Why don’t men like to stop and ask directions? This question, which I first addressed in my 1990 book You Just Don’t Understand: Women and Men in Conversation, garnered perhaps the most attention of any issue or insight in that book. It appeared on cocktail napkins (“Real men don’t ask directions”) and became a staple of stand-up comics as well as jokes that made the rounds: “Why did Moses wander in the desert for 40 years?” and “Why does it take so many sperm to find just one egg?”