On the transformation of travel:

[I]t is astounding how quickly these technologies have changed one of the most basic aspects of our existence: the way we move through the world. When driving down the highway, you can now expect to see, in a sizable portion of the cars around you, GPS screens glowing on dashboards and windshields. What these devices promise, like the opening of the Western frontier, and like the automobile and the open road, is a greater freedom — although the freedom promised by GPS is of a very strange new sort.