Post-adolescent Expert Syndrome The tendency of young people around the age of eighteen, males especially, to become altruistic experts on everything, a state of mind required by nature to ensure warriors who are willing to die with pleasure on the battlefield. Also the reason why religions recruit kamikaze pilots and suicide bombers almost exclusively from the 18-21 range. "Kyle, I never would have guessed that when you were up in your bedroom playing World of Warcraft all through your teens, you were, in fact, becoming an expert on the films of Jean-Luc Godard.