 Day one. All right. So the first part of module one, we talked about the competitive advantage of a region. Okay. And we actually took a look at the writings of Michael Porter. Anybody who's gone through an MBA program, Katie, you know about Michael Porter for the general audience. Michael Porter is a pretty renowned economist, and he talks about how economies develop, right, to kind of keep it simple. And what we focused our attention on in that particular class was –