Why is Uber selling its autonomous-vehicle division?

IN 2016 TRAVIS KALANICK, then Uber’s chief executive, described self-driving cars as mission-critical. If somebody managed to beat Uber to making them work, he said, then the rival’s ability to offer taxi trips without paying for human drivers would mean that “Uber is no longer a thing.”Times change. On December 7th Uber announced the sale of its self-driving arm to a firm called Aurora. No price was given. But Uber said it would put another $400m into the unit; that Dara Khosrowshahi, its current boss, would join Aurora’s board; and that the deal would leave it with a 26% stake in Aurora.