On What Really Matters, Walter Russell Mead discusses the public spat between Donald Trump and Elon Musk, the artificial intelligence threat to white-collar jobs, Ukraine’s drone attack on Russian aircraft, and Zero Day, a new 10-part Taiwanese TV drama about a war with China.

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Taiwanese troops hold a flag amid military readiness drills on January 11, 2023, in Kaohsiung, Taiwan. (Getty Images)