Adom's fingers traced four distinct patterns in the air simultaneously, each hand splitting its work between two separate spell matrices. White energy flowed in controlled streams, never crossing, never mingling where it shouldn't. Four spells, four completely different effects, all being woven at the exact same moment.And he wasn't even breaking a sweat.[Shatter Shield] formed in front of the corrupted bear charging toward them—a pale hexagonal barrier designed to fragment upon impact.[Wind Step] gathered at his feet, ready to propel him thirty yards in any direction the instant he needed to move.[Frost Lance] collected above his left shoulder, ice crystals condensing from the moisture in the air.[Heat Sense] spread outward in an invisible dome, tracking the movements of everything warm-blooded within fifty yards.Four spells. At once. Without confusion or degradation.This wasn't just impressive. It was impossible.The Academy's Fundamentals of Spell Weaving textbook devoted an entire chapter to the limitations of human cognition. "The binding constraint on simultaneous weaving isn't mana capacity but mental bandwidth," Master Thorne had explained during Adom's first year. "Each spell requires complete visualization of structure, precise intent, and controlled mana flow. Divide your attention and you divide your effectiveness—usually catastrophically."The human brain simply wasn't wired to process multiple complex magical structures simultaneously. It was like trying to solve four crystal lattice equations while also tracking how each solution affected the others. Most mages—even talented ones—could only handle a single spell at a time.Double-weaving was rare enough to be remarkable. In the entire history of the Academy, only a handful of human mages had mastered it reliably. The current Archmage was the only known human who could consistently double-weave without exhausting himself. (...)