With the prevalence of swine flu in the news lately, I can't help but think that introverts would be more likely to survive in the event that such a disaster became more widespread. After all, we tend to come in contact with others much less; thus, we'd simply avoid one of the ways in which we might encounter a virus. It's like a built-in defense mechanism. Introverts may or may not be born rulers, but perhaps we are born survivors.