Ancient Years

Gan De's words Yue Yuan speechless for a long time.

He had considered that Gan De might say many things, but he never expected him to say this.

This argument seems plausible from a logical standpoint, but it lacks any evidence whatsoever. It is merely a conclusion drawn from a combination of information gathered from various sources based on human observation and experience.

Moreover, this conclusion seems so absurd. How could a perfectly healthy advanced civilization in the universe just disappear into thin air? It doesn't make sense!

"Gan Boshi, is it possible that since the birth of the universe or the Milky Way Galaxy, life in other places, like on Earth, has evolved into Sentient Life and civilization only at this stage?" Yue Yuan pondered.

"The Chief's idea is good. If Sentient Life can only be born in the environment of the First Star Cluster, then it is indeed possible," Gan De replied.

"Alright!" Yue Yuan breathed a sigh of relief.

His knowledge of astronomy was quite good, so he knew what Gan De meant.

Star populations are classified into three groups First Star Cluster, Second Star Cluster, and Third Star Cluster. In simpler terms, they are the third generation of stars, the second generation of stars, and the first generation of stars.

The so-called First Star Cluster refer to third-generation stars like the Sun. These stars are formed by the re-aggregation of the products of second-generation star explosions and possess Heavy Element that are not found in first- and second-generation stars.

The first generation of stars, Third Star Cluster, are the earliest formed stars, and their structure is almost entirely composed of hydrogen and helium. Like our Solar System, third-generation stars contain various Heavy Metal; all the elements present in the human body originated from the explosions of previous-generation stars.

In a sense, humanity is indeed Children of the Stars. Sentient Life born in the First Star Cluster's cosmic environment is Children of the Stars.

And as Gan De said, if Sentient Life can only arise in third-generation stellar environments, then Yue Yuan's situation might actually be true.

After all, the sun was only five billion years old before it exploded, while life on Earth was born about 3.5 to 4 billion years ago. If life can only be born in the environment of a third-generation star, then the emergence of other Life Planet in the universe and the birth of Sentient Life must have occurred around the same time.

Since the formation of third-generation stars is considered to be within the same era, even if there is a time difference in the emergence of Sentient Life, it should not be as outrageous as a difference of tens of billions of years. Therefore, it is possible that the situation described by Yue Yuan is true.

However, judging from Gan De's tone, he clearly does not agree with the idea that Sentient Life can only arise in third-generation star environments, even though humans currently have no evidence of it and have never seen life in first- or second-generation star environments.

"In Gan Boshi's opinion, what exactly happened in that distant past that could have caused almost the entire advanced civilization of the Milky Way Galaxy to disappear together?"

In his heart, Yue Yuan still believed that it was possible for Sentient Life to arise only on the first star, but he did not want to argue with Gan De at this time. He knew that even if he did not say it now, many scientists would still have the same idea after Gan De brought up today's thoughts for discussion.

In any case, how life forms born in the cosmic environments of Third Star Cluster and Second Star Cluster utilize their resources is something humanity has no way of knowing or verifying. Moreover, even if such civilizations do exist, are active in the Milky Way Galaxy, and have been encountered by humanity, we have no way of determining which civilization originated from the Third Star Cluster cosmic context.

At least in the Low-level Civilization, it would be impossible to know.

Let the scientists debate and discuss these matters; they might even come up with various hypotheses and conjectures. Whether these hypotheses and conjectures are right or wrong, they will all contribute to the development of science to some extent.

"That's unknown."

Gan De shook his head first. After all, this idea had only just been put forward, and humans couldn't possibly go back in time to see what happened, so naturally they didn't know.

However, wisdom itself has the ability to associate and imagine, so after pausing for a moment, Gan De continued, "Based on our current understanding of the universe, there are only a few possibilities. First, billions of years ago, a great war swept through the entire Milky Way Galaxy, almost wiping out advanced civilizations."

"Secondly, for some unknown reason, all the advanced ancient civilizations concealed themselves at the same time."

"Third, the advanced civilizations of ancient times all left the Milky Way Galaxy at some point in time for some reason."

Needless to say, a great war is a war that could wipe out even the Advanced Civilizations of the Milky Way Galaxy; it must be an earth-shattering, awe-inspiring conflict.

Given humanity's current understanding of the Milky Way Galaxy, the first scenario is indeed quite possible. After all, didn't forces like the Harvesters, the Milky Way Galaxy Axis Alliance, the Perseus Commonwealth, and the Silicon-Based Collective emerge recently? Perhaps they are currently at war, or the forces they lead might, as the first scenario suggests, trigger a new Milky Way Galaxy war in the future.

As for the reasons for the war, humanity has no way of knowing.

Yue Yuan pondered for a moment, then looked at Gan De, "Hide them? But the Milky Way Galaxy is right here. Do you think they can hide in some corner for billions of years?"

Gan De laughed and said, "Just because we can't do it doesn't mean that those ancient advanced civilizations can't. For example, they might be hiding in their own Small Universe."

"Alright then." Yue Yuan nodded in response. Humanity has never touched upon any related theories about the Small Universe; the name only appears in science fiction movies and TV shows. Worrying about it now is just a waste of time.

Just as Yue Yuan was about to speak again, he heard Gan De's words drift into his ears.

"As for the claim that they all left, although it is only speculation, it is not impossible considering that the Awakeners came across the galaxy."

After saying that, Gan De changed the subject and said, "But does the Chief of Staff remember that the Awakeners said they also found a remnant Star Gate in a certain Level Seven Civilization ruins, which is how they successfully reached the Milky Way Galaxy?"

For a Level Six Civilization like the Awakeners, moving from one galaxy to another was already incredibly difficult; for civilizations below Level 6, it would be completely impossible. Therefore, compared to the first and second scenarios, I believe the possibility of an ancient advanced civilization leaving the Milky Way Galaxy for some reason is the least likely.

Yue Yuan hesitated for a moment, but still spoke up, "What if they were taken away by some Level Seven Civilization?"

After saying this, Yue Yuan looked at Gan De, who had a helpless expression, smiled, and continued, "Alright, Gan Boshi, I know that all of this is just immature speculation, and there are many possibilities. We will have to explore everything in the future. If there really is some earth-shattering secret hidden in the past of the Milky Way Galaxy, I think that as long as we humans are strong enough, we will definitely find out the truth one day."