This is what is called technology.
As for the portion of strength that has been weakened...
There is a barrier between a Saint and a Quasi-Saint.
He's inherently the lower limit of a Saint.
Being weaker just means he further explores the lower limits of a Saint.
A Quasi-Saint still can't defeat him.
He still can't defeat other Saints.
How does that affect him?
The Saint of Longevity's mindset differs from other Saints; he's never bothered with enduring to cultivate, and since strength comes easily to him, he doesn't value it much and trades it when necessary.
Strength is something to be seized, to be gained unexpectedly.
The sincerity Ji Changsheng displayed made Empress Hou Tu increasingly convinced.
This is more than just empty words; it's real and substantial.