 In addition to helping identify why a norm might be bad and what sustains it, game theoretic analysis can also help us identify when and how such norms might be changed. For example, in the case of practices sustained by pluralistic ignorance, the key to changing the practices lies in changing the beliefs of multiple groups. As game theoretic analysis illustrates, though, it may be that this is only possible if each group publicly and simultaneously signals to the other that they do not in fact have an unconditional preference for engaging in the practice in question. This is because, without knowing that their beliefs about the other group’s normative commitments are mistaken, if one group is asked to reveal their preferences unilaterally, whatever motivates their conditional preference is likely to give them reason to conceal their true preferences (Bicchieri 2017).