Originally published on May 24, this article by The New York Times technology correspondent Cade Metz is shared here with permission as part of our licensing program. We welcome your comments below.
It was seven years ago when Waymo discovered that spring blossoms made its self-driving cars get twitchy on the brakes. So did soap bubbles. And road flares.
New tests, in years of tests, revealed more and more distractions for the driverless cars. Their road skills improved, but matching the competence of human drivers was elusive. The cluttered roads . . .