Secret Leaders

If you’re not one of their 500 million users, Duolingo is a phenomenally successful app where you practise a language in small chunks every day. Launched in 2012, it has become the number one language learning app and the most downloaded education app in the world. The company floated in 2021 and currently has a market cap of just under 4 billion dollars.  It’s rare for a founder to be brilliant at both invention and business but Luis Von Ahn, the Co-Founder and CEO of Duolingo, is one of them. Before Duolingo, he invented Captcha - those squiggly letters you have to write out to prove you’re not a computer. The guy’s a genius, and that’s a fact. He actually won an award for being one in 2006, the prestigious Macarthur Fellows Program award. It’s colloquially known as the genius grant, because it’s said you have to be one to get it.  Luis grew up in a single parent household in Guatemala. His mother spent all the money she could sending him to the best school she could afford. This experience, of seeing the d