1000 years.
Luna's goal was achieved sooner than expected.
In her 358th year of hibernation, the first being with restored cellular memories appeared.
It didn't immediately do anything unusual but went to a regular building on Proxima Centauri c—a shop it frequented—behaving as it always did.
The only difference was a sudden urge to use the restroom. It spent half an hour there before emerging.
After some time, a service robot entered the shop, retrieving a tiny needle—only two or three centimeters long—from a hidden compartment.
It inserted the needle into its body and began analyzing it.
It was analyzing the underlying logic of cellular memory restoration and its reproducibility.
Fortunately.
Ayla's biological expertise had improved vastly after studying numerous Multi-eyed specimens. Cells were like an open book to her.
While she couldn't replicate the experience of the first subject in another individual, the research provided invaluable insights, increasing the probability of cellular memory restoration from 0.000014% to 0.072%.
The success rate had risen from 14 in 100,000 to 72 in 10,000.
...
The second year.
A pandemic erupted on Proxima Centauri c.
Within two months, the disease infected over 80% of the population, but a vaccine was quickly developed.
Every creature on Proxima Centauri c received the vaccine.
...
In Luna's 384th year of hibernation.
A political schism erupted on Proxima Centauri c, resulting in clearly defined left and right factions.
The left favored welcoming the extraterrestrial civilization, forming an alliance to prevent future invasions.
The right considered this folly; the existing extraterrestrial civilization was an invasive force seeking to subjugate them without conflict. Submission would only lead to defeat.
While many had hoped for the arrival of the advanced civilization that created the tower 400 years earlier, such sentiments remained largely suppressed.
Only now did this societal division manifest openly within the ruling class.
This was primarily due to the influence of those whose cellular memories had been restored becoming leaders.
Luna had never placed her faith in those who had simply returned from the tower but rather on those affected by the people that restored cellular memories.
...
In Luna's 397th year of hibernation, the year was 5217 A.D.
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Nearly 3180 years had passed since the destruction of Earth.
A small-scale war erupted on Proxima Centauri c, resulting in only tens of thousands of casualties but ultimately deciding the fate of the left and right factions.
That same year, the right-wing faction was forced to leave Proxima Centauri c, creating a divided planetary system.
A protracted hundred-year war ensued.
Casualties during this war were relatively low, with the conflict primarily focused on ideological struggle.
The Proxima Centauri civilization, during the early stages of this war, expanded onto both Proxima Centauri b and c. Both factions engaged in a military buildup, driving rapid advancements in weaponry and related fields, resulting in an explosion of scientific innovation.
Within a century, the Proxima Centauri civilization advanced from Type 1.8 to Type 1.9.
The tower remained at a distance of 30 AU.
The right-wing faction deployed a large fleet to destroy the tower using advanced weapons.
But the left-wing faction deployed a fleet to counter them.
In the final stages of this hundred-year war, the conflict escalated, resulting in over a million casualties and exacerbating the conflict between the factions.
...
A.D. 5326.
Nine years later, Proxima Centauri b launched a surprise attack on Proxima Centauri c, destroying its largest dark matter energy plant and creating a 70-kilometer-wide crater on the planet's surface.
The attack resulted in billions of casualties.
This attack had profound consequences, weakening Proxima Centauri b for the following three centuries.
The left-wing faction seized this opportunity, openly portraying the right wing as saboteurs and attracting many talented individuals. They implemented extensive social programs, improving the quality of life on Proxima Centauri c, surpassing that of Proxima Centauri b.
Around the same time, novel items began appearing in Proxima Centauri c's markets.
Initially purely for entertainment, these items quickly expanded into various aspects of life, becoming a widespread trend.
Most notably, human architectural aesthetics.
Proxima Centauri c's newest buildings conformed to human architectural principles.
Simultaneously, their cuisine began to change, incorporating unfamiliar spices, some palatable, others extremely unpleasant.
However, some were retained, and others were rejected.
Palates adapted over time, a form of cultural assimilation.
Despite the ongoing war, communication between Proxima Centauri b and c continued, and these trends spread to Proxima Centauri b, subtly influencing the entire Proxima Centauri civilization.
After the left-wing faction's three-century dominance.
A being who had returned from the tower announced that he had reached the summit and obtained a gift from the advanced civilization.
The right-wing faction captured that person, discovered high-energy dark matter and deployed it in warfare.
This dark matter was three times more powerful than previously utilized forms, propelling the Proxima Centauri civilization into a new era.
The right wing, with its overwhelming advantage, conquered over half of Proxima Centauri c.
This was a significant victory for the right wing. The left wing was suppressed, some even appealing to the advanced civilization behind the tower for assistance.
There was no response.
However, around this time, anyone exiting the tower gained access to previously unknown technologies.
The left wing, protecting the tower with a large fleet, monopolized these technologies.
These technologies spread rapidly throughout the left-wing controlled areas and then across the entire civilization, enriching the left wing, whose average income became three times that of the right wing.
Enraged, the right wing launched a campaign to eliminate the left wing twenty years later.
The left wing, by this point significantly weakened, became a minor faction.
Thus ended the 826-year-long Proxima Centauri civil war, with the anti-assimilationist right wing victorious.
However, instead of destroying the tower, the right wing began sending people inside to acquire knowledge and technology.
Over eight centuries, the Proxima Centauri civilization underwent sixteen major leadership changes.
The leaders who had initially feared the tower were long dead, replaced by a new generation raised under the influence of the tower's technology.
The tower was no longer a threat to be eliminated.
From the beginning, the victory of either the left or right wing was inconsequential.
...
In a small shop, a robot was stacking goods. Through its camera, the items appeared just like the artifacts from human civilization it contained.
It looked outside.
The roads, buildings, streetlights, clocks, robots, robotic pets, clothing and jewelry—everything bore the unmistakable mark of human civilization.