The Download: OpenAI’s turning point for math and a battery record

OpenAI announced that a swarm of 10,000 AI agents solved a 90-year-old open problem in the Navier-Stokes equations within 88 hours, but faced criticism for not crediting the researchers whose AI-assisted work contributed to the solution. In the United States, battery installations reached a new quarterly record of 20.2 GWh in Q2 2026, enough to power roughly 600,000 homes and signaling accelerated growth driven by cheaper storage and expanding renewable integration.