Echo chambers of other similarly minded people21 are already a common occurrence. But soon we will each have our own perfect echo chambers. It’s possible that these personalized AIs might ease the epidemic of loneliness22 that ironically affects our ever more connected world—just as the internet and social media connected dispersed subcultures. On

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What is the social cost of scaling a technology to millions of people who trust it for the most important life questions, if that technology lacks the critical insight to help a user who doesn’t know how to help themselves?