Author posts

The Future of One-on-One Education, with Duolingo's Luis von Ahn

It's been proven that students taught by a personal tutor perform two standard deviations higher than those in a classroom. Luis von Ahn wants to replicate this effect with technology.

Digitizing Old Books Using Human Computation and reCAPTCHA, with Luis von Ahn

Luis von Ahn, CEO of Duolingo and one of the inventors of CAPTCHA, explains how reCAPTCHA harnesses the abilities of both humans and computers in order to accomplish tasks such as the digitization of old books.