Hello!

[Rynn]

For all wormholes, passing matter or energy through them will calls the 'entrance' mouth to gain mass and grow larger, while the 'exit' mouth loses mass and shrinks (this due to conservation laws). With proper scheduling of two-way traffic you can balance this process so both WH mouths stay approximately the same size and mass (you can also add/remove mass-energy to/from a WH directly using specialized machinery)

I'm a bit confused by this, I didn't realise this was the case for all our wormholes. If the net transport of mass has to be zero then how can we have wormholes in systems designed to export huge amounts of resources, like Himmelsschmiede? And for megastructures requiring multiple solar masses does an Archai have to use grazer's exclusively?