Jacob Goldstein spent more than a decade as co-host of the Planet Money podcast. He's also the author of the book Money: The True Story of a Made-Up Thing, which the New…
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Luis von Ahn is the founder and CEO of the language app Duolingo. His problem: How do you teach people to speak a language — really speak it — using only an iPhone app?
On the surface, Duolingo looks warm and fuzzy. Underneath the hood, it’s a serious tech company built on artificial intelligence. But the best machine learning in the world still isn’t good enough to really teach people how to fluently speak in a new language. Luis is trying to change that.