#FritzRuehr: « The Evolution of a #Haskell Programmer »
http://www.willamette.edu/~fruehr/haskell/evolution.html

« I think that the basic idea of the joke (successive variations on a theme, building in complexity) can serve a good #pedagogical purpose as well as a #humorous one. To that end, and for those who may not be familiar with all of the ideas represented above, I offer the following comments on the variations »