After 100,000 years of silence, Titan is once again bustling with hustle and bustle.

There is a huge gap between the second-level civilization and the sixth-level civilization, and even with Xiao Yu's current ability, it is impossible to break through this gap directly. In other words, it is impossible for Xiao Yu to directly create the equipment of a sixth-level civilization with the creation of a second-level civilization, and there must be a buffer process in this.

What Xiao Yu has to do now is to use the equipment of the current second-level civilization to create the equipment of the third-level civilization.

This is a normal technological upgrade, and under the condition that Xiao Yu has mastered almost all the technologies of a sixth-level civilization below the seventh-level civilization, it is not difficult for Xiao Yu to complete this.

A large amount of minerals were collected from all over Titan, and then refined and purified at the level of the second civilization in the original equipment base, and then carried out the subsequent casting of the level of the second civilization. In the existing equipment foundation, Xiao Yu can not make a breakthrough in material technology and manufacturing accuracy, but he can innovate the existing casting process to a certain extent in terms of manufacturing ideas. After all, the technology of a sixth-level civilization is not completely unusable for a second-level civilization.

For example, even if the equipment of the second-level civilization is used, the sixth-level civilization can also create a robot with a more reasonable internal energy layout and a more accurate distribution of the power system. The overall efficiency is at least twice as high as that of robots made by Tier 2 civilizations.

Using these 100,000-year-old equipment, Xiao Yu began a new round of casting operations. The first thing to do is the upgrading of robots, and while the robots are being updated, all the old robots are driven to one place by Xiao Yu, where the first new base is built.

This new base will be at the level of a three-level civilization. The construction of this base took Xiao Yu five years. Five years later, the base was built.

From this moment on. Xiao Yu has fully entered the third-level civilization level.

The bases of the Level 3 civilization show a much more powerful construction ability. With this base as a starting point, a large number of third-level civilization equipment was built, and it became a large rear to support the entire construction operation, and a large number of equipment was continuously transported from here, replacing the mining equipment, transportation equipment, smelting equipment, and casting equipment of the previous second-level civilization. In just three years, Xiao Yu's construction efficiency has increased several times.

When the industrial foundation of the third-level civilization was firmly laid, Xiao Yu began to set out towards the fourth-level civilization. The iconic technology of a Level 4 civilization is the Elemental Decay Technology. This is a new way of energy source, after entering the fourth-level civilization, Xiao Yu no longer has to send robots to collect methane from the methane lake at all times, nor does he have to bother to extract oxygen from iron oxide ore.

It's only been eight years now. But in just eight years, the whole of Titan has changed dramatically. The original ninety-nine bases have been fully upgraded, and all of them have been upgraded to third-level civilization bases. From this time on, it was no longer the Aeolus helicopter flying in the sky, but more efficient. A small spacecraft with greater power for both near-Earth space and space. The planetary defense weapon against the impact of the Earth's asteroid is no longer a hydrogen missile, but is more convenient to use. An energy weapon that is more lethal.

The industrial base of the third-level civilization has been built. Xiao Yu then began the process of upgrading to a fourth-level civilization. The symbolic technology of the fourth-level civilization is the elemental decay technology, but the basic theory is the unified theory. Xiao Yu naturally mastered the theory of great unification a long time ago, so after having the scientific and technological foundation of a third-level civilization, there was no difficulty in creating a decay engine.

With the help of the primary decay engine as the drive, Xiao Yu manufactured more advanced machinery and equipment, and finally miniaturized the decay engine. Equipped with all ships, robots, and machinery.

It took Xiao Yu seven years to build a complete industrial foundation of a fourth-level civilization, and it took five years to complete the transformation from a fourth-level civilization to a fifth-level civilization. Xiao Yuyi spent a total of twelve years. The first tachyon communication device was manufactured.

This marks that Xiao Yu has truly stepped into the category of fifth-level civilization.

By now, twenty years have passed since Xiao Yu came to Titan. With sufficient computing power and scientific knowledge, as well as the support of a complete second-level civilization industrial base, Xiao Yu completed the breakthrough from a second-level civilization to a fifth-level civilization in just this time. The most difficult part of the development of science and technology lies in the process of starting from scratch, and after completing this process, the subsequent development will be much smoother.

Nowhere is this more evident than in human history. All those great scientists who have a great reputation and are familiar to people have all completed a breakthrough from scratch to leave their names in history. The reason why Xiao Yu did not choose to develop on the planet that was still in the feudal era, but chose to return to the solar system for development across thousands of light years, in addition to the fact that the solar system is Xiao Yu's hometown, a large part of the reason is also because there is a complete industrial base here.

It is not so simple to improve the industrial foundation of the scientific and technological level of the fifth-level civilization, even if Xiao Yu has already fully mastered this knowledge. Because the fifth-level civilization has truly and comprehensively stepped into the interstellar era, Titan alone or a solar system cannot support Xiao Yu's current development needs. For this reason, Xiao Yu had to allocate his computing power to build a huge shipyard, to build a fleet with real interstellar voyage capabilities, and spread his tentacles to several star systems around the solar system, from where he could obtain the materials he needed.

Over the next twenty years, Xiao Yu used a spaceship that could travel no more than fifty times the speed of light as a tool to extend his footprints to tens of light-years away. The Sagittarius Alpha Galaxy, also known as the famous Proxima Centauri, or Barnard's Star, Sirius, Nanhesan, Rutan's Star, Gliese's Star, etc., have Xiao Yu's footprints everywhere.

Proxima Centauri is a triad galaxy of stars of different sizes orbiting each other in a chaotic three-body motion, while Sirius is a binary star system consisting of a subgiant star and a white dwarf.

Gliese is constantly approaching the solar system, and in the distant future, it will be close enough distance to the solar system, at that time, its gravity will be able to directly affect the Oort cloud in the solar system, and in its gravitational battle with the sun, part of the star of the Oort cloud will be captured by it, and some will be expelled by it into the inner solar system.

It is foreseeable that during the period when Gliese is close to the Sun, the number of comets or asteroids in the inner solar system will definitely increase considerably. It's just that Xiao Yu's arrival will change all this. When Xiao Yu leaves, Xiao Yu will pack up the solar system and take it away, and Gliese Star will never have a chance to get close to the solar system.

From this time, Xiao Yu began the era of large-scale construction in the true sense. Xiao Yu's industrial base spread out from Titan, several large moons of Saturn, Jupiter, Uranus, several large moons of Neptune, and the distant lonely and cold Pluto, as well as Mars, Mercury, and the Lost Star, the Earth's asteroid belt, and even on the Kuiper belt or asteroid belt such as Vesta, Yueshen, Zena, Sedna, etc., Xiao Yu's industrial base began to appear.

As for Venus, Xiao Yu did not get involved. Because there is a group of tenacious beings reproducing on Venus, Xiao Yu does not want to affect their peaceful life. Even in the future, after Xiao Yu packs the solar system away, Xiao Yu will not interfere with Venus by any external force. Venus will become a kind of nature reserve-like existence.

The construction of the industrial infrastructure of the fifth-level civilization took Xiao Yu thirty years. Thirty years later, Xiao Yu built the first spaceship with space weapons and space shields that could travel at 130 times the speed of light.

In the following fifty years, Xiao Yu continued to expand the scope of his activities, with the solar system as the center, a radius of hundreds of light years became Xiao Yu's territory. All kinds of spaceships shuttle between different star systems at all times, serving as the task of transporting materials, a large number of interstellar bases began to appear, and the number of Xiao Yu's spaceships began to gradually increase.

Xiao Yu has developed his level of science and technology to his peak. Xiao Yu regained the ability to build that matched his technology level. A hundred years have passed, and from this moment on, Xiao Yu's focus has shifted to the construction of spaceships, as well as the preparation of galactic defense arrangements and cutting of small universes.

The solar system is always a place that is not suitable for a long time, as long as he has the ability to leave, Xiao Yu must leave as soon as possible. This goal was achieved according to plan after 100 years. The first continent-class spaceship, the New Asia spacecraft, was built, and the Hope spacecraft was completely repaired, and Xiao Yu relocated the entire Hope spaceship to the New Asia spacecraft.

The instruments related to the cutting of the small universe have also been arranged. Xiao Yu will use the solar system as the center to cut out a spherical space with a diameter of two light years and use it as his mobile lair.

By now, the era of development has come to an end, and Xiao Yu will begin preparations for a voyage to the galaxy, escaping from the galaxy to the galaxy's satellite galaxies, where he will start his own development.

Xiao Yu believed that when he returned, it would be the time when the Sweeper civilization would perish. (To be continued......)