I don't see how it matters if it involves science fiction or not.

I am looking for verisimilitude, so I am always asking myself if characters' actions make sense, consistency in the rules, and so forth. There has to be a kind of internal logic a story follows, even if characters constantly make stupid decision.

Most stories failed that test because writers don't care.

Here's an example: There are magic carpet everywhere that can fly, and yet nothing changed about the worldbuilding. People just drive cars and do all the modern things people do, except sometime you can see magic carpets showing up.