Chapter 255: Scales and Thresholds

At twelve-ten in the morning, the landline in the county hospital's records room finally connected. A muddled response came through the receiver from the night-duty staff, with the hum of an old ceiling fan turning in the background. Lin Chen gave Xiaoman's name, ID number, and old medical card number, his pace steady, every word clear. The other person tapped at a keyboard for a while, and the scrape of paper came through the current. "The system only has electronic records from the last three years. The paper charts from five years ago are in the basement archive. The archive manager won't be on duty to pull them until eight tomorrow morning."

Lin Chen did not argue. He had expected this administrative tempo. "Please register the request. At nine tomorrow morning, I'll have Old Li from the county hospital's medical affairs office coordinate with you. I've already sent the checklist to your work email. Please verify the fields. If anything is missing, note it directly at the end of the list."

"Got it. We'll talk tomorrow." The other side hung up. The busy tone was short and abrupt.

Lin Chen leaned against the tiled wall of the corridor. The chill of the wall seeped through his shirt and into his spine. The numbness in his left leg had already spread up to his waist, as if wet sand had been poured into it. He slowly moved back to the ward, deliberately slowing every motion to keep his center of gravity from shifting and pulling at the injury. When he pushed open the door, his mother was still slumped beside the bed, breathing shallowly and evenly. Xiaoman's monitor gave off a regular ticking sound. The oxygen waveform rose and fell steadily on the dark green screen.

Lin Chen sat down in the chair and opened his computer. The cold light of the screen lit up the dark circles under his eyes. He created a new document and began checking Xiaoman's medication records from the past five years item by item. Sodium valproate, lamotrigine, levetiracetam... dose adjustments, seizure frequency, liver and kidney function indicators. He wrote very slowly, checking every figure against the old medical-record photos saved on his phone: prescription slips from the Qingshi Village clinic, outpatient payment receipts from the county hospital, discharge summaries from the provincial specialty hospital. The edges of the papers had curled; the writing had been blurred by sweat and rain, but the numbers were still clear. He was used to breaking complex problems into verifiable steps. When there were too many variables, he did not rely on emotion. He relied on ordering.

At two in the morning, the vending machine at the end of the corridor let out the low buzz of its compressor starting up. Lin Chen closed his eyes. There was no sleepiness in his mind, only a to-do list scrolling on its own: script logs, audit reports, medication lists, deposit transactions, surgical informed-consent forms. He broke them into nodes and marked priorities. It was a habit he had formed in the main room of the house in Qingshi Village. His father had calculated farm accounts the same way: one ridge of land, one bag of fertilizer, one rainstorm, all counted on abacus beads. Lin Chen took the painkillers from the drawer and dry-swallowed two tablets. They would need forty minutes to take effect. He leaned back in the chair and listened to Xiaoman's breathing. The sound was very light, but steady. Like a thin thread, tethering the nerves that were dragging him downward.

At six in the morning, before daylight had broken, a nurse came to draw blood. Lin Chen stood and gave her room, his movements slow but precise. His mother woke, her eyes red and swollen. Seeing the computer in his hand, her lips moved. "You didn't sleep all night?"

"I handled some work." Lin Chen closed the computer. "Mom, go downstairs and buy two buns and a bowl of soy milk. I'll feed Xiaoman when he wakes up."

His mother nodded. Her leg went numb as she rose, and she held the wall to steady herself. Lin Chen watched her stooped back disappear around the corner of the corridor. He turned into the washroom and splashed cold water on his face. The person in the mirror had sunken eyes and messy stubble. He shaved, then changed into a clean shirt. He buttoned the collar to the second button.

At seven-forty, his phone vibrated. Old Li sent over the scanned documents. The county hospital's official seal was bright red at the end of the medication list. Lin Chen enlarged the image and checked the perforation seal and date. After confirming there were no problems, he replied: Received. Send me the tracking number after the original is mailed. Much appreciated. Then he opened the banking app and transferred thirty thousand yuan to the inpatient department's account. Payment successful. Balance: 25,400.35. He took a screenshot and sent it to the nurses' station. The nurse replied: Deposit received. Bed reserved. Family member please come to the doctor's office at 9 a.m. to sign the preoperative assessment consent form.

At eight-thirty, Lin Chen arrived at the doctor's office ten minutes early. The attending physician was already waiting, with the multimodal imaging reconstruction films spread across the desk. On the black, white, and gray slices, the abnormal discharge area in the temporal lobe had been circled in red.

"The location is here." The doctor tapped with the tip of his pen. "It's only four millimeters from Wernicke's area. The resection range must be controlled within three millimeters. After surgery, short-term language-comprehension impairment is highly likely and will require rehabilitation training. In a small number of cases, long-term memory may be affected. The family needs to understand: this is not a cure. It is control. If you sign, he enters the operating room at two tomorrow afternoon."

Lin Chen stared at the film. The red mark looked like a piece of burning coal. He asked, "If you find during the operation that the adhesion is more serious than expected, what's the contingency plan?"

The doctor glanced at him, apparently not expecting a family member to ask so specifically. "Stop the resection and switch to vagus nerve stimulator implantation. The trauma is smaller, but it will require a second surgery, and the cost will increase by twenty thousand."

Lin Chen nodded. "Understood. Proceed according to that plan. If you must stop, prioritize language function."

The doctor's pen paused. He crossed out one line in the alternative plan on the consent form and wrote a new note. "You're sure?"

"I'm sure." Lin Chen picked up the pen and wrote his name in the family signature field. The handwriting was steady, without a tremor. The ink soaked through the paper, leaving a clear indentation.

At nine-ten, he left the office. The corridor had already grown busy: carts heading for tests, family members talking, nurses' footsteps, all mixed together. Lin Chen returned to the ward and clipped the copy of the consent form into a folder. His mother came back carrying breakfast. When she saw the paper in his hand, her hand shook. "You signed it?"

"Signed." Lin Chen took the bowl of congee, blew on it, and brought it to Xiaoman's mouth. Xiaoman opened his mouth and swallowed very slowly. Lin Chen watched his younger brother's Adam's apple move up and down. There was no tragic grandeur in his chest, only the calm that came after completing a procedure. He knew the signature was only process. The real test would be on the operating table, in the first sentence after waking from anesthesia, in the thousands of repeated pronunciation drills in the rehabilitation room.

At two-fifty in the afternoon, his phone screen lit up. Zhao Qiming's message read: The third-party audit's preliminary opinion is out. The core algorithm logic passed, but the real-time latency of the data desensitization module exceeds the threshold (>150ms). Investor requirement: provide an optimized stress-test report by 5 p.m. tomorrow proving latency can be reduced to within 80ms. Otherwise Q2 disbursement will be suspended.

Lin Chen stared at the screen. From 150ms to 80ms. This was not a matter of changing a few lines of code. It required restructuring the parallel queue for feature extraction and adjusting the memory allocation strategy. And tomorrow at two in the afternoon was Xiaoman's surgery. He sat in the chair, the pain in his left leg resurfacing as the medication wore off. He opened the computer and connected to the company's test server. The terminal window popped up, the command-line cursor blinking. He created a new branch named hotfix/latency_opt_v4. His fingers landed on the keyboard. The keystrokes were light but dense. He knew he would not sleep again tonight. But this time, he was no longer facing the screen alone. He dialed Su Man. It rang once, then connected.

"Sister Man," he said, "the stress-test report has to be submitted by five tomorrow afternoon. Latency is stuck at 150ms. I need you to switch the feature-vector cache strategy to asynchronous mode tonight. I'll rewrite the scheduler."

There was silence on the other end for two seconds, followed by the sound of typing. "Received. Repository permissions are open. Push it up and I'll run the stress test in parallel."

"Good." Lin Chen hung up. The cursor on the screen kept blinking. Outside the window, the sky gradually darkened, and the city lights came on one after another. He adjusted his posture, shifting his weight onto his right leg. The numbness in his left foot had become background noise. He typed the first line of comment: // Optimization target: latency <80ms, memory usage <2GB. Priority: P0. Enter. The code began to compile. The progress bar crawled slowly forward. Like a countdown before a scalpel cut into skin.