The Confessional Art of Secrecy and Celebration

China’s flip-flopping on video-game regulation reveals a messy message: leaders want to encourage “hard tech” such as chips and AI over the consumer kind—without sparking another costly crackdown. We ask Mark Carney, a former central-bank governor, whether he has ambitions to lead Canada (09:16). And why so many social-media types want to share their diaries online (18:19). 

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