42: Chapter 42 Silent Mathematics

On the third underground level of the Xichang Satellite Observation Center, the windowless room was bathed in cold, blue-white light.

Lin Shen stood before the holographic projection table, surrounded by six floating light screens. The three on the left displayed the raw waveform data transmitted back by guanghan-1, while the three on the right showed the signal reconstruction after being filtered through three different algorithms. On the central main screen, a string of constantly changing mathematical expressions was evolving on its own.

"This is the complete record for the past seventy-two hours."

The speaker was a young woman with black-rimmed glasses, Chen Xuan, the team leader of the Moon Palace project's signal processing group. She wore a white research uniform with a small coffee stain on the cuff, but her fingers moved across the control interface with startling speed.

"We initially thought the signal was random background noise, until Academician Li Weimin reminded us to compare it with the genetic coding logic of the pandora virus." Chen Xuan pulled up a set of comparison charts. "Look here—the non-transcribed segments of the viral gene, the arrangement pattern of these repetitive sequences."

She tapped the air, and two sets of data unfolded side by side. On the left was the viral gene sequence fragment, and on the right was the spectral analysis of the lunar signal.

"They use the same mathematical language." Lin Shen understood.

"More accurately, it's the same 'information compression algorithm'." Chen Xuan's voice carried the excitement of a researcher discovering treasure. "It's like how English and French both use Latin letters, but the words they form are different. The 'alphabet' here is a set of basic fractal functions, and the 'words' are iterative combinations of these functions."

She magnified one of the signal fragments. Upon magnification, the waveform revealed a fine self-similar structure—large waveforms nested with smaller ones, and within the smaller waveforms were even more subtle repetitive patterns, much like how a coastline maintains similar twists and turns at every scale.

"Fractal encoding," Lin Shen whispered. "A method of information storage that is theoretically extremely high in density and possesses natural error-correction capabilities. But current human technology cannot yet stably generate fractal structures of this level."

"And it is responding to us." Chen Xuan switched to timeline mode.

On the light screen, the green pulses representing the active detection by guanghan-1 corresponded one-to-one with the red waveforms representing the response from the void. After every green pulse, the red waveform would appear 23 seconds later, and the waveform structure was related to the type of detection pulse: low-frequency scans yielded simple fractal iterations, while high-frequency pulses triggered complex multi-scale responses.

"It is learning," Lin Shen said. "The initial responses were very rough, like a baby's babbling. But this most recent one—" He pointed to a set of data from three hours ago, "Look here, it has started to imitate the modulation style of our detection pulses, and has even added its own 'variations' to the response."

Chen Xuan nodded and pulled up another set of analysis results: "What's even stranger is the energy source. To produce a signal of this level, the void would need a continuous energy input of at least kilowatt levels. But the thermal imaging from guanghan-1 shows that the temperature inside the void is only 0.3 degrees higher than the surrounding lunar soil, which completely defies the law of conservation of energy."

"Unless the energy isn't coming from the inside," Lin Shen suddenly said. "Su Ting, pull up the spacetime curvature monitoring data near the L2 point. I need the high-frequency sampling from the last twenty-four hours."

Su Ting, who was standing at the door, quickly operated the terminal. A few minutes later, a new set of waveforms covered the main screen.

"This is..." Chen Xuan pushed up her glasses.

"Weak fluctuations in spacetime itself." Lin Shen pointed to the curvature changes on the screen that were almost perfectly synchronized with the lunar signal. "The energy isn't generated from inside the void, but is 'borrowed' from the spacetime structure. The signal is a byproduct of spacetime ripples, just like the air fluctuations caused by vocal cord vibrations when speaking—the sound is the main product, but your throat also heats up slightly."

The room was quiet for a few seconds.

"This means," Chen Xuan's voice was a bit dry, "that the 'thing' in the void isn't transmitting signals, but is... adjusting the local spacetime structure? And what we detected are just the 'aftershocks' produced by this adjustment?"

Lin Shen did not answer directly. He pulled up the interface of the technology tree system—of course, only he could see it. Among the dense branches of light, he found a dim node: [Primary Spacetime Structure Manipulation Technology]. Below the node was a line of small text: "Prerequisites: Master gravitational wave detection precision to the 10^-23 magnitude; understand the principles of vacuum zero-point energy extraction; complete the construction of large-scale quantum entanglement arrays."

Humanity hadn't achieved any of these three items yet.

But the ruins on the Moon had clearly already mastered them.

"Team Leader Chen," Lin Shen turned to Chen Xuan, "If we are to have a more complex exchange with this 'thing', what signal should we send next?"

Chen Xuan was stunned: "You mean... an active dialogue?"

"Since it is learning, we will teach it." Lin Shen walked over to the console and pulled up the graphical representation of basic mathematical functions. "Start with the simplest. Send a sequence of prime numbers, then the Fibonacci sequence, and then Euler's formula. Send them using fractal encoding, and leave thirty seconds after each transmission to wait for a response."

"If it can truly understand..."

"Then we will know what level of existence we are dealing with."

Two hours later, in the top-floor conference room of the Xichang Observation Center.

There were very few people attending this meeting, only Lin Shen, Chen Xuan, Academician Li Weimin, and an elderly man in military uniform who had flown in overnight from Longcheng—the Vice Chairman of the Strategic Science Committee, General Liu.

"So the current conclusions are," General Liu said after listening to the report, his fingers tapping slowly on the desktop, "First, the ruins inside the lunar south pole void possess some form of 'active intelligence'; second, this intelligence is rapidly learning how to interact with human probes; third, its technological foundation involves the direct manipulation of spacetime structures, a level far exceeding current human technology."

"At least three hundred years ahead of us," Li Weimin added, "if estimated using a linear development model."

"But a linear model might not be applicable," Lin Shen interjected. "The technology tree system shows that there are 'leap points' in technological development. For example, moving from chemical rockets to nuclear fusion propulsion is one leap, and from classical computing to quantum computing is another. Once a certain critical knowledge threshold is broken, a civilization might skip across several technological levels in a very short time."

He pulled up another page: "I just had 'Nuwa' simulate the technological path implied by the signals from the ruins. If the analysis is correct, this civilization may have skipped the 'energy revolution' phase we are currently undergoing and jumped directly from Controlled Nuclear Fusion to vacuum zero-point energy extraction. Their fundamental physical models might be fundamentally different from ours."

General Liu was silent for half a minute. Outside the window, the giant towers of the Xichang launch site were lit up in the night, and a vermilion bird-1A rocket was undergoing its final pre-launch checks.

"Comrade Lin Shen," he finally spoke, "you previously suggested adjusting the payload of the kuafu probe to add spacetime curvature monitoring equipment. Now, I approve this adjustment and grant you greater authority—starting today, the kuafu project is merged into the 'Zhulong · Extension' plan, and you will be fully responsible for the technical direction."

He paused, his tone becoming extremely serious: "But I require you to answer one question: If we establish stable communication with the lunar ruins, what is the worst-case scenario?"

The room was quiet enough to hear the hum of the air conditioning vent.

"The worst-case scenario," Lin Shen said slowly, "is that it 'wakes up'."

"Wakes up?"

"An entity capable of manipulating spacetime structures—if it truly possesses intelligence, then the only reason it is sleeping at the lunar south pole is that it chose to sleep." Lin Shen looked at the Moon outside the window, that silvery-white disk rising to the zenith. "Perhaps it is waiting for certain conditions: a specific frequency of signal, a specific energy input, or... a visitor of a specific civilization level."

"And the Imperial Alliance's 'Zeus Station' might become the one that presses the wake-up button." Li Weimin understood.

"More accurately, the detection equipment carried by Zeus Station might unconsciously send out 'incorrect' signals." Lin Shen pulled up the payload manifest released by the Empire. "Look here—to detect water ice beneath the lunar soil, they have equipped high-power ground-penetrating radar. The radar's operating frequency is between 300 MHz and 1 GHz, and this frequency band overlaps with certain harmonic components of the signals from the ruins."

Chen Xuan quickly calculated: "If the radar beam shines directly into the void, the energy flux will reach more than a thousand times that of our current active detection pulses."

"It's like hitting a sleeping bell with a hammer," General Liu said, "while we are only stroking it with a feather."

He stood up, walked to the window, and turned his back to the room: "Lin Shen, if we were to disclose the existence of the ruins and the potential risks to the international community now, and demand that the Imperial Alliance cancel or postpone the Zeus Station mission, what is the success rate?"

Lin Shen smiled bitterly: "Close to zero. First, we have no concrete evidence that the ruins are dangerous—current findings can all be explained as natural phenomena or ancient geological activity. Second, the Imperial Alliance is pushing full force for the 'Starry Sky Firewall', portraying the Dragon Kingdom as a threat attempting to monopolize space resources. At this time, if we issue a lunar danger warning, it will only be interpreted as an excuse to stop them from landing. Third..."

He paused for a moment: "Third, if the ruins truly hold knowledge that transcends current human technology, then whichever country makes contact with it first could obtain the key to the next technological revolution. In the face of such temptation, no one will listen to voices warning of risks."

"So we must establish some kind of... contact with the ruins before the Zeus Station?" Chen Xuan asked, "At least an understanding that allows us to predict its reactions?"

"And we must also prepare for the worst." General Liu turned around, his eyes sharp. "Lin Shen, I want you to come up with a 'Lunar Emergency Response Plan' within thirty days. If the ruins are accidentally activated, if it shows hostility, if it begins to affect Earth—we must have at least three different levels of countermeasures."

"Even if those measures look like fighting an interstellar warship with bows and arrows?" Li Weimin asked softly.

"Even if it's bows and arrows," General Liu nodded, "at least we must learn to shoot the arrows."

At 11:00 PM, the signal transmission order was issued.

guanghan-1 adjusted its antenna angle, aiming at the dark void twelve kilometers below. The transmission power was cautiously set to the lowest level, and the pulse duration was precisely controlled at the millisecond level.

First transmission: 2, 3, 5, 7, 11, 13—the first six prime numbers, using fractal encoding.

Thirty seconds of waiting.

The void responded. On the waveform chart, a response signal that perfectly reproduced the prime number sequence appeared, but after 13, it actively added a number—17.

"It knows the rules of the prime number sequence," Chen Xuan whispered.

Second transmission: The first eight terms of the Fibonacci sequence.

The response was equally perfect and appended the next term.

Third transmission: The graphical expression of Euler's formula—that beautiful equation connecting the natural constant e, the imaginary unit i, the circle constant π, and the number 1.

This time, the void was silent for a full two minutes.

Then, it responded with an entirely new fractal pattern.

Chen Xuan's team spent twenty minutes analyzing that pattern. When the result appeared on the screen, everyone was stunned.

It was a three-dimensional coordinate: a point in the Solar System's ecliptic coordinate system, located in the asteroid belt between Mars and Jupiter.

No, not a specific asteroid.

It was a... void in that region.

A spacetime anomaly with the same mathematical characteristics as the lunar void, but a thousand times larger in scale.

"It is telling us," Lin Shen stared at those coordinates, feeling a chill rise up his spine, "that it is not the only one."

And just then, Su Ting rushed into the control room, holding newly decrypted emergency intelligence.

"The Imperial Alliance's launch plan has changed. The Zeus Station lander will be launched early in forty hours aboard the 'ares-7' heavy rocket. The reason given is 'to seize the optimal detection window'."

She paused, her voice becoming tighter: "And, they just updated the landing site coordinates. The new coordinates are only thirty-two kilometers away from our target void."

Thirty-two kilometers.

For an entity capable of adjusting spacetime structures, this was no different from being face-to-face.

Lin Shen looked at the screen, where the coordinates from deep within the Moon were still blinking quietly. Between Mars and Jupiter, another "Silent One" was waiting.

And humanity was about to strike the first bell in the rudest way possible.