Luis von Ahn
Entrepreneur and Computer Scientist
Luis von Ahn ([ˈlwis fon ˈan]; born 19 August 1978) is a Guatemalan entrepreneur and a Consulting Professor in the Computer Science Department at Carnegie Mellon University in Pittsburgh, Pennsylvania. He is known as one of the pioneers of crowdsourcing. He is the founder of the company reCAPTCHA, which was sold to Google in 2009, and the co-founder and CEO of Duolingo, a popular language-learning platform.