Under the Spirit of the Academy City's detailed explanation, Angel roughly understood what it meant by "energy self-circulation."
Simply put, the entire Fool's Academy City was under the control of the Academy City System.
It was akin to the "world consciousness" of Fool's Academy City, governing every aspect of the Academy City.
Whether it was changes in the weather, the succession of grass shoots upon the ground, the construction of urban buildings, the generation of streetlights and buses, or the Academy City's Auxiliary Hand... all of these were regulated by the Academy City System.
And any form of regulation consumed the Academy City System's energy.
Therefore, the Academy City System inevitably needed an energy logic capable of achieving self-circulation.
In fact, such self-circulation did exist within the Academy City System.
According to the Spirit of the Academy City, once the number of people in the Academy City kept growing and reached a certain scale, the Academy City System could achieve energy self-circulation.
This could be understood as meaning that the Academy City System's energy came from the "residents" living here.
But Angel still did not quite understand exactly where that energy came from, and the Spirit of the Academy City did not know either... all of this information had simply surfaced in its mind after it awakened.
The only thing it knew was that the energy drawn by the Academy City System would not affect the residents living here.
"It doesn't affect the human body at all, yet only more people can allow the energy to achieve self-circulation?" Angel guessed that perhaps the energy supplying the Academy City System came from the bioenergy of living beings themselves?
Or perhaps it was some kind of behavioral potential energy generated when residents moved about, studied, and lived within the Academy City?
Though