A friend of mine once found himself studying overseas, finally putting to use the Japanese lessons his parents had forced him to take. To that end, he took to making puns that could only be understood by people with a working knowledge of two languages—something I’d only ever appreciated in the abstract, until yesterday, when I wrote a tweet I thought particularly funny, but which could only be untangled by someone who knew their Simon and Garfunkel, followed Toronto politics (circa 1974), listened to CBC Radio, and still had enough wits about them to pull the whole thing together.