“Driverless vehicles, on paper anyway, make sense: Simply remove the possibility of fatigue or alcohol impairment in a driver, and you have just knocked 45.5 percent off the fatality rate in the U.S.—and that is merely the lowest-hanging fruit in a forest of human-factor hazards. But, we don’t tend to think on paper.” This statement was pulled from a recent Car and Driver article by Tim Vanderbilt asking the basic but deeply important question, “How safe is safe enough?”