A second argument for Russellian monism is based on the claim that this theory offers an elegant, unified solution to two distinct philosophical problems (Lockwood 1989, 1992; Chalmers 1996, 2013 [2015: 254]; Rosenberg 2004; Goff 2017; cf. Russell 1927a, 1927b: 116). One of those problems is how to provide a foundation for the spatiotemporal structure physics describes. The other is how to integrate consciousness into physical causation. When considered from the perspective of a Russellian monis