A general who has just won a battle faces a different danger than the one he faced on the battlefield: the temptation to stop learning. The 11th-century Persian scholar Al-Biruni — who mastered Sanskrit to understand Indian science and spent years embedded in cultures utterly foreign to his own — argued that genuine understanding requires what he called 'removal of the self as an obstacle.' Not self-erasure, but the deliberate suspension of your hard-won expertise so that new information can actually land. This is the trap that catches accomplished leaders: the same pattern-recognition that made you effective starts filtering out signals that don't fit your existing map. What Al-Biruni's method suggests, and what cognitive scientists who study expert blind spots would recognize, is that achievement needs to be periodically 'unloaded' — you have to consciously treat your current role or project as if you're the least qualified person in the room. Pick one meeting today where you say nothing for the first ten minutes. Just observe. See what you notice that you'd normally have already explained away.

Name a belief about your team or family that you formed more than a year ago and haven't seriously questioned since. What evidence would actually change it?

Drawing from Islamic Historical Scholarship (Al-Biruni) combined with Expertise and Cognitive Bias Research — Al-Biruni (Tahqiq ma lil-Hind / Indica, ~1030 CE)