Self-driving cars won't make us more productive

Self-driving cars are raising hopes that we’ll get a lot done when we don’t have to drive anymore. According to a University of Michigan study, that’s about as likely as a parent finishing two memos and a big presentation while taking a teen-age learner out to drive.The average U.S. driver spends an hour a day in their car, but the study concluded that for 62 percent of Americans, freeing up that driving time won’t make them any more productive. And the findings suggest r