[Ursa major]

Doesn't the level of acceptible detail depend on whether a reader is simply following the story or willing to immerse themselves in the created world; and on whether the story is vivid enough to keep the reader's attention while the richness of that world, and of its creator's imagination, is described?

Books can be too short, in which case they may not allow the richness of the invention time to blossom in the reader's mind; and what may be left after overenthusiastic pruning is a series of half-ar**d info dumps, the worse of all worlds.