The population aspect issue is not an unsolvable challenge for Zhou Tian.
First, although the number of living beings in the Abyss World is vast, in the current war, the population of living beings in the Abyss World can't withstand long-term consumption. After all, the opponent now is the Divine Realm, relying on the Divine Realm's foundation, the number of deities attacking is in the billions, and they die wave after wave. Even in that situation, despite the large number of living beings in the Abyss World, when their strength is not even as good as those deities, the number of casualties on the Abyss World side is definitely far greater than that of the Divine Realm.
