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(817)

Advice Line with Angie Hicks of Angi

Advice Line with Angie Hicks of Angi

Angie Hicks, founder of Angi (formerly Angie’s List), joins Guy on the Advice Line where they answer questions from three early-stage founders. First we meet Paige, a dirt bike rider in Southern Calif...

31 Okt 202449min

Black Diamond Equipment: Peter Metcalf

Black Diamond Equipment: Peter Metcalf

In 1989, after years of scaling some of the most challenging peaks in the world, Peter Metcalf took on a daunting new risk: resuscitating a bankrupt climbing-equipment company, and putting himself int...

28 Okt 202454min

What It Really Takes To Build a Food Business: Part 2

What It Really Takes To Build a Food Business: Part 2

This is part two of our special series on building food businesses presented by Klaviyo. If you haven't heard part one from last week, go back and check it out.In that episode, three founders of three...

25 Okt 202437min

Advice Line with Michael Preysman of Everlane

Advice Line with Michael Preysman of Everlane

Everlane co-founder and former CEO Michael Preysman joins Guy on the Advice Line where they answer questions from three early-stage founders. First we meet Todd in the Bay Area, who’s looking to spre...

24 Okt 202449min

21 Seeds: Kat Hantas

21 Seeds: Kat Hantas

Kat Hantas turned her home hobby of infusing Tequila into a $160 million business. Her story began when her nightly glass of wine started to give her headaches, and her doctor recommended she replace ...

21 Okt 20241h 6min

What It Really Takes To Build a Food Business: Part 1

What It Really Takes To Build a Food Business: Part 1

Innovation is a constant in the food industry. But it’s incredibly difficult to go from a tasty idea to an actual spot on the grocery store shelves. So if you have an idea for a food business, how do ...

18 Okt 202436min

Advice Line with Lara Merriken of LÄRABAR

Advice Line with Lara Merriken of LÄRABAR

LÄRABAR founder Lara Merriken joins Guy on the Advice Line, where they answer questions from three early-stage founders. Plus, Lara discusses her latest venture: a coaching service for entrepreneurs.F...

17 Okt 202450min

Viator: Rod Cuthbert

Viator: Rod Cuthbert

Clicking a button to book vacation tours might feel normal today, but Rod Cuthbert helped create that future through his company, Viator. Founded in the early days of the internet boom, Viator emerged...

14 Okt 20241h 9min

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