Even though it’s said there will be no server there are only 2 ways to access the world once it’s complete.
1: receive the chunks from a server so your computer doesn’t melt into a new elephant`s foot.
2download little bits of the map file, for example, a region of a country to make it go down from 14. 000 GB to “just” 70 GB for example.
It’s complicated now, average computers are closing to the specifications, but the project is maybe born prematurely.