TITLE: 95:1 AUTHOR: Eugene Wallingford DATE: January 07, 2018 10:25 AM DESC: ----- BODY: This morning, I read the first few pages of In the Blink of an Eye, an essay on film editing by Walter Murch. He starts by talking about his work on Apocalypse Now, which took well over a year in large part because of the massive amount of film Coppola shot: 1,250,000 linear feet, enough for 230 hours of running time. The movie ended up being about two hours and twenty-five minutes, so Murch and his colleagues culled 95 minutes of footage for every minute that made it into the final product. A more typical project, Murch says, has a ratio of 20:1. Even at 20:1, Murch's story puts into clearer light the amount of raw material I create when designing a typical session for one of my courses. The typical session mixes exposition, examples, student exercises, and (less than I'd like to admit) discussion. Now, whenever I feel like a session comes up short of my goal, I will think back on Murch's 20:1 ratio and realize how much harder I might work to produce enough material to assemble a good session. If I want one of my sessions to be an Apocalypse Now, maybe I'll need to shoot higher. This motivation comes at a favorable time. Yesterday I had a burst of what felt like inspiration for a new first day to my Programming Languages course. At the end of the brainstorm came what is now the working version of my opening line in the course: "In the beginning, there was assembly language.". Let's see if I have enough inspiration -- and make enough time -- to turn the idea into what I hope it can be: a session that fuels my students' imagination for a semester's journey through Racket, functional programming, and examining language ideas with interpreters. I do hope, though, that the journey itself does not bring to mind Apocalypse Now. -----