reCAPTCHA and Duolingo: Luis von Ahn

reCAPTCHA and Duolingo: Luis von Ahn

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 Yahoo email accounts, and generating tons of spam. Luis' idea to solve this problem became CAPTCHA, the squiggly letters we type into a website to prove we're human. He gave away that idea for free, but years later, that same idea had evolved into a new way to monetize language learning on the web, and became Duolingo. Today, the popular app is valued at $1.5 billion, and is seeing a big spike in growth while people are confined to their homes. See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

Episoder(819)

Advice Line: Scaling Strategies

Advice Line: Scaling Strategies

This week, Guy is joined by Travis Boersma of Dutch Bros. Coffee, Michael Preysman of Everlane and Chris Ruder of Spikeball in a special “mashup” episode of Advice Line.First, Andy from Nashville is w...

22 Mai 202544min

Tecovas: Paul Hedrick

Tecovas: Paul Hedrick

Western wear is having a moment – and so is the upstart Western brand Tecovas. Founder Paul Hedrick is a Texan who realized that cowboy boots were either too expensive or too cheap, so he decided to c...

19 Mai 20251h 12min

Advice Line with RJ Scaringe with Rivian

Advice Line with RJ Scaringe with Rivian

Rivian founder and CEO RJ Scaringe joins Guy on the Advice Line to answer questions from three early-stage founders. He also gets into how trade policies and shifting tariffs are impacting the automot...

15 Mai 202552min

Substack: Chris Best and Hamish McKenzie

Substack: Chris Best and Hamish McKenzie

Substack was founded to create an escape vehicle for writers: Chris Best and Hamish McKenzie imagined a world where writers didn’t have to rely on legacy publications or corporate advertisers, but cou...

12 Mai 20251h 18min

Advice Line with Richard Branson of Virgin

Advice Line with Richard Branson of Virgin

Virgin Group founder Richard Branson joins Guy on the Advice Line, where they answer questions from three early-stage founders. Plus, Richard’s recent adventures in bungee jumping, ziplining, space ex...

8 Mai 202542min

Whisker/Litter-Robot: Brad Baxter

Whisker/Litter-Robot: Brad Baxter

Brad Baxter sidelined a promising career in the car industry to build a better cat litter box – an undertaking that embarrassed his kids and eventually prompted his wife to ask "what’s the endgame her...

5 Mai 20251h 4min

Advice Line with Luis von Ahn of Duolingo

Advice Line with Luis von Ahn of Duolingo

Duolingo co-founder Luis von Ahn joins Guy on the Advice Line to answer questions from three early-stage founders. Plus, Luis shares insights on how data can help entrepreneurs understand what their c...

1 Mai 202547min

Hexclad: Danny Winer

Hexclad: Danny Winer

Cookware is a $73 billion global industry - awash in all kinds of pots and pans. Like, if you’ve ever cooked scrambled eggs, you've probably used a non-stick frying pan. They’re inexpensive and everyw...

28 Apr 20251h 15min

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