Meta is buying AI agent startup Manus AI, a system built on competitor models. The deal shows how far the company has fallen behind on AI agents despite billions in spending. Still, the acquisition could be a smart shortcut.

MIT researchers compared 59 scientific AI models and found they converge to similar internal representations of molecules, materials, and proteins, even when built on different architectures and trained on different tasks.

Four new books grapple with a global mental-health crisis and the dawn of algorithmic therapy.