I was looking at Google Maps the other day and mistakenly asked for the driving directions from Massachusetts to Taos, New Mexico. Absurd! It would take four days, at least!<p>But not if your automated car can drive straight through: It would take a day and an half. Four fueling stops. That's enough not to need the loo built-in. With two passengers, the economics are compelling.<p>Airlines better figure out a way to reduce the overhead around air travel or they are toast.