when you get arch you have 2 16m voxel worlds, and 2 8m voxel worlds. But what happens if you reopen a 16m voxel realm in an 8m voxel slot? Nothing, you can play on that map as if you had 4 16m voxel maps. I decided to say something considering this might cause the server to crash if all archs found out. I hope this helped...