 I did a tremendous amount of work to put together a syllabus to do research for reading materials, studies, reports, et cetera, put together all the material to teach the class. And then after I taught it for a couple of semesters, I said, well, gee, I might as well write a book on this, but not an academic book, one for Main Street America. And that's what converted to American 2040, still a superpower, question mark.