I know I've said this at home but WOOT! Cupinook!
If you're browsing the group forum, but don't really know much about the BackGround Simulation, this news is BIG.
The key things are:
1) High population system.
2) Targeted Expansion.
Yes, Virginia - you CAN choose where your expansion goes!
Even into a 2 billion population system!
How was it done?
It's like gardening.
It takes MONTHS.
It's like when you're having tea in someone's front garden, and you look up at the tree you are sitting under and see that it's growing red apples and green apples. Planting, nurturing, weeding, fertilising, the grafting, pruning, all the care and work.
Dedication and coordination and patience.
But it CAN be done.