The future of city driving -- at least in theory -- sounds amazing. We'll have digital assistants in our vehicles to book last-minute restaurant reservations, and we'll never have to touch a steering wheel again because our cars will drive themselves. At CES, I got a glimpse of how this technology is coming along, and though it was in the context of a carefully designed demo rather than a real-life experience on the city streets, I walked away thinking that a driverless society is a long, long time away.