Today's AI agents are a primitive approximation of what agents are meant to be. True agentic AI requires serious advances in reinforcement learning and complex memory.

Keystone species play an outsized role in the ecosystem, affecting the natural balance in ways that cannot easily be replaced.

Increasing longevity is forcing a rethink of public policy, individual lifestyles, and private finances. Yet it is crucial not to overreact or grow unduly alarmed about shifting population dynamics.

A human ear attached to a woman’s foot sounds like a stunt from a horror film, yet it is the centerpiece of a real, carefully planned medical rescue. In a world first, surgeons in China temporarily ...