Among the natives, there was actually no concept of skill levels.
In essence, they were merely the Lord System's graded evaluations of different states of skill proficiency and their actual effects.
The same magic or combat technique could vary depending on one's level of familiarity with it.
Take the same beginner-tier spell—Fireball Spell.
If a fire mage apprentice cast it, they would need several weeks of practice. Casting it also required several seconds of chanting, and spell failures would occasionally occur.
But for a great mage, even the chant for Fireball Spell could be omitted.
Powerful mental strength could bypass the chant-assisted process and directly construct the spell model, achieving instant casting!
Some gifted casters could even discover flaws in a spell model through repeated casting and make suitable improvements, thereby increasing the spell's power or range.
That was the relationship between skill proficiency and skill level.
The skill book before him was a pure creation of the Lord System.
Therefore, Zong Shen only needed to look at its abilities; there was no need to investigate its origins.
Whenever he obtained an item in the past, Zong Shen had placed particular importance on its origins in addition to examining its effects. By tracing them backward, he could piece together clues about the past. But there was no need for that with this skill book.
It had been condensed and modified by the Strategy Module, long since losing any "archaeological" value. Moreover, if it truly had some notable origin, the skill description would surely bear an introduction naming a related great figure, yet there was nothing of the sort here.
Even Alpha, who was responsible for the introductions, only said a few simple words when he saw Zong Shen looking at the skill book:
"Mind's Eye is a simple development and