Along the way, they had encountered galaxies that believed in the Dark Forest, but most of them had basically been deliberately engineered by advanced civilizations. In other words, the Level Six Civilizations at the very top of an entire galaxy's food chain had made the whole galaxy's environment foul and chaotic for their own benefit.
Some were conducting "civilization experiments," while others acted as hidden manipulators, trying to breed powerful civilizations through a survival-of-the-fittest approach and then harvest their technology. It was somewhat similar to the Harvesters.
However, these civilizations were not like the Harvesters, who also wanted to join the Great Voyage. They wanted to use this method to successfully step into Level Seven Civilization, but these civilizations had clearly overestimated themselves. Some had lost control of their own strategies and ultimately brought about their own destruction, while others had gathered so-called "Characteristic Technology" that was actually just technology with slightly distinctive strengths. Not one of them reached the Harvesters' level.
They were basically all steamrolled by The Great Voyage Organization along the way.
Of course, there were also galaxies with genuine Dark Forest environments, but those were galaxies where the rules of quantum communication had failed. Limited by the timeliness of communication, the entire galaxy had developed into a true Dark Forest.
All these encounters made the various civilizations of the current Great Voyage Organization suspect that this was another Dark Forest.
Especially after the Silver Heart Civilization, that big shot in detection, joined them and allowed The Great Voyage Organization to discover many war relics, everyone became even more convinced of this.
The Silver Heart Civilization truly deserved to be the organization's top authority in detection. Once they put in the effort, they discovered many wrecks and fragments of warships drifting through interstellar space.
The discovery of