For starters, see Rich Hickey's talk on "Hammock-Driven Development" for more on the "background mind" (http://blip.tv/clojure/hammock-driven-development-4475586), and then see how what Dan Pink is saying about motivation (http://www.ted.com/talks/dan_pink_on_motivation.html) and what Sebastian Deterding is saying about gamification (http://www.youtube.com/watch?v=7ZGCPap7GkY) all connect into what Cleese is saying about creativity.