Inside OpenAI’s Crisis Over the Future of Artificial Intelligence

Inside OpenAI’s Crisis Over the Future of Artificial Intelligence

Split over the leadership of Sam Altman, board members and executives turned on one another. Their brawl exposed the cracks at the heart of the A.I. movement.
Tiny Electric Vehicles Pack a Bigger Climate Punch Than Cars

Tiny Electric Vehicles Pack a Bigger Climate Punch Than Cars

Two- and three-wheeled vehicles, used by billions of people, are moving away from fossil fuels to batteries faster than cars in countries that have made the energy transition a priority.