Richard understood and acknowledged all of this—and did not care. "Did you, or did you not, tell me that this was all marketing? What part of your own statement did you not understand?" The purpose of the exercise was not really to build a rational, efficient airport security system. It was, rather (to use yet another of those portentous phrases cribbed from the math world), an existence proof. Once it was up and running, they could point to it and to its 100 percent success rate as vindicating the premise of APPIS, which was that real-world problems—especially problems that were difficult to solve because of hard-wired deficiencies of the human neurological system, such as the tendency to become bored when given a terrible job—could be tackled by metaphrasing them into Medieval Armed Combat scenarios, and then (here brandishing two searingly hip terms from high tech) putting them out on the cloud so that they could be crowdsourced.