Nearly 20 years ago, I took my first Myers-Briggs test, which told me I was ISTJ (George Washington, Jeff Bezos, Richard Nixon). Now I’m apparently INFJ (Martin Luther King, Nelson Mandela, Osama bin Laden), defined as “quiet, private people who like discussions and care intensely about helping others.” Is it possible to change? As this article suggests, maybe the whole point is the process of finding ourselves.