Proster nodded. “So we build ships and arms now—” “While it’s still cheap and easy, because as more Flow streams collapse, it will be more expensive to get materiel, and harder to source as well,” Deran interjected. “—and take as much as we can get up front, and then as the Flow streams collapse, move our base of operations to End, where the money will still have value and the remainder of civilization will still need arms and spaceships.”