If I ask you to write down the last 4 digits of your social security number, and then take you out to lunch and ask you how many dentists there are in Manhattan, there's going to be a high correlation between those two numbers. What happens is that the number psychologically makes you feel confident.
Nassim Nicholas TalebCharm is the ability to insult people without offending them; nerdiness the reverse
Nassim Nicholas Taleb