Twenty light years is a distance that's neither short nor long. In the future, there might be other interstellar civilizations seeking refuge here.
It's possible that those fleeing are not just one civilization, but a failed alliance!
An unsuccessful medium-sized alliance is not something the New Human Civilization can contend with.
During the conference, Captain Feng raised this issue, "…as the saying goes, a prudent man does not make his home under an unstable wall. To avoid unnecessary disputes, we must prioritize moving away from the Dyson Sphere as soon as possible. The various projects of the Mountain and Sea Battle Star can be developed while we escape."
Zhang Yuan nodded slightly below, finding the issue very realistic.
But where exactly do people go?
Wandering in the universe without purpose is just a waste of time, it's best to have some clear destinations in mind.