Are there any sci fi people here. It's a genre I admire, though don't really know how to tackle. I normally do stuff about demons and monsters, but I have what could be a good idea, and a handful of other ideas. However, as I said I am a fantasy writer, not one who knows much of the tropes of science fiction other than say star wars and that's more fiction than science anyways. What makes a good science fiction book to you and what should I know before tackling the genre. I guess I should explain on the idea some to see if that helps. Basically, mankind lives on a few star ships, stations, and a settlement on some planets in our galaxy. There is a single leader who through scientific advancements is over a hundred thirty years old and still in his late prime. the main theme of the story though is the idea that even though we've left earth and the chaos and pollution we left behind, there's still the same destructive concepts that doom our civilization to this day. Greed, monarchy style ruling system, money, all the likes.