When I gauge other people's intelligence I'm only ever comparing it to my own. How easily I learn new things, how open I am to new ideas and how able I am to grasp complicated concepts. To me, my ability is the norm. Fortunately it's considerably above the actual average, but I imagine everyone does this.

Knowing people who have done iq tests and scored around 100, and having studied with them in formal educational settings, life seems fucking hard for those guys. I'd dread to think how hard life is for those with an iq of 85 or something.