If foreknowers could truly reincarnate without limit, then the Celestial Favored Clan would not have "declined." Among the Celestial Favored Clan, there were quite a few at the Limit of Dao Integration, with past and future gathered into one body.
Even if the aftershocks of the Celestial Civil War two hundred million years ago had used some method unfathomable to those beneath the Celestials to kill most of the foreknowers of the previous era, there should still have been many powerful survivors.
One had to know that their resurrection required no contingency plan—or rather, the fact that they were "alive" in the future could itself serve as a contingency plan.
Get on the train first, buy the ticket later.
As long as, at some moment, the flow of spiritual energy in the universe generated a structure similar to that powerhouse's immortal aura—or whose similarity passed a certain threshold—it could become an opportunity for resurrection.
Yes, it sounded a little like "monkeys typing out the complete works of Shakespeare" or "randomly hammered-out code actually running."
Even if it happened, there would be no way to extract that fact from the universe as a whole.
But foreknowers did not need to "find" it. So long as it happened, they would definitely know, use it to resurrect, and then send the information back.
So long as such a thing happened within the observable universe.
The power of limited foreknowledge could then be regarded as equivalent to "choosing history."
"There are two reasons. First, reincarnation takes time after all." The Demon Emperor explained, "Second... foreknowers are not absolutely immortal. At the very least... killing oneself is still comparatively realistic."
The Demon Emperor explained in detail.
Though "a foreknower's consciousness can emerge once similarity exceeds a threshold," randomly generating that "threshold" was not necessarily so