Also, I can imagine if someone is extremely talented/gifted in one domain, its extremely alluring to measure the world against that attribute. It can be self-affirming 95% of the time, because you're better than most people. But the other side of that coin is the 5% who are better than you, make you question your talents and create insecurity.
The parts of it about traffic come to mind /every day/ I'm on the way home. Especially: "In this traffic, all these vehicles stuck and idling in my way: It's not impossible... that the Hummer that just cut me off is maybe being driven by a father whose little child is hurt or sick in the seat next to him, and he's trying to rush to the hospital, and he's in a way bigger, more legitimate hurry than I am -- it is actually I who am in his way."