lty if he only thinks of doing so.” The Envelope Game (Fig. 3) models why we care about thoughts and consider- ations and not just actions (Hoffman, Yoeli, & Nowak, 2015). The Envelope Game HOUSE_OVERSIGHT_015507 --- PAGE BREAK --- 296 M. Hoffman et al. Temptation to Defect aes Cons Gon. (1) (2) (