The "Unilateralist's Curse" is a conceptual model asserting that unilateral actions—taken without broad societal consensus—are particularly prone to negative consequences. This is primarily because those most likely to act unilaterally tend to underestimate the potential harms of their actions. The theory suggests that due to information asymmetry or cognitive biases, individuals or small groups may make decisions that are detrimental to the collective when they fail to fully consider broader implications. However, history also shows that many widely celebrated advances and innovations were driven by mavericks—the so-called "unilateralists"—who defied mainstream opposition. By challenging established norms, these actors have often brought about positive change. Thus, the model does not categorically reject all unilateral actions, but rather highlights their inherent risk bias and calls for more comprehensive evaluation before acting.