When The Great Voyage Organization emerged from the two-dimensional world, they discovered that the maximum warp speed in the three-dimensional Great Universe had already risen to one million times the speed of light, and that for a very long time, it had not continued increasing the way it had before.
For The Great Voyage Organization, this change was utterly shocking, because no one knew who had caused it.
Although the current warp limit was still only half of the two million times light speed mentioned by the Four-Dimensional Lifeform, it was already much more convenient. If the universe's environment had changed back then, The Great Voyage Organization would have been long gone by now.
Unfortunately, this change had nothing to do with ordinary Level Six Civilizations. Otherwise, it would not have been so difficult for Level Six Civilizations to begin their Great Voyage.
Yes, it had nothing to do with ordinary Level Six Civilizations, because this change in warp speed had been caused by the Restarters' "Cable-Stayed" project reinforcing the Cosmic Rules. To even know about such a change, one had to possess at least the ability to modify physical laws.
So the minimum threshold for it was Cosmic Civilization. Of course, certain races with unique talents might be able to develop a little of it at the Level Six Civilization stage, but at most they would only gain twice as much as a normal Level Six Civilization. That bit of warp speed was still painfully slow for a Great Voyage.
If one wanted to roam the universe, one still had to be a Cosmic Civilization.
After detecting that the maximum warp speed was no longer changing, the scientists of the various civilizations in The Great Voyage Organization also realized that this change, whose author was unknown, had already stopped.