If sf's only distinguishing feature is that it serves 'interrogative functions' by means of its portrayal of analogical models or parallel worlds, then it is destined to disappear as a separate form, becoming in effect a subdivision of the novel of ideas. It is quite possible that the century of science fiction is over and that this form of expression born of late nineteenth-century scientific materialism has now run its course. (On the other hand, cultural history is littered with the premature obituaries of artistic forms.) The immediate cause of the genre's disappearance would be that science fiction understood as a metaphorical mode no longer has any necessary connection or concern with contemporary scientific developments.
If science fiction as metaphor is more or less played out, then it may be time to examine whether and under.....
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