Wang Ye continued using Shrinking Inches to walk approximately several thousand kilometers, moving from one end of the boundary to the other. Yet, he didn't sense any fluctuations of unknown energy, ultimately concluding that it was the Primordial Qi realizing the Curvature Engine.
The reason behind his splitting headache was simply because maintaining the space-time field required real-time solving of countless spatial equation parameters, leading to neural computational overload.
It should be noted that his current neural computational power is comparable to the world's most powerful computers. Even this level of neural power experiencing such intense side effects illustrates the incredible difficulty of such spatial calculations.
Actually, what surprised Wang Ye was not that he would have a headache from neural computational overload.
What surprised him was that, with his current capabilities and computing power, he actually managed to achieve the Curvature Engine so early,
