"Our Chuantian Group's spacecraft can be divided into four categories according to the engine classification." Professor Mo explained to Wang Xiaohai that if he recommended the purchase, he could also get a 3% purchase bonus of the total amount. Even so, he would not blindly recommend the most expensive and luxurious ones to Wang Xiaohai, as that would not be very practical for him personally. "The first category is the spacecraft with a teleporting fission engine. The nuclear engine has been improved for thousands of years. Although it still uses the tradition of the old industrial era, it is safe, reliable, and has a low failure rate. The disadvantage is that it is slow and consumes a lot of energy. The second category is the nuclear fusion spacecraft. The fusion engine has only been produced for more than a hundred years, and there are only three generations of improvements. The speed is medium. The failure rate is slightly higher than that of fission engines, but the nuclear energy consumption is ten times less than that of fission engines. The third type of spacecraft is a combination of light and magnetic energy. Its speed is very slow, not much faster than the old-era space shuttles. It only has the first cosmic velocity of this planet, but it is safe, reliable, and has extremely low energy consumption. If you don't plan to travel to other planets, it is recommended to purchase this type of spacecraft for personal use within the planet. The fourth type is the prohibited curvature drive spacecraft. Of course, according to the United Nations law, it is now prohibited from sale. Those sold in the past are also prohibited from use and will be recovered. Although this type of spacecraft has only been on sale for ten years and is expensive, it is fast and can reach close to the speed of light. It was once popular among wealthy people.

"Why is the warp spacecraft banned?" Wang Xiaohai held the tea in his hand, his thoughts flying. He thought that no matter which continent he came to, there was no shortage of tea, as if the whole universe was drinking tea.

"Because, like peeling an apple, it would gradually reduce the curvature of space and the speed of light until it reaches zero," Professor Mo said. "This would destroy planets and life. Therefore, the government, after obtaining public consent, has banned commercial and civilian use, reserving only experimental use."

Wang Xiaohai was a little disappointed and asked, "There are only these four types of spaceships. Aren't there any spaceships that can be used for interstellar travel?" There are only four general categories, and the more specific ones are the size, the luxury of the interior and exterior decoration, and the comfort level. Wang Xiaohai doesn't care about these.

Professor Mo looked at Wang Xiaohai with a strange look and said, "No, do you know of other types of spaceships? Or maybe you don't want to buy one and are just here to gather information."

Wang Xiaohai also felt that Professor Mo's answer was a bit problematic, as if he were being accused of being a corporate spy. Frankly, he was deeply disappointed. These ships could only navigate the Ludo system. What good was that? He estimated that even the best fusion ships couldn't fly as fast as he could. Warp ships were faster, but at best they could only reach the speed of light, which was far from what he expected. If they only traveled at the speed of light, reaching the nearby galaxies would take at least tens or hundreds of years. He didn't have that much time to waste.

"Of course I want to buy a spaceship, but your company's spaceship is too slow and doesn't quite meet my standards," Wang Xiaohai said. "Do you know of any other companies that have faster spaceships?"

"Of course not. Our Chuantian Group is the best spaceship company in the Ludo Galaxy. If we can't build a spaceship, then no one can," Professor Mo said firmly. "If we had the spaceship you mentioned that could fly out of the Ludo Galaxy, we would have entered a third-level civilization long ago. But the Ludo Galaxy is at best a 1.5-level civilization. We haven't even fully utilized the stars. Even the star collection ring plan was only proposed three years ago and has not been put into action. If this plan succeeds, we can make good use of the energy of the stars and enter a second-level civilization. This project was proposed by various academies of science and is time-consuming. It is estimated that it will take more than 100,000 years to build the first semi-circumferential collection ring around the sun. The total plan is to build at least 90,000 collection rings. Of course, the speed will increase as we become more familiar with it. The first one is the most difficult because the collection ring is too large. The mass of a collection ring should be greater than that of a planet, so we can only grab material from the sun. It is impossible to break down other planets to make collection rings. In the end, tens of thousands of collection rings will form the star collection ring system."

Professor Mo is very talkative and he can talk non-stop once he starts.

"Isn't this star collection circle plan a government secret project?" Wang Xiaohai asked softly. He knew what this meant. It was similar to the Dyson sphere in earth theory.

"No, that's not the case. Many people know about this. Besides, such a large-scale project would probably take tens of millions of years, so how could it be kept secret?" Professor Mo said, "Let's get back to the point. Let's talk about the spaceship. Don't you need to understand the market and technology before purchasing one? The spaceship you're talking about doesn't exist. You can easily find it by searching on the Ludo Galaxy's network."

Wang Xiaohai did not conduct any investigation, but he believed that Professor Mo was hiding something. He could not be deceived by this. It was difficult for awakened people to deceive him. He wondered what Professor Mo was hiding?

"Without interstellar spaceships, other spaceships wouldn't be so attractive to me." Wang Xiaohai was about to say goodbye when he suddenly thought it would be nice to buy a small spaceship to put in his ring, just like buying a car. He already had a hundred steam cars in his ring, and he had a hobby of collecting these historical cars. "How much does a small nuclear fission spaceship cost? What about the prices of light-powered and magnetic-powered spaceships?"

"A nuclear fission-powered spacecraft costs between 800 million and 100 billion. Of course, 100 billion is for a large commercial spacecraft, which can be customized with shopping malls, restaurants, and the like. Fusion-powered spacecraft are 50 percent more expensive," Professor Mo said, adjusting his glasses. "Magnetic-optical spacecraft are much cheaper, ranging from 200 million Rudos to 10 billion."

"I don't have enough Ludo coins. Can I buy it with gold?" Wang Xiaohai asked. It's not that he doesn't have enough money, but he doesn't have even a single dollar!

"Oh, I see. Generally, we would suggest you go to the bank to exchange the gold before buying. All the major banks on the third planet provide exchange services. The ratio is about one to five hundred, which means one gram can be exchanged for five hundred Rupiahs." Professor Mo replied. He thought Wang Xiaohai might be the son of a mining boss or something like that, and he owned a gold mine.

Wang Xiaohai secretly calculated in his mind: one tael of gold is fifty grams, which is twenty-five thousand rudos, one hundred million rudos is four thousand taels of gold, and ten billion is four hundred thousand taels of gold.

He only planned to exchange 10 billion Rudo coins, which was less than the cost of a meal for Yamao Beast.

"Then you wait for me at home tomorrow, I'll go to the bank to exchange some money." Wang Xiaohai said.

After Wang Xiaohai felt that gold and silver were dirt, he decided not to rob the weak in the future. He only robbed the rich, that is, those with the same or higher realm as him. He would trade with those with lower realms, even if it was a bit troublesome.

"I have two living rooms on the first floor. You can choose one to rest in." Professor Mo said, "There's also an old service robot on the first floor. Its program may be broken, and it always refuses to replace its broken robotic arm."

Wang Xiaohai was about to leave the second-floor living room when he stopped and said, "This isn't right. This is a robot that has developed self-awareness. It should be eliminated as soon as possible."

"It's okay. Service robots don't have interfaces that can connect to the Internet, so they can't update their knowledge. Besides, they are set not to disobey the orders of their masters, nor can they harm humans." Professor Mo was thinking about things in the laboratory and didn't care about the robots developing self-awareness.

"Then I'll go and rest first. I'm just reminding you. There's nothing I can do if you don't listen." Wang Xiaohai pushed the door open and went downstairs, almost bumping into Zhang Jiajia who was eavesdropping outside the door.