'There is rarely an obvious branching point in a person’s life. People change slowly, over time. You don’t take one step, then find yourself in a completely new location. You first take a little step off a path to avoid some rocks. For a while, you'll walk alongside the path, but then you'll wander out a little way to step on softer soil. Then you'll stop paying attention as you drift farther and farther away. Finally, you'll find yourself in the wrong city, wondering why the signs on the roadway hadn’t led you better.'