In "Trajectory," Richard Russo examines the human tendency to hold onto misguided beliefs or foolishness, viewing them as integral to one's identity. This attachment can be so strong that individuals will defend these ideas fiercely, even resorting to aggressive behavior when faced with the contrast of rational thought or wisdom. Such behavior reveals a deep, often irrational fear of change and the discomfort that accompanies personal growth.

The narrative suggests that this clinging to folly is not just a personal struggle but also reflects broader societal dynamics, where defending outdated or harmful beliefs can lead to conflict and division. Russo’s insights highlight the challenges of fostering understanding and wisdom in a world where many prefer the safety of familiar ignorance over the challenges of enlightenment.