Lookin at galaxy map, with right filters, shows various of branches going on few diffrent directions, and most of previously empty systems within bubble, are all colonized.
Its actually more and more harder to find unpopulated system within bubble.
It all happens quite faster than imaged it will be, with 15ly range, but it also makes sense.
Not only more systems are created, but it ensures that supply hub/systems is never as far to deliver to yet next new system and so on, so its selfsustainable, as hubs will be created along the ways, wich are under development.
Give it year or two, there will be considerable distance obtained, in current pace.
But end result, will be quite something, such as for example, reaching beagle point by colonization. It might take couple of years.
