Consider two possible views of the relationship between philosophy and science fiction.
On the first view, science fiction simply illustrates, or makes more accessible, what could be said as well or better in a discursive philosophical essay. Those who can’t stomach purely abstract discussions on the nature of time, for example, might be drawn into an exciting story; but seasoned philosophers can ignore such entertainments and proceed directly to the abstract arguments that are the meat of the philosophical enterprise.
On the second view, science-fictional storytelling has philosophical merit in its own right that is not reducible to abstract argumentation. For at least some philosophical topics, one cannot substitute for the other, and a diet of only one type of writing risks leaving you philosophically malnourished.
One argument for the second view holds that examples and thought-experiments play an ineliminable role in philosophical thinking. If so, we might see the miniature examples and thought experiments in philosophical essays as midpoints on a continuum from purely abstract propositions on one end to novel-length narratives on the other. Whatever role short examples play in philosophical thinking, longer narratives might also play a similar role. Perhaps entirely abstract prose leaves the imagination and the emotions hungry; well-drawn thought experiments engage them a bit; and films and novels engage them more fully, bringing with them whatever cognitive benefits (and risks) flow from vividly engaging the imagination and emotions. Ordinary literary fiction engages imaginative and emotive cognition about possibilities within the ordinary run of human experience; speculative fiction engages imaginative and emotive cognition about possibilities outside the ordinary run of human experience. Both types of fiction potentially deserve a central role in philosophical reflection about such possibilities.
[from the intro of "Philosophers Recommend Science Fiction", forthcoming in Susan Schneider, ed., Science Fiction and Philosophy, 2nd ed.]