The fundamental question that we are going to have to ask them is with any form of gamefication, any example like the infamous Foursquare badges which I have referred to several times, where do they fit? Are these intrinsic or extrinsic motivators? And the short answer is they're both. They can be one, they can be the other. It depends on the context. It depends on the system overall and what specifically is being rewarded, and how it's placed within the system. Whether it is something about status or about getting people some stuff or something else. Or whether it's an intrinsic motivator. Maybe I get this badge here, I don't even know what this Mr. Bill is here but it looks kind of fun, maybe I get that just because it's fun. Because I enjoy the thought of having a Mr. Bill logo on my profile page on Foursquare not because of anything I get in any tangible or intangible way for it, I just like it. That's intrinsic motivation and that can be the result of something like badges just as much as the extrinsic motivators. But as I talked about, the behaviorist path towards gamification tends to miss that. It tends to focus more on the other kinds of motivators.