The road, more than simply a system of regulations and designs, is a place where many millions of us, with only loose parameters for how to behave, are thrown together daily in a kind of massive petri dish in which all kinds of uncharted, little-understood dynamics are at work. There is no other place where so many people from different walks of life-different ages, races, classes, religions, genders, political preferences, lifestyle choices, levels of psychological stability-mingle so freely.

When a situation feels dangerous to you, it's probably more safe than you know; when a situation feels safe, that is precisely when you should feel on guard.

The way humans hunt for parking and the way animals hunt for food are not as different as you might think.

The road, more than simply a system of regulations and designs, is a place where many millions of us, with only loose parameters for how to behave, are thrown together daily in a kind of massive petri dish in which all kinds of uncharted, little-understood dynamics are at work. There is no other place where so many people from different walks of life-different ages, races, classes, religions, genders, political preferences, lifestyle choices, levels of psychological stability-mingle so freely.