I attended traffic school last night, to get rid of a speeding ticket... The only good part was this story... If you leave the room you are supposed to, and someone takes the space, you slow down for a second to get the correct space again. Many of us will do that a few times, then tailgate so it doesn't keep happening. But, if you did it sixty times, you'd lose a whole minute.... I like to drive, outside the city. But most of my drives? Yuck. And I could be a lot more productive, or have even more fun, if I did something else with that time. Add in reduced costs to society..... What do goods cost if there are way less accidents.... How much productivity and happiness is cost while waiting for an incident to clear?..... And less deaths and major injuries.... It's going to happen, and people will look back on driving like they do corded phones, and typewriters, and other obsolete things.