“Original, accessible, and provocative. . . . Tegmark successfully gives clarity to the many faces of AI, creating a highly readable book that complements The Second Machine Age’s economic perspective on the near-term implications of recent accomplishments in AI and the more detailed analysis of how we might get from where we are today to AGI and even the superhuman AI in Superintelligence. . . . At one point, Tegmark quotes Emerson: ‘Life is a journey, not a destination.’ The same may be said of the book itself. Enjoy the ride, and you will come out the other end with a greater appreciation of where people might take technology and themselves in the years ahead.” —Science
“Lucid and engaging, it has much to offer the general reader. Mr. Tegmark’s explanation of how electronic circuitry—or a human brain—could produce something as evanescent and immaterial as thought is both elegant and enlightening. But the idea that machine-based superintelligence could somehow run amok is fiercely resisted by many computer scientists. . . . Yet the notion enjoys more credence today than a few years ago, partly thanks to Mr. Tegmark.” —Wall Street Journal

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