I enjoyed the introduction. I just picked up “The mind of the Maker” by Sayers, which Fred Brooks cites in The Mythical Man Month: “ Dorothy Sayers, in her excellent book, The Mind of the Maker, divides creative activity into three stages: the idea, the implementation, and the interaction. A book, then, or a computer, or a program comes into existence first as an ideal construct, built outside time and space, but complete in the mind of the author.” He goes on to say how the user meets the mind of the maker in the interaction: “The creation is complete when someone reads the book, uses the computer, or runs the program, thereby interacting with the mind of the maker.”