Google DeepMind has built a new video-game-playing agent called SIMA 2 that can navigate and solve problems in a wide range of 3D virtual worlds. The company claims it’s a big step toward more general-purpose agents and better real-world robots. Google DeepMind first demoed SIMA (which stands for “scalable instructable multiworld agent”) last year. But…
Hydrogen is sometimes held up as a master key for the energy transition. It can be made using several low-emissions methods and could play a role in cleaning up industries ranging from agriculture and chemicals to aviation and long-distance shipping. This moment is a complicated one for the green fuel, though, as a new report…