Hugh Pickens writes: "Kevin Kelly has an interesting post about a letter he found from Robert Heinlein from Kelly's days editing the Whole Earth Catalog with Heinlein's own nerdy solution to a problem common to famous authors: how to deal with fan mail. In the days before the internet, Heinlein's solution was to create a one page FAQ answer sheet — minus the questions. Then he, or rather his wife Ginny, checked off the appropriate answer and mailed it back. Some of the entries in Heinlein's answer sheet are quite illuminating and amusing. Our personal favorite: "You say that you have enjoyed my stories for years. Why did you wait until you disliked one story before writing to me?""