The Download: AI agents’ autonomy, and sodium-based batteries

June 12, 2025
This is today’s edition of The Download, our weekday newsletter that provides a daily dose of what’s going on in the world of technology. Are we ready to hand AI agents the keys? In recent months, a new class of agents has arrived on the scene: ones built using large language models. Any action that can be…

Are we ready to hand AI agents the keys?

June 12, 2025
On May 6, 2010, at 2:32 p.m. Eastern time, nearly a trillion dollars evaporated from the US stock market within 20 minutes—at the time, the fastest decline in history. Then, almost as suddenly, the market rebounded. After months of investigation, regulators attributed much of the responsibility for this “flash crash” to high-frequency trading algorithms, which…

These new batteries are finding a niche

June 12, 2025
Lithium-ion batteries have some emerging competition: Sodium-based alternatives are starting to make inroads. Sodium is more abundant on Earth than lithium, and batteries that use the material could be cheaper in the future. Building a new battery chemistry is difficult, mostly because lithium is so entrenched. But, as I’ve noted before, this new technology has…

Twenty years strong: a love letter to TechCrunch

June 12, 2025
Here’s to the perspective that twenty years gives you, and to twenty more years of asking hard questions, helping readers see around corners, and working with people who make even the roughest days worth it.