in his afterword to the story, farmer mentions the triple revolution memo, a document sent to united states president lyndon johnson in 1964, with policy suggestions for the future of the nation in the face of "three separate and mutually reinforcing revolutions." these were identified as "the cybernation revolution," (massive automatic production, requiring progressively less human labor), "the weaponry revolution" (the development of new forms of weaponry which can obliterate civilization), and "the human rights revolution" (a universal demand for human rights).