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Re:Show HN: Give 7B people an instant physical address by yladiz on Wednesday August 10, 2016 @10:20AM (#12261927)
Try remembering and telling someone your home's coordinates. Then try telling them the coordinates of the restaurant up the street.
Re:Show HN: Give 7B people an instant physical address by Programmatic on Wednesday August 10, 2016 @11:05AM (#12262295)
This would seem to suffer from a similar problem, given that we travel on and interact with roads primarily.

Decoupling from that seems like it would be set to fail for human memory, since there would probably be nothing to reinforce the memory over time for your restaurant example.