Drive-time DJs and radio ad-sales folk must be shuddering at the thought of a world in which the self-driving car is a reality. As if music streaming apps weren't bad enough, stealing away all those listeners, drivers will soon be able to devote their time and attention to any number of diversions. Want to catch up with your favorite Netflix series as you're stuck on the highway? How about checking out your favorite YouTube channel as you're headed to the ball game? Maybe even connect on a split screen with a friend who could likewise be headed somewhere in his or her hands-free, software-chauffeured wheels.