Didn't recommend replacing driving with bicycling, other than by moving to a car-less town where everyone cycles. The point was that bicycling conditions you (or at least me) to not take eyes off the road, not sure though if its so for everyone or just me because i have bad sense of balance and compensate for it with eyes. My theory is that if you bike, you are used to mind state of not being distracted. Or at least, I do, 'cause my eyes are busy replacing for the inner ear function. (i don't know how much other people have to look to keep themselves upright).