INSIGHT: Defining moments rewire our understanding of ourselves or the world. In a few seconds or minutes, we realize something that might influence our lives for decades: Now is the time for me to start this business. Or, This is the person I’m going to marry. The psychologist Roy Baumeister studied life changes that were precipitated by a “crystallization of discontent,” moments when people abruptly saw things as they were, such as cult members who suddenly realized the truth about their leader. And although these moments of insight often seem serendipitous, we can engineer them—or at the
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