At an electronics shop between a laundromat and a discount grocery store, he met nineteen-year-old Raina Brooks. She had finished high school with excellent grades in mathematics, then stayed home to care for her younger brother while their mother worked two jobs. The small shop paid her to replace phone screens and diagnose computer boards. Her supervisor called her clever with gadgets, never brilliant, though she regularly repaired assemblies other technicians declared beyond saving.
Caleb found her sitting at a bench with a damaged motherboard beneath a magnifying lamp. She did not stand when he entered. She simply asked whether he was buying something or had broken something. He told her he was looking for somebody who liked solving difficult problems.
"Everybody says that when they're trying to pay less," Raina replied.
"Fair enough," he said. "What are you working on?"
She described an intermittent power failure that appeared only after the machine had been warm for several minutes. Caleb asked what she had already ruled out. She answered in a sequence so careful and logically sound that he forgot he had come to recruit. When she explained why the obvious faulty component was actually innocent, he leaned closer and asked her to show him the record that proved it. She did, and her expression changed. It was rare for somebody to ask about her reasoning rather than demand the finished repair.
"You could do this in aviation," Caleb said. "With training, supervised practice, and the right credentials."
Raina looked at the flyer he handed her. "I can't pay for another school. I can't even afford to leave this job long enough to try."
"Then we need to see whether our stipend and schedule can make it possible. Don't quit anything yet. Let us do the math together."
She read the flyer twice. "Why would somebody build a program for people who can't pay?"
"Because people who can pay aren't the only ones who can learn."
Two days later she submitted an application. Caleb remembered the precision in her diagnosis more clearly than her grades, though the selection panel considered both. When she was accepted, she called him and asked, in a voice that trembled despite her effort to sound casual, whether the offer was real. He told her it was real, and that he expected her to bring the same skepticism into the classroom that she had shown him in the shop.
In a farming town ninety miles away, he met Walter "Big Walt" Benton, fifty-one, a heavy-equipment mechanic who had repaired tractors, harvesters, and farm trucks for thirty years. Walt had spent most of those years being told he was too old to retrain for anything else. He knew the smell of overheated hydraulic fluid and the sound of a pump beginning to fail before it changed a single dashboard reading. He could read diagrams, though he had learned slowly and had never enjoyed written examinations.