Tl;dr DNS (human readble names) for physical locations on earths surface.

It's a nice idea "I will meet you at chair.lion.knowledge" is better than meet you at grid location 123.456.5676

But to be honest I know roughly where in London SW1 2EE is and the amount of times I will need that level of accuracy for an address in Mumbai or LA is quite limited. In addition "chair.lion.zebra" is actually less readable to billions of non Latin script natives around the world than numerical addresses.

Ah well - it's a nice idea.