so how will new things be added justified by use, once all the existing pre-digital glyphs have been added? I see two possible scenarios: 1. They won't be. In

so how will new things be added justified by use, once all the existing pre-digital glyphs have been added? I see two possible scenarios: 1. They won't be. Instead, existing glyphs will become increasingly overloaded with new meanings. 2. New glyphs will start their life as icons. Once a certain icon becomes wide spread, it may be made into a code point with a glyph. In practice, it would probably be some combination of the two.