If every move he made could be calculated, even just roughly, there would be far too many things he couldn't do in the future.
He wanted to stay quietly at Deadman Peak and inevitably help solve some issues in secret within his capabilities.
Or help some people.
If he encountered a situation more severe than Shan Yue Ru's, where not saving someone would result in their death, should he save them or not? Considering his own interests, naturally not saving them would be best, but what if that person was Mu Canglong?
Or Ye Chen?
Or perhaps Great Elder Dongfang Tiancheng.
Still not save them?
If he didn't save the former, could he still call himself human?
If he didn't save the latter, he'd basically have no place at Deadman Peak.
So the ultimate solution was to understand the Life Plate, to find a way to resolve the troubles it brings.
