Over the past year, Oxford University philosophy professor Nick Bostrom has gained visibility for warning about the potential risks posed by more advanced forms of artificial intelligence. He now says that his warnings are earning the attention of companies pushing the boundaries of artificial intelligence research.

Many people working on AI remain skeptical of or even hostile to Bostrom’s ideas. But since his book on the subject, Superintelligence, appeared last summer, some prominent technologists and scientists—including Elon Musk, Stephen Hawking, and Bill Gates—have echoed some of his concerns. Google is even assembling an ethics committee to oversee its artificial intelligence work.

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