Time passed quickly again, 419 years.

Human civilizations spent a lot of money to purchase enough shares of materials from the Temple of Greedy to complete the construction of the "Central Array".

The whole wall is made of thick earth-based materials. The surface is rough and solid, as if it has been baptized by thousands of years of wind and rain, but it remains unmoved - this is the ancient rhythm deliberately created by the masters of glyphs.

The sun shines, and the city walls are filled with a faint golden luster, emitting a calm and heavy atmosphere.

This city wall is built around the inner ring of Green City. It is about 120 kilometers long and has certain protective performance and load-bearing capacity. It can pass through trucks, which lays the foundation for the expansion of Sky City.

Standing under the city wall, you can feel a powerful force from the underground.

At this point, this four-level technology [Pangu Thinking Resonance Technology] has basically been realized.

A total of 329 points of transportation was spent! It was seriously exceeded the budget!

The northern array and the central array can theoretically increase the upper limit of human divine attributes to points 20-25 - this is a considerable value.

Although there are still three large formations that have not been completed yet, we have to consider it after we have collected enough materials.

"This formation is our first step towards level 4 civilization."

"We are in and will be in the primary stage of level three civilization for a long time, and are now moving towards the intermediate stage of level three civilization..."

...

A four-level technology is not enough to promote humanity to become a four-level civilization.

As the backbone of Pangu Continent, the fourth-level civilization should be in all aspects of culture, economy, industry, science and technology.

Therefore, more fourth-level technologies are being studied at the same time...

Lu Yuan often sighed that the old cat was really calm. There was a civilization ruin at the limit of the north, and the level 4 data inside could be obtained easily, but the old cat insisted on human research independently, and even invested a lot of manpower and material resources for it - in this regard, it was generous.

Of course, this is also a good thing. There is indeed a world of difference between what you have developed and what you have picked up.

Independent research, you will encounter many difficulties and setbacks.

It will bring about progress in the entire research system.

It can also cultivate more talents.

Although the progress of picking up garbage is very fast, it is difficult to need a training system.

In the 429th year of the Era, the second level 4 technology showed up - [Supermatter Extreme Aggregation]!

This noun is very strange. After Lu Yuan understood it, he realized that this was actually an idealistic science that increased the level of extraordinary materials!

“Can the grade of the material be increased?”

"Yes, Pangu Continent has developed to the ninth era, and legendary treasures are already very rare."

"Our human civilization has been traveling for so many years, and we have actually dug up several legendary and epic materials without even a trace of them... It can be seen that the rarity of these rare materials."

This professor who leads the [Superma Matter Extreme Aggregation] project, named Lu Guangming, is also a "super thinker".

Lu Yuan sat in the first row.

After thinking about it, the legendary level dug by humans was obtained from the volcanic eruption of the "Source Fire Civilization", and there was no more.

"If legendary materials are rare in a century, then there are almost no epic items, and only a small number of strange phenomena can be produced."

"Immortal-level materials are even more natural disaster-level visions, so they are produced in very small quantities."

Not every natural disaster can produce "immortality". The productivity of [demon] is much stronger than [ghost], the ghost is stronger than [monster], and the [monster] is stronger than [demon].

But there are also differences between [demon] and [demon].

Like the poppy tree, which has been severely damaged by energy, it can only produce some excellent items, and its energy has recovered a little in recent years.

Lu Yuan's Tree of Life can produce legendary wood, and the output is decent.

But the Tree of Life is another 18,000 miles away from the Immortal Level.

It is necessary to survive for several epochs of [demon], which consumes huge amounts of vitality, to produce immortal-level items.

And Lu Yuan was able to pick up two immortal miracles in one day, which was unique in Pangu Continent!

The professor changed his tone: "So how do you get those high-level materials for powerful civilizations?

"[Supermatter Extreme Aggregation] is a way to catalyze and upgrade some materials through the power of Pangu Continent."

"The specific process is like this..."

This project is also quite troublesome, such as high temperature and high pressure, low temperature and high pressure, and special instruments are also required.

This instrument is similar to the Large Hadron Collider, and consumes amazing manpower and material resources.

"But the process will cost a lot of luck, right?" Lao Mao couldn't help asking, "Is there any good thing in the world that can upgrade for no reason?"

The professor was a little embarrassed and scratched his bald head: "It's true... the way to save money requires huge amounts of time, which can cost thousands or tens of thousands of years. If you want to save time, you have to spend more points on civilization."

"The current cost-effectiveness is not as good as the direct purchase of [Greedy Temple]. We have to estimate the price of 1 kilogram of high-purity epic material, which costs more than one thousand civilization points."

"The catalytic immortal level may cost more than 5,000 or even more than 10,000."

Everyone was silent, who could bear this!

The old cat almost swears, and the hair on his head explodes!

Although Lu Yuan was just listening, he was secretly shocked and kept thinking about human property.

"If there is no additional income from the trading market, the original 3,000 civilization points will be really short of it, and a few Level 4 technologies will be spent."

From this point of view, the development of advanced civilization is really not easy.

This also requires points for civilization, and that requires points for civilization. The family is big and the business is big and I can’t afford it!

But no matter what, this technology still needs to be invested and developed...

"First... first study cheap technology..." Lao Mao felt that he was about to have a soul and said tremblingly, "We still have to rely on picking up garbage... There is not much demand for high-end materials at present."

...

...

In the 444th year of the Era, [Temple of Greedy] after thirty years of fermentation, it was finally recognized by major races in the north.

The magic trick is indeed a hard currency, which triggered a wave of best-selling craze.

Although the price is a bit high, the emergence of a magical skill may change the course of civilization development and effectively make up for its own racial defects. It is indeed quite valuable.

"It can be not strong, but it can't be without it!"

Under the guidance of this idea, civilizations come to trade every now and then.

In recent decades, Lu Yuan has successively launched several best-selling magical skills such as "glyph reader", "whisperer", and "treasure hunting eye".

Among them, the one with the largest purchasing power is the human 18 civilization?!

Well, humans are indeed the most wealthy and most demanding civilization... especially when humans have indeed made some small money recently.

The old cat who knew the truth could only complain to the old people: "When I think of humans buying a lot, all the money I earned with hard work, Lu Yuan was cheaper, just like eating a piece of feces."

"Has humans been strengthened? Do I not spend money on my copy of the skills of God?!" Lu Yuan was shameless, "And once I sell it to humans at a low price, wouldn't it be soon speculated that this is the temple of the greedy demon god?"

This is true.

Like "glyph reading" and "craftsman's talent", it can further improve the forging level of craftsmen.

The combination of "super thinker" and "whisperer" can also improve scientists' R&D capabilities.

And natural double magic skills are extremely rare, and not one of the ten civilizations is necessarily.

Therefore, matching reasonable magical skills to top talents is indeed a way to improve the level of talents.

Just...too expensive!

Humans bought more than 500 god skills and spent nearly 1,800 civilization points!

This expense is really like flowing money, and all the money you earn is invested in talent training.

The most important thing is that people within human beings say "no loss" or "no loss" or "anyway, they have been making money over the years."

The old cat muttered a few words in his heart, and finally could only let go of this pain: "When can you send life to your [tea]?"

"No man will leave the North, you are still working on foreign workers there, right?"

Lu Yuan had a bitter face: "I have been studying for so many years, but there are still some technical levels that have not been broken through."

"I plan to use only small-level inspiration to accomplish this. Using large-level inspiration is still a bit wasteful."

"Do you have this ability? You think it's like it." The old cat was speechless.

The technological development of human beings actually brought some inspiration to Lu Yuan.

Especially the communication about the "Pangu World Will" and the construction of various formations fill some knowledge gaps.

So he plans to change his technical path.

Lu Yuan explained: "The teleportation function of [Immortal Palace] is limited to items and cannot transmit life. This is a defect at the rule level and is difficult to make up for."

"But in a short period of time, only humans should be willing to buy expensive [tea], and the transportation volume required will not be too large."

"Well... that's it."
To be continued...