How Duolingo’s CEO went from being a 10-year-old video-game bootlegger to building a $700 million company
You may never have heard of Luis von Ahn. But if you’ve ever verified that you’re not a robot online, you’ve probably used something he created. And that’s fine by him. He doesn’t read stories about himself, and when he says he’s not motivated by money, he sounds sincere. Read more at Business Insider