Our argument has been that consumerism and economic growth are an overarching problem that requires social change. There are many ways to undertake social change, from individual behavior to corporate policy to democratic lawmaking, but here we have focused on the activism of social movements, which generally entails forms of collective action. The introductory chapter argued that this is an underexplored yet useful way to think about design activism, and the remaining chapters have set out to explore and illustrate usefulness. The resulting picture shows how design might constructively be more political, provides a realistic view of the systemic challenges of consumerism, and, one hopes, leaves room for optimism despite uncertainty. Below we consider four concluding points.