Before this, the spiritual source had always been Zhang Qifan's main source of energy, and it was also his biggest reliance. When his civilization level was still at the second level, using this kind of energy that had only begun to be popularized by the sixth-level civilization was like opening a super big plug-in for him.

The effect is more powerful than the use of internal combustion engines in the Stone Age and nuclear fusion in Malaysia in the 20th century. It is also because Lingyuan has relieved him of his worries about energy that the civilization under his command can develop so quickly.

If there was no spiritual source, it would be absolutely impossible for him to send his soul strength to two million points, and it would not take eight thousand years.

As the spiritual source that is the biggest driving force for the development of Zhang Qifan's forces, it is insufficient? That's a big existential question.

Some people say that if you don't have a spiritual source, you can use energy blocks, how can it endanger life and death?

Just as in ancient times, there was no air conditioning, and you could enjoy the cool under the tree. Now, if there is no air conditioning, 99% of humanity can be heated.

The life support system of tens of billions of creatures is provided by spiritual sources, and it cannot be supplied with energy blocks or even antimatter, and if there is a problem with the life support system, these tens of billions of creatures will all die.

"It's not enough." Dong An flew over and said: "In order to avoid sitting on the mountain, we have planned to cultivate the spiritual source since we started in the hidden place, but the production speed has not been able to increase, and between the expenditure and income of the spiritual source we have in reserve, it is in a state of loss, although there will be no problem in a short time, but this state is too dangerous, so we began to plan to reduce some unnecessary losses." ”

Dong An's tone was a little embarrassed and resentful, this is her son in front of her, what is the matter with herself making a report? But she couldn't deal with it with her previous mentality.

The more you learn. will know what the status of Zhang Qifan is now. The greatest monarch in the history of mankind ruled over only tens of millions of square kilometers. Even the current president of the Human Federation rules over a mere 2,000 light-year range.

But now Zhang Qifan. But he is the overlord of the entire galaxy, an existence of the same level as the Star Crystal Queen and the King of Titans, and his random thought can turn hundreds of galaxies into nothingness, and a single command can affect the fate of tens of billions of living beings.

Such a powerful existence, whether it is Zhang Yuanshan or Dong An, can no longer treat him with the same mentality as before. If you're still human, it's okay to say. But since he also changed his life form, Dong An understands that blood is no longer the factor that maintains their relationship.

And the reserves of Lingyuan are now also managed by Dong An, in order to prevent the decline of inventory, before the production is increased, the expenditure of Lingyuan will be greatly reduced, like the previous dispensable consumption, now it has basically been canceled, and even the cultivation of super life has been temporarily stopped.

Zhang Qifan didn't pay attention to Dong An's embarrassment. Instead, he asked, "How is the production of the Spirit Source?" ”

How did the spiritual source come about? Extracted from the soil. How did the polygon come about? Infused by the breath of death. The method of producing the spirit source is very simple, just increase the concentration of death breath in an enclosed space, and then throw the earth into it.

Most of these spiritual sources in Zhang Qifan's hands were scraped in the Water Source Galaxy and the Death Star. A small amount is produced in the Hidden Lands, but the history of the Hidden Lands is very short after all, and the production is insignificant.

Now there is a large and stable rear. The survival of the spiritual source can be greatly improved.

It was Rose who answered Zhang Qifan: "We have now opened a breeding ground in one of the small peaks, and all the soil is piled up there. It also stipulates that after the death of all organisms, they need to be buried in a centralized breeding ground. However, in the past few years, our life science and technology have improved relatively rapidly, and the biological mortality rate has been greatly reduced, so the pollution progress of the cultivation farm is not fast, and there is no way to produce qualified spiritual sources in a short period of time. ”

The breath of death is released by dead creatures, and the hundreds of billions of creatures under Zhang Qifan's command actually have a lot of normal deaths every day. But these years have been a period of great explosion of civilization, and life science and technology are changing at a dizzying speed.

Last week, the average life expectancy was probably 250 years, but this week it has risen to 251. During such a big explosion, the potential for lifespan has not been fully exploited, so the number of natural deaths has plummeted to only one percent.

In a few hundred years, it is estimated that there will be no way to fill the position of the breeding ground.

It's not that no one proposed, slaughtering a group of human slaves or low-educated creatures in batches, but they were sternly vetoed by the group of people who followed him at the earliest, whether it was Antonio, Schneider, or Huang Chunjiang, they all still maintained a simple view of species and couldn't do such cruel things.

However, their concepts are incomprehensible to many people, including the later group of human slaves.

Killing chickens and dogs is so happy, and skinning and bones are stewed into broth, and now it feels cruel to kill some human slaves and low-educated creatures? If human slaves are of the same species and have intelligence, then human beings are just as cruel to orangutans, are orangutans not primates and therefore unintelligent?

Although they couldn't understand it, Antonio and the others insisted on their opinions, and the proposal was ultimately rejected.

Some people have also proposed to replace it with cloned creatures, but the breath of death has a lot to do with the level of intelligence, the length of life, and the strength of will.

After listening to Rose's words, Zhang Qifan looked at her with some astonishment: "You won't always use the corpses of normal deaths to decontaminate, right?" ”

Zhang Qifan's words made most human beings reincarnate with a sigh in their hearts, if you don't use a corpse that died normally, should you use an 'abnormal' death? Zhang Qifan should not support the slaughter of a group of human slaves, right?

Rose was stunned for a moment, but didn't think too much before responding: "Yes."

She thinks that Zhang Qifan also supports the slaughter of living beings to accelerate pollution, she doesn't have much of her own opinion on this, as a congenital undead creature, her concept of death is not much different from plastic surgery, and she will not have meaningless sympathy for the life race, so whether she slaughters or not, she has no opinion.

However, her response made Zhang Qifan shake her head in disappointment, which made her heart tight, she could not care about the life or death of the life race, but she couldn't care less about Zhang Qifan's opinion of her, could she have done something wrong?

Dealing with this subordinate who had been following him since the Death Star, Zhang Qifan couldn't be too harsh, and asked heuristically: "What species do we have the largest number of here?" ”

"Humans." Rose didn't think twice about it. There are tens of billions of human beings who moved from the Panlong Star Domain alone, and with the human slaves sent over by Yunxing No. 1 later, the number of human beings is close to 100 billion.

It's not just Rose who thinks so, but everyone else thinks so too.

Zhang Qifan shook his head: "Call all the undead creatures and follow me." (To be continued......)

PS: Headache ......