zero nomads

• The only known nomadic group known for using the Null Drives. 
• They claim that they follow the 'Zero Vector' - when the Primary Vectors were established, one of them wasn't feasible in any way - it was impossible to follow it. It was marked as an error.
• ZN claim that they are able to follow the Zero Vector through Nullspace.
• Unlike other nomadic groups or pilgrims, they travel on a single vessel - the Worldship. Measuring over two kilometers in length, it's the largest spaceship ever buillt, by significant margin. Built in one of the Base Worlds (near 0,0,0) by one of the Old Corporations, it's said that it's over one thousand years old.
• ZN claim that they figured the Null Drive themselves, and haven't used any knowledge found on the Ykthr Tablets. 
• It's impossible that they aren't affected by the NullVoid.