of Future History, even though they were included in The Past Through Tomorrow: "Life-Line" (which was written before Heinlein published the Future History chart; however, Lazarus Long does reference the protagonist of "Life-Line" and his device in Time Enough for Love), "The Menace from Earth", "—We Also Walk Dogs", and the stories originally published in the Saturday Evening Post ("Space Jockey", "It's Great to Be Back!", "The Green Hills of Earth", and "The Black Pits of Luna"). He agrees with Gifford that "Let There Be Light" should be included. The story "—And He Built a Crooked House—" was included only in the pre-war chart and never since. The Heinlein juveniles do not hew closely to the Future History outline. Gifford states that "Although the twelve juvenile novels are not completely inconsistent with the Future History, neither do they form a thorough match with that series for adult readers. It is not often recognized that they are a reasonably consistent 'Future History' of their own... At least one major story specified in the Future History chart, the revolution on Venus, ended up being told in the framework of the juveniles as Between Planets." The novel Variable Star, written by Spider Robinson from Heinlein's detailed outline, incorporates some elements of both the Future History (such as references to Nehemiah Scudder) and the universe of the Heinlein juveniles (for example, torch ships and faster-than-light telepathic communication between twins). The adult short story "The Long Watch", included in Future History story collections, connects to Space Cadet through the character of (John) Ezra Dahlquist, the central character of the first, memorialized in the second. Patterson cites "World as Myth" as a way of accounting for the deviation of real history from Heinlein's imagined future as well as inconsistencies between stories, writing, "Heinlein in the World as Myth books redefined the Future History as a timeline (or bundle of related timelines) ... which allows the 'Future History' to be a hard-edged term and yet nevertheless contain inconsistencies (i.e., any inconsistency belongs to a closely-related timeline)." Stories never written The chart published in the collection Revolt in 2100 includes several unwritten stories, which Heinlein describes in a postscript. "Fire Down Below", about a revolution in Antarctica, would have been set in the early 21st century. Three more unwritten stories fill in the history from just before "Logic of Empire" in the early 21st century through the beginning