OK, so there's basic things in a genre like story idioms, language used, explanations of magic or inventions or whatever that differ from any other genre. But what I want to know is what you personally feel to be the most important part of your chosen genre; that is, when you're writing what is the thing apart from characterisation, plot structure etc that you focus on most. The unnecessary element that you include. Personally, as a science fiction writer, I feel colloquialisms/slang are the most important part of a sci fi story. It's in the future, and even in present times things aren't called what they are. There's slang for them, and it's this slang which really brings the world of the story alive for the reader. Story-writing in general requires empathy from the reader for the characters' different worlds that they live in, and creating unique slang is an easy way of doing this. What are your thoughts?