So we procrastinate because we're intelligent? This should massage every hackers ego on Hacker News :) "Ah, I see, it is because I'm smart that I can't get things done. It's not that bad after all". To me it seems that most people procrastinate, whether they're are intelligent or not.
Unfortunately, it's often easier to get away with it when you're "smart" because when someone looks at your screen they don't see a Facebook game - they see "research".