Here’s a thought on the science fiction vs. fantasy discussion, primarily from my perspective as a writer rather than a reader. One of the reasons that I write much more fantasy than science fiction is that as a reader I find that fantasy wears significantly better than science fiction. If I pick up a stack of 30 year old sf and fantasy I find that the fantasy is usually much more current and quite a bit less likely to have been rendered moot or obsolete by the passage of time. For me this is true even with sf and fantasy titles that I loved when I first read them in the 80s when I was reading about even amounts of both genres. As a writer it’s certainly my hope that people will still find at least some of what I write worth reading a hundred years from now and I feel that writing more fantasy than science fiction increases my odds dramatically.