For the last century, personality has been treated as set in stone. We viewed our traits as our underlying essence, shaping how we think about the world and how we behave. And we believed a personality test could help us uncover that underlying essence. Once you learned your type, you could then make career and lifestyle choices that fit. We assumed that since personality is relatively stable, the smartest strategy was to work within its limits. But over the past two decades, personality science has undergone a shift. Instead of viewing traits as fixed qualities, psychologists increasingly recognize personality as patterns that can evolve. Personality Traits Are Descriptive, Not Causal In psychological science, personality traits are descriptive labels for typical patterns of thinking, feeling, and behaving. For example, if you tend to imagine worst-case-scenarios and frequently seek reassurance, you would probably be described as higher in emotional sensitivity. If you tend to plan, organize tasks, and follow through on commitments, you’d probably be labeled as high in conscientiousness. When you take a personality test, your …