Some of my favorite sci fi authors often throw in a dash of Fantasy.
Look at Anne McCaffrey’s Pern books, which included dragons (albeit genetically created ones).
Or many of Sheri Tepper’s books, that create a Fantasy-like setting in a post-apocalyptic world.
I even wrote an “elf in the future” story that I hope to get published one of these days. When it’s done right, I LOVE mixing these two genres.
But it’s not always done right.
So what do you think? Do elves, dwarves and wizards have a place in Sci Fi? Or do you prefer your science fiction neat, not diluted with outside genre influences?