The Era Cataclysm descends, a trend that is inevitable due to the general momentum.
Even now, as Gu Chen engages deeply with creation, it still holds true; preventing the descent of the Yin world is impossible.
After all, if one were to delve deeply, they are both part of the same vast universe, only distinguished by the aspects of Yin and Yang.
Yin and Yang together is a law of the universe's operation; as strong as Gu Chen is, he is equal with the Dao and cannot act against the universe or, in other words, Heaven's will.
Moreover, even if he could, he would not be able to take action.
Otherwise, by going against the laws of the universe, and disturbing the Dao of Heaven, no one knows what could happen.
But at the very least, the extinction of all beings is highly possible, and even the entire universe might self-destruct.
Gu Chen cannot gamble nor is he able to.
Otherwise, if such a situation arrives, how would it differ from the Era Cataclysm?