For Want of a Nail

Science fiction is a genre of fiction dealing with imaginary but more or less plausible content such as future settings, futuristic science and... technology, space travel, aliens, and paranormal abilities. Exploring the consequences of scientific innovations is one purpose of science fiction, making it a "literature of ideas". Science fiction is largely based on writing rationally about alternative possible worlds or futures. It is similar to, but differs from fantasy in that, within the context of the story, its imaginary elements are largely possible within scientifically established or scientifically postulated laws of nature . The settings for science fiction are often contrary to known reality, but most science fiction relies on a considerable degree of suspension of disbelief, which is facilitated in the reader's mind by potential scientific explanations or solutions to various fictional elements. Science fiction elements include: Science fiction is difficult to define, as it includes a wide range of subgenres and themes.
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A novel is a book of long narrative in literary prose. The genre has historical roots both in the fields of the medieval and early modern romance and... in the tradition of the novella. The latter supplied the present generic term in the late 18th century. Further definition of the genre is historically difficult. The construction of the narrative, the plot, the way reality is created in the works of fiction, the fascination of the character study, and the use of language are usually discussed to show a novel's artistic merits. Most of these requirements were introduced in the 16th and 17th centuries, in order to give fiction a justification outside the field of factual history. The individualism of the presentation makes the personal memoir and the autobiography the two closest relatives among the genres of modern histories. The fictional narrative, the novel's distinct "literary" prose, specific media requirements , a characteristic subject matter that creates both intimacy and a typical epic depth can be seen as features that developed with the Western market of fiction.
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Speculative fiction is an umbrella term encompassing the more fantastical fiction genres, specifically science fiction, fantasy, horror, supernatural... fiction, superhero fiction, utopian and dystopian fiction, apocalyptic and post-apocalyptic fiction, and alternate history in literature as well as related static, motion, and virtual arts. Speculative fiction as a category ranges from ancient works to both cutting edge, paradigm-changing and neotraditional works of the 21st century. Speculative fiction can be recognized in works whose authors' intentions or the social contexts of the versions of stories they portrayed is now known, since ancient Greek dramatists such as Euripides whose play Medea seems to have offended Athenian audiences when he fictionally speculated that shamaness Medea killed her own children instead of their being killed by other Corinthians after her departure, and whose Hippolytus, narratively introduced by Aphrodite, Goddess of Love in person, is suspected to have displeased his contemporary audiences because he portrayed Phaedra as too lusty.
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