Yun Mei's optimized protocol looked like a graph of someone having a panic attack.
She'd drawn it on the last page of her conclusions notebook, the blue ink tracing a jagged line that spiked and crashed and spiked again in rapid succession. Six peaks. Six valleys. Each peak representing a burst of high-intensity integration lasting eight to twelve seconds. Each valley representing a rest interval of four to six seconds. The entire session compressed into two minutes of aggressive oscillation, compared to the four-minute gradual climb of the standard protocol.
"The artifact's recording function needs approximately three seconds to synchronize with the substrate's processing state," she said. She was standing in the corridor with the notebook open, speaking to Wei Long, Latch, and Yue with the brisk efficiency of someone presenting results she'd verified three times and didn't intend to defend more than once. "During a standard integration session, the substrate enters a steady processing state within the first twenty seconds and maintains that state for the remainder of the session. The artifact synchronizes during the initial twenty seconds and then records continuously for the full duration. Every second of steady-state processing produces a corresponding micro-lattice deposit."
"The burst protocol prevents steady state," Latch said. He'd taken the notebook and was studying the graph.
"The burst protocol never allows the substrate to settle. Eight to twelve seconds of high-intensity processing, then a hard interrupt. The substrate drops to resting state. The artifact, which had been synchronizing with the active processing, loses its target. The recording function captures partial data from each burst — whatever it managed to encode during the eight to twelve seconds before the interrupt — but it never achieves full synchronization. The recording is fragmented. Incomplete. The micro-lattice deposits are smaller."
"How much smaller?"
"Based on the math, each burst should produce approximately fifty percent of the micro-lattice growth that the same processing time would produce in steady state. Six bursts of ten seconds each is sixty seconds of active processing. Sixty seconds at fifty percent recording rate equals the micro-lattice output of thirty seconds in steady state." She took the notebook back. "Compare that to the standard protocol: four minutes of steady-state processing producing four minutes of full-rate micro-lattice growth. The burst protocol delivers comparable integration gains in less time, with half the artifact overhead."
"Comparable integration gains," Wei Long said. "Not identical."
"The burst protocol drives harder during active periods. The neural load is higher. The substrate processes more intensely for shorter durations, compensating for the lost time during rest intervals. The integration gain per session should be slightly above the standard protocol's output because the high-intensity bursts push the substrate's processing architecture harder, producing more growth per second of active time." She closed the notebook. "The trade-off is physical. The oscillation between high load and rest is not something the body is designed for. It will be uncomfortable."
"How uncomfortable?"
"I don't know. Nobody has tried this before." She met his eyes with the flat honesty of a researcher who understood the difference between a theoretical model and a human body. "I know the math works. I don't know how you'll feel."
---
They set up the session at oh-seven-hundred. Latch on the wall, monitoring the substrate and the artifact simultaneously. Yue counting neural load through the bond. Yun Mei with her hands on a downstream section of tissue, measuring micro-lattice growth in the substrate through Latch's biological interface chain.
Wei Long pressed his palms to the junction wall. The fold's heartbeat. The substrate at thirty-five percent. The micro-lattice sitting inside his processing layer like a seed in soil, dormant between sessions, waiting for the substrate's activity to feed it.
"First burst on my count," Yue said. "Eight seconds. Then drop."
He waited.
"Go."
He pushed. Not the gradual escalation of the standard protocol. A hard shove into the substrate's processing architecture, driving the integration with the same intensity that the last seconds of a standard session achieved. Full power. Immediate.
Neural load: forty-six. Forty-seven. Forty-eight.
His body registered the spike the way it registered a sudden change in altitude. Pressure behind his eyes. The fold's dimensional awareness sharpening to a painful clarity, every node in the network suddenly defined in granular detail, every pathway visible, every lattice fragment measurable. The substrate's processing architecture operating at a level of intensity that the standard protocol reached only briefly before disconnecting.
"Drop."
He dropped. Cut the integration. The substrate crashed to resting state.
Neural load: twenty-two. Eighteen. Fifteen.
The transition was not smooth. The standard protocol eased in and eased out. The burst protocol threw a switch. His body went from sprinting to standing in less than a second, and the result was immediate: a band of pressure across his forehead, the kind of headache that arrived without warning and settled in like it planned to stay.
"Four seconds rest," Yue said. "Then burst two."
Four seconds. The headache established itself. His stomach turned over once, the nausea arriving with the casual timing of a guest who'd been invited to a party he didn't want to attend.
"Go."
He pushed again. Forty-six. Forty-eight. The substrate blazing through integration processing at full intensity, the Crown's architecture absorbing the fold's biological support at a rate that matched the peak output of a standard session sustained for seconds instead of minutes.
"Drop."
Fifteen. The headache doubled. The nausea became specific — not the general unease of a queasy stomach but the targeted rebellion of a body that was being whiplashed between two physiological states and objecting to the treatment. His hands trembled on the wall. Not from strain. From the oscillation itself, the nervous system trying to decide whether it was working or resting and failing to commit to either.
"Burst three. Go."
Forty-seven. The third burst was harder than the first two, the substrate's architecture protesting the rapid cycling between states. The integration pushed through the resistance. The numbers climbed. The fold's biological support adjusted to the burst pattern, the organism's mutualistic investment recalibrating in real time to match the bearer's altered processing rhythm.
"Drop."
Fourteen. His vision — the Crown's dimensional awareness — flickered. Not the fracturing of the feedback loop. A stutter. The processing layer struggling to maintain the dimensional perception during the rapid transition between active and resting states. For a quarter-second, the network disappeared from his awareness. Forty-one nodes gone, replaced by the flat nothing of a system rebooting. Then back. Everything sharp. Everything present.
"The stutter is normal," Yun Mei said from down the corridor. "The substrate's dimensional processing requires steady-state to maintain full awareness. During the rest intervals, the processing drops below the maintenance threshold for dimensional perception. The perception will recover within one to two seconds of each rest interval."
One to two seconds of blindness. Not his usual blindness — the physical darkness that the Crown's awareness had replaced. Total blindness. No dimensional perception. No network awareness. No fold heartbeat. Nothing.
"Continue?" Yue asked. The bond carried the question as an offer, not a suggestion. She would support either answer.
"Continue."
Bursts four, five, six. Each one slightly easier than the one before — the substrate's architecture adapting to the oscillation pattern, the processing overhead of the rapid transitions decreasing as the system learned the rhythm. Each rest interval slightly rougher — the headache compounding, the nausea peaking after burst five at a level that made Wei Long glad he hadn't eaten breakfast. The dimensional stutter persisted but shortened, the recovery time dropping from one-point-five seconds to point-eight by the sixth burst.
"Session complete," Yue said. "Disconnect."
He disconnected. Sat on the floor. The headache was lodged behind his right eye like a splinter. His hands were still trembling. The nausea receded slowly, the stomach rebellion losing enthusiasm now that the oscillation had stopped.
"Numbers," he said.
---
"Crown capacity: thirty-five-point-six percent." Yue's voice was measured. "Session gain: point-six percent. Compared to the standard protocol's point-five-five yesterday. The burst protocol delivered more integration in less time."
"Micro-lattice growth?" Wei Long turned toward Yun Mei.
The researcher's hands were on the wall. Reading. The measurement took longer than the session itself — the micro-lattice's dimensions inside the substrate were microscopic, the growth increment from a single session barely detectable, requiring Yun Mei's crystallographic precision to measure against the baseline she'd established yesterday.
"Point-one-five percent," she said. "Compared to the projected point-three percent for a standard session at this capacity level."
Half. The optimization had halved the artifact's growth rate. The math had worked. The burst protocol's rapid oscillation prevented the recording function from achieving full synchronization, producing fragmented micro-lattice deposits at fifty percent of the steady-state rate.
"Revised projections," Chen Bai said through the relay. The analyst had been tracking the numbers in real time. "Six remaining sessions to forty percent at the optimized growth rate. Total micro-lattice growth over those six sessions: approximately point-nine percent additional. Current micro-lattice: two-point-one-five percent. Projected total at forty percent: three-point-zero-five percent."
"Effective capacity at forty percent: thirty-six-point-nine-five percent," Yue completed. "Call it thirty-seven."
"Thirty-seven," Chen Bai repeated. "The clearance threshold is thirty-eight. We're half a percent short."
Half a percent. The margin between success and failure had narrowed from four percent to half a percent. The optimization had bought them ground — significant ground — but not enough. Thirty-seven against a threshold of thirty-eight.
"Can the protocol be further optimized?" Chen Bai asked.
"The burst duration and rest interval are already near their limits," Yun Mei said. "Shorter bursts produce less integration per cycle. Longer rest intervals reduce total processing time. The current parameters are the sweet spot." She paused. "The protocol could be adjusted to seven bursts instead of six, adding one additional cycle. That would increase integration gain per session and might reduce the number of sessions needed to reach forty percent, which reduces total micro-lattice growth."
"What does the seventh burst cost?"
"Higher cumulative neural load. More physical stress. Longer recovery time between sessions." She looked at Wei Long. The researcher's eyes taking in the trembling hands, the headache he couldn't hide, the careful way he was holding himself against the nausea. "The body's tolerance for the oscillation has limits. Six bursts approached those limits today. Seven may exceed them."
"Tomorrow," Wei Long said. "We try seven tomorrow. If the body adapts to six the way it adapted during today's session, seven might be manageable by day two."
"Might."
"Might is better than short."
---
Latch's report on the eleven-percent fold came at fourteen-hundred, after the afternoon's targeted conduit.
"Eleven-point-three percent."
The number arrived through the relay in Latch's steady biological precision, the elder's hands on the wall, his bond reading the distant node's health with the same attention he gave every measurement.
"Up from eleven-point-two yesterday," Chen Bai noted. His pen recorded the number in the daily tracking. "The recovery trajectory is accelerating. The targeted conduit protocol is delivering more effective maintenance per session than the broad-spectrum conduits ever did, even before the pathway absorption was discovered."
"Because the communicative band energy arrives without losses," Latch said. "Zero pathway absorption. Every unit of energy we send reaches the fold. And the fold's biology, once it adapted to processing communicative-band energy for metabolic function, became more efficient at the conversion than my initial estimates projected."
"How much more efficient?"
"The conversion efficiency is approximately forty-seven percent now, up from the initial forty percent." Latch's voice carried something that might have been satisfaction if the elder permitted himself such things. "The fold is learning to use what we're giving it. The same way the substrate adapts to the burst protocol, the fold's biology adapts to the communicative-band maintenance. The efficiency will continue to improve."
"Projection for the twelve-percent stability threshold?"
"At current rates, the eleven-percent fold reaches twelve percent in approximately eight to ten days. Once it crosses twelve percent, the fold's own regenerative systems begin contributing to recovery. The compounding effect begins. After that, the fold's improvement accelerates independently of the conduits."
Eight to ten days. The same window as the Crown reaching forty percent. The same convergence point where everything met — the clearance, the record reading, the bridge transit, the wellspring intervention. And now, if the math held, the eleven-percent fold crossing the stability threshold where it could begin healing itself.
"One thing going right," Yue said through the bond. The statement was quiet. Almost private. The lunar spirit acknowledging the small victory without overstating it.
Wei Long pressed his forehead against the wall. The headache from the morning's burst session had faded to a dull pressure, manageable, the kind of discomfort that became background noise if you let it. The nausea was gone. His hands had stopped trembling an hour ago.
Six bursts had been survivable. Seven might be survivable. The micro-lattice growth rate had been halved. The eleven-percent fold was recovering. The targeted conduit worked. The detection thresholds were mapped. The lattice encoding was nearly complete.
Everything was working. Everything was also not quite enough. The margins were razor-thin, the tolerances measured in fractions of a percent, the difference between a plan that succeeded and one that collapsed balanced on variables that nobody could fully control.
Half a percent short of the clearance threshold. The distance between thirty-seven and thirty-eight. The gap that six more days of optimized sessions might close if the body held, if the protocol adapted, if the micro-lattice growth rate dropped another fraction, if some variable they hadn't identified swung in their favor.
If. The smallest word in any language, carrying more weight than the whole network.
Latch was still reading the eleven-percent fold's recovery data. The elder's hands steady on the wall, the three-thousand-year-old cultivator performing the routine maintenance monitoring that kept the distant node alive while the bearer's team scrambled to solve problems that multiplied faster than they could be catalogued.
"Tomorrow," Wei Long said. "Seven bursts."
"Tomorrow," Latch confirmed.
The fold's heartbeat pulsed against Wei Long's forehead. Fifty per minute. Patient. The organism waiting for its bearer to become strong enough to do what needed doing, growing its crystal, transmitting its garbled message, nurturing the partnership with the same steady investment it had maintained since the day the Crown's architecture first touched its biology.
Half a percent. They'd find it somewhere. They had to.
Because the fold was counting on them, and folds, Wei Long was learning, counted in centuries.
