Humans are in the way. There is an intermediate "rich" communication light-set that speaks more than intentions, and more directions than backward. If you go

Humans are in the way. There is an intermediate "rich" communication light-set that speaks more than intentions, and more directions than backward. If you go "no driver" then your market dies. It is going to be an ironic pain for Detroit, one that ranks up there with having your company realtime video your face for thought-crimes, when individual consumers don't buy cars that don't come with a steering wheel.