Five Best Ideas of the Day
Published each weekday, at noon.
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In 18 years, a college degree could cost about $500,000.
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Our voice-controlled devices are great — unless you have a non-American accent.
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One problem with tracking digital meddling: Online, nobody knows you’re a Russian bot.
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This is how grandmothers in Zimbabwe are helping to fight depression.
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Whatever politicians say, we need more immigration, not less.