Luis von Ahn
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About
Crowdsourcing pioneer and Duolingo CEO Luis von Ahn built the world's most downloaded education app on a mission to make quality education available to everyone.
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Massive-scale online collaboration
After re-purposing CAPTCHA so each human-typed response helps digitize books, Luis von Ahn wondered how else to use small contributions by many on the Internet for greater good. In this talk, he shares how his ambitious new project, Duolingo, will help millions learn a new language while translating the web quickly and accurately -- all for free.
TEDxCMU 2011Apr 2011
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