In fact, the people of The Amazing Race had never believed in Lu Wu's "immortal".
This was because their ancestors had also worked hard for this, spending a lot of energy and resources to find a way to obtain immortality.
However, they all failed in the end. In order to achieve immortality, their ancestors chose to challenge the limit peak in order to bring back the true immortality.
In the eyes of the ancestor of the wonder race back then, only the strongest ultimate laws in the outer realms could achieve this.
However, what the patriarch had obtained in the end was the law of devouring, not the power of the Supreme law that could give them immortality.
Therefore, from then on, although the clansmen would fantasize about becoming undying and imperishable ... They would never actively pursue it again.