Proponents of political experiments in living, such as Elizabeth Anderson and Ryan Muldoon, often emphasize their potential to generate useful observational data about the relation between social rules and ethically desirable outcomes. This paper highlights another epistemic dimension of political experiments: their potential to transform the cognitive perspectives of participants. I argue that this transformative dimension of experimentation offers an endogenous societal mechanism for increasing perspectival diversity. I explore the implications of this mechanism for institutional design.