Chapter 257: Awakening and Thresholds

2:20 a.m. The corridor lights seemed a shade dimmer than before. Lin Chen lowered his phone brightness to the minimum, his fingertips sliding over the touchpad. In the terminal window, the build progress bar for the hotfix/latency_opt_v4 branch was stuck at 67%. The memory-leak warning popped up twice, and he suppressed it manually both times. He needed to change the feature-vector cache from synchronous blocking to asynchronous nonblocking, but lock contention in the concurrent queue would introduce a new latency spike.

The red light outside the operating room was still on. No sound came through. The heavy metal door was like a silent partition, separating life and death from code into two different worlds. Lin Chen adjusted his posture. The numbness in his left leg had already climbed past his knee and turned into a heavy, dull swelling. He reached down and rubbed the muscles along the outside of his thigh, his fingertips meeting the coarse fabric of his jeans. The pain nerves protested sluggishly, but he did not move away. When he finished rubbing, his hand returned to the keyboard.

2:45 a.m. The build completed. He entered the stress-test command. The curves on the screen began to climb. Initial latency: 142 ms. Memory usage: 1.8 GB. Queue backlog. He stared at the monitoring panel, his finger hovering over the Enter key. It was not an algorithm problem. The underlying scheduling strategy was incompatible with the existing framework. He needed to bypass the standard library's thread pool and write a lightweight coroutine scheduler himself. There was not enough time. A rewrite would take at least six hours.

He closed his eyes and slowed his breathing. In his mind, the memory-allocation diagram Professor Zhou had drawn on the university blackboard surfaced: pointers, stack, heap, defragmentation. Real code overlapped with chalk dust on a blackboard. He opened his eyes and created a new file. No scheduler rewrite. Change the direction of the data flow instead. Preload high-frequency feature vectors into a shared-memory region, and replace the dynamic queue with a ring buffer. Sacrifice part of the memory ceiling in exchange for read-write speed.

3:10 a.m. Code committed. Su Man's avatar flashed in the messaging app. Received. Sandbox environment reset. Starting full run.

Lin Chen did not reply. He leaned back in the chair, his eyes resting on the digital clock above the operating-room door. The numbers jumped in silence. 3:20. 3:35. From the far end of the corridor came the sound of a cart's wheels; a family member from the next ward was fetching water. Life went on in its fixed, trivial rhythm. He lowered his eyes to the screen. The stress-test curve was swinging violently. Latency oscillated between 110 ms and 130 ms. The read and write pointers in the ring buffer had slipped out of alignment. He quickly located the log file and found that during a burst of concurrent requests, buffer overflow had caused data truncation. He added boundary checks, reallocated the memory blocks, and committed again.

4:05 a.m. His phone vibrated. An internal call from the attending doctor. Lin Chen answered.

"Mr. Lin, the awakening test has started. The patient is conscious and can follow instructions. We are confirming the boundaries of the functional areas. Bleeding is under control for now." The doctor's voice came through the receiver with the faint rustle of surgical clothing.

"Has the language area been affected?" Lin Chen asked.

"Stable for now. We'll do our best to preserve Broca's area. Keep your phone available. If naming impairment appears during the test, we'll adjust the resection margin."

"Understood." Lin Chen hung up. He looked down at the screen. The stress-test curve began to fall. 105 ms. 98 ms. 91 ms. Memory usage was stable at 2.1 GB. Still on the edge of the threshold. He stared at the number, his fingers unconsciously rubbing the seam of his trousers. A spasm in his left leg suddenly intensified; the muscle jerked once beyond his control. He clenched his back teeth, shifted his weight entirely onto his right leg, and kept typing with his right hand. Adjust garbage-collection frequency. Lower background-thread priority. Enter.

4:20 a.m. The curve continued downward. 88 ms. Memory: 2.05 GB. Still 8 ms short. He checked the network I/O module and found that the serialization protocol was using default JSON; parsing overhead was too high. Switch to Protobuf. Repackage. Stress test.

4:50 a.m. Latency: 79 ms. Memory: 1.88 GB. Target met.

Lin Chen let out a long breath. The air in his chest felt as if it had been drained away and then poured back in. He leaned against the chair and closed his eyes. Cold sweat had soaked through the back of his shirt and stuck to the plastic seat. He took out his phone, exported the stress-test report as a PDF, attached the optimization notes and architecture diagram, and tapped Send. Recipient: Zhao Qiming. CC: Su Man, Technical Committee.

Sent successfully. The time read 16:52.

The operating-room door remained tightly shut. The red light was piercing. Lin Chen placed the phone on his knees, screen down. He did not need to look at the reply immediately. The report had been submitted; the rest belonged to their review process. Now he only needed to wait for the door to open.

5:10 a.m. Footsteps sounded in the corridor. Not the doctor, but a nurse. She pushed an instrument cart to the operating-room entrance, swiped her card, opened the door, and went in. Through the gap leaked a line of cold white light and the regular ticking of instruments. Lin Chen stood. A stab of pain shot through his left leg as it touched the floor. He steadied himself against the wall, then slowly walked back to the chair and sat down.

5:45 a.m. The door opened.

The attending doctor came out, removed his mask, and wore obvious exhaustion on his face. He walked up to Lin Chen and handed over an initial postoperative record.

"The surgery is over. The abnormal discharge area has been removed, and the boundary is clear. The blood vessels were handled cleanly, and bleeding was less than expected. During the awakening test, the patient could accurately name an apple, a cup, and a key. Language function has been fully preserved." The doctor paused. "But the postoperative edema period has not passed. Temporal-lobe surgery causes a relatively strong reaction. The next forty-eight hours are the danger window. Intracranial pressure may rise, so he needs close monitoring. If vomiting, drowsiness, or limb convulsions occur, call us immediately."

Lin Chen took the record. The paper was very thin, the handwriting neat. He read it twice and nodded. "Understood. I'll keep an eye on the monitor data. What do you need from the family?"

"Keep things quiet and avoid emotional stimulation. After the patient wakes, he may have brief memory confusion or fear. That's normal. Stay with him and let him know where he is." The doctor patted his shoulder and turned toward the nurses' station.

Lin Chen stood where he was. The edge of the record paper cut slightly into his hand. He folded it and placed it in the folder. 5:50. His phone screen lit up. Zhao Qiming's reply: Stress-test data reviewed. Latency meets target; architecture is sound. Capital-side technical consultants have no objections. Payment process has advanced to final finance review, expected to arrive tomorrow. Also, at 2 p.m. next Wednesday, the Series A lead investor requires an on-site demonstration of the core chain. Prepare the sandbox environment and backup server in advance.

Next Wednesday. Two o'clock.

Lin Chen stared at that line. Xiaoman's forty-eight-hour postoperative monitoring period would run right up to Wednesday morning. The afternoon demonstration meant he had to switch between the hospital and the company. No buffer. He replied: Received. Demo environment is ready.

He did not ask whether it could be rescheduled. A capital party's calendar would not make way for one person's family emergency. That was the rule. He had understood it long ago.

6:20 a.m. The gurney rolled out of the operating room. Xiaoman lay on it, thick gauze wrapped around his head and an oxygen tube in his nose. His face was pale, but his breathing was steady. The anesthesia had not fully worn off; his eyes were half closed. Lin Chen followed and took one side handle of the gurney. The wheels rolled softly over the floor. He looked down at his younger brother's face; a little shaved scalp showed at the edge of the gauze. He reached out and gently pulled the slipping thin quilt higher.

"Ge..." Xiaoman's lips moved. His voice was blurred, hoarse after the anesthesia.

"I'm here," Lin Chen said. His voice was not loud, but it was close.

Xiaoman's eyes slowly focused. He looked at him once, then closed them again. His fingers curled unconsciously. Lin Chen held that hand. The fingertips were cold, but the pulse was beating. Once, then once again. Steady.

6:45 a.m. He was transferred to the transitional ward outside the ICU. The monitor was connected and the parameters set. Lin Chen sat on the attendant's chair beside the bed. The chair was softer than the one in the corridor, but still hard. He opened his phone and brought up the monitor's real-time data sync page. Heart rate 72, blood oxygen 98%, intracranial-pressure probe in place, values fluctuating within the normal range.

He leaned back and closed his eyes. The pain in his left leg had ebbed, becoming a long, lingering soreness. His stomach felt frighteningly empty, but he did not move. The 35.3 yuan balance had long since been swallowed by the expenses of the past few days. The 30,000 yuan in "reserve" money was still in the account, untouched. That was the bottom line left for Xiaoman's later rehabilitation and medication. Touching it meant touching their retreat path.

His phone vibrated again. A message from Su Man: Zhao's side passed. The demo is set for next Wednesday. I'll run the whole chain again on my end and make sure the sandbox environment is stable. You... take care of your family first.

Lin Chen opened his eyes. The screen's light was harsh in the dim ward. He replied with two words: Received.

He put down the phone and looked at the green waveform jumping on the monitor. Beep. Beep. Beep. The rhythm was steady. Outside the window, the sky had gone completely dark; city neon filtered through the blinds and cut several parallel bands of light across the wall.

He reached into his bag and took out the dog-eared copy of Fundamentals of Electronic Information Experiments, turning to the page marked by the bookmark. He was not reading code, but the circuit schematics in the appendix. The lines were orderly, the logic strict. The chaos of reality could always find order on a diagram.

After reading for a while, he closed the book. He rested his left leg lightly over his right, avoiding the injured area. His breathing slowed.

The waiting continued. But the blade had fallen, and the bleeding had stopped. The next forty-eight hours would be a tug-of-war between edema and compensation. And next Wednesday's demonstration would be a wager between capital and product.

He did not need to choose. He only needed to keep both lines clenched in his hands.

In the ticking of the monitor, he closed his eyes. Tomorrow, there would be new code to write, new medicine to change, new accounts to settle.

That was how days went: sliced forward one cut at a time. When the cutting was done, you walked on.