Big "A" Little "i": EuroPython slides

Here are the slides from my EuroPython 2012 talk. Now that I have developed these ideas into a talk, I am not sure whether or not I will go back to complete the series I started on this topic. There was some interest in turning this material into a short training course, that is appealing to me as I was not happy with how brief I had to be to fit the ideas into a 45 minute talk.