Because education is such a broad area, I chose to focus on language learning.

I am always able to keep a laser focus on one thing at a time without getting distracted. It helps that I try to break everything I do into small, achievable tasks.

I worked on a number of projects that were used by millions of people and that also served as inspiration to what we now call "crowd-sourcing."

Before the Internet, coordinating more than 100,000 people, let alone paying them, was essentially impossible. But now with the Internet, I've just shown you a project where we've gotten 750 million people to help us digitize human knowledge.

Because education is such a broad area, I chose to focus on language learning.

[Captchas] are not only annoying, but they kill 10 seconds of your time.

It's hard to think of a time when I'm not working, but when that is the case, I like to travel and eat good food.