Chief Ji asked the driver to bring a sledgehammer. When the driver swung the sledgehammer, he hit Black.

Jiang Yu and Chang Weisi took a closer look and saw that there wasn't even a white mark.

This reminded Jiang Yu of "water drop", but "black square" is much bigger than "water drop".

Jiang Yu knelt down and touched the "black square". It was very warm, a bit like the peel of a lychee, and a little rough to the touch.

He murmured to himself: "Why do you idiots like to show your strength in this way?"

Chief Ji asked: "What?"

Jiang Yu knew he had made a mistake, so he lied: "I said I felt an unspeakable power on 'Black'."

"Yeah," Chief Ji said, "Damn it, even if the Trisolarans four light-years away threatened to sterilize us, we didn't expect there was such a thing right under our noses!

"What do you think I am? Plasticine? You can squeeze it as much as you want."

Jiang Yu and Chang Weisi looked at each other. This was the first time they saw Chief Ji angry.

Chief Ji took a deep breath and quickly adjusted his mood: "Let's go to the meeting."

The meeting was held in a spacious military tent. More than a dozen people had already arrived at the venue. Chief Ji sat at the head of the table, with Jiang Yu and Chang Weisi sitting next to him.

At the beginning of the meeting, Chief Ji pointed at Jiang Yu and Chang Weisi: "I believe you all know them, so I won't introduce them further. They will also join this group in the future, and one of them will even become your direct leader.

"Okay, tell me, do you have any new discoveries?"

Jiang Yu glanced at Chang Weisi. He estimated that everything about "Black" might be handed over to Chang Weisi, because Chief Ji had not talked to him until now, and he should not let himself be responsible for this aspect of work.

Then he suddenly felt helpless. In the morning, he was just happy that everything was back to normal, but unexpectedly something bad happened in the afternoon.

An old man with white hair said: "We still have too few clues. So far we roughly know the size of 'Black'.

"No detection instrument has penetrated the black square's surface, and now we don't even know if it is hollow or solid.

"So we suggest that before new discoveries are made, we first have reasonable speculations about the construction or formation of the 'Black Square', and then it is possible to guess its builder or the process of its formation."

Chief Ji nodded: "Having an idea is better than having nothing at all."

The old man was obviously the leader of this group, and he reported: "Our main dispute at present is, is Black Square formed naturally? Or was it built by ancient people?"

"Team Leader Xu and some scholars believe that the 'black square' is a product created by ancient people through special and lost craftsmanship.

"The key now is to figure out the processing technology of 'Black' as soon as possible and who performed the processing."

The old man added an accent to the word "ancient people", which seemed to convey to Jiang Yu and the others that he meant "ancient humans"!

After saying this, a middle-aged man in his forties nodded. Jiang Yu judged that he should be Team Leader Xu.

The old man continued: "Other scholars believe that this is a natural product, because the production process cannot be mastered by modern technology, and it is almost impossible for the ancients to have this technology.

"And so far, all models of the universe have been based on purely logical forms.

"Who knows if something similar to the 'Black Square' was produced during the formation of the universe, the Milky Way, the solar system, and the Earth?"

Chief Ji looked at Chang Weisi and then at Jiang Yu: "What do you two think?"

Jiang Yu glanced at the recorder in front of Chief Ji. He had listened so carefully to the old man's speech just now that he didn't notice when Chief Ji turned on the recorder.

Chang Wei thought: "I think we should start with the material. Only after we understand the material first can we have further clues and make further guesses."

Jiang Yu said: "I once studied history for a period of time in order to improve my professional quality. I think the speculation that 'Black Square' was built by ancients can be basically ruled out."

Team Leader Xu and a few others discussed quietly for a few words, but the silence at the conference table soon returned.

Jiang Yu continued: "As far as I know, our ancestors began to use armored gold inscriptions to record events more than three thousand years ago.

"For such a big project, if it was built by our ancestors, there would definitely be sacrificial activities. As long as there are sacrificial rituals, there will definitely be records.

“Even if this project was carried out before writing was invented, there would still be some legends handed down from generation to generation.

"But now there are neither records nor legends. Moreover, with the productivity of the legendary era, it is impossible to complete such a huge project."

The old man who spoke just now asked: "Mr. Jiang thinks that the 'black square' is formed naturally?"

"No!" Jiang Yu denied: "I believe everyone already has the answer in their hearts. It is not a human construction, nor is it a natural product!"

Team leader Xu suddenly became excited and said: "We all know about the existence of Trisolaran people, but we can't think that everything is created by aliens!

"We also create a splendid civilization and a glorious history!

"The 'Black Cube' must be a product of human creation on earth, but we don't know the specific craftsmanship yet!"

Jiang Yu smiled and said: "Team leader Xu, don't get excited. You need to have more imagination when guessing this kind of thing. Don't push yourself so hard.

"Then let me give you another guess: Could there have been a prehistoric civilization before the earth? Is 'Black' their product?

"Sorry, my guess about aliens just now was a bit reckless. After all, there is a huge flaw in this guess, that is, none of us have ever seen aliens!

"The aliens who have the ability to build 'Black Square', even if they have left, will definitely leave some of their products on the earth."

The faces of Team Leader Xu and several others softened slightly. They seemed to agree more with the speculation of prehistoric civilization than aliens.

Jiang Yu suddenly raised his voice: "Everyone, the more you encounter such incomprehensible things, the more you must open your mind! Expand your imagination, and then make a reasonable argument!

"The universe is much broader and more complex than we imagine. Don't limit your thinking to people and nature!

"I know that the appearance of the Trisolarans has made everyone feel very nervous, fearing that our civilization will perish in the future!

"Now that we have discovered the 'Black', we are afraid that there is something wrong with the 'heel' of our own civilization, which will cause confusion in our self-perception!"

After two years of experience, Jiang Yu has become very experienced in speaking. He waved his hand to express his firmness: "As Team Leader Xu said, we have a splendid civilization and a glorious history.

"Please don't be civilized and have low self-esteem. Facing our shortcomings bravely is the way to show our courage!"
Chapter completed!