Twilight Xiuxiu stands in the holographic projection room on the top floor of the String Light Institute, gazing out of the window at the setting sun that is gradually sinking into the horizon. The afterglow passed through the special glass and plated her silver-white hair with a soft golden glow. Her fingers gently brushed the edge of the console, where a line of small words almost flattened by the years was engraved: "Light, there should be no borders, but the lithography machine has." This is what she said when she submitted her resignation in the Netherlands when she was young, and it is now half a century ago.
The young assistant of the research institute tapped on the door and sent a beautifully stamped invitation. "Academician Xiuxiu, the International Science and Technology Foundation wishes to establish the 'Xiuxiu Award' in your name, in recognition of scientists around the world who have made breakthrough contributions in the field of precision manufacturing. The assistant's voice was overwhelmingly excited," This is the first international engineering award named after a Chinese person so far. "
Xiuxiu takes the invitation and fingertips stay on the raised bronze font for a moment. Her gaze crossed the paper, as if she had seen herself staying up in the ASML laboratory decades ago to debug the optical system, the young engineer who secretly wiped away tears on the plane home, and the team leader who stayed alone in the laboratory until dawn after the failure of the DUV light source attack.
"Decline for me. Xiuxiu handed the invitation back with a quiet voice.
The assistant was stunned, "But... this is a great honor, an affirmation of your life's work..."
Xiuxiu shook his head slightly, and there was an imperceptible smile on the corner of his mouth. "Honor is for the living, and technology is for future generations." She turned to the holographic projection table and woke up the system with her fingers tapping in the air. "I'm more concerned that in 50 years, in 100 years, no one can do anything more extreme than High NA EUV."
A complex optical roadmap emerges on the holographic projector, a project she has been conceiving recently - not a new lithography machine, not a new chip, but a new way of inheriting knowledge.
Over the next few months, Xiuxiu practically confined herself to the lab. She declined all interviews, awards and public appearances, and even Mozi could only talk to her briefly by video call. The once capitalist crocodile is now gray-haired, and he asks worriedly at the other end of the screen, "Xiuxiu, what impossible task are you challenging?"
Xiuxiu smiled and adjusted the camera angle so that Mozi could see the huge data stream behind her. "I'm designing a game."
"Game?" Mozi raised his eyebrows and suddenly realized, "Just like Yue 'er turned mathematical proof into an interactive simulation system?"
"Similar, but more... in-depth. Xiuxiu's fingers flew on the console, and the holographic image changed accordingly." I want to turn the lithography machine design, no, the entire knowledge system of precision engineering, into an evolving challenge. "
Named the "Creator Challenge" by Xiuxiu, the project is essentially an adaptive learning and creation platform. But it is very different from traditional educational software or engineering design tools, and its core is not to impart known knowledge, but to stimulate unknown creativity.
The platform's infrastructure incorporates the essence of Xiuxiu's decades of engineering practice. She designed a virtual laboratory based on physical reality, where every optical element, every mechanical structure, and every control system obeys the real laws of physics. Users are free to design, assemble and test a wide range of precision instruments in this virtual space, from the simplest microscopes to sophisticated lithography machines.
But the real innovation of the platform is its "adaptive engine." The core algorithm of this engine is derived from Yue 'er's early research on complexity theory. After Xiuxiu's transformation, it can adjust the difficulty and direction of the challenge according to the user's performance. Rather than simply giving a "right" or "wrong" judgment, it allows users to discover design flaws and optimization possibilities themselves by simulating real-world physical feedback.
"Traditional engineering education is too focused on standard answers. In an exchange with young engineers, Xiuxiu explains," But in real R&D, the most valuable things are the 'mistakes' that deviate from the norm. I want to create a space where people can make mistakes safely and learn from their failures rather than imitating their predecessors. "
Another key feature of the platform is its "evolutionary mechanism." Each user's operation, design, and thinking process on the platform is recorded anonymously and processed to become a self-evolving nourishment for the platform. New challenges, new physical models, and new design ideas will emerge from the collective wisdom of users around the world, making the platform itself a growing and changing "living system".
Xiuxiu pays special attention to protecting users' creative autonomy. She is adamantly opposed to having so-called "best practices" or "standard solutions" built into the platform. Instead, she devised a complex set of incentives to reward explorers who pioneered entirely new paths, even if their designs were "inefficient" or "impractical" in the traditional sense.
"I remember when we developed the infiltrating lithography, everyone said that it was whimsical. Xiuxiu said to the development team," If there was an authoritative system that told us' this is impossible 'at that time, maybe we would have given up. Real innovation is often born out of a departure from the norm. "
On a technical level, Xiuxiu breaks down her lifelong accumulation of knowledge into millions of interconnected "conceptual nodes." But this knowledge is not presented in textbook form, but is hidden in the platform's physics engine, material properties, and environmental variables. It is through hands-on practice that users gradually come to understand the true meaning of this knowledge.
For example, the platform will not directly tell the user "the relationship between the radius of curvature of the high numerical aperture lens and the resolution", but will set a series of challenges for the user to find this relationship after trying different designs with different radii of curvature. This discovery-based approach to learning is far more profound and enduring than the direct imparting of knowledge.
In order to test the effectiveness of the platform, Xiuxiu invited young people from different backgrounds from all over the world to participate in the internal test. Among them is a young girl from Africa, who has never been exposed to a real lithography machine, but has designed a nano-assembly method based on acoustic wave manipulation on the platform, and a young artist from northern Europe, who combines optical principles with visual art to create a new holographic display technology.
Looking at the works of these young people, Xiuxiu's eyes shone with relief. "This is the legacy I want," she told Mozi, "not to copy my path, but to carve out their own."
In the final stage of platform development, Xiuxiu added a special module - "The Way of Origin". This module is not a tutorial level, but rather an immersive historical experience. Users can choose to play the role of engineers in different eras and experience the key breakthroughs in the history of lithography technology.
You can become an engineer at the end of the 20th century, facing the dilemma of wavelength limitation, try various methods to break through the diffraction limit; you can become a researcher at the beginning of the 21st century, adhering to your own judgment in the controversy of immersive technology; you can become a pioneer of EUV technology, facing a series of seemingly unsolvable problems such as insufficient power, thermal deformation, defect detection, etc.
Each scene is reconstructed based on real historical data, but Xiuxiu deliberately obscures specific people and institutions. What she wanted to convey was not individual heroism, but the inner logic of technological breakthroughs and the power of collective intelligence.
"In this module, failure is just as important as success. Xiuxiu wrote in the design document," I want users to feel that behind every historic breakthrough, there are countless attempts, failures, and attempts. Tenacity is more important than talent. "
On the day that the platform was officially launched, Xiuxiu did not hold a grand launch. She simply posted a link to the platform and a short phrase on her homepage: "For all who want to create."
To everyone's surprise, the platform, which has not undergone any commercial promotion, has attracted millions of users around the world in just a few months. From professional engineers to amateurs, from college students to middle school students, all kinds of people explore, create, fail, and try again in this virtual space.
What moves Xiuxiu the most is the way users interact with each other. There are no leaderboards on the platform, no points competition, instead a challenge mechanism based on cooperation. Users can form teams to jointly solve complex problems; review each other's designs and provide constructive feedback; and recreate based on the works of others to form an "evolutionary tree" of knowledge.
"Look at this," Xiuxiu showed Mozi and Yue 'er one night by video a recent project on the platform, "a sixteen-year-old Brazilian girl has devised a new method of plasma control based on our public EUV light source data. Her approach is much simpler than our approach back then."
Yue 'er smiled across the screen, her eyes still as clear as they had been decades ago. "That's what you want, isn't it? Not followers, but transcendent."
Mozi nodded, "You're not creating a tool, you're creating an ecosystem."
In the last years of his life, Xiuxiu has been silently observing the evolution of the platform. She watched users solve puzzles she hadn't been able to solve that year, she watched technology paths she had never imagined open up, and she watched a global community of creators spontaneously form.
She declined all suggestions to name the platform after herself or any of its features. When the users of the platform spontaneously organized and wanted to erect a virtual monument for Xiuxiu, she politely declined.
"My name doesn't matter," she said in her last public interview, "what matters is the young people who find their way through this platform. They are the seeds of the future."
A week before Xiuxiu's death, she completed her last update to the platform. She hides a short video message from the platform's highest level challenge, the Creator's Mystery clearance reward.
In the video, the elderly Xiuxiu sits in her favorite laboratory chair, with the vast starry sky outside the window behind her. Her voice was calm and warm:
"If you see this message, you have come a long way and seen the joys and hardships of creation. I want to tell you that all my achievements - those lithography machines, those chips, those technological breakthroughs - the whole point of their existence is so that you can stand on my shoulders and see the landscape further away."
She paused for a moment, her eyes flashed with complex emotions, both relieved and expectant.
"Now, please forget my name. For from this moment on, the story of creation will be entirely yours - yours."
The video ends here, no signatures, no dates, just Xiuxiu's fading smile.
After Xiuxiu's death, according to her wishes, no grand funeral was held. Her ashes were scattered into the "light moss" forest around the String Light Institute - the silicon-based-protein complex life form she co-founded with Yue 'er in her later years.
And across the globe, countless young people have found their way through the Creator Challenge platform, honoring the unwilling pioneer in their own way. Instead of building statues or prizes, they continue to create, to explore, to push the boundaries of knowledge into the unknown.
As Xiuxiu hoped, her name was gradually forgotten, but the fire of creation that she lit was passed on in the hands of countless people, and it burned more and more. In a parallel server, the "Creator Challenge" platform is still evolving itself, constantly generating new challenges, inspiring new ideas, and breeding new breakthroughs.
This is a silent inheritance, a continuation of life beyond the individual. In his own way, Xiuxiu integrated the short life into the long creation epic of human civilization, becoming a soft and tenacious light in the never-extinguishing string light.