Listen to the session or watch below Sodium-based batteries could be a cheaper, safer alternative to lithium-ion, and the technology is finally making its way into cars—and energy storage arrays on the grid. Sodium-ion batteries are one of MIT Technology Review’s 10 Breakthrough Technologies of 2026 list, and this subscriber-only discussion explains why. Watch a…
Six of xAI’s 12 co-founders have departed, with five leaving in the past year alone—just as Elon Musk’s AI lab prepares for a major IPO following SpaceX’s acquisition.
At least nine engineers, including two cofounders, have announced their exits from xAI in the past week, fueling online speculation and raising questions about stability at Musk’s AI company amid mounting controversy.
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