil’s complex objects that serve as the truth-makers for mental and physical descriptions may be seen as analogous to Russell’s groups (logical constructions) of events that can properly be described in physical and mental terms. This makes for a significant parallel between the two views.