I began this as a reply to Timothy Morton's extremely helpful comment on entropy in letters and words (following Shannon, whom I've used elsewhere in discussing the editing of Shakespeare). In fact all the comments were wonderful, so let me say thanks. Thanks!

You know how people will sometimes hum a phrase or say a word or two that haunts them, as though just that phrase, just those words, could mean everything? It's the literary equivalent of the magical name of the beloved. I need only think: Belinda or Geoffrey