 Last year, when I tested General Motors’ Super Cruise on a 766-mile road trip, I thought the automaker might be close to a game-changing product: A system that would allow customers to take their eyes off the road while driving on certain stretches of highway. GM finally announced that capability on Thursday, leapfrogging Tesla and setting up an interesting contest that illustrates different strategies in autonomous driving. Tesla’s Full Self Driving technology is more advanced than GM’s, but it also isn’t as useful — at least not today. For $100 per month, Tesla drivers can let go of the wheel and watch in awe as their cars deftly navigate practically any situation as well as a human. But if they look away, or even pick up their cell phones, their cars will instantly notice and eventually shut off. Too many “strikeouts” and drivers will lose access completely. AI researchers haven’t figured out how to give self-driving cars human-level common sense, which would prevent the sliver of unpredictable situations where they currently get confused. If Tesla were able to solve that problem, it could be the first company to reach Level 5 autonomy, or a car that can drive anywhere without anyone behind the wheel. That is no easy task, and the underlying issue plagues the entire AI field — not just autonomous driving. The leader in robotaxis today is Google’s Waymo, whose technology in some ways is philosophically closer to GM’s than to Tesla’s. Waymo has honed in on specific geographies and, with plenty of human hours, built a system of redundant safety measures and remote oversight that enables driverless taxis to carry passengers with near-flawless execution. Tesla eschewed expensive lidar sensors and brute force tactics aimed at narrow operating conditions. Instead, it took a simplified approach that utilized cameras and a centralized “brain” that could control the car with lower latency. The Tesla approach has the potential to quickly hit global scale in a way the others do not. If Musk’s vision is realized, other approaches will seem antiquated and limited. |