He chose Colorado Springs because the growth of the city falls in line with a parallel of the growth of the fast food industry. It is the city that is on the cutting edge, there is lots of high tech stuff in the area, and the mentality that is often found in these types of places is there too, the love and almost worship of new technology and gadgets. He wanted the book to be in the American West, the section of American that showcases the spirit of independence, freedom and self reliance. These are also the same qualities that the fast food industry is working hard to eliminate in people.
