I felt the same way about cigarettes. I would occasionally smoke one, maybe once or twice a year, and couldn't imagine how anyone could get addicted to such an

I felt the same way about cigarettes. I would occasionally smoke one, maybe once or twice a year, and couldn't imagine how anyone could get addicted to such an underwhelming stimulant. To want to smoke cigarettes more than a handful of times seemed like a symptom of unresolved life or mental issues. Anything that has a quick action->dopamine-response loop can be addictive. Facebook is purposefully tightening that loop in its product.