 Capacitarians then appeal to the idea of unexercised capacities to explain why certain unwitting wrongdoers could have been aware of relevant considerations: it’s because those wrongdoers possess the requisite cognitive capacities, but failed to exercise them despite the absence of significant impediments, that they could have known better (Clarke 2017a: 242; 2017b: 67; Murray 2017: 520; Rudy-Hiller 2017: 407; Vargas 2018: 15 [Other Internet Resources]).