Seeing Huo Yuhao sink into thought, Xuan Ziwen gave a faint smile and encouraged him. "Still, even being able to engrave basic core arrays in batches would already be an extraordinary idea."
Xuan Ziwen had a good first impression of Huo Yuhao, the student Lin Jiayi had foisted on him. He was nothing like that previous student from the royal family.
"Teacher Xuan," Huo Yuhao spoke up again. "Could we break every core array down completely?"
Xuan Ziwen froze, then frowned. "You mean..."
"No matter how complex a core array is, it's only a superimposition of shapes and lines," Huo Yuhao said. "So we don't need to design an advanced soul tool machine capable of engraving advanced arrays. We could use countless low-level soul tool machines instead."
"For example, one machine would only engrave straight lines, another would only engrave circles, and a third would only engrave triangles... and so on. Finally, we would pass the metal through all these processes, arranging and combining the results into the core array we want."
"There are plenty of other advantages, too. As long as we set up the basic templates on the low-level machines, we could piece together any core array in the end, however complex it might be. And we wouldn't need to design overly complicated machines."
Xuan Ziwen's eyes widened. He did not immediately argue, because his first reaction was that this plan was genuinely feasible.
One word escaped through his teeth. "Genius."
But Xuan Ziwen soon thought of several problems that still needed solving. "But you've overlooked the soul power needed to engrave advanced core arrays. Low-level soul tool machines can't supply enough soul power."
He paused briefly, a gleam flaring in his eyes. "Wait, this ties into the sealed Milk Bottle I'm researching. As long as I can