Time passed quietly, and before I knew it, it was the beginning of Tianyuan 65, and more than eight months had passed since the last battle. During these eight months, the wind was calm, and no trace of the enemy was found.

Everyone couldn't recognize the speculation: why hasn't the Sufeng clan arrived yet?

To be honest, this kind of waiting is actually not pleasant. But everyone has an indescribable happiness. Fortunately, every day of time, the more prepared everyone is, and the more hope of victory.

While waiting, the Dayang Group and the Tianyuan Star Civilization are rapidly transforming.

The accumulation of more than 100,000 years of cultivation, the explosion of science and technology for more than 60 years, coupled with the technology of the Xuanhuang Civilization and the technology of the Red River Civilization that were constantly analyzed, coupled with the huge external pressure catalyst, the explosion speed of the entire Tianyuan Star Civilization made Zhang Hao a little incredible.

It can only be said that human potential is really unimaginable.

Of course, it must be admitted that such an explosive speed is also due to the accumulation of more than 100,000 years in the past.

The accumulation of the past has created a huge population base of Tian Yuan Star. In recent years, under the guidance of the Ocean Group, the population on Tianyuan Star has officially exceeded one trillion.

The huge Tian Yuan Star, the generous living environment, and the long life span of cultivators, and the stronger their ability to grow older, made the population explosion possible. And these populations, because of their spiritual practice, do not have the most difficult problem of aging.

Because these "old people" are all masters of cultivation and are extremely intelligent, many of them can enter industrial production units with a little training.

As long as you have a little elixir and a little aura, you can work 20 hours a day. After meditating and resting for three or four hours, you can get up and get back to work.

In the face of this crisis of extinction, everyone broke out with unprecedented momentum.

The former Xuanhuang civilization has been extinct once. Such doom must not be allowed to befall again. Everyone erupted in wordless rage.

Under such circumstances, the Tian Yuan Star can actually transfer 300 billion industrial population in one go, and the source of soldiers who can be conscripted can be cultivated to 17 billion above the Transformation God! The number of qualified registered engineers from all walks of life on the Tian Yuan Star has reached 70 million. There are also tens of millions of elites engaged in scientific research.

The huge Tian Yuan Star provides a near-perfect foundation for industrial development.

According to the interrogation information, although the current Sufeng clan has developed for thousands of years, its population is only about 550 billion because of the sparse planet and inconvenient communication. However, they have a high proportion of masters, and it is estimated that there are as many as 700 million in the True Realm! The Pure Yang Realm can reach six or seven thousand.

In contrast, here in Tianyuan Star, the realm of returning to the truth, is currently only about a million. In the pure yang realm, you can count it on your fingers.

Maybe give Tian Yuan Xing some time, maybe it can break out into a miracle. But apparently, time is running out.

At the beginning of Tianyuan 65, Li Wei, Lin Yinghao and other masters of Dayang Group who broke through the realm of pure yang held an open exchange meeting again. At the meeting, everyone once again determined the pure yang realm exercises with the characteristics of Dayang Group, and completely opened up a new pure yang realm with a scientific foundation.

In this case, the Dayang Group also had to open "Zhou Tiangong". However, as Zhang Hao expected, even if the exercises are made public, there are few people who can understand them.

"Zhou Tiangong", which is above the realm of returning to the truth, has almost completely entered the stage of magic reform.

Turning the first page of the Returning to Truth Realm exercises, there is a formula written on it: the formula of quality and energy. Turning the first page of the Pure Yang Realm Exercises, there is another formula group written on it: Pi derivation formula.

If you look at the exercises, you can still understand the quality and energy formula. But what the hell is this formula for deriving pi?

In the face of everyone's inquiry, Lin Yinghao smiled and spoke: "In our world, in the three-dimensional world, pi is an irrational number, an infinite non-cyclic decimal number. Have you ever wondered what would happen if pi was deduced to the limit?

I think so. This kind of infinite non-cyclic decimal is not like a key, a digital key, like a ladder, they are the passage from the three-dimensional world to the four-dimensional world, and they are the guidance that naturally exists!

In fact, nature has long put the secret in front of us, but we turn a blind eye. ”

Everyone was stunned.

Among the masters on the scene, most of them understand technology, and a considerable number of them are scientific research elites from all parties. Everyone understands too well what the so-called irrational numbers are, and it is precisely after listening to Lin Yinghao's explanation that everyone was stunned.

It really makes sense when you think about it!

Then Lin Yinghao and others began to explain the exercises. From the realm of returning to the truth, it has been explained to the realm of pure yang. The cultivation route of the ocean group follows the information theory of the universe and the route of information accumulation. However, this accumulation of information is not a mechanical accumulation, but rather a research, understanding, and control.

In a word, learning makes me happy, and research makes me strong!

Under the guidance of Mr. Zhang, the cultivation route of the Ocean Group and even Tianyuan Star finally completely let go of themselves and never went back in the direction of the magic reform exercises.

Those who practice Xiao Zhou Tiangong and innate Gong also take this as a lesson and explore their own path. But after having reference and guidance, and having already had this exchange years ago, many people on the scene had an epiphany.

Zhang Hao didn't stay here for long. Compared with cultivation, Zhang Hao currently has more important things to do.

After months of thinking and preparation, Dayang Group is ready to build a super project - the defense of the Ring Tianyuan galaxy!

To put it bluntly, it is to build a otherworldly Maginot Line. However, this one is even more brilliant, and it will encircle the entire Tian Yuan galaxy.

Is this project a big deal?

The answer is: big and not big!

Big because of the range. It's not because of technology.

To defend against the ship's defenses, there is no need for physical defenses. Interstellar dust is enough. This is the strategic method proposed by Murong Shan, the commander of the Dayang Group. The idea came from the last 'block' near Jupiter.

When the speed of the spacecraft reaches 0.05 times the speed of light, the collision effect of the spaceship with interstellar dust, and even those free atoms and particles, cannot be ignored. As the speed of the ship increases, the damage from the collision will be exponentially magnified.

The current time-travel technology commonly used in the universe is to accelerate to 0.3 times the speed of light. At such speeds, even ordinary hydrogen atoms and molecules can cause the surface material of the spacecraft to peel off from an atomic point of view.

Even if a hydrogen atom can only peel off or shake one or two atoms, when countless hydrogen atoms and even interstellar dust hit the spacecraft, the spacecraft will be worn away little by little.

Murong Shan's strategy was to use the solar condensers left around the sun by the Xuanhuang Civilization back then, and use the concentrated light to bombard those asteroids on the periphery of the galaxy. Most of the asteroids on the periphery of these galaxies are a combination of ice, dust, etc. As long as it is exposed to sunlight, it will vaporize.

Such a line of defense is actually a typical example of hurting oneself before killing. Even if you win in the future, the starry sky will be cleared. It's not a small project. However, after comprehensive discussions by the Ocean Group and even the United Nations Parliament, the plan was approved.

The average distance from the asteroid belt near the Sun to the outer reaches of the galaxy is 6 billion kilometers. The light flies for five and a half hours. But there should be time for it.

In the distant starry sky, someone constantly reports the position and size of the asteroid and calculates the required intensity of light. Asteroids are constantly being evaporated. These asteroids are actually very small, some are only a few meters in size. Of course, if it is locked as a target, it must reach at least 10 kilometers to have use value.

The asteroid was first smashed with a rail cannon, and then the asteroid debris quickly evaporated under the strong sunlight. Eventually, a mist is formed. The mist quickly forms fine ice crystals.

These ice crystals have sharp edges, and there are dust particles inside the ice crystals.

The dust exploded rapidly in the starry sky under the thrust of sunlight and began to move towards the outer reaches of the star system.

Little by little, time passed. In the blink of an eye, it was three months, and gradually, a circle of defenses was formed around Tian Yuan Star. This circle of defense is about 400 million kilometers thick and surrounds the entire Tian Yuan galaxy. If you want to enter the Tian Yuan Galaxy, you must pass through this region.

After the dust spreads to such a wide area, it is completely invisible to the naked eye. But this starry sky is indeed densely covered with a large amount of ice crystals and dust. Once the ship flies by at high speed, the ship will be as sour as if it was flying into a mountain of knives.

The Ocean Group tested it with a rail gun. When the 0.15 times the speed of light flies into this area, the projectile of the rail gun will suddenly turn red and gradually disintegrate, like the ice under the scorching sun melting and disappearing little by little, and the final flight distance is less than 28 million kilometers.

During the whole process, the shells of the rail guns stood out like meteorites rushing into the atmosphere, dragging a long tail behind them.

Therefore, if the spaceship does not turn on the defense, it will be absolutely exciting to break into this starry sky at a super high speed. Even if the energy defense is turned on, it will greatly consume the ship's energy.

The most important thing is that once the ship enters this area, it will rub and generate heat, and it will no longer be able to become invisible.

After completing the arrangement here, seeing that the enemy had not yet arrived, everyone began to continue to arrange such interstellar dust defenses into deep space. Mainly in the direction of the Sufeng clan.

Time passed quietly, and before I knew it, it had reached the autumn of the 65th year of Tianyuan. It's been 14 months since the last battle, but no trace of the enemy has been found.

The captives had to be interrogated again. Get a possible reason: internal power struggle!

The Sufeng clan is a tribal system! They have seven major tribes and eight fleets, and the Sugu clan is strong and has two fleets. Now, the Bone Division has been wiped out as the best part of a fleet. So everyone speculates that this has triggered some kind of change within the Sufeng clan

Change. In these days, there was also a movement to seize power within the Sufeng clan.

But a pirate civilization is a pirate civilization after all.

In the spring of Tian Yuan 66, 18 months after the last battle, an unmanned spacecraft finally sent a message.