Bertolet was inspired to write in response to naysayers speaking out against expanding bicycle and pedestrian infrastructure in Seattle:
"The crucial point is that car infrastructure not only encourages driving, it also sabotages mobility by any other means. It's a vicious cycle: roads beget sprawl begets car dependence begets roads, and so on. And the result is an ever-expanding built environment in which walking, biking, and transit are not viable options.
The only way to break the vicious cycle is to invest our limited transportation dollars in infrastructure that will help make walking, biking, and transit more attractive than driving."