Building a spaceship is not just a matter of technology, but involves a lot of things. The larger the ship, the more aspects are involved.

A continental-level spaceship is not just as simple as the accumulation of building materials, the things involved in it are simply everything, in Xiao Yu's estimation, the difficulty of building a continental-level spaceship is at least a notch higher than the difficulty of building a national-level spaceship.

The current Xiao Yu does not have the ability to build continent-class spaceships. Even if it is barely built, it will have no use value due to mobility, defense, attack power, etc. Such a continent-class spaceship is more like a pile of broken copper and iron that is simply piled up.

Xiao Yu knew that the Molian civilization did not have the ability to build continent-level spaceships, and now they only had such an idea.

During these fifty years of voyage, digesting the technology obtained from the Molian civilization, integrating all the technologies he has mastered, and then developing more advanced and efficient technologies, and finally building a continent-class spaceship, is the goal that Xiao Yu is now striving for.

Nearly 100,000 scientists from the dwarf race have all been replenished to the Central Academy of Sciences, and the addition of these fresh blood has greatly alleviated the problem of Xiao Yu's lack of research and development. After the three-day vacation, these scientists, together with the original scientists, worked closely together like screws on a huge machine, and worked efficiently.

Under Xiao Yu's terrifying insight and strict discipline, the kind of dwarven scientists that Xiao Yu was worried about not being ostracized and suppressed did not happen much. After Xiao Yu severely punished those who violated discipline several times, this phenomenon disappeared completely. Xiao Yu's move won the gratitude of all the intelligent creatures of the dwarf race. But this is not the effect that Xiao Yu wants. What Xiao Yu wants is for them to truly merge together. Instead of opposing each other like this, they need their own coercive means to reluctantly cooperate together.

"This matter cannot be achieved in a short period of time, and it will take tens or hundreds of years to receive results." Xiao Yu sighed secretly.

After more than ten years of catching up, these follow-up fleets finally converged with the three national spaceships of China, the United States, and Russia, and all of Xiao Yu's liliang finally converged again. Now Xiao Yu, the total number of spaceships is less than two million, and there are only five national-level spaceships left. Fight against the Morian civilization. Although the gains are huge, the losses are also huge.

"At present, we have sailed a distance of nearly two hundred light years, this distance is not enough, let's continue to sail." Xiao Yu, who had gained a little leisure, glanced at the navigation log, and turned around again to devote himself to the heavy task of scientific and technological analysis.

It's not just Xiao Yu. All scientists are busy at the moment. Technological research and development has been completely halted before the complete level 5 civilization tech tree from the Merian civilization has been resolved. It would be foolish to do any scientific and technological research and development work. Thereupon. Once again, all the scientists revisited the classroom and began to improve their knowledge.

What these scientists need to learn is only the knowledge of a certain branch in a certain discipline, and these knowledge may not even occupy one-ten-thousandth of the knowledge of the complete fifth-level civilization science and technology tree. But Xiao Yu is different. Xiao Yu has this ability, and he also has the need to study all aspects of knowledge thoroughly.

There are also connections between disciplines, and tens of thousands of sub-disciplines are related to each other, and countless things can be derived. There's so much to think about. Even Xiao Yu was a little overwhelmed for a while.

Although the study task is very heavy and occupies almost all of Xiao Yu's energy, there is a question that can't help but come to Xiao Yu's mind, like a maggot on the tarsal bone, so Xiao Yu can't help but start thinking about it.

This question is very important, and it is even related to Xiao Yu's development path for thousands or even tens of thousands of years in the future. That is, what is the specific difference between the fifth-level and sixth-level civilizations?

This question seems very simple and easy to answer, Xiao Yu has been in contact with the sixth-level civilization more than once, and naturally knows that the sixth-level civilization is marked by the initial mastery of space technology, in other words, as long as the initial mastery of space technology, then it will naturally enter the category of the sixth-level civilization.

However, this begs the question of how to master space technology. What is the difference between the fifth-level and sixth-level civilizations that allows the sixth-level civilization to have access to space technology, while the fifth-level civilization cannot?

Is it a deeper understanding of fundamental physical theories? Or is there a breakthrough in energy technology? Or is there a huge improvement in materials technology?

In other words, where is the path to break through from a fifth-level civilization to a sixth-level civilization?

The discovery of nuclear energy has completely changed the way civilization obtains energy, giving civilization the ability to set foot in near-earth space, and a more perfect form of control over energy has allowed the second-level civilization to break through to the third-level civilization, mastering technology such as energy shield and energy weapons. The breakthrough of the basic theory allowed the third-level civilization to break through to the fourth-level civilization, mastered the curvature navigation, and completely opened the door to the universe, and the breakthrough to the fifth-level civilization was due to the mastery of tachyon-related technology, with the ability to detect faster than light, and even to make star cannons to destroy stars.

So...... How do I break through to a level 6 civilization?

The rest of the scientists probably don't feel this way, they haven't been exposed to this level yet. However, Xiao Yu, who had fully understood and digested the complete fifth-level civilization technology tree, had such a question after having an extremely deep understanding of all aspects of science and technology.

Xiao Yu can be sure that from a fifth-level civilization to a sixth-level civilization, the breakthrough point will not be energy technology. Because by the time of the fifth-level civilization, basically energy technology has developed to the top. The fifth-level civilization can already convert 100% of the quality into energy, could it be that the sixth-level civilization can obtain energy from the void? Or does a hundred parts of mass translate into one hundred and twenty parts of energy? It's basically impossible.

There is a connection between the development of civilizations, for example, the symbol of the fifth-level civilization, tachyon technology, has already shown clues in the fourth-level civilization stage, that is, the strange increase in matter that Xiao Yu repeatedly observed when he was conducting large-scale example collider experiments. By studying this strange phenomenon, Xiao Yu finally achieved a breakthrough. But Xiao Yu can be sure that his current self has not yet discovered this unknown phenomenon that can allow him to break through to a sixth-level civilization.

Xiao Yu has a feeling that breaking through to the sixth-level civilization may not be like the first-five-level civilization, as long as there is accumulation, it can be done.

After all, the sixth-level civilization is too mysterious, and the differences and commonalities between the sixth-level civilization and the Taihao civilization are unknown to Xiao Yu.

Xiao Yu had completely and comprehensively mastered the technology system of the fifth-level civilization, but Xiao Yu couldn't find the next step. In front of Xiao Yu, there seemed to be a fog, and this fog blocked Xiao Yu's footsteps.

"Space technology, space technology...... Space weapons, space shields, the ability to travel at speeds of up to one hundred and fifty times the speed of light, the mysterious hydrogen atom shell spaceship, the neutron battle star, the Radiant ......" these things were intertwined in Xiao Yu's mind, making Xiao Yu unable to sort out a clue.

"Let's take one step at a time, and let's do the best of what we are doing now. I don't believe that my Shenzhou civilization will stop at the fifth level civilization, and there will be no further development. ”

Xiao Yu's chaotic thoughts began to clear. Having experienced so many dangerous events in the universe has long allowed Xiao Yu to have this psychological quality. Xiao Yu firmly believes that no matter what kind of difficulties he encounters in the future, he will be solved by himself, just like that sentence, the pace of Shenzhou civilization will not stop.

Xiao Yu's gaze was once again outside the spaceship. In Xiao Yu's huge fleet, there are many detection liliang, and these detection instruments are constantly probing all kinds of situations in the visible universe.

Right now, these probes have detected something very strange. This thing was quietly suspended in front of Xiao Yu's fleet, and remained relatively static with Xiao Yu's huge fleet.

"Shenzhou civilization, stop, join the Guardian Alliance. We, the Guardian Civilization, have made up our minds that if you continue to cling to it, we will kill you......"

"We, the Guardian Civilization, have discovered your tracks, and the speed of light is only thirteen times the speed of light, compared to our speed, it is like an ant crawling, you can't run away. Joining our Guardian Alliance is your only way to survive. ”

"Our fleet is already on its way, this is your chance to zuihou......"

This strange thing sent a message to Xiao Yu's fleet, which Xiao Yu quickly noticed. It was at this time that Xiao Yu saw clearly what this thing was.

It has an almost 100% reflective surface, its surface is extremely smooth, and its overall appearance is in the shape of a water droplet.

Xiao Yu knew what it was at this moment. This thing I once encountered in the four galaxies of Tianyuan. At that time, the kind of thing I encountered was still controlled by Luka.

This is the Guardian Alliance's teardrop-shaped probe, and now, it is once again in front of Xiao Yu's fleet. (To be continued......)

PS: This is to make up for yesterday's one more, and I will be as soon as possible for today's two more, sorry.