According to the information he was given, all five of them are in increasing order of difficulty. That means acquiring level 12 energy density is the easiest while creating an energy nexus in his head.
He can understand why this is the case. After all, he has already met the requirement of level 12 energy density even without trying.
As he thought of this, he curled his lips and said, "As easy as they said it is, more than 90% of rank 3 cultivators won't be able to achieve it, though."
From what he knows, more than 90% of the 10,000 rank 3 cultivators in the city won't reach the peak of rank 3 before they die, and about 50% of the 10,000 rank 3 cultivators will never advance beyond the early stage of rank 3.
This means that only 1,000 of all the rank 3 in the city will have any chance of advancing to rank 4. But when he considered that there were fewer than 100 rank 4 cultivators in the city, he got a fuller understanding of how difficult it is to advance to rank 4.
