Before Luis von Ahn co-founded Duolingo, a gamified language-learning app used by hundreds of millions around the world, he was fixated on squiggly letters. The entrepreneur was a co-inventor of CAPTCHA and reCAPTCHA, or those security prompts you get while browsing the web to verify if you are a human or if you are a […].


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Checkout this section for curated Articles & Videos published worldwide by TechCrunch, an American online publisher.

Checkout this section for curated Articles & Videos published worldwide by TechCrunch, an American online publisher.

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