Ling'er thought for a moment and gave an explanation that Li Quan could understand:

"Well, the primary empire is upgraded to a medium empire, and four conditions need to be met, I won't talk about the first population, population is the foundation, there is no certain population base, civilization is a joke, unless it is a pure mechanical civilization. ”

"The second civilization level, I just explained to you the average life expectancy of the people, the initial stage of stellar civilization is to completely break the shackles of the home planet, so that civilization can survive in space with difficulty. ”

"In terms of transportation, space shuttles and spaceships are a must, otherwise interstellar immigration and interstellar industry are a joke;

In terms of energy, controllable nuclear fusion, the initial use of stellar energy, your current solar energy conversion technology is the initial use of stellar energy, but in the future, you need to directly deploy energy harvesting and conversion devices in space, which is a little inefficient in the planet;

In terms of communication, it is necessary to be able to communicate without delay between space and the parent planet, between space and space, and between planets, such as quantum communication technology;

In terms of life expectancy, the average life expectancy of the people breaks the limit of human beings, that is, the average life expectancy is more than 150 years old, and this one-star first-order gene medicine can do it, which is not difficult for you, after all, you have already taken a three-star one, and there will be second-order gene drugs in the future.

If these four conditions are met, then the civilization level will be promoted to the early stage of stellar civilization. ”

"Comprehensive national strength, the previous upgrade has also been made, I won't go into details, it's still the same, there is one more concept of a subordinate country, but you have come up with a suzerainty system in advance, the blind cat meets a dead mouse, and this condition has basically been completed, and the comprehensive national strength of the subordinate countries means that the comprehensive national strength of at least one hundred countries exceeds 200 billion. ”

Li Quan nodded silently after listening, these four conditions seem to be a bit difficult, but in fact, after careful analysis, it is not so difficult to achieve, because the four conditions are carried out at the same time and can promote each other.

Population growth, the comprehensive national strength will be enhanced, the comprehensive national strength of the subordinate countries can also promote the growth of the comprehensive national strength of the New Tang Empire, the civilization level can be exchanged for relevant technologies from the system mall, and other technologies can be exchanged, the overall scientific and technological level of the New Tang Empire will be raised again, and the comprehensive national strength has been enhanced.

Maybe the next upgrade will be faster, it won't take seven years, this is Li Quan's confidence, of course, this refers to upgrading to the medium empire, not the upgrade system, as for when the system will be upgraded next time, it can be said that there is no time to go.

After reading his own and the attributes of the New Tang Empire, Li Quan couldn't wait to take a look at the system mall, the mall has only changed slightly, that is, the interface is divided into two first-order pages, the first is the first-order mall, and now in addition to the finished product, all the technologies have been turned into free as a reward, and he can package and receive it at any time.

Li Quan planned to package these technologies and hand them over to the research institute, after all, they had exchanged key technologies for the scientists of the research institute before, so that they could combine the existing technology of Aqua Blue Star, plus their own ingenuity to complete their goals.

Even these scientists have come up with a lot of innovative technologies on this basis, which is the embodiment of human wisdom.

However, due to various restrictions, there will always be some branch technology trees that are incomplete, after all, the population of the New Tang Empire is small, and the development is too fast, and it cannot be covered by the whole industry, which is also a very normal thing.

Once the research institute obtains all these technologies, then the entire scientific and technological system of the New Tang Empire can be fully established in a very short period of time, and it is not impossible to achieve full industrial coverage, but the most important thing is to digest and absorb these technologies and then achieve localized application.

The second first-level page is the second-level permission that Li Quan is most looking forward to, and the types of goods in it are still rich and diverse, there is nothing you can't buy, only what you can't think of, the system is really powerful.

It's just that the highest-priced commodity is a bit unexpected by Li Quan, and he thought that it was still gene medicine technology, a complete set of second-order all-round gene medicine technology, but unfortunately it was not.

It is to develop a full set of drugs in the brain domain, and it is reasonable to think about it, after all, the brain is the most complex place in the human body, worth 20 billion prestige points.

It was nothing, but what Li Quan couldn't accept the most was that this set of technology could only develop up to 30% of the human brain.

Hell, you still dare to ask for 20 billion prestige points like this.

"Ling'er, you come out, see if I don't say kill you. "Li Quan is messy.

"Host, don't be dissatisfied, 30% is an important critical point, break through, that is the realm of God, the brain magnetic field can already manipulate foreign objects, so it still makes sense to be stuck here. ”

"However, you should know that the finished products in the mall sometimes have higher-tech products, such as this potion that develops the brain domain, and there are up to 31% potions in the product, so, you know. Ling'er explained.

"Whew, okay, forgive you for now. "Li Quan is also a strong mouth.

It's not something he can control at all, it's just a little unpleasant.

looked at his prestige value, and sure enough, he was still poor, and he had just received 15 billion prestige points, even if he counted his entire net worth, he didn't seem to be able to afford it.

The highest value of the first-level mall is only 500 million prestige, and the highest second-level has reached 20 billion prestige, which is terrifying. You must know that reputation is not so easy to obtain, this is limited by the number of people in the Water Blue Star, and Li Quan has no good way.

Fortunately, as long as the full set of second-order all-round gene elixir technology is 18 billion reputation points, he can still afford it, but good steel has to be used on the blade, and he doesn't need this second-order gene potion technology at all for the time being, because the first-order one has not yet begun to be popularized.

If it is only used by him and his family, he can buy the finished product directly from the system, how cheap it is, and it is more cost-effective.

And he also found a vulnerability that I don't know if it's a vulnerability, that is, after the system is upgraded, one of the rewards is to give away a full set of technologies for the first-level mall, does that mean that when you upgrade again, the system will also give away a full set of technologies for the second-level mall.

Choking and Strange Novels|w~w~w.

In this way, you can save a lot of reputation points.

It's just that now he doesn't know what the upgrade conditions will be when the system is upgraded again, and whether this loophole will be filled, he can't ask Ling'er.

If this was originally a loophole, what should Ling'er do if he asked.

So now we can only wait, waiting for the time when we upgrade the New Tang Empire to a high-level empire, and the conditions for system upgrade will appear, and we will know what to do when the time comes.

"Huh, how can some products be marked as energy value purchases, is it the energy value in my attributes?" Li Quan then looked down at the goods and found a place that was different from before, and was very curious.

He thought of what Ling'er said before that he knew this sentence when he saw the mall, and now he probably understands it a little.

"Yes, in the second-order mall, reputation is used to buy technology, and energy is used to buy finished products, which is beneficial to the host, otherwise the host simply does not have that much reputation value, as I said, the system is for the host. The system explained.

"So what exactly is this energy value, and how should I get it?" Li Quan said with concern.

This will be the same as prestige in the future, a kind of money, can he not care?

"Hehe, it's not as complicated as you think, in fact, this energy value is a quantitative value of energy, it can be electricity, or more advanced energy, one hundred degrees of electric energy is about equivalent to a little energy value, there is an energy harvester in the mall, you can collect energy through it. ”

"In fact, energy is a universal currency in the universe, because no matter what level of cosmic civilization needs to use energy, the difference is just the level of energy used, as for what level of energy is used by other advanced civilizations, don't ask me, your authority is not enough, I won't answer if you ask." The system said arrogantly.

"I don't need you to remind me that I don't care about that. Li Quan said stiffly.

He took a general look at some of the most expensive technologies, why look at the most expensive, because expensive means good, at least here in the system mall.

The brain domain has developed a full set of technologies for pharmaceuticals, worth 20 billion prestige points;

The complete set of second-order all-round gene medicine technology, worth 18 billion prestige points;

Stellar Energy develops a full set of technologies, worth 16 billion prestige points;

A full set of stellar military Starfleet technology, 14 billion prestige points;

()