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(818)

Live Episode! Milk Bar: Christina Tosi

Live Episode! Milk Bar: Christina Tosi

For Christina Tosi, baking wasn't just a delicious childhood hobby – it was a daily creative outlet and a way to blow off steam. After college, she went to culinary school and honed her pastry techniq...

14 Okt 20191h 4min

The Knot: Carley Roney & David Liu (2018)

The Knot: Carley Roney & David Liu (2018)

When Carley Roney and David Liu got married, they had a seat-of-the-pants celebration on a sweltering Washington rooftop. They never planned to go into the wedding business, but soon saw an opportunit...

7 Okt 201955min

Live Episode! Walker & Company: Tristan Walker

Live Episode! Walker & Company: Tristan Walker

The very first time Tristan Walker shaved, he woke up the next morning with razor bumps all over his face. "I was like, what is this?" he remembers saying. "I am never shaving again—ever." He soon dis...

30 Sep 20191h 1min

Headspace: Andy Puddicombe and Rich Pierson

Headspace: Andy Puddicombe and Rich Pierson

Andy Puddicombe is not your typical entrepreneur – in his early twenties, he gave away everything he owned to train as a Buddhist monk. But after ten years, he decided he wanted to bring the benefits ...

23 Sep 20191h 12min

Stitch Fix: Katrina Lake (2018)

Stitch Fix: Katrina Lake (2018)

In 2010, Katrina Lake recruited 20 friends for an experiment: she wanted to see if she could choose clothes for them that accurately matched their style and personality. That idea sparked Stitch Fix, ...

16 Sep 201952min

Dippin' Dots: Curt Jones

Dippin' Dots: Curt Jones

In the late 1980s, Curt Jones was working in a Kentucky lab, using liquid nitrogen to flash-freeze animal feed. He wondered if he could re-invigorate his favorite dessert by pouring droplets of ice cr...

9 Sep 20191h 6min

The Life Is Good Company: Bert and John Jacobs

The Life Is Good Company: Bert and John Jacobs

In the late 80s, brothers Bert and John Jacobs were living as nomads, traveling from college to college selling t-shirts out of their van. It wasn't a sustainable living – until one day, they created ...

2 Sep 20191h 1min

Aden + Anais: Raegan Moya-Jones (2019)

Aden + Anais: Raegan Moya-Jones (2019)

Cotton muslin baby blankets are commonplace in Australia, where Raegan Moya-Jones grew up. But when she started a new life and family in NYC, she couldn't find them anywhere. So in 2006, she started t...

26 Aug 201950min

Populært innen Business og økonomi

lydartikler-fra-aftenposten
stopp-verden
dine-penger-pengeradet
e24-podden
rss-penger-polser-og-politikk
rss-borsmorgen-okonominyhetene
livet-pa-veien-med-jan-erik-larssen
finansredaksjonen
pengepodden-2
pengesnakk
utbytte
rss-sunn-okonomi
morgenkaffen-med-finansavisen
stormkast-med-valebrokk-stordalen
liberal-halvtime
tid-er-penger-en-podcast-med-peter-warren
lederpodden
rss-politisk-preik
okonomiamatorene
rss-markedspuls-2