"All writers, in all viewpoints, must choose which information and scenes will be presented, and in w..." — Nancy Kress

Novels have much more space than short stories, which gives you more leeway with the number of characters you can include. Even 'furniture' characters can be described and given speaking parts to develop background or atmosphere.

Words change over time. 'Condescending,' for instance, was once a good thing to be. It meant that a person was willing to interact politely with people of lower social ranks. In Jane Austen's world, a lady praised for her condescension was receiving a sincere compliment.

There are writers whose first drafts are so lean, so skimpy, that they must go back and add words, sentences, paragraphs to make their fiction intelligible or interesting. I don't know any of these writers.

All nonmimetic fiction is a balancing act between 'reality' and the obviously unreal, with no attempt by the author to make the latter seem like the former. Sometimes it's not an easy tightrope to walk. But when it succeeds, such fiction can brilliantly illuminate the human condition.