I'll start a thread for the sci-fi genre.
My longest-running work is Space & Time (seven months and counting!), and it's set in a Galaxy that may or may not be far, far, away. The action takes place onboard a space station and focuses on an alien slave child, her master, and various other characters. It's sci-fi for those reasons.
I wonder what really makes something science fiction? I've been reading some classic sci-fi, such as Verne and Doyle and Stoker, and it's a lot different than modern sci-fi. Those stories are about innovative technology and application of new or unusual ideas. It was about the possibilities that science offers the imagination.
My stories merely use an exotic setting; there's really very little "science" in them at all. S&T is about a young girl coming of age under tough circumstances, not about gadgetry. So is it really sci-fi? Just how broad is this genre?
What are your thoughts on this?