>>52226438Normally, saplings would go gravitate back to their home with other saplings. In the case of the space setting, assuming any amount of their hive was left, that's where they would go, even if it meant trying to cross vast amounts of space to do it.
That's not to say saplings wouldn't ever leave /uuu/ though. Any individual sapling could have any number of reasons to relocate. Anything from relationships, curiosity, banishment, etc. But these would be individual reasons. For a whole group of saplings to leave /uuu/ or their hive would take some very special circumstances indeed.
Perhaps they had strong reason to believe that their hive was completely destroyed. Or maybe something happened to them and they thought their hive wouldn't be safe if they went back. Or possibly they felt a collective great debt to something or someone and saw the need to repay it before going back home.
Those are some of the angles I'd have come at it from.
