In 2000, Luis von Ahn was starting his PhD in computer science when he attended a talk and happened to learn about one of Yahoo's biggest problems: automated bots were signing up for millions of free ...Show More
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chonkosaurus recommended:Oct 5th, 2023
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nubji recommended:Jun 22nd, 2022
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mueleric recommended:Oct 19th, 2021
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mm recommended:Jul 14th, 2021
Did not know that reCAPTCHA and Duolingo was related! What a great story about how game-changing tech came to be. Rare stories of how tech has really benefited the world in positive ways.
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cpr recommended:May 15th, 2021
Absolutely loved this! Especially being an avid Duolingo user. I knew about about how it all came together but they really go into details here ππΌ
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aninatd recommended:Sep 8th, 2020
Great episode, several great innovations! Loved learning about the story of Duolingo. Itβs such a great educational tool!
dannySep 8th, 2020
Totally! Its one of my favourite episodes of How I Built this :)
danny recommended:May 26th, 2020
This guy invented CAPTCHA + Duolingo! Definitely came away thinking he's a special entrepreneur + came away rooting for him.
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ian recommended:May 30th, 2020
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