Five Best Ideas of the Day
Published each weekday, at noon.
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To understand why Walmart wants to buy TikTok, look at how Chinese teens shop online.
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America’s sleep doctors agree: Daylight saving time is bad for public health and safety.
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We must avoid the temptation to cut corners in the breathless hunt for a COVID-19 vaccine.
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The algorithm that America’s transportation planners use to plot road construction is often just plain wrong.
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How one university went to the sewers to head off a coronavirus outbreak.