> And would <11mm precision ever be a reasonable possibility for OSM users? If higher precision was needed for mapping interiors of buildings, how would a syste

> And would <11mm precision ever be a reasonable possibility for OSM users? If higher precision was needed for mapping interiors of buildings, how would a system handle the width of a room that could reasonably be measured to be 10000mm or 10050mm depending on deflection of the building structure on the day? Or a bridge deck that could differ in elevation above ground by 1000mm depending on load and weather? Or the 100th floor of a skyscraper that has a lateral deflection of 1500mm versus the 10th floor of the building that only has a lateral deflection of 100mm? I'm not associated with OSM project in any way, but one solution for micro-mapping would be to position a micro-map relative to 32 bit coordinates. This way size of map would remain smaller and micro map would have needed precision.