This made me think of Google's S2. 64-bit ID for every less-than-1cm^2 roughly-square area on Earth's surface, less bits used for bigger areas.
https://s2geometry.io/
https://docs.google.com/presentation/d/1Hl4KapfAENAOf4gv-pSn...
In the case of Minecraft and similar games, just targeting the surface isn‘t enough.
In the case of Minecraft and similar games, just targeting the surface isn‘t enough.