At 2:47 a.m., she ran the final simulation.

Then she went home, walking with her own perfect, invisible, unrecorded gait—one that no software would ever judge.

“Run it again,” Elara murmured to the technician.

“My knee doesn’t hurt,” a pitcher would say, while his torque graph screamed red. “I feel balanced,” a gymnast would claim, as her ground reaction force vector pointed sideways like a broken compass.