The basic idea of Games With a Purpose is that we are taking a problem that computers cannot yet solve, and we are getting people to solve it for us while they are playing a game.
Am I a slacker? I can be a slacker. When I was in college, most people got summer jobs for college or did research during college. I went home and watched TV the whole day for three months; it was really awesome.
Our team at Duolingo is really cohesive, but this did not just happen. I made a concerted effort to hire people who are going to play nice.
Game design is a funny thing. There are people out there who are really good at it, but it's not clear that they can teach it. It's a very intuitive process. It's an art.
People are good at figuring out what's attractive, and computers are good at quickly searching and finding. You put them together, and bang!
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.