Drifting in the Star Sea for ten thousand years, even without any civilization disruptions, the cultivation theory of the Mystic Immortal Boat had not made any progress whatsoever.
All realms that he saw were utterly destroyed, with only various destructive remnants of True Immortal Seal Characters echoing through the Star Sea. As the saying goes, "rely on the mountain to eat, rely on the water to drink," the Mystic Immortal Boat thus placed its future entirely in the study of this mighty force. As for other aspects...
Compared to the Xuanhuang World that had been through countless tribulations, it was far weaker.
At the very least, despite the extreme environment where incompatible cultivation was the norm, the myriad mystiques born out of the Xuanhuang World were seen as utterly astonishing to the cultivators of the Mystic Immortal Boat.