I found a Meyers-Briggs test in one of my old high school notebooks from twenty-plus years ago. I made a copy, waited a few weeks so I forgot what the answer sheet looked like, and retook it. Comparing the results: I’m as introverted as I ever was, but everything else changed completely. I was very rigid-thinking and holier-than-thou as a teenager; adulthood gave me a lot more perspective on life.