Noam Cohen writes in the New York Times on xkcd.
FOR a certain subset of Internet users, “Sudo make me a sandwich” may as well be “Take my wife ... please.”
Perhaps some explanation is in order. Before giving up the goods, however, we should heed the warning of Randall Munroe, the 23-year-old creator of xkcd, a hugely popular online comic strip (at least among computer programmers) where the sandwich line appeared. Mr. Munroe believes that analyzing a joke is like dissecting a frog — it can be done, but the frog dies.