I think I've learned a lot about how to make movies, and particularly about how to edit movies by thinking about how similar problems are resolved in other forms. The issues in all forms are the same in an abstract sense, aren't they? Characterization, abstraction, metaphor, passage of time. . . Whether it's a movie, a novel, a play, or a poem, those issues exist. And each person resolves them differently.
Without rules you can't have anything, but you don't want to just be pedantic or obsessive. The painting is finished when it's working. The overall balance is right. Balance shouldn't be confused with design. There has to be restless jostle and aggression and a bit of dynamism, not just pat-ness or settled-ness or immediate pleasing-ness.