Jiang Yu handed the cube to a robot. Without exchanging a single word, the three of them took the airship back.
It wasn't until they were far from the Black Square that a flood of thoughts exploded in Jiang Yu's mind.
But before he pondered them in depth, he needed to record the process of this communication.
First by dictation, then in writing.
Regarding the initial private conversation, Jiang Yu was prepared and didn't fully disclose it, merely stating that he had deceived the other party into believing they had received a profound answer.
After all, communication with another civilization, even if it was trivial, was critical intelligence for humanity.
Jiang Yu took a short break, and the intelligence analysis team had already made a preliminary analysis of this exchange.
Everyone agreed that the most crucial piece of intelligence obtained from the exchange was that the current understanding of the 'Dark Forest Law' was incomplete.
During the meeting to discuss this intelligence, Jiang Yu expressed his opinion, "Since the 'Dark Forest Law' is the rule of weaker civilizations, could it mean that when a civilization develops to a certain stage, it discovers new universal rules?
"Are the new rules complementary to the 'Dark Forest Law'? Or could they be rules that have evolved out of the 'Dark Forest Law'?"
But what could this new rule be?
The conference room fell silent for a moment before Wu Zheng, who attended the meeting, speculated, "Could we compare the Black Cuboid Civilization with the Trisolaran Civilization to identify what is special about the Black Cuboid Civilization? Perhaps we could find some clues."
Humanity, now with reference to both the Trisolaran Civilization and the Black Cuboid Civilization, was far from speculating in isolation about cosmic civilizations.
Jiang Yu immediately thought of some key points: "Although the Black Cuboid Civilization is advanced, it seems too nonchalant, not as cautious as the Trisolaran Civilization.
"If the 'Dark Forest Law' comes from external threats, could the new rule stem from threats within a civilization?"
Everyone immediately began to discuss earnestly again, but Jiang Yu fell silent. He searched his mind, finally finding what he was looking for.
It was something Ding Yi had said before the battle of Uranus: Let's not worry about where the ceiling of basic theory is. What should humanity do if we really reach that ceiling one day?
What should our race do if we stop progressing?
Human greed won't stop, but what should we do when material life cannot satisfy that greed any longer?
What should we do?
Jiang Yu had thought he knew the answer, but he realized now that he might not know it at all!
This piece of intelligence was a vital hint. Although its specific content was unknown, its existence was clear.
It offered a direction for humanity's future precautions.
...
The intelligence analysis agencies that followed up believed that the second valuable piece of intelligence was the "Paradise" mentioned by the other party.
Was it a utopia among cosmic civilizations? Or did it signify protection from an Advanced Civilization for lower civilizations?
There were even speculations whether the place could provide some degree of ascension for civilizations or biological entities?
What kind of place could be called "Paradise" by all beings?
Additionally, the other party said "Paradise" was a legend in the universe. How had this legend spread?
It's important to recognize that under the chilling 'Dark Forest Law,' any information received in the universe, regardless of its nature, would not be readily trusted by any civilization.
So why did the Black Cuboid People believe in the existence of "Paradise"?
Everyone was looking forward to this so-called "Paradise." It couldn't go unsaid that a life under the deterrence of the 'Dark Forest Law' was always accompanied by depression and repression.
Everyone yearned for the "Paradise" described by the Black Cuboid People.
```
However, Jiang Yu reminded everyone, "This reminds me of a novel I read in college, which had a very interesting plot:
"A pirate, before he died, left behind a clue to a treasure!"
Jiang Yu looked around the group, "But soon some seasoned pirates and adventurers analyzed that the clue was unreliable.
"Think about it, why would a desperado kindly leave a clue to his treasure for others right before he dies?
"If he couldn't have it, he wouldn't leave it for others either, that's pirate thinking.
"Since he left a clue, there's only one possibility, it must be a huge trap!
"Whoever follows the clue would not come out alive or be half dead!"
Jiang Yu's words made everyone ponder deeply; even though the last Black Cuboid person didn't seem very aggressive, they too firmly believed in the 'Dark Forest Law.'
So his lack of aggression could simply be because he no longer had the power to be dominant.
Considering he had killed over a hundred of his own kind at the Heifang Relic Site, he had lived on Earth for so long but felt no kinship with Earthlings whatsoever!
Therefore, his hints about 'Paradise' seem more and more malicious.
...
For Jiang Yu personally, he had also obtained some key information: time ripples and cosmic strings, multidimensional interfaces.
Although he didn't fully understand these concepts, they seemed very impressive.
Especially the multidimensional interface, it gave him a more tangible understanding of the Wallfacer's Shop, which must be a product of high-dimensional technology.
The concept of time ripples was also easy to grasp, the existence of the Wallfacer's Shop caused subtle changes in the time dimension.
As for cosmic strings, Jiang Yu had no idea, he went to ask JK15 in the 'Shop,' but JK15 refused to answer on the grounds that it involved the future or technical aspects.
However, just from these few terms, it can be determined that the Black Square civilization's understanding of time and space, and high dimensions, is much more advanced than that of Earth's civilization.
At least they were able to detect subtle changes in time and space and understood what a multidimensional interface was.
Moreover, the question posed to Jiang Yu by the Black Square person alone reminded him of Humanity's hopes to continue its civilization under the attack of the Two-dimensional foil.
When a civilization faces a catastrophe, especially when the enemy's methods are completely unexpected, survival is all there is to hope for.
As the last of the Black Cuboid People, it still hoped to revive its own civilization.
The unique events that occurred with Jiang Yu were sufficient to show his particularities, which is why the Black Square person pinned their hope on Jiang Yu, a person who had been in contact with Advanced Civilizations, for the future of the Black Square civilization.
Jiang Yu's equivocating, shaman-like answers seemed profoundly mysterious at the time and thus bewildered the last Black Square person.
But no civilization would hope for the continuation of other civilizations.
...
Ten days after Jiang Yu's conversation with the Black Square person, the exploration robot, as promised, returned to the core area of the Black Square.
The core area was now easily opened, there was no light inside, and the previously suspended geometric objects were all dropped on the ground.
Clearly, Black Square civilization had completely come to an end.
Now the "Black Square" had truly become a tomb of a civilization.
Jiang Yu suggested holding a simple funeral for this civilization; the disappearance of a civilization might not be a big deal to the universe, but since it was encountered, it was still important to show enough respect.
At the same time, the robot also found the so-called generous gift from the last Black Square person: a body with a lifespan of thousands of years, a spherical object with no mass.
```