  Proponents of autonomy solutions might grant these points but claim that such “overdetermination” is innocuous, far from the “intolerable coincidence” threatening Cartesian dualist accounts of mental causation (§2.4), for the two causal lines present are not independent. (The nature of overdetermination has itself become the subject of a literature inspired, in part, by the Exclusion Problem. See, e.g., Funkhouser 2002; Bennett 2003; Sider 2003; Walter 2008; Carey 2011; Bernstein 2016.)