Just the usual reading too quickly this a.m. and I got semantic zoning instead of semantic zooming.
On reflection semantic zoning may be more useful concept. Think of sematic zoning like county zoning. You know, urban planning. Perhaps (?) our classification schemes need to be a bit more like a city. Some bits of a city we zone and design for easy, certain, and sure access, like a central core. Some we let ramble a bit like the residential neighborhoods. Some areas we intentionally push toward chaos and surprise like parks and gardens. How we zone and how rigidly we grid an area depends on what people are likely to be doing or seeking in each area. The court house and hospital, should be immediately and distinctly findable. The bench under the willow in the arboretum, not so much.