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Todays machine-learning systems, trained by data, are so effective that weve invited them to see and hear for usand to make decisions on our behalf. But alarm bells are ringing. Recent years have seen an eruption of concern as the field of machine learning advances. When the systems we attempt to teach will not, in the end, do what we want or what we expect, ethical and potentially existential risks emerge. Researchers call this the alignment problem.

Systems cull rsums until, years later, we discover that they have inherent gender biases. Algorithms decide bail and paroleand appear to assess Black and White defendants differently. We can no longer assume that our mortgage application, or even our medical tests, will be seen by human eyes. And as autonomous vehicles share our streets, we are increasingly putting our lives in their hands.

The mathematical and computational models driving these changes range in complexity from something that can fit on a spreadsheet to a complex system that might credibly be called artificial intelligence. They are steadily replacing both human judgment and explicitly programmed software.

In best-selling author Brian Christians riveting account, we meet the alignment problems first-responders, and learn their ambitious plan to solve it before our hands are completely off the wheel. In a masterful blend of history and on-the-ground reporting, Christian traces the explosive growth in the field of machine learning and surveys its current, sprawling frontier. Readers encounter a discipline finding its legs amid exhilarating and sometimes terrifying progress. Whether theyand wesucceed or fail in solving the alignment problem will be a defining human story.

The Alignment Problem offers an unflinching reckoning with humanitys biases and blind spots, our own unstated assumptions and often contradictory goals. A dazzlingly interdisciplinary work, it takes a hard look not only at our technology but at our cultureand finds a story by turns harrowing and hopeful.