Anthropic’s answer? A moonshot goal to develop what Amodei calls an “MRI for AI”—a rigorous, high-resolution way to peer inside the decision-making pathways of artificial minds before they become too ...

Last November, Bradford G. Smith got a brain implant from Elon Musk’s company Neuralink. The device, a set of thin wires ...

Mathematicians love the certainty of proofs. This is how they verify that their intuition matches observable truth.