The one aspect keeping the suburbs from growing is home buyers' commutes to their jobs. Considering a majority of people work in city centers, most don't want to spend up to an hour each way driving to and from work. But an upcoming fleet of driverless cars could change all that - people may begin to enjoy that hour to themselves as downtime between home and work life.

Wall Street Journal's Christopher Mims imagines a world where most people get rid of their cars and instead rely on a car service that has fleets circulating around town, picking up people going in similar directions.

Mims fends off claims that millennials prefer the urban experience, citing studies that show this generation is less urban-oriented than previous generations at the same age. However, he also ponders whether self-driving cars could make cities more livable than they are today.

At the end of it all, Mims seems to think sprawl is how most Americans will go in the next several years, but maybe not quite to the extent sprawl grew in the 1950s.

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