I have a space station

"Wait a minute, didn't you say the Nata civilization was destroyed by the Mouni people more than 200 million years ago? How can you say the humans on Venus have been extinct for 1 billion years? Isn't that a contradiction?" Dongfang Chen asked.

"Mouni is just a general term. Do you think gene attacks are only effective against humans? Based on the DNA samples collected so far, there are as many as 208 species of organisms that are currently or were once controlled by the Sirius survivors," the robot replied.

"Are you saying that other species destroyed the Nata civilization?" Dongfang Chen asked.

"You could say that. Actually, based on what we know now, it's all their own fault. You may not know that the life forms on Sirius are completely different from those on Blue Star," the robot said.

"Don't tell me they are silicon-based life forms?" Dongfang Chen said, realizing the implication.

"You know?" The robot seemed a little surprised.

"That's right. Some time ago, I discovered a type of silicon-based microorganism during my exploration," Dongfang Chen nodded.

"It seems the decision to find you was the right one," the robot said.

"Continue," Dongfang Chen gestured for him to continue.

"After the Nata people entered the space age, they explored the Moon, Venus, and Mars one after another. Now it seems that this was the starting point of the Blue Star crisis."

"I guess that in the beginning, the Sirius survivors didn't target Blue Star as an attack target. Their main goal was to completely destroy human civilization. Otherwise, that disgusting worm couldn't have developed on Blue Star. Of course, we can't rule out the possibility that their energy was running out, and they could only do so much."

"The Nata people entering the space age may have made them feel very dangerous. That's why the Mouni people invaded later."

"Where did these Mouni people come from?" Dongfang Chen asked.

"Judging from the style of the warships, they should have originated from a Mars military base in the United Americas. Originally, there was constant infighting among the humans on Venus, and Mars had long been abandoned as a military star. In just 500 years, the human population not only decreased by 80%, but the technological capabilities also regressed significantly. The countries no longer had the means to travel to Mars, so there was no one on Mars. In addition, long-term human overexploitation and a subsequent asteroid impact event completely destroyed the Martian ecosystem. It was completely reduced to a barren land."

"The Nata people must have inadvertently brought silicon-based life forms to Mars. They developed and evolved there, and finally returned to Blue Star via the United Americas' warships, which led to their demise. But these are just my speculations," the robot explained.

"Isn't your speculation too bizarre? Is it possible for silicon-based life forms to control the warships of the United Americas?" Dongfang Chen found it hard to believe.

"My speculation is based on evidence."

"First: It was indeed the United Americas' warships that attacked Blue Star at that time. I saw it myself, and there's absolutely no mistake about that. But the people of the United Americas had been extinct for more than 700 million years. How could their warships have flown over from Mars?"

Dongfang Chen nodded, indicating his agreement.

This point was indeed very strange.

"Second: All of the warships were robots, and I detected the presence of silicon-based life forms in the remaining samples of the warships."

"Third: If the Sirius survivors had the ability to control these warships, they could have directly invaded Venus using the same method 1 billion years ago. At that time, humans no longer had the ability to resist those warships, and the success rate would have been higher. Why wait for more than 700 million years for nothing?"

"So I judge that these silicon-based life forms went to Mars later," the robot said, stating his deduction.

"Then why didn't they use these warships to return to the Sirius system?" Dongfang Chen thought from another perspective.

But this was from a human's point of view. As for what the Sirius survivors were thinking, no one knew.

"I guess it's because of insufficient energy. And we can't rule out another possibility," the robot said.

"What possibility?" Dongfang Chen asked.

"There's one thing that's very strange. After the Sirius warships were completely wiped out in that battle, no new warships ever arrived. There's only one explanation for this."

"Are you saying that there was also a problem with their star system?" Dongfang Chen understood.

"Yes, and that possibility is very high," the robot replied.

"That's right, only that can explain it," Dongfang Chen nodded.

"If I'm not mistaken, you only started cultivating humans hundreds of thousands of years ago, right? Why did it take so long? The Blue Star's ecology should have met the conditions for human survival long ago, right?" Dongfang Chen asked.

"I don't have that authority. This task was only issued hundreds of thousands of years ago, and I'm just carrying it out according to the task requirements," the robot replied.

"Who issued the task?" Dongfang Chen asked.