For more than a decade, people have been trying to teach cars how to drive. In the not-too-distant future, this effort may come full circle, with cars teaching people how to drive; last week, General Motors applied for a patent on an autonomous vehicle equipped to "train drivers." Self-driving cars have taken a lot longer to come about than was predicted, with complications relating to technology, safety, and regulations all throwing wrenches in the spokes of progress. Google was one of the first companies to invest heavily in driverless vehicle development, launching its self-driving car project in early 2009 out of its X lab (also known as the Moonshot Factory). As recently as 2015, auto industry insiders predicted fully self-driving cars would be on the road by 2020. That wasn't the case, and two years later we're still waiting for the day we can kick back, put our feet up, and watch the scenery go by as autonomous cars deliver us to our destinations.