201: Chapter 201 The Fusion of the Technology Tree: The Combination of Biology and Mechanics
The "sower" project was like a stone cast into a calm lake, stirring ripples through the upper echelons of the GDC and the core scientific research community. Although the blueprint was grand, when it came to the specific design and construction of each "seed of civilization," countless technical details loomed before them like towering mountains. Among these, the "ultra-long-range life support system" and "extreme environment adaptability" were of the utmost importance.
Traditional mechanical life support systems were reliable but complex, fragile, and required high maintenance; during lonely voyages that could easily last for centuries, the aging of a single seal or the failure of a single pump could cause the entire mission to fail. While pure ecological circulation systems were theoretically more self-consistent, they lacked stability and were overly sensitive to environmental fluctuations.
In his private laboratory in the "Ark" city, Lin Mo had thousands of technical route analysis reports regarding these two major challenges, compiled by the system, floating before him. His gaze did not linger on the improvement plans based on traditional mechanical engineering or closed ecology, but was instead drawn to a branch within the system's technology tree that had previously been rarely explored but was now glowing faintly.
That was a complex node located deep within the "civilization cornerstone" technology tree, which had interconnections with "Veins · Universal Healthcare" and "Root System · Efficient Agriculture and Ecological Restoration" — "Symbiotic Interface of Life and Machines." The node icon presented the form of a DNA double helix intertwined with precision gears, and the unlock requirements below were marked: "Requires 'Nanomedical Robot Technology,' 'Advanced Biomaterial Synthesis Technology,' and 'Neuro-Electronic Interface Technology' to reach a certain level, and the completion of specific fusion experiments."
"Symbiosis of life and machines..." Lin Mo muttered, his fingers subconsciously tapping on the virtual console. He recalled the stunning performance of the "Scavenger" nanorobots in precisely eliminating cancer cells, the environmental adaptation potential demonstrated by the "keystone-1 type" material, and the neural signal simulation technology that those near-perfect virtual sensory interactions in the "Kunlun" world relied upon.
A vague yet bold concept began to take shape in his mind.
Why must life systems and mechanical systems be strictly separated? Why couldn't they be like the human body itself, where muscles, bones, nerves, and various organs cooperate perfectly, possessing powerful self-repair, environmental adaptation, and redundancy capabilities?
If biotechnology and mechanical engineering were deeply integrated...
He immediately connected the communications to three locations.
The first was the Life Science and Medical Technology Research Center at the "Bright Dawn" base, where the image of Academician Shen Huaishan appeared instantly, with the busy "Scavenger" nanorobot culture tanks vaguely visible in the background.
The second was the Advanced Materials Synthesis Laboratory at the lunar "Guanghan Palace" base, where the holographic projection of chief materials scientist Dr. Han Qing appeared, with molecular structure models of various new materials floating beside her.
The third was the "Neural Simulation and Interaction Research Institute" under the "Kunlun" world architecture group, headed by a young female scientist with sharp eyes, Dr. Ye Lan.
"The three of you, I need you to temporarily set aside some of your current work and participate in a brand-new emergency joint research project." Lin Mo got straight to the point without pleasantries, "Project codename: 'pegasus' (the winged horse from Greek mythology, symbolizing crossing boundaries)."
He quickly outlined his preliminary concept of "deep life-machine integration" to solve the life support and adaptability problems of long-range interstellar voyages, and even to enhance the survivability of existing combat and engineering units.
Academician Shen was the first to react; he adjusted his glasses, his eyes shining with the light of academic inquiry: "Consultant Lin, do you mean... we no longer just use biotechnology for treatment or maintenance, but let it become a part of the system itself? For example, having the inner walls of the spaceship's life support pipes grow biological tissues with metabolic and repair functions? Or, having external sensors act like skin, capable of 'sensing' the environment and making adaptive changes?"
"Not just that." Lin Mo pulled up some conceptual sketches, "We can design a 'symbiotic framework.' The mechanical part provides a sturdy structure, efficient energy conversion, and powerful computing capabilities; while the integrated biological part provides self-repair, environmental material conversion (such as converting the interstellar dust collected by the spaceship or the soil of the target planet into nutrients), damage sensing and isolation, and even... limited morphological adaptation capabilities."
Dr. Han Qing stared at the sketches and quickly entered the zone: "From a materials perspective, this requires the development of a brand-new 'biocompatible smart substrate.' It must not only serve as the 'soil' and 'skeleton' for biological tissue attachment but also seamlessly connect with electronic circuits and mechanical transmissions, and be able to adjust its own physical properties—such as hardness, permeability, and thermal conductivity—based on the chemical or electrical signals fed back by the biological part. The field-effect materials we previously reverse-engineered from 'the piercer' might serve as a foundation, but it needs to be coupled with biological signals... This challenge is huge, but feasible!"
Dr. Ye Lan's focus was more minute: "The neural interface is the key. To let the biological part and the mechanical part 'talk,' we need a signal conversion protocol that is more fundamental and efficient than the immersive interfaces currently used by 'Kunlun.' Perhaps not simulating neural signals to deceive the brain, but establishing a true, bidirectional 'neuro-electronic synapse'? Allowing the electrochemical activity of biological cells to directly regulate chip logic, and allowing chip instructions to directly guide the growth and metabolism of biological tissue? My god... this is simply..."
She didn't finish her sentence, but the expression on her face said it all — this was a realm between science fiction and miracles, daunting, and even more incredibly exciting.
"I know this is difficult, an unprecedented cross-disciplinary fusion." Lin Mo said in a deep voice, his gaze sweeping over the three top scientists, "But this is also a peak we must climb to face the multiple unknown threats in the dark forest. The 'sower' needs it to ensure the resilience of the voyage; our soldiers and engineering units also need it to gain stronger survivability and mission flexibility. Think about it: a mecha that can slowly repair damage like a living creature; an engineering robot that can replenish itself using local resources like a plant; a spaceship whose hull can dynamically adjust its protective properties based on the radiation or particle streams it encounters..."
The three scientists all held their breath, stunned by the prospect Lin Mo painted. This was not just a technical upgrade; it was a revolution in design philosophy!
"I'm in!" Academician Shen was the first to commit, his voice slightly hoarse with excitement, "Medical nanorobots can be converted into more general 'biological construction and maintenance units'!"
"Leave the materials to me!" Dr. Han Qing's eyes were firm, "Give me the data and biological interface requirements, and I will lead the team to conquer the 'smart substrate'!"
Dr. Ye Lan took a deep breath: "The neural interface is the bottleneck and the core. We will do our best to push one step further from the simulation technology of 'Kunlun' and explore a true 'symbiotic dialogue' protocol."
"Good!" Lin Mo nodded heavily, "Establish the 'pegasus' project team immediately, with the three of you serving as joint chief scientists. You will have the highest priority for resource allocation, second only to the 'North Heaven Gate' defense plan and the 'sower' prototype ship project. I want you to produce a feasibility study and a preliminary laboratory prototype as soon as possible — even if it is just a tiny first step that can prove 'biological cells can grow directionally on a smart substrate and respond to simple electrical signals'!"
The project was launched with astonishing efficiency. The top teams in life sciences, materials science, and information science, which had originally operated independently, were forcibly integrated under the banner of "pegasus." At first, friction and conceptual conflicts were inevitable, but under Lin Mo's personal coordination and the powerful interdisciplinary simulation assistance of the system, ideas were quickly opened up, striking sparks of brilliance.
Just two weeks later, the first milestone "tiny first step" was born in the bio-mechanical joint laboratory at the "Bright Dawn" base.
On the laboratory bench lay a palm-sized, dark silver sheet of "smart substrate" (the preliminary result of Dr. Han Qing's team). The surface of the sheet was not smooth but had extremely fine microstructures mimicking the extracellular matrix. At this moment, in the center of the sheet, a small cluster of fibroblasts (provided by Academician Shen's team) that had been gene-edited to strengthen their division and directional attachment capabilities were slowly and orderly growing and spreading along the gullies on the substrate's surface under a specific nutrient solution and micro-current (the preliminary control signal designed by Dr. Ye Lan's team), forming an extremely thin, living "membrane."
Even more magically, when researchers applied a preset weak electrical pulse pattern through the micro-electrodes built into the substrate, the local metabolic activity of this biofilm would change and feed back a specific bio-electrical signal. And the system, through sensors connected to the substrate, successfully identified and interpreted this signal!
"It's a success! Biological tissue has achieved controlled growth and preliminary signal interaction on an artificial substrate!" Warm cheers erupted in the laboratory. This seemingly simple achievement proved beyond a doubt that the path of integrating the three major disciplines was feasible! A bridge of communication could be built between life and inorganic matter.
When the news reached Lin Mo, he gave high affirmation and requested that the next phase of experiments be launched immediately: trying to make this biofilm possess simple "functions," such as sensing specific chemical substances (simulating the spaceship detecting harmful gases), or secreting a substance to repair a tiny scratch deliberately made on the substrate (simulating the prototype of self-repair).
Meanwhile, the long-term application blueprint for the "pegasus" project also began to be refined.
The application for the "sower" was called the "life lining" system: cultivating a layer of functional symbiotic biological tissue on the spaceship's key life support pipes, storage bulkheads, and even the inside of some outer armor. They could actively regulate the micro-environment inside the cabin, recycle waste, repair tiny leaks, and maintain extremely low metabolism during long-term hibernation; once the probe arrived at the target star system and was activated, it could quickly restore functions to assist in establishing the initial base.
For military and engineering applications, two prototypes were initially conceived:
One was the "bio-enhanced exoskeleton/mecha." Inside the armor, a biological buffer layer and damage-sensing network were integrated, and key joints or vulnerable parts on the exterior were covered with bio-composite materials possessing limited regenerative capabilities. The pilot would be deeply connected to the mecha through a more advanced neural interface, not only gaining a more intuitive sense of control but also allowing the mecha itself to feed back damage information and external environmental data to the pilot in the form of "feelings."
The second was the "pioneer-bio version" engineering robot. Its mechanical body carried a small ecological reactor, which could synthesize basic nutrients using various organic or even inorganic substances to nourish the integrated biological tissue modules with specific functions on the ends of its mechanical arms or walking mechanisms. For example, "bio-high-energy tentacles" for welding or cutting, "bio-adsorption feet" for anchoring in complex terrain, and "biological sensor probes" for collecting and analyzing samples. They could work for long periods in resource-scarce environments and possessed a certain degree of self-maintenance capability.
These blueprints were full of imagination and also full of technical challenges. But the "pegasus" project team had already taken a solid first step, and the entire GDC's scientific research and development atmosphere was invigorated. A brand-new culture of integrated innovation that broke down disciplinary barriers was forming.
Just as Lin Mo was reviewing the next phase of the experiment plan for the "pegasus" project, the system's warning quietly appeared: At the edge of the Kuiper Belt, that rhythmically beating "gravitational pulse" signal, after continuously strengthening for several months, had for the first time appeared... a brief, approximately 0.3-second interruption.
After the interruption, the signal recovered, but its modulation frequency had undergone a subtle change that could be captured by the system.
It was as if... the source that had been "calling" or "locating" had finally received some kind of response and had therefore adjusted its own "tone."
Lin Mo's heart sank suddenly.
In the dark forest, the brief clamor between the hunters seemed to have come to an end.