That may the difference between good world-building and what people think good world-building is.
People think that if the author doesn't know everything about the world, it's not "fleshed out". But if you look to some of the best fiction out there, the world is more suggested than built.
I think a good example of this is George Lucas. He went from good to bad by doing the thing people perceived as good. In the original Star Wars trilogy, things just are. The Clone Wars were a line. A throwaway to explain why Leia was seeking out Obi-Wan never having even seen the man. Han and all of his pre-trilogy relationships are given surface level explanations. You never go deep. What happens between A New Hope and Empire is suggested, alluded to, but never explained. And why should they be explained? All the characters know these things. There's no need to exposit these things again. You're given the impression that there exists a much larger world than the small window you've seen.
Then, in the prequel trilogy, everything is presented as backstory to some other element. Stormtroopers are the successors of the Clone Troopers who are cloned from Jango Fett who had a clone made of himself he named Boba. Of course, Jango is also a bounty hunter. Anakin is from Tatooine. Chewbacca rolled with Yoda back in the day. We know, biologically, exactly what allows people to access the Force. And on and on. Everything is given an explanation. And that, ironically, makes the world feel a lot smaller.
People think that if the author doesn't know everything about the world, it's not "fleshed out". But if you look to some of the best fiction out there, the world is more suggested than built.
I think a good example of this is George Lucas. He went from good to bad by doing the thing people perceived as good. In the original Star Wars trilogy, things just are. The Clone Wars were a line. A throwaway to explain why Leia was seeking out Obi-Wan never having even seen the man. Han and all of his pre-trilogy relationships are given surface level explanations. You never go deep. What happens between A New Hope and Empire is suggested, alluded to, but never explained. And why should they be explained? All the characters know these things. There's no need to exposit these things again. You're given the impression that there exists a much larger world than the small window you've seen.
Then, in the prequel trilogy, everything is presented as backstory to some other element. Stormtroopers are the successors of the Clone Troopers who are cloned from Jango Fett who had a clone made of himself he named Boba. Of course, Jango is also a bounty hunter. Anakin is from Tatooine. Chewbacca rolled with Yoda back in the day. We know, biologically, exactly what allows people to access the Force. And on and on. Everything is given an explanation. And that, ironically, makes the world feel a lot smaller.