I think that if the novel's task is to describe where we find ourselves and how we live now the novelist must take a good hard look at the most central facts of contemporary life – technology and science.
Certainly going back to Sherlock Holmes we have a tradition of forensic science featured in detective stories.
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Beyond that I seem to be compelled to write science fiction rather than fantasy or mysteries or some other genre more likely to climb onto bestseller lists even though I enjoy reading a wide variety of literature both fiction and nonfiction.