Since we have decided not to give up scientific research during the voyage and to keep one billion clones awake at all times, there is one thing we have to consider. Li Qingsong must create an environment suitable for human survival as much as possible. Otherwise, not only will the work efficiency of the clones be affected, but they may also get sick, get injured, enter a state of aging early, or even die. In space, it is not easy to replenish clones on a large scale. In terms of the living environment, there are many things, such as air, temperature, and air pressure, which are necessary, but there is one most important aspect, gravity. In the solar system, every planet has its own gravity. It may be large or small, but it exists. The human body is more suitable to survive in an environment with a certain gravity. In this case, in addition to the aerospace mothership, heavy transport ship, and warship, Li Qingsong decided to build a type of spacecraft that had never been built before. A life-support craft with artificial gravity! Things like generating or offsetting gravity out of thin air are out of reach for Li Qingsong now. Li Qingsong guessed that it would require a technological level at least higher than that of the intelligent mechanical disaster to achieve. However, Li Qingsong has another clever way to achieve this.
That is the centrifugal force, which relies on the outward centrifugal force of rotation to create an effect equivalent to gravity. The appearance of this spacecraft then becomes obvious. It must be in the shape of a ring or a drum, because only in this way can it maintain its rotation and generate gravity. After comprehensive consideration, Li Qingsong finally chose the drum shape. The reason is simple: the drum shape has the highest space and area utilization rate. So, like other types of spacecraft, the first prototype of this roller-shaped spacecraft was soon produced. What appeared in front of Li Qingsong at this moment was a huge hollow cylindrical spaceship. It has a huge main shaft running through the center of the cylinder, and many steel structures extend from the main shaft to fix the roller-like structure on the outside. The drum-like structure rotates slowly at a fixed speed, so there is gravity inside the drum-like structure. Such a roller-shaped spacecraft is 10 kilometers long and 600 meters in diameter. Thus, the interior of a drum-shaped spacecraft has an area of about 19 square kilometers. After deducting the necessary facilities, there is still about 15 square kilometers of area that can be used. Here, Li Qingsong did not consider factors such as aesthetics and livability. He completely used the available area to build living facilities, such as dormitories, canteens, etc., and they all had many floors. In this way, under extreme circumstances, this 15 square kilometers of area can support about 10 million clones. For 1 billion clones, 100 such roller-shaped spaceships would be enough. But considering that there are still a large number of scientific research facilities that need to be built, as well as transportation factors - after all, these clones also need to move frequently, and there are even a large number of transportation needs between different spacecraft, Li Qingsong obviously cannot do such an extreme. In the end, Li Qingsong decided to build 1,000 of these drum-shaped residential spaceships. On average, one drum-shaped spaceship would be responsible for the work and life of about 1 million clones. In addition to the roller-shaped spaceship for the clones to live in, there are also the living and working needs of the blueprint people that need to be addressed. At this moment, after all these years of development, the number of Blueprint people has increased to about 200 million. Blueprint people are different from clones. If they were allowed to live like clones, it would be a good thing if they didn't go crazy, let alone produce scientific research value for Li Qingsong. There was no other way. In order to better extract value from them, Li Qingsong could only build more roller-shaped spaceships and, at the same time, reduce the population density of a single roller-shaped spaceship. In addition to the necessary industrial, living and scientific research facilities, a large amount of area was wasted on growing plants, raising wild animals, and even building completely useless things such as rockery and rivers.
In this case, a roller-shaped spaceship can only support 200,000 blueprint people. Two hundred million blueprint people will require the construction of 1,000 roller-shaped spaceships. So, 2,000 large roller ships, 650,000 warships, 5 million unmanned warships, 500 aerospace carriers, 1,000 heavy transport ships, and 10,000 other types of ships... All in all, the total number of spaceships Li Qingsong needs to produce reaches about million! Including various consumption and spare supplies during the voyage, the total mass of the entire fleet will reach more than 400 billion tons! One thing that is very obvious is that for every ton of spacecraft or material mass produced, Li Qingsong needs to consume dozens of times more resources to reproduce it. By this calculation, the total mass of materials that Li Qingsong needs to mine, smelt and transport during the entire production process is at least more than 20 trillion tons. A mass of more than 20 trillion tons! If this much mass were all water and were spread across the Earth, it would be able to create more than 300 Qinghai Lakes! Mobilize the mass of more than 300 Qinghai Lakes to produce millions of spaceships equivalent to the mass of six Qinghai Lakes, and then propel them to travel over long distances of tens of trillions of kilometers, from one star system to another. Such a huge project, such a great voyage, just thinking about it would make the Bluetook civilization, even at its peak, feel daunted and fearful. But at this moment, the maximum number of consciousness links is only 1 billion, which is only 1% of the population of the Bluetook people in their heyday, but Li Qingsong is full of confidence. Under the unified mobilization of Li Qingsong, the unified management and coordination of the Jade Emperor, and the direct construction of AI in various industries such as Shengong, Shennong, Dianmu, Luban, and Transportation, an unprecedented large-scale construction project affecting the entire solar system has truly begun. There are countless mines on many planets, and many giant machines roar all day long. A large amount of primary minerals enter the factories that roar all day long, producing countless metals, which are either processed on site or sent to other planets via space elevators and heavy cargo ships. Space bases appeared in orbit around many planets, and countless spaceships came and went. Giant aerospace motherships gradually took shape in space, and then in the empty "cages", supply boxes, life support capsules, etc. quickly appeared, just like fruit trees bearing fruit. Preparations for interstellar voyage were in full swing, occupying more than 99% of Li Qingsong's energy. Li Qingsong put a considerable portion of his remaining energy into another matter. "The difficulty of restoring the Earth's ecosystem is beyond my expectations. It seems I need to think of a solution."