Chen Xin didn't find it strange that his survival point had exceeded six digits, and even felt that it seemed a little bit small.

The benefits of cooperation with the country are here. Because Chen Xin can also obtain a survival point by indirectly helping others, so by improving the living conditions of other people on a large scale, it can naturally bring him a large number of survival points.

In fact, if the production of isotope batteries had not been increased, Chen Xin would have obtained more survival points.

So this is also the reason why Chen Xin is less and less concerned about the increase in his survival points, because there is really no need to pay much attention. As long as he confirms that he will not spend all of it at once, he will have a large amount of survival points recorded in a few days.

With a large number of survival points, Chen Xin has enough confidence and strength to do whatever he wants, so he no longer has to worry about the survival points.

If Chen Xin had not chosen to cooperate with the country at the beginning and just saved up his survival points slowly, he might not have been able to grow more every day even if he saved up for a year.

After all, the base of survival points a country can provide is too large. Even if there is a limit on obtaining a single transaction, as long as the quantity increases, the total amount will naturally increase.

As for only private shelters, no matter how they develop, they cannot compare with a country in terms of development speed.

Chen Xin once thought carefully that perhaps this is the real usage of the doomsday survival system he has obtained.

After all, before disasters and doomsday, personal heroism has no meaning. Only when everyone unites and gathers the strength of everyone together can we do more things and let more people survive, rather than just a few people who can survive, even the continuation of civilization and population.

Chen Xin didn't want to be the hero who stood out, nor did he think he could lead others. It was actually good for him to be an auxiliary to output black technology like now.

Just like when he was playing RPG games, Chen Xin preferred to act as an auxiliary and healing role in the team rather than an output or a tank role, and did not have the idea of ​​being a team commander, although his command ability is actually not bad.

Although Chen Xin does not want to become a leader now, when a large group of people surround him, he naturally put him on the position of leader, which also made him think about how to go next.

According to Chen Xin's vision, he planned to build the location where his home was an ecological dome.

This is not a whim or a system that can be done whatever you want, but something that can be achieved based on real technology.

When many people hear about the ecological dome, the first thing they think of is the protective shield that covers the entire city in science fiction novels, and think this is a very dark technology technology.

But in fact, the ecological dome has been mentioned before that humans have built similar existences a long time ago.

The famous Biosphere 2 experiment is actually an ecological dome, but it is not built into a spherical dome, but a square step-shaped pyramid structure.

The entire project was built in the 1980s. At that time, technology was not as developed as it is now, so it was impossible for its structure to really build a large spherical dome.

Moreover, due to the various technical problems that existed at that time, the Biosphere 2 experiment ultimately failed, unable to realize internal circulation and do not rely on external matter.

However, with the development of science and technology, the large-span spatial structure technology has become increasingly mature, and the internal space of the related buildings built is becoming more and more extensive. It is not a problem to build a small ecological dome.

As for the ecological cycle inside the ecological dome, if we really want to build an ecosystem completely isolated from the outside world, it is of course impossible to overcome the situation when Chen Xin does not use the system to upgrade.

But if you just build an environment similar to a plant greenhouse, it's simply not too simple.

After all, the most important air and water can be input from the outside world. It is actually not difficult to maintain the operation of the entire ecological dome under such a premise.

According to Chen Xin's design, the plan is to build a large dome with a span of about 500 meters on the ground, covering the area in front of the mountain where his refuge is located.

Then increase the temperature of this area and build scientific research buildings and military camps in this area.

Although the construction of a large dome with a span of about 500 meters is very difficult, it is not impossible to complete with Yan Country's infrastructure capabilities. After all, there is not a lack of space spans inside large airports, stations and gymnasiums that exceed such a large size.

In addition, Chen Xin did not intend to build a hemisphere and buckle it on the ground, but only planned to make a flat arc dome. The construction technology is not as difficult as imagined. Even if there is no support column inside, it can be built.

When a relatively closed environment is available, as long as the building materials are sufficiently insulated and there are sufficient heating facilities inside, it is easy to create a warm enough greenhouse environment.

As for scientific research bases and military camps, all the buildings can be completed when building the dome.

With the appropriate temperature in a greenhouse environment and the stable supply of fresh water, planting plants and building a small ecological system is not difficult.

In this way, even if a small ecological dome has all the elements, as for how to make the ecosystem self-circulate, there are too many things to involve, and it is not something Chen Xin can do.

Fortunately, he has a system, and any problems will be solved as soon as the broadcast is upgraded.

Even if the system is not upgraded, it is still possible to let the country send two biologists to assist and build an ecological system that can be stable and circulated.

For Chen Xin, of course, he would not put a weapon like system upgrade without using it, nor would he say that he was working hard alone.

At that time, let the state-owned biologists build an ecological system first, and then upgrade and optimize it by themselves. This two-pronged approach will create a comfortable ecological dome and reproduce the past scene under ice, snow and darkness. What a pleasant thing it would be!

Of course, such an ecological dome is not for enjoyment. Although living in such a warm and comfortable ecological dome in the current environment is itself a kind of enjoyment, the establishment of an ecological dome also has important scientific research significance.

Large-span spatial structures can not only be used to build ecological domes, but also to large planting greenhouses. Small ecological cycles can not only create a comfortable green ecological environment, but also help to study circular ecological agriculture.

The technology of building an ecological dome is used to build a greenhouse, which can be said to be a good use of everything.
Chapter completed!