| Simon (aka Dumbledore) is speaking to four different Houses: scientists | (Ravenclaw), engineers (Hufflepuff), entrepreneurs (Slytherin), and | managers (Griffindor). I wish I could live up to this image! Lots of interesting ideas on this thread, and Haskell-Cafe threads are *supposed* to wander a bit. But, just to remind you all: I'm particularly interested in concrete examples (pref running code) of programs that are * small * useful * demonstrate Haskell's power * preferably something that might be a bit tricky in another language I have lots of *general* ideas. What I'm hoping is that I can steal working code for one or two compelling examples, so that I can spend my time thinking about how to present it, rather than on dreaming up the example and writing the code. (But don't let me inhibit wider-ranging discussion as well.) thanks Simon