Ohh, yes, I love to read fiction and accidentally learn about all kinds of interesting things because the writer did their homework. I mean, not everything in fiction is fiction. It's indeed a good way to distinguish good from bad writing!

Bad writing is always missing something: emotions, knowledge, details, complexity ...

When I write stuff, I also usually look up a lot, even or especially if it's about stuff I'm already "supposed to know." Don't want to say something wrong on a topic I present myself as some kind of authority. Writing guides like #436752 or #221471 are good examples of that.

Thanks for the link!