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  1. Crown Levels: A Royal Redesign

    Recently, Duolingo rolled out one of its biggest redesigns in years: Crown Levels. We wanted to make the learning experience even better by surfacing more challenging content while keeping Duolingo fun and motivating. Six months later, we have some exciting results!

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  2. How I Saved Duolingo $40,000/year in my Summer Internship

    And Now for Something Completely Different

    As a Mathematics PhD candidate at MIT, many might guess that I spent my summer doing academic research on computational geometry (or something of the sort).

    Instead, I jumped at the opportunity to do something completely different with my summer: I accepted an internship …

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