"Extra Cost?"
"Yes, Extra Cost..." Wang Chuan said calmly. "I told you before that the backpack is where shared costs are stored. Everything you see is Extra Cost—people and everything else. No matter what form they take, they are all stored costs, piled up here because they have not yet been used."
"Then why are they all incomplete?" Mo Ling asked curiously.
"Because part of each of them has already been used, and the remaining parts are unnecessary."
"What do you mean?" Mo Ling did not quite understand.
Wang Chuan thought for a moment before explaining again, "Let me give you an example. Suppose the cost of one Relic is twenty grams of fresh soil, while another Relic can create a soil wall, which can be used to pay the first Relic's cost. How would you pay it?"
"Obviously, I'd create a soil wall first, then scrape twenty grams off it as the cost for the first Relic."
"The same applies to human bodies. Many Relics only require a part of a person's body as their cost. You only need to create a complete 'person,' then remove part of that 'person' to use as the cost. The excess parts remain here and become redundancy."
Listening to Wang Chuan's explanation, Mo Ling finally understood, though he still had one question. "Why create a complete 'person'? If a hand is needed as the cost, just create a hand. If a leg is needed, create a leg. Why create so much redundancy?"
He told Wang Chuan his question, and Wang Chuan immediately answered:
"Because there are very few Relics that can create 'twenty grams of soil,' while there are many that can create Soil Walls."
"Likewise, there are very few Relics that can create a 'hand,' while there are many that can create