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How I Built This with Guy Raz
How I Built This with Guy Raz

reCAPTCHA and Duolingo: Luis von Ahn (2020)

Dec 18, 2023 · 01:07:51
AI Summary
  • Luis von Ahn created CAPTCHA to solve Yahoo's bot problem, giving it away free.
  • Evolved the concept into Duolingo, monetizing language learning online.
  • Discusses the journey from solving spam to building a popular educational platform.

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