reCAPTCHA and Duolingo: Luis von Ahn

Today’s callers: Mercedes in Utah tries to find harmony between quality and speed as she scales her concert attire brand for musicians. Then Danny in Colorado grapples with the tradeoffs of growing his sustainable and functional coffee brand. And Riya in Illinois wonders how to b ...  Show more

Stories about starting a business are almost always full of drama. They’re about ambition, loss, triumph, catastrophe, resilience. And they’re also full of life lessons – which is why Guy Raz launched How I Built This 10 years ago: He wanted to host a free master class in entrepr ...  Show more

Duolingo has fundamentally changed the landscape of self-guided education, starting with language learning. It is now a $9B publicly traded company in a space where everyone thought you could never build a large and exciting company. We’re joined by Duolingo founder and CEO, Luis ...  Show more

Crowdsourcing is more than a group of people interested in the same cause, it’s a way to tap skills – and scale – that you don’t have. And when it works, it can be the rocket fuel that launches you to scale further than you could have ever imagined. No one knows this better than ...  Show more

Crowdsourcing is more than a group of people interested in the same cause, it’s a way to tap skills – and scale – that you don’t have. And when it works, it can be the rocket fuel that launches you to scale further than you could have ever imagined. No one knows this better than ...  Show more

Luis von Ahn was a tenured professor of computer science at Carnegie Mellon University who had sold a company to Google. “You were pretty set, a lot of us would say, so why were you so hungry to build something new with Duolingo?” asks Ayesha Karnik, MBA ’25. 

“For ...