Interpretations of 2001: A Space Odyssey machines". Kubrick was also confronted with the fact that, during the production of the film, the US and USSR had agreed not to put any nuclear weapons into outer space by signing the Outer Space Treaty. Alexander Walker in a book he wrote with Kubrick's assistance and authorisation, states that Kubrick eventually decided that as nuclear weapons the bombs had "no place at all in the film's thematic development", now being an "orbiting red herring" which would "merely have raised irrelevant questions to suggest this as a reality of the twenty-first century". In the Canadian TV documentary "2001 and Beyond",
2001: A Space Odyssey (novel) becomes an immortal 'Star Child' that can live and travel in space. The Star Child then returns to Earth, where he detonates an orbiting nuclear warhead. This is not discussed again until the sequel to the book, "". "2001: A Space Odyssey" explores technological advancement: its promise and its danger. The HAL 9000 computer puts forward the troubles that can crop up when man builds machines, the inner workings of which he does not fully comprehend and therefore cannot fully control. The book explores the perils related to the atomic age. In this novel, the Cold War is apparently still