"Professor Smith, I have a question to ask you."

"Oh? What's the problem? Liu?"

"You said that since there is a universe that is very similar to us, if there is also a Chinese and an I on the earth of this universe, who looks exactly like me and has the same ancestor, then which I am the real me?"

"Well... If this issue must be discussed, it probably involves the true self and the self. Theoretically, the multiverse has no concept of the true self, only the self, that is, you are you, because your experiences are unique, just like if you come to the universe where he is and meets the person who is the same as you, it means that he will not run to the universe where you are at the same time. This experience is unique to you."

"What if our experiences are exactly the same before we meet? Can I think that I am the real me who has experienced the adventures of the universe, and that I in this universe is just a fake one? But that doesn't make sense? And if we extend it, for example, I have an older brother and a younger brother, if I have such a bunch of brothers in this universe, and their experiences before I arrived here were the same as those of my brothers on earth, and even DNA, then are they my brothers?"

"This... Liu, why do you ask me these things? Maybe you can try to ask Ning."

"But aren't you a philosopher? Professor Smith, I think these should be problems that philosophers think, right? Academician Ning studies mathematics and physics, and it seems that they are not related to these?"

...

These days, Smith felt like he was about to collapse. Ning Wei spent most of his time studying the operation of the astrophysics of the universe in the control room of the command tower. In his words, he had to compare it with the starry sky coordinates of the metaverse. Because he didn't know how long he could stay here, these were valuable information.

Well, Smith can't argue with this statement. He thought so too, the only regret is that he didn't have much research on cosmology.

So these days, he can only deal with Liu Wei's boring problems.

Fortunately, there was March, which prevented the two of them from communicating. But it was also because of March that Smith felt a great headache. Because in his opinion, Liu Wei, who was like a curious baby, was obviously not a good seedling for studying philosophy, and this guy is more suitable for quarrels.

However, in your spare time, it feels very good to make a cup of coffee and see the scenery on the observation deck.

Even though the scenery outside is actually quite monotonous, it is the universe after all. If you just want to see some scenery with a different mindset, you won’t get tired of seeing it.

Occasionally, Liu Wei would come to watch the scenery with him quietly, but more often, the two would fall into some controversy that seemed to Smith.

Fortunately, this life lasted for two months and finally saw the dawn.

...

"Look, that's the moon." Ning Wei walked out of the command tower, pointed to the planet in the distance and said, then probably felt that he didn't explain it clearly, and immediately added: "It should be said that it is the moon in this world!"

"Moon?" Smith looked in the direction pointed by Ning Wei, and then found that it was actually not clear, but a spherical body was there.

"What about the earth?"

"At present, our route is in the same straight line as the Earth. We can see the Earth after waiting for two days." Ning Wei said excitedly: "But it is not mainly for you to look at the moon. You see, this is a photo restored by the telescope released through the Kuafu in March."

As he said that, Ning Wei picked up the holographic images that had just been sorted out in the March database. The next moment, rows of buildings on the moon appeared in front of the two of them.

"Wait, is this the back of the moon? Can it be photographed so clearly?" Smith asked subconsciously.

"The original photo is relatively blurry, this is the photo after remodeling in March." Ning Wei explained.

"Then what are the buildings in these rows?" Smith asked in surprise.

"It looks like a mine." Liu Wei, who has more life experience, gave his own opinions.

"Well, my opinion is similar to March. There is a relatively mature mining system on the moon here. It should be not only mines, but also refinery factories." Ning Wei nodded and said.

"Mining on the moon?" Smith exclaimed.

"Yes, according to our analysis of the lunar soil, the moon has more than 100 minerals, such as iron, titanium, aluminum, silicon, etc. The most important thing is that the moon has a species of helium 3, which is rare on the earth. But according to our estimates, there are at least 9 million tons on the moon. If used for power generation, it can be used for tens of thousands of years." Ning Wei replied in accordance with Smith's words.

"Helium 3? Nuclear fusion? Are you saying that the earth civilization here has mastered nuclear fusion technology?" Smith asked in surprise.

"Who knows? Even if you don't master nuclear fusion, it's okay to do the mining and purification work first. I changed the route slightly, and I should be able to see the earth in twelve to eighteen hours. I'll go to sleep first, and you can continue."

After saying that, Ning Wei turned his head and walked towards the lounge, leaving two people looking at each other on the observation deck.

After a long time, Smith suddenly said to Liu Wei: "I have a feeling that your Academician Ning seems to know something, but he didn't share it with us."

Liu Wei listened to the words translated in the simultaneous interpretation headphones, thought about it and gave a very pertinent opinion: "If you have this feeling, I think you should start to review yourself. Professor Smith, after all, Academician Ning Wei has always been a scientist who likes to share with others."

After saying that, Liu Wei also walked to the lounge.

I will be able to see the earth in another universe soon, and I feel a little excited.

...

When sailing in the universe, the most anti-human point is probably that there is no distinction between day and night. In this case, human biological clocks can easily become disordered. In fact, March is already trying very hard to find ways to maintain the biological clocks of three people in the spacecraft. For example, the lights on the ship will show different brightness at different times. But obviously controllable artificial light is not as useful as natural light.

At least for the three.

However, Ning Wei usually reminds everyone to rest, whether it is Liu Wei or Smith, it is still very respectful.

After all, everyone wants to see what the earth in another universe looks like first.

Although it is impossible to see so clearly with the naked eye, the telescope on Kuafu is still very interesting with the Ai automatic modeling function of March.

After the three of them slept for a while, not long after, more holograms were displayed in front of the three of them.

However, this hologram brought more doubts to Smith and Liu Wei.

"This is……"

"March guessed that this is a garbage dump around the earth. These are space garbage. The damaged satellites, space telescopes, space stations, spacecraft wreckage and a space port built in synchronous orbit have become space garbage. In a few years, it will probably fall to the surface of the planet by the influence of the earth's gravity. However, it is likely that the landing location of these garbage cannot be controlled." Ning Wei pointed to the ring-shaped waste in the picture and explained.

"Space Port?" Smith felt that his brain was not enough.

In fact, Ning Wei also introduced the space port plan to him on his own earth, but that was the plan thirty years later. Moreover, the space port was planned to be built at the edge of the solar system, but the earth here actually built the space port on its own synchronous orbit.

"Yes, the preliminary judgment is mainly used for space delivery. For example, the minerals on the moon should be unloaded at this large port, transited from here, or sent directly to Earth, or sent to other places. Maybe they have built cities on Mars or other planets in the solar system, right?" Ning Wei explained in a guessing tone.

Ning Wei actually had his guess about the construction of a space port in a geosynchronous orbit. It is likely that the development speed is different.

The technology here is developed step by step. There is a high probability that when the planetary exploration mode is realized in the solar system, anti-gravity materials have not been developed on a large scale. In this case, the huge space transport ship cannot land directly on Earth, so to use the resources of other planets, a space port is naturally needed.

But what made Ning Wei particularly puzzled was that the civilization on earth had developed to this extent, so why could not avoid war?

"No, I can understand what the space port is for. After all, there are man-made mining areas on the moon. But why are there only wreckage left?" Smith asked with a confused look.

"What else can I do? Apart from the war, I can't think of any other reason." Liu Wei replied calmly.

"War? Is it that aliens attack the earth, or is it that the people inside attack themselves?" Smith said, shaking his head.

"If it is an alien attack, there is no reason why the moon's mineral base is just abandoned and has no traces of being left after the war. So it should be an internal war." Liu Wei gave his answer.

Ning Wei looked at Liu Wei, then looked at Smith, shook his head, and sighed: "Look, Professor Smith, I have told you that it is good to continue studying mathematics. You have to study philosophy. As a result, the logical analysis ability is not as good as that of our Brother Liu. You... are nothing."

"I..." Smith wanted to say something, but suddenly realized that the matter seemed to be like this and could not be refuted at all. In fact, he wanted to explain that he was really scared by these scenes, so he ignored many clues. But when Liu Wei was like him, everyone received the same information at the same time, the explanation seemed pale and he simply did not make any defense.

It was just awkward that he still wanted to say something: "Why is there a war? It's time to develop to this point. Isn't it better to live well?"

Ning Wei smiled and said, "This can really be discussed from a philosophical perspective. I think it can start with the dictatorship of the majority to the minority."

"Um?"

Ning Wei said casually: "For example, when the world economy enters a downward period, the people of developed countries suddenly find that their lives are harder than before. It's like you, you originally had more than 30 million yuan in wealth. If the world continues to develop according to your expected situation, as long as you are not profitable, it will be enough for you to spend your entire life. But an accident happened. Your more than 30 million yuan suddenly is only worth 300,000 or even less, making you unable to maintain your originally relatively wealthy life. What would you do?"

Smith pondered for a moment, all of them were smart people, and he immediately understood what Ning Wei wanted to say.

"I probably understand what you mean. But what I want to tell you is that ten years ago my personal wealth was about 50 million, but it has shrunk by more than 20 million in the past ten years. And it is not counted as the shrinkage of inflation."

"Haha, Smith, you are a rich man who does not have high requirements for life, so this shrinkage has no impact on your life at all. But think about it, if it was the original mid-class millions, it had a severe impact on life, but many people could not solve it, but they could still be careless, what would happen?" Ning Wei said with a loud laugh.

Smith was silent for a while and said, "You are too arbitrary, Ning."

"It's not that I'm too arbitrary, but that you should look at history more. Professor Smith." Ning Wei shook his head and said.

"Ahem, I'll say, don't talk about these disappointing topics. There is no point in arguing about these three of us on this ship. Maybe we should discuss when we can arrive? And should we connect with the intelligent life on that planet?" Liu Wei became a peacemaker.

Of course, it may be that after Liu Wei calmly thought about it, this is the most important issue to consider at the moment.

"It only takes half a month to reach the Earth-Moon System. And when we come, how can we not contact us? My idea is that the Kuafu first goes to the moon orbit, and then we take the Feilong to the moon base to see if there are any clues that can be connected to the intelligent life here. If we can't find the clues, we will take a spaceship to get close to the earth to see the situation." Ning Wei said cautiously.

There is no way, this is indeed cautious.

There is still too little information given in the biological computer. Ning Wei doesn’t know what the situation is on Earth now, so he naturally needs to be careful. The main reason is that there is too little information on various weapons on the planet in the system, Ning Wei is not sure whether the weapon system on the planet will pose a threat to the Kuafu.

After all, this is a planet that even a spaceport is built. According to the analysis of space wreckage, it takes global power to build a successful spaceport on their earth. There are as many as three in the synchronous orbit of this planet. Through the analysis of the location of the wreckage, it may also belong to three different countries. It is conceivable how high this civilization has developed to before the war broke out.

So it is not an exaggeration to be careful.

"That's all. By the way, Professor Smith, have you received training in wearing and taking off space suits and walking on the moon?" Liu Wei looked at Smith and asked.

"This... Ning, have you trained?"

"Of course, before the Kuafu name was promoted to heaven, I made a year's preparation, which also included these." Ning Wei said, "I spread her hands.

"Okay, Professor Smith, don't worry. These days we will go to the lower layer to simulate the gravity environment of the moon. I'll train you to walk on the moon. How about it?"

"Liu, I suddenly realized that you are a gentleman."
Chapter completed!