>> "what could you do with an extra 3 hours a day?" I agree with everything you've said but the economics will be very important. If the cars are more expensiv

>> "what could you do with an extra 3 hours a day?" I agree with everything you've said but the economics will be very important. If the cars are more expensive than ordinary cars getting back 3 hours a day could be enough to justify the cost. But how long you drive per day obviously depends on where you live. Most people I know (and I live in the suburbs) don't commute more than 1 hour total per day. They might not be able to justify the extra cost of a self-driving car.