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having read the article, I don't get the utility or practicality of the concept.
I don't think the US would use this as we already name every street and number every house, etc. In Mongolia's case they apparently don't use street names, house numbers, etc. They could go around and name every street and number every building, etc, but that would take a lot of time and money. It's easier, quicker, and cheaper for them to use a system that's already in place, even if it's kind of strange. I don't know how that would help them track down nomads, but I doubt they send or receive much mail, anyway.