# Good Science Fiction is Hard to Vary What separates the good science fiction from the fantasy science fiction, the lazy science fiction? The formula for great science fiction is supposed to be: you invent a fictional piece of science and then you explore the ramifications of it, both in science and in society. > Good Science Fiction is Hard to Vary. To be science fiction rather than fantasy, there has to be a world that makes sense, that has laws of physics, that has a society that makes sense. --- Date: 20241205 Links to: Tags: References: * [The Deutsch Files I](https://nav.al/deutsch-files-i)