The book concludes by turning to the most unexpected mentors for navigating a complex world: children. The chapter argues that children are the ultimate architects of change not because they are naïve, but because they possess an evolutionary advantage that adults have lost: the ability to update their mental models without ego. Drawing on research from cognitive science, the chapter reveals a trade-off in the human brain: as we mature into adults, our prefrontal cortex optimizes for efficiency and planning, but at the cost of the “uninhibited exploration” required for deep learning. While adults suffer from “premature closure,” by rushing to categorize new information into old boxes, children treat anomalies as invitations to refine their understanding of the world. By resisting the “streetlight effect” of looking only where it is safe and familiar, children embody the very traits, including curiosity, resilience, and the refusal to accept the world as fixed, that this book has championed. The final lesson for the architect of change is to reclaim the sophisticated capacity to wonder, proving that in a world that keeps changing, the only way to survive is to never stop asking “why.”