> I feel confident that Facebook has stumbled on something in our animal behavior that draws us closer to it. It's a "novelty addiction". They weren't the fir

> I feel confident that Facebook has stumbled on something in our animal behavior that draws us closer to it. It's a "novelty addiction". They weren't the first, it's just its content is closer and more relevant to you since it's people you know. The feeling when you find something new gives you a pleasurable dopamine hit, so you're constantly looking for more. Same can be said for people addicted to reddit, HN, Twitter, etc.