Humans, the only powerful and powerful species on earth, are also the current rulers of the earth. Human rule has gone through an extremely long evolutionary process, so long that humans themselves cannot examine it. Once upon a time, humans were constantly searching for other life forms in the universe, perhaps because of the gregarious characteristics of intelligent races. But every time I searched, I was met with a dark blankness and silent silence. So humans acquiesced, and unilaterally acquiesced, that they were the only intelligent life form in the known galaxy. But it was this "acquiescence" that led to the fate of reincarnation.