How ironic. Just when humanity had at last attained power equal to the gods, it was more than they could handle. In order to control such power, humans were demoted to the level of monkeys, and then from monkeys to mere mammals.
“A ethologist called Konrad Lorenz who lived during the peak of the previous civilization said that powerful animals like wolves and ravens, as well as social animals, have an innate mechanism that causes them to avoid conflict with members of their own species. This is called attack control. On the other hand, physically weaker animals like humans and rats do not have as much control and tend to fight amongst each other, to the point of violent massacre. So if PK users are to live together in society, a powerful restraint on violence is essential.”
“But how did they do it?” Shun whispered as if talking to himself.
“The only effective way was to alter the human genome. Wolf DNA was decoded and the gene responsible for attack control was isolated. But just that is not enough. Something that could suspend their ability to attack is also necessary.”
“So in other words, you’re saying that human’s attack control abilities didn’t come from wolves, but from some other incredibly powerful thing?”
“There is no concrete data as to whether humans were able to manipulate genes to that extent, so there is only conjecture. However, two mechanisms were inserted into the genetic code. The first was regular attack control identical to the wolves’. And the second was something called ‘death feedback’.”
A shock ran through me. Death feedback was something that we had heard again and again since Harmony School, and was deeply engraved in our consciousness. It was the most shameful, horrible way for a person to die.
“In the beginning, they came up with ‘conscience feedback’, which would disrupt a person’s concentration when they wanted to attack someone with PK, to complement the attack control mechanism. But the results were inconsistent, so they were unable to use it in the real world. Its replacement was the simple yet effective ‘death feedback’. ‘Death feedback’ operated on the following principles. When the mind recognizes that the user is attempting to harm another human, their PK subconsciously activates and stops the functions of the kidney or parathyroid. This results in symptoms such as discomfort, heart palpitations, and sweating, which can be intensified through education, conditioning, and hypnosis. At this stage, most people would stop attacking, but if they continued, tetanic asphyxia caused by low blood calcium, or cardiac arrest caused by a rapid spike in potassium concentration would kill them.”
“That’s…impossible,” Satoru choked out.
If all that were true, what exactly have we been believing in all these years? That we, humans, had been granted the power of gods because of our virtues was what we had always been taught. But in reality, without the threat of death holding us back, we would fight until mankind was destroyed. Didn’t that mean we were even baser animals than wolves and ravens?
“That’s a lie! It’s all bullshit,” Maria said through gritted teeth.
“But it makes sense,” Shun said in a low voice.
“So you believe it?”
Instead of answering me, Shun asked the false minoshiro, “…did fiends appear after that?”