A thousand years rose and fell.
Humanity and the Daya Civilization had spent a thousand years developing in some corner of the Orion Arm.
A thousand years of peaceful development had restored both civilizations to their former strength. Humanity had surpassed its past self, with its number of Star-Class fleets breaking a historic high to exceed six million vessels, and construction was still ongoing.
The industrial capacity of a Level 5 Civilization was extraordinarily formidable. Humanity and the Daya Civilization had hollowed out many Star Systems in this region of space. If they had possessed technology capable of rapidly extracting Stellar Energy, they probably would not have spared the stars themselves.
Even so, even if they had possessed such capabilities, Humanity and the Daya Civilization would not have used them. Both civilizations understood that tampering with stars was the easiest way to attract the attention of other civilizations.
Yet even without damaging stars or extracting resources from the stars themselves, as the next millennium began, the two civilizations had already decided to leave this region of space.
They had remained in one place for a thousand years and hollowed out many planets. This would alter the optical phenomena of those stars, and many civilizations could use such optical changes to identify the anomaly of vanished planets, thereby discovering signs of civilization activity here.
For example, a star's luminosity might initially display periodic fluctuations observed through the Transit Method. If those periodic fluctuations suddenly vanished, then a planet must have suddenly disappeared.
The more advanced technology became, the easier it was to observe such changes. Accordingly, advanced civilizations also constantly watched how their actions might affect the Great Universe and whether those effects could expose them.
As an established Level 5 Civilization, the Daya Civilization naturally understood this. Human Civilization, meanwhile,