Chapter 256: Thresholds and Silence

The time in the lower-right corner of the screen ticked over to 01:14. The logs in the terminal had slowed to a crawl, like a river gradually running dry. Lin Chen stared at the last line of output: [INFO] Batch 4096 processed. Avg latency: 112ms. Peak memory: 2.1GB.

Still over the limit.

He rubbed the bridge of his brow, his fingertips brushing against dry, aching eyes and stirring a faint sting. The numbness in his left leg had spread to his knee; sitting too long made his lumbar spine feel as if it had been pierced through by a rusty iron rod. He pushed the chair back and stood with one hand against the wall. His right foot touched down first, planted firmly, then he slowly shifted his weight onto it. His left foot hovered, toes grazing the floor as though stepping on a mass of waterlogged cotton. He walked to the washroom and turned on the tap. Cold water rushed over his wrists and streamed down his forearms. In the mirror, the whites of his eyes were threaded with blood, his cheekbones stark. He tore off a paper towel, dried his hands, and returned to his seat.

A WeChat message from Su Man popped up: Cache eviction strategy changed to LRU+TTL. Feature vectors will load in shards; memory usage should come down. Have you finished the scheduler changes on your end?

Lin Chen typed: Queue lock contention is too severe. Switching to a lock-free ring buffer. Give me twenty minutes.

No pleasantries, no emotion. Two windows, two sets of logic, running in parallel inside the late-night servers. He switched back to the IDE, deleted the original threading.Lock, and rewrote the underlying data structure. Pointer offsets, memory alignment, CAS atomic operations. Line after line of code landed, the clatter of the keyboard unusually crisp in the quiet hospital room. Xiaoman turned over in the inner room, his breathing even. Their mother was leaning against a folding chair beside the extra bed in the corridor, a thin blanket over her, her brow faintly furrowed, sleeping lightly. Lin Chen draped his coat over her shoulders, moving very gently.

02:40. Compilation passed.

Lin Chen pressed Enter. The stress-test script started. The progress bar climbed slowly. 10%, 30%, 60%... logs began flooding the terminal. He held his breath, eyes fixed on the real-time metrics. The latency curve first rose, paused briefly at 140ms, then plunged as if cut off by a blade. 95ms. 88ms. 82ms. Finally it stabilized at 79ms. Peak memory usage: 1.75GB.

He leaned back in the chair and let out a long breath. Most of the heaviness trapped in his chest dispersed.

Su Man's window lit up: Stress test passed. Package the logs and send them to me.

Okay. Lin Chen replied. He exported the CSV report and attached the flame graph analysis and memory allocation snapshot. He checked the filenames, data scope, and timestamps three times. After confirming there were no mistakes, he clicked Send. The email-delivery chime sounded at three in the morning, very soft, yet like a stone dropping into a deep well.

He shut down the computer and went to the hot-water room at the end of the corridor. Only half a mouthful of cold water remained in the thermos. He mixed in hot water and drank slowly. Only when warmth reached his stomach did the stiffness in his limbs ease a little. He walked back to the ward and sat beside Xiaoman's bed. The sketchbook on the bedside table still lay open; beneath the dim night lamp, the pencil lines looked rough yet stubborn. He reached out, closed the notebook, and slid it into the drawer.

Outside the window, the sky shifted from ink-black to gray-blue. The city had not fully woken yet; only the regular sound of a distant sanitation truck spraying water could be heard. Lin Chen closed his eyes and leaned against the back of the chair. There was no sleepiness, only the exhaustion that followed extreme tension. He knew that sending the report was only the first step. The capital side's review would take time, while the countdown to the operating table would wait for no one.

Seven o'clock. A nurse pushed a treatment cart in. Blood draw, skin preparation, wristband verification. Xiaoman was awakened, his eyes still slightly dazed, but he cooperated. Their mother went to handle paperwork; Lin Chen followed the nurses' station staff to anesthesiology to sign forms. People came and went in the corridor, and the smell of disinfectant was so strong it seemed impossible to dissolve. He looked at the densely packed clauses on the consent form. The tip of the pen paused for one second over the words "informed consent," then fell. His handwriting remained steady.

Eight forty. The preoperative preparation room. Xiaoman had changed into blue-and-white striped hospital clothes. A small patch of hair had been shaved away, exposing the positioning marks on his scalp. He sat on the bed, legs dangling, and gave them a slight swing.

"Brother," he called.

"Mm." Lin Chen walked over and draped a thin coat over his shoulders. "If you're cold, say so."

Xiaoman nodded and said nothing more. He lowered his head and looked at his own hands, his fingers unconsciously rubbing the edge of the hospital gown. Lin Chen knew he was afraid, but he offered no comforting words. Fear was useless; explanations were useless too. All he could do was stand here and complete every procedure that had to be completed.

Nine fifteen. His phone vibrated. Zhao Qiming had replied: Report received. The technical committee is reviewing it now. If the data checks out, payment approval will be completed before 4 p.m. Also, I recommend reserving 10% redundant bandwidth for concurrency peaks.

Lin Chen stared at the screen. Before 4 p.m. The operation would begin at two and was expected to take three hours. The timing just barely missed. He replied: Received. Redundancy plan has been incorporated into the architecture design.

Eleven o'clock. The anesthesiologist came for the final assessment. Auscultation, allergy history, confirmation of fasting time. Xiaoman obediently opened his mouth and raised his hand. Lin Chen stood outside the curtain, listening to the regular ticking of the equipment. After the painkiller's effect had fully worn off, the pain in his left leg had resurfaced, like fine needles stabbing into the gaps between bones. He shifted his stance and pressed his weight onto his right leg.

Twelve fifty. An orderly pushed a flat stretcher in. Xiaoman lay down and was covered with a blanket. The wheels rolled over the terrazzo floor with a faint friction sound. Lin Chen walked beside him, holding the medical record folder and preoperative documents. The corridor was long, the overhead lights a cold white. He looked at Xiaoman's profile; his younger brother's eyes were fixed on the ceiling, lips pressed into a thin line.

"Don't be afraid," Lin Chen said. His voice was not loud, but it was steady.

Xiaoman turned his head, glanced at him, and gave a soft "mm."

One ten. The family waiting area outside the operating room. The heavy metal doors slowly closed, cutting off the light and sound inside. The indicator lit up: In Surgery.

Lin Chen sat down on a plastic chair. The chair was hard, its backrest cold. He opened his phone and pulled up the backend monitoring page for the stress-test report. The real-time latency curve held steady around 75ms. Su Man sent a message: The capital side's technical consultant has accessed the sandbox environment. Full regression testing is running now.

He replied with Received.

One thirty-five. Footsteps came from the end of the corridor. The attending physician was not in surgical scrubs, only wearing a scrub suit, a tablet in his hand. He stopped in front of Lin Chen.

"Mr. Lin." The doctor's tone was calm, but his pace was faster than usual. "During the preoperative imaging review, we found that the vessel path on the medial temporal lobe is more complex than expected. There is a small artery beneath the abnormal discharge area, very shallow in position. If we dissect according to the original plan, the bleeding risk will increase. We have adjusted the plan: first perform electrophysiological mapping to confirm the boundary of the functional area before making the cut. The procedure may be extended by thirty to forty minutes. We need your signature."

Lin Chen took the tablet. On the screen was a new three-dimensional reconstruction, the vascular network winding like red vines around the gray matter. He looked at it for three seconds, then asked, "During mapping, how will anesthesia depth be controlled?"

"Light anesthesia with awake testing. The patient will be briefly conscious, but he won't feel pain. We need him to cooperate with naming and repetition tasks." The doctor looked at him. "This will increase his psychological stress. The family should be prepared."

Lin Chen nodded. He pressed his fingerprint onto the electronic signature field. The screen displayed Confirmed.

"Understood," he said. "Proceed with the new plan. Functional areas come first."

The doctor put away the tablet and turned back toward the operating room. The doors opened again, then closed. The indicator light stayed on.

Lin Chen leaned back against the chair. The hardness of the plastic pressed through his shirt and into his spine. He closed his eyes and slowed his breathing. The corridor was very quiet, with only the low hum from the air-conditioning vent. His phone screen went dark, and he pressed it awake again. The numbers on the monitoring page were still changing. The capital side's review, the blade on the operating table, his younger brother's breathing, the dull pain in his left leg. Every thread converged in this moment into a single fine line.

He did not need to choose.

He only needed to wait.

At 2:05, his phone suddenly vibrated. It was not Su Man, nor Zhao Qiming. It was a text message from the bank system: Your account ending in 8842 received a transfer of RMB 30000.00 at 14:05. Note: Old Li.

Lin Chen opened his eyes and stared at the string of digits. Thirty thousand. The deposit Chen Hao had advanced? An expedited fee Old Li had returned through process? Or something else? He opened the details. The note contained only two words: Backup funds.

His finger hovered above the screen, but he did not reply immediately. The corridor light cast a sharp shadow over his face. The operating-room doors remained tightly closed. The red glow of the indicator reflected on the metal surface like a slowly beating heart.

He locked the phone and placed it face down on his knees. The numbness in his left foot had already spread to the root of his thigh. He adjusted his sitting posture and looked again toward the closed doors.

The waiting continued.

And the next cut had already fallen.