Yes, as I clearly stated in my original post, the post office holds the mapping of "address numbers" to actual "addresses". (The same way that even addresses can be considered mappings to GPS locations). The key difference is that you now only have to update your address in one place (this official mapping). This is not how change of address forms work today. The post office will only forward your mail for one year, which means I still have to inform every single person that has my address that my address has changed, which is really silly in my opinion (like having to give everyone a new email address every time I purchased a new computer). The system I'm proposing is exactly equivalent to phone numbers, in that you don't care about calling a location, you care about calling a person.