Design is optimistic by nature: it seeks to solve problems and, in doing so, create preferable conditions. Yet, the thinking behind it abounds with expressions of skepticism, dissatisfaction, and even resentment. Rather than being dismissed as anomalies, can these “sad passions” shed light on the blind spots of the discipline? Can disillusionment represent something more than mere disappointment? Can it, for example, translate into an emotional method for bringing dysfunctions and contradictions to light? Th