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''A World Out of Time'' is a science fiction novel by Larry Niven and published in 1976. It is set outside the Known Space universe of many of Niven's stories, but is otherwise fairly representative of his 1970s hard science fiction novels. The main part of the novel was originally serialized in ''Galaxy'' magazine as "Children of the State"; another part was originally published as the short story "Rammer". ''A World Out of Time'' placed fifth in the annual Locus Poll in 1977.〔(Locus Index to SF Awards )〕 == Plot summary == Jerome Branch Corbell has incurable cancer and is cryogenically frozen in the year 1970 in the faint hope of a future cure. His body is revived in 2190 by an oppressive, totalitarian global government called "The State". His personality and memories are extracted (destroying his body in the process) and transferred into the body of a mindwiped criminal. After he is awakened, he is continually evaluated by Peerssa, a "checker", who has to decide whether he is worth keeping. With the threat of mindwiping looming over his head, Corbell works hard to pass the various tests. Peerssa decides that Corbell is a loner and born tourist. This makes him an ideal candidate to be the pilot and sole passenger of a Bussard ramjet, whose mission is to find and seed suitable planets as the first step to terraforming them. Disgusted with the State's treatment of him as an expendable commodity, Corbell hijacks the ship and takes it to the centre of the galaxy. It was at this point that the original short story ended. Peerssa tries to talk him out of it, but fails. Peerssa and The State resort to subterfuge; an artificial intelligence program based on Peerssa's personality is secretly transferred into the ship's computer by way of the conversations. Though the Peerssa AI opposes the detour, it cannot disobey Corbell's direct orders. After a lengthy journey (including a close approach to the super-massive black hole at the galactic axis), possible only due to the suspended animation devices on board, Corbell returns to the solar system. Although only hundreds of years have passed on the ship, three million years have elapsed on Earth, due to relativistic time dilation. At first, he is confused and initially believes they might have come to the wrong system because it has changed considerably; the Sun has apparently evolved into a red giant and Earth is now in orbit around a super-hot Jupiter. Corbell and Peerssa eventually find that the solar system has been engineered into this new configuration in order to move the Earth to a habitable distance from the enlarged Sun, but this revelation only comes later in the book. Corbell puts the ship into orbit around the Earth. The Earth's climate has changed, despite its new location in orbit around Jupiter. Among the most important changes is the increased surface temperature; the poles are temperate, while the former temperate zones reach temperatures of over 50 degrees Celsius (120+ degrees Fahrenheit). The Earth's axial tilt is still 23.5 degrees so the poles experience 6 years of night and 6 years of day. Almost all remaining life on Earth has adapted to live in Antarctica. Elsewhere life is extinct except for some evidence of biological activity in the Himalayan mountains. When Corbell lands (in a modified biological probe), he is captured by Mirelly-Lyra, who is also a returned star ship pilot and refugee from the past—though from Corbell's (and Peerssa's) future. She explains that the human species has fragmented; it is dominated by a race of immortal, permanently pre-adolescent males (the Boys), who are created by advanced medical techniques. Some time in the past, they had defeated the equally immortal (though now extinct) Girls, in the ultimate war of the sexes. The Boys have enslaved the ''dikta'', who are unmodified humans (though they have evolved somewhat), from whom they take boys to replenish their ranks. A starship pilot, Mirelly-Lyra had initially been a captive toy of the Girls. After their downfall, she had spent her time obsessively searching in vain for the lost adult-immortality treatment, while extending her life as much as possible using her own drugs and a form of zero-time stasis with which she waited for another returning star ship and potential help. Because she could not stop the aging process entirely, she is an old crone by the time she finds Corbell. He manages to escape from her, only to be caught by the Boys, who take him to a dikta settlement. With Gording, the dikta leader, he escapes once more. Eventually, Corbell discovers the adult-immortality treatment, albeit by accident and only realizing it after he himself has been exposed to it. He uses it to enlist Mirelly-Lyra's help, which in turn finally gives him full control of his ship's technology (the hostile Peerssa has decided that the woman is the last survivor of the State and will only obey her). The planet Uranus has been discovered to have been maneuvered to pass by the Earth and adjust its orbit by Peerssa the AI. Corbell arranges for the Earth's distance from the super-heated Jupiter to be adjusted by Peersa to lower the Earth's temperature without destroying the plants and animals that have adapted to the extreme conditions. As the novel closes, he is plotting to liberate the dikta and enable them to regain control of their own destiny. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「A World Out of Time」の詳細全文を読む スポンサード リンク
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