Lao Yang explained on stage: "yes, as you have guessed, the virus samples created by the five level civilization are a trading chip proposed by them. The other side is so committed, it should not be fabricated, but actually have this thing in their hands. "

The green star civilization has disappeared, but the scientific and technological heritage of the five level civilization remains in the world, and everyone can't help but raise their attention.

Through a virus, we may be able to crack more mysteries about life.

Lao Yang went on to say, " This kind of virus can't be said to be completely undifferentiated infection, but many animals on Karina have been recruited. The genetic material of organisms on the same planet is similar to a large extent. Aren't human genes similar to Paramecium? In the same way, most of the creatures in the hemisphere are infected... "

"But this virus may not be able to infect humans, because the species of two different planets are very different."

“…… If the two sides cooperate in an all-round way, hemispheric civilization can provide virus samples in this area for joint research. "

Biological samples created by the five civilizations. Several experts specializing in biology showed their interest.

The gene virus from the fifth level civilization is a killer of the hemispheric civilization. However, the other side did not hide it. Instead, it said it directly and transparently, indicating that it had no intention to use it against human beings.

This has won everyone's favor.

Of course, even if hemispheric people secretly use this virus on humans, humans may not be caught. Because under careful preparation, the other side did not get the human gene code. And people are well prepared for defensive measures in this area.

One of the experts said: "viruses are very dangerous, but they do have research value. As long as the safety control is proper, there should be no problem. We are already a four level civilization. We can study the science and technology left over from the five level civilization, further improve biotechnology, and improve the prevention and control ability in this area. "

Zhang Yuan frowned and said, "don't take it lightly I'm thinking, how did people in the hemisphere get infected? In the face of an unknown virus, are you so careless? "

"They all know that the life in the first era was killed by the virus, how can this virus be released?"

A deputy captain shook his head: "Lao Zhang, what's the story of that time? Equivalent to our end of the 20th century, the beginning of the 21st century! At that time, more and more explorers died. The original hemispheric civilization was in a period of archaeology frenzy. When we met scientific relics, how could we manage so many? "

"Their science and technology are not well developed. Can they still go to the north and south poles in their fully armed spacesuits? If you want to open it, you can open it. Moreover, I seriously suspect that those people in the hemisphere were infected with the mutated virus when they dug up the glacier. "

"All right." Zhang Yuan accepted this statement.

"And then, what about the next history?"

"Next, after the resurrection of the alien virus, a terrible plague was born naturally!" When Lao Yang saw that all the people under the stage listened carefully, he could not help feeling a sense of achievement as a teacher.

He went on to say: -- The original perfect virus is very mild and highly infectious, but it has no obvious symptoms. It will only destroy the reproductive cells of life and make life unable to reproduce. "

"But now it begins to mutate at a terrifying speed, infecting all kinds of creatures, and a large number of creatures are unable to reproduce! And this kind of variation is more and more extensive, appeared all sorts of complications, animals and plants began to die in large quantities

"These complications have successfully attracted the attention of hemispheric civilization."

It dawned on them that those damned viruses, which had killed many people, were resurrected!

And they are also infected with hemisphere people!

Hemispheric civilization once wanted to control the spread of the virus, but the vast majority of organisms will be infected with this virus, but some symptoms are obvious, some symptoms are not obvious, these animals flee everywhere, birds fly everywhere, where all become epidemic areas, oceans, land, lakes all appear plague, how to control?

As a result, hemispheric civilization, like multi sphere civilization, has fallen into a desperate situation

This is the first time that their whole civilization has encountered a great crisis!

Lao Yang did not play the key role, but directly said the final solution: "the world entered the doomsday mode, the social order collapsed immediately, the population withered rapidly, only some scientists are still working hard."

Scientists of hemispheric civilization found in their research that their nervous system, I don't know what happened, was not infected by the virus. These viruses can't enter into nerve cells and assemble with free nucleotides, which may be related to the membrane structure of nerve cells.

"So at the end of their tether, in order to survive, they turned themselves into this kind of brain in a vat bionic model It's weird, but it's alive. And with the help of the research results of the first era, multi sphere civilization. ""So it is! I see! " Zhang Yuan sighed for a long time. Normal civilization will not make itself like this. But in a desperate situation, there is no way to survive. Who can make science and technology fail and solve this problem?

The problem of survival has been solved for the time being, and then it's about the reproduction of species. There's no way to reproduce just by having a brain.

The average life span of people in the hemisphere is about 120 years old. Although this brain in a vat model has somehow increased their life span, if there is no next generation, they will die out sooner or later.

There are some uninfected germ cells in the biological gene pool, which are well preserved. But normal life, in this environment full of viruses, will soon be reinfected, so it will eventually become a "brain in a VAT" to survive

If we run out of germ cells in the gene pool, the hemispheric civilization will go extinct.

"So, in order to reduce the trouble, hemispheric people have developed a special cloning technique, which is like 3D organ printing, and can directly" print "the brain of the newborn! In other words, the new born baby has no other organs except the brain, so it has to use bionic organs to survive... "

"You think, since the heart, liver, kidney and other organs can be cloned with organs So, the brain, in theory, is OK

Hearing this, a scientist asked, "do people in the hemisphere have such technology? This technology is still very difficult, isn't it? "

Lao Yang said with a bitter smile: "their biotechnology just barely passed. The main reason is that the multi sphere civilization of the first era has been studying this kind of technology crazily, but the multi sphere civilization has not completely solved it, so it is directly extinct. It was not until the second century that hemispheric civilization perfected these technologies that they could barely be used. "

"The culture of clapping as soon as they are happy is probably left behind by the bad technology at that time."

Another asked, "wait a minute, I have a question. Why don't they create an artificial sterile zone to cultivate normal infants? "

Yang Fan shook his head: "your idea is very good, but it's not realistic to really implement it. At that time, the hemispheric talent was barely 0.9 level civilization, and the productivity was not like what we are now. "

"It will take millions or even tens of millions of people to raise the children of the next generation. These children have to eat, wear and have a lot of material needs."

"When the outside world is full of viruses, how large aseptic area do they need to build to meet such a big demand The social system has collapsed. It can't be like before any more. "