In this world, spiritual energy—"the exponent of energy"—was a variable.
Perhaps in ordinary people's eyes, this was no big deal. But in the eyes of those seeking the Dao, it was different. This additional physical quantity made the world they faced more complex than that faced by their counterparts on Earth.
Take Special Relativity, for instance. Albert Einstein only needed to discuss the changes in Newtonian Mechanics at high speeds, whereas Taiyi Tianzun of Shenzhou also had to consider systematicity, entropy changes, and a whole series of other issues.
Because spiritual energy possessed fluidity and was unevenly distributed, conditions like those in Earth's universe, where "the spiritual energy value was always one," were for Shenzhou cultivators simply an ideal experimental environment akin to "an absolutely smooth ground."
The physical formulas of Earth were, to Shenzhou, special solutions derived under the ideal condition of a spiritual energy value of one. Wang Qi only needed to verify them through simple experiments before using them directly.
Conversely, Wang Qi absolutely dared not use theories that could not yet be verified.
Because he cultivated Tian Ge Xing, Wang Qi could directly "see" electromagnetic force. The spells that controlled electromagnetic force also allowed him to complete certain experiments single-handedly in ways Earth's scientists could never imagine.
Only after Wang Qi used gauge field equations yesterday to construct a new mana field and display all manner of wondrous applications did he become certain that the Yang-Mills gauge field, along with its method of unifying the three fundamental forces other than gravity, was viable.
This was already an achievement that surpassed the Immortal Alliance's existing theories.
But...
It was not enough. This theory based on quantum field theory even possessed a fundamental contradiction with General Relativity, which revealed the nature of gravity. Gravity seemed utterly impossible to