Once again, my love of nonfiction is going to help me become a better science fiction writer. Neil Price admits that the Viking culture he teaches now is not precisely the culture he taught years ago. As he has explored more digs and re-evaluated the artifacts, he has come to different conclusions about them and the people who used them. Not only is this exciting to me – there is still more to learn! – it is a valuable tool when I create the worlds my characters inhabit. One single artifact could upend everything I’ve thought about my characters, opening up new plot lines (or possibly cleaning up old ones). I don’t have to create a detailed economic system for my alien worlds, but I can hint at it with the tools and market places I describe. My readers are likely to be interested in other government or religious systems only as they explain who my characters are. You can learn a lot about describing alien societies by reading how archaeologists and anthropologists describe human societies so far removed from our culture that they may as well have come from another planet.
Luck and wisdom!