Briefly Noted Book Reviews

"The Infinity Machine," "If This Be Magic," "While We Were Waiting," and "Coyoteland." In 2010, at the age of thirty-four, he co-founded the A.I. startup DeepMind to pursue this vision. Since then, the company's creations have solved painfully difficult problems in fields from mathematics to computational biology. One of its programs produced a solution to the so-called protein-folding problem, representing a dramatic advance in the science of drug discovery and bringing Hassabis a Nobel Prize. Mallaby, a longtime financial journalist, is a nimble storyteller, and his portrait of one of the single-minded personalities plunging the world into an uncertain future is also an engaging drama of discovery.