There is a noodle bar just up the road from me. It is so popular, a line forms outside at 5pm every day. It must be good because everybody else thinks so. I went once and …well, obviously ordered the wrong thing, so went again and wouldn’t you know, it must have been the chef’s night off. So I went a final time to satisfy my curiosity. The moral of the story: Either I don’t like noodles and never knew it, or everyone else likes noodles but have never tasted them. How much does this explain our behavior?