The UK driverless-car startup Wayve is headed west. The firm's cars learned to drive on the streets of London. But Wayve has announced that it will begin testing its tech in and around San Francisco as well, which brings a new challenge: Its AI will need to switch from driving on the left to driving on the right. As visitors to or from the UK will know, making that switch is harder than it sounds. Your view of the road, how the vehicle turns--it's all different.

Building driverless cars is a slow and expensive business. After years of effort and billions of dollars of investment, the technology is still stuck in the pilot phase. Autonomous technology company Waabi thinks it can do better. In 2021 it revealed the controversial new shortcut to autonomous vehicles it's betting on. Wasabi has built a super-realistic virtual environment called Waabi World.