The saint civilization and the devil civilization have been looking for each other's small universe, but neither side has found each other's coordinates at present.

In order to force the other party to appear, the attack from the angel civilization camp became more and more fierce.

A hundred years later, the Hunter Arm has been occupied by the angel civilization camp, and human activities have become more difficult.

Two hundred years later, the angel civilization camp continued to approach, and occupied the fourth spiral arm of the Milky Way in repeated civilization wars.

In the end, the fifth spiral arm of the demon civilization camp, the ruler arm.

This is the last territory of the demon civilization camp. Once this area is occupied, the small universe of the demon civilization will inevitably be found.

"In three hundred years, the two major five-level civilizations in the Milky Way will inevitably have a battle." Human civilization also realized the urgency of time.

Once the Milky Way civilization is unified, it is inevitable that the overlord civilization conquers the surrounding galaxies.

There is a overlord civilization in the Andromeda Galaxy, and it is not advisable to attack blindly. Then the Magellan Galaxy, which is closer to the distance, is their first target of attack.

"After our human civilization cracked hyperspace technology, it can now be said to be a peak civilization of level 4." In the Supreme Academy of Human Sciences, Du Xingyu and a group of scientists were discussing the direction of scientific and technological development of human civilization.

"The Institute of Astrophysics has made breakthrough progress in the research on neutron star wreckage, and we can already imitate neutron star kinetic energy weapons." An academician said, "It will be the most advanced galaxy-class warship!"

"About Dimension Technology, the microcosmic analysis of astral civilization is not yet complete, and our limited understanding of Dimension Technology is falling into a bottleneck."

"The grading of civilizations is not unreasonable, but dimensional technology is the key to our breakthrough of level 5 civilization." Du Xingyu said.

"How do we break through to level 5 civilization?"

Everyone has been thinking about this question for hundreds of years.

"The utilization of energy efficiency is completely different at different levels of civilizations," said the academician of the Institute of Energy.

"According to our researchers' inference, first-level civilization uses fossil energy and nuclear energy; second-level civilization is nuclear fusion energy; third-level civilization is antimatter annihilation energy; fourth-level civilization is space energy; to fifth-level civilization, it should be dimensional space dimensionality reduction energy."

"Our research on hyperspace found that falling from high-dimensional space to low-dimensional space releases a large amount of energy; while rising from low-dimensional space to high-dimensional space requires absorbing a large amount of energy."

“The level of this energy is more advanced than the three-dimensional space energy we use.”

"In simple terms, we used space energy in three-dimensional space before. To achieve the energy utilization rate of level five civilizations, we have to use space energy in four-dimensional space, which we call dimensional space dimensionality reduction energy."

"Apart from energy, it is dimensional weapons." said an academician of the Academy of Space Military Sciences. "We don't know much about dimensional weapons."

"The small universe is a dimensional technology creation, and it should not be considered a dimensional weapon strictly."

"From the information obtained from the devil civilization trading market, it is known that the creatures of devil civilization are four-dimensional creatures, and their dimensional weapon should be four-dimensional strike weapons."

"This is probably because they can travel through four-dimensional space by themselves, so they can be easily done. Although we humans can imitate this method, this is not the most suitable four-dimensional weapon for us."

Du Xingyu thought: "Compared with four-dimensional space, one additional dimension is the timeline. We may have a four-dimensional perspective and conduct research on the timeline."

One-dimensional space can be understood as a line containing countless points.

Two-dimensional space is a plane with length and width.

Three-dimensional space is the three-dimensional universe in which humans live, with three dimensions: length, width and height.

And when it comes to four-dimensional space, there is an additional timeline.

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Simply put, three-dimensional space moves forward along a single timeline. From the Big Bang, the birth of the universe, and it moves towards the end of the universe, this is a four-dimensional timeline.

When we reach five-dimensional space, there will be more than one time axis. Different changes in each event will give birth to different time axis, which is also the basis for the birth of parallel time and space.

There is also a higher dimension, which is not within the scope of human research capabilities.

"Human vision cannot see four-dimensional space, and thinking is difficult to think. It would be great if we could get information about devilish and civilized creatures." said an academician of the Institute of Biology.

"You're right, I'll find a way to do this." Du Xingyu also realized that as three-dimensional creatures, it's difficult for them to have a four-dimensional vision.

He owns a technology simulator that can analyze things and conduct research from a high-dimensional perspective.

But other scientists cannot do it. If we can find information about four-dimensional creatures in devil civilizations, this is not a problem, and human civilization can also study dimensional technology more easily.

"We need to take more risk." In order to achieve this goal, Du Xingyu specially guided a third-level civilization "bionic civilization".

This civilization is composed of bionic robots made by humans. They escaped when the space of the Pleiades star cluster collapsed, gave birth to self-awareness, and obtained the technology of the human civilization, becoming a level 3 civilization.

The bionic civilization joined the demon civilization camp and became Du Xingyu's spy civilization.

The top leaders of the entire bionic civilization are the intelligent life he created, as well as the consciousness of himself and other human commanders.

In other words, he has now become the "black hand" behind the bionic civilization.

...

In the Milky Way, the vacuum zone between the Max and the Immortal Arm, a large number of fleets are gathering.

"We have no way out!" A giant beast roared in the communication channel.

It is the commander of the giant beast civilization, the giant beast of bone, and the commander-in-chief of this battle.

"The angel civilization camp is approaching step by step, and our living space is getting smaller and smaller!" The Bone Behemoth mobilized before the war.

"If we let them occupy the quadratic arm, we will lose our homes and the power to survive!"

"So we are here to fight the Angel Civilization camp, destroy them, and regain the Immortal Arm and the Hunter Arm!"

"All civilizations are not allowed to escape and must obey commands. Otherwise, you will be executed, and your tribe members in the small universe will also be sentenced to death!"

Here, hundreds of civilizations gathered, all of which are affiliated civilizations of the demon civilization camp, including the bionic civilization arranged by Du Xingyu.

"The war is finally going to start." Du Xingyu's consciousness was attached to the commander of the bionic civilization, the bionic starry sky monster.
Chapter completed!