Yanwen’s blog

January 19, 2025

The growing likelihood of a TikTok ban in America has triggered an intriguing phenomenon: the rise of RedNote, a new platform now home to a wave of “TikTok refugees” — a term coined by users who have migrated to this app.  

How long RedNote will be allowed to stay and thrive in America before potentially facing similar fate is uncertain. However, one thing is clear: innovation and adaptation are unstoppable. As the Chinese saying goes, “凡墙皆有门” (fán qiáng jiē yǒu mén) — "Every wall has a door." For every obstacle, there is a solution, embodying the spirit of resilience and resourcefulness.  

This same mindset is also evident in China’s groundbreaking achievements in decarbonization. While global powers debate strategies, China is taking actions and leaping ahead, setting new standards in renewable energy and clean technology. Here are five areas where China is leaving the rest of the world behind:

1. Solar Energy Installations

- Between January and October 2024, China added 181.3 gigawatts (GW) of new photovoltaic (PV) capacity, with 20.42 GW installed in October alone.

- By August 2024, its cumulative PV capacity reached a staggering 770 GW, outpacing most countries by orders of magnitude. 

China's dominance in solar energy highlights its commitment to scaling renewable infrastructure. From constructing record-breaking solar farms in remote deserts to seamlessly integrating them into the grid, China’s industrial might and efficiency are unrivaled.

2. Ultra-High Voltage (UHV) Transmission Lines or A Bullet Train for Power

China's “West-to-East Power Transmission” initiative, covered by BBC, exemplifies innovation at scale. With over 48,000 km of UHV lines crisscrossing the nation, this advanced grid moves renewable energy from sparsely populated western deserts to bustling eastern megacities. These power highways, akin to bullet trains for electricity, solve one of the toughest challenges of renewable energy: efficient long-distance transmission.

3. Electric Vehicle (EV) Revolution  

- In 2024, China’s new energy vehicle (NEV) sales jumped 40%, reaching nearly 11 million units.

- November alone saw 1.3 million EVs sold, marking the third consecutive month of record-breaking sales.

With EVs making up over half of monthly car sales, China is transforming its transportation landscape. This surge is powered by government incentives, competitive domestic manufacturing, and a growing environmental consciousness among consumers.

4. Declining Gasoline Consumption

China’s embrace of EVs is reshaping its energy consumption profile. The transition is already reducing gasoline demand, accelerating the nation’s shift from fossil fuels to cleaner energy.

5. Long-Term Decarbonization Plans

China's ability to deliver on its decarbonization goals stems from a unique blend of central planning, industrial policy, and unwavering political commitment. Unlike countries hindered by short-term political cycles, China's vision spans decades, enabling consistent execution of big goals and projects.

While other nations are locked in words, China exemplifies action, proving that decisive governance and industrial innovation can overcome even the toughest challenges like global warming. The combination of bold vision, advanced technology, and relentless determination positions China as a leader in the global race toward a cleaner future.

January 18, 2025

Across Chinese social media, the buzz about Xiaohongshu (Little Red Book or RedNote) is unmistakable. This phenomenon has even captured the attention of American mainstream media like AP, CBS, Business Insider and many more.

It began with the potential U.S. Supreme Court ban on TikTok, prompting users to seek alternatives. While many speculated what might replace TikTok, few anticipated that Xiaohongshu would become a top choice.

By January 15, 2025, Xiaohongshu topped the Apple App Store’s free download charts in 87 countries, including the U.S., U.K., and Australia. Over 700,000 users joined the platform in just two days, calling themselves “TikTok refugees.”

Challenges for Xiaohongshu   Despite its rapid growth, Xiaohongshu faces significant hurdles:  

1. Cultural Fit: Many foreign users struggle to connect without local audiences or friends familiar with their content.

2. Infrastructure: Time zone differences, language barriers, and increased moderation demands test the platform’s capabilities.

3. Retention: Whether users stay long-term or treat Xiaohongshu as a temporary TikTok protest remains uncertain.

4. American government: of course the biggest elephant in the room is the US government. How long can people enjoy the Little Red Book before it meets the same fate as TikTok? 

Opportunities for Growth

1. Global Appeal: Some foreign influencers have discovered Xiaohongshu’s “traffic codes” and are already thriving on this new platform.  

2. Cultural Exchange: on a positive side, Xiaohongshu could connect global audiences, east and west, enhance mutual understanding, and transcend geopolitical rivals.

3. Travel and Lifestyle Hub: The platform’s focus on beauty, lifestyle, and travel offers unique opportunities for creators and promise a potential tourism interest in China.

The Big Irony

One of the biggest ironies of this shift is that, when faced with the TikTok ban because it's Chinese-owned, many users turned not to American platforms like Meta or Instagram but to another Chinese-owned app at the risk of another ban. This choice implies possible explanations:

1. Function Over Politics: Users prioritize a platform’s experience over its ownership or geopolitical implications.  

2. Rejection of American Alternatives: they turn away from American-owned platforms like Meta, Instagram, and YouTube, and choose Xiaohongshu symbolizing their protest against government ban.  

The Uncertain Future

The future of Xiaohongshu as a global platform hinges on the wisdom of American politicians, XHS’s ability to adapt and integrate its international audience. Will it sustain its momentum, or is this surge merely a fleeting trend?

At its core, every social platform—be it TikTok, Xiaohongshu, or even WeChat—thrives on connections, that is, our friend or family circle. The question is: do these TikTok refugees have friends on Xiaohongshu? Once the initial excitement wanes, what will they post? Without a supportive friend-circle or engaged community, will they stay, or drift back to familiar platforms like Meta or Instagram?

That said, some foreign influencers are likely to thrive during this wave. By mastering Xiaohongshu’s “traffic secrets”—such as adopting Chinese names, showcasing an appreciation for Chinese food and culture, speaking Mandarin, or performing Chinese songs—they’re already building followings. These influencers may find long-term success, transforming Xiaohongshu into a platform for new commercial ventures.

For now, Xiaohongshu offers a fascinating glimpse into the evolving social media landscape. Whether you’re a “TikTok refugee” or a Xiaohongshu native, this moment underscores the dynamic interplay of culture, technology, politics, and user choice.

So, enjoy the memes, the cultural exchanges, and the surprises that this new digital era promises to bring—one post at a time.

January 17, 2025

The other day, I saw two young boys pushing open the door to the YWCA swimming pool just as an elderly couple was exiting. The boys noticed the seniors but walked through without holding the door for them. It seems these boys were never taught the simple courtesy of holding a door for others, especially on respecting the elderly. I’ve long believed that anything good children know is taught to them, while anything bad they learn on their own.

During my daily video chat with my mother on January 12, 2025, she mentioned an exciting piece of news: the world’s first carbon fiber subway train had been launched in Qingdao. I've never heard of this. Curious, I looked it up and learned more about this groundbreaking development.

The "CETROVO 1.0 Carbon Star Express," developed by CRRC Qingdao Sifang Co., Ltd., began commercial operation on Qingdao Metro Line 1. Here are some of its standout features:

1. Innovative Material Use:    The train’s main load-bearing structures, including the body and bogie frame, are made of carbon fiber composite materials, marking the first global commercial application of carbon fiber in subway vehicles.

2. Lightweight Design:     Compared to traditional metal, carbon fiber offers the advantages of being lightweight, high-strength, fatigue-resistant, and corrosion-resistant. Carbon fiber reduces the train’s overall weight by 11%. The car body is 25% lighter, and the bogie frame is 50% lighter than traditional metal materials.

3. Energy Efficiency and Environmental Benefits:   The reduced weight cuts energy consumption by 7% during operation. Each train prevents 130 tons of carbon dioxide emissions annually, equivalent to planting 101 acres of forest. This aligns with sustainable transportation goals by minimizing energy use and emissions.

4. Cost-Effectiveness:   Advanced materials and technology lower lifecycle maintenance costs by 22%.

5. Technological Advancement:   The train represents a breakthrough in lightweight rail vehicle technology, addressing the limitations of traditional metal structures and driving progress in the carbon fiber materials industry.

The launch of the "CETROVO 1.0 Carbon Star Express" sets a new standard for sustainable, energy-efficient public transportation. With its innovative use of carbon fiber materials, the train also sets a new standard for responsible environmental stewardship, and technological advancement. Reducing weight by 11%, cutting carbon emissions by 130 tons annually, and lowering maintenance costs by 22% show a future where progress, economy and sustainability go hand in hand.

This breakthrough reminds us of the Chinese saying, “青出于蓝而胜于蓝” (Qīng chū yú lán ér shèng yú lán), means: Indigo blue is extracted from the indigo plant, but it surpasses the plant in brilliance. Like this train, humanity's greatest innovations often come from rethinking the materials and methods of the past, creating something that transcends its origins. The "Carbon Star Express" is a symbol of what can be achieved when a country combines ingenuity and a commitment to sustainability.

1/16/2025

Recently, I experienced an epiphany that gave the classic Chinese fable "Yu Gong Moving Mountains" (愚公移山) a new and personal significance.

In the original story, Yu Gong, an elderly man nearing 90, lived in a village blocked by two enormous mountains that hindered his family and community. Determined to remove the obstacles, Yu Gong began digging through the mountains with the help of his family. Progress was slow, but he persisted, believing that if he couldn’t complete the task in his lifetime, his descendants would continue. A neighbor mocked his efforts, but Yu Gong remained undeterred. Eventually, his perseverance moved the gods, who sent divine beings to carry away the mountains, clearing the path for the village.

Traditionally, this story teaches us the value of determination, perseverance, hard work, and faith in achieving what seems impossible, no matter how daunting the challenge.

Last weekend, as I chatted with my children, a fresh interpretation came to me: When you persist in pursuing something you truly believe is worth it, your relentless efforts will eventually “move the gods” and bring you what you've pursued. This I have personally experienced.

This brings me to a fascinating innovation in agriculture that embodies the spirit of perseverance and creative problem-solving: using Chinese mitten-handed crabs (Eriocheir sinensis) as an eco-friendly pest control solution.

These crabs are proving to be a game-changer in sustainable farming. Farmers in China have integrated mitten-handed crabs into rice paddies, creating a symbiotic system that benefits both the crabs and the rice plants. The crabs help control pests, manage weeds, and fertilize the soil with their waste, while the rice paddies provide shelter and protection for the crabs.

Dual Yields and Eco-Friendly Farming 

This innovative approach leads to dual yields, with farmers harvesting both rice and crabs. Reports show that farmers can produce 300-450 kilograms of crabs per hectare alongside their rice harvest.

In addition to boosting agricultural output, this method minimizes the need for chemical pesticides. By acting as natural pest controllers, the crabs improve water quality, promote healthier ecosystems, and yield safer, more sustainable food products.

Challenges in Implementation

Despite its benefits, the method does pose some challenges. Farmers must carefully balance the needs of the crabs and the rice plants. For example:

Water Management: While crabs require constant aquatic conditions, rice paddies occasionally need to dry.  

Furthermore, introducing mitten-handed crabs into non-native regions requires caution and monitoring to prevent unintended ecological disruptions.

Broader Implications

This innovation has profound implications for agriculture and sustainability:

1. Sustainability in Agriculture    By reducing chemical inputs in soil and fostering biodiversity, this approach aligns with global goals for sustainable farming. It demonstrates how natural pest management can boost healthy yields while protecting the environment.

2. Economic Opportunities    Farmers benefit from diversified income streams, selling both rice and crabs. As consumers increasingly demand sustainably produced healthy food, this method can command premium prices.

3. Scalability and Precautions     While promising, the technique must be adapted carefully in non-native regions, with controlled trials and ecological monitoring to ensure its long-term viability.

Finally, the crab-rice symbiotic system exemplifies how innovation, when paired with ecological principles, can address complex agricultural challenges. Like Yu Gong’s unrelenting effort to move mountains, this method reflects the power of perseverance and ingenuity to overcome obstacles and pave the way for a better future.

By blending productivity with responsible environmental stewardship, this approach sets a compelling precedent for sustainable farming. With creativity and determination, even the most daunting challenges can lead to transformative solutions.

1/15/2025

Lately, the freezing cold in New York has taken me back to my childhood winters in elementary school in Tianjin. I vividly remember sitting in a classroom with a coal stove near the door, struggling to keep warm. My hands and feet felt like ice, and I spent much of the class stamping my feet and rubbing my hands just to fight off the chill. It was the 1960s, and those winters were brutally cold—miserably so. I talked to my children about this. They really have no idea that back then, even simple comforts, like effective heating, were luxuries.

Fast forward to today, and it's exciting to see how far we've come. The world’s first “trackless train,” introduced in Zhuzhou, Hunan, represents the kind of forward-thinking innovation that not only tackles present challenges but also reshapes the future. This groundbreaking development has significant implications for urban transportation, sustainability, and infrastructure.

Why Is the Trackless Train Revolutionary?  Their main features include:

1. Blending Transport Modes:     By combining the best features of buses, trams, and metro systems, the trackless train offers unparalleled flexibility without the infrastructure-intensive demands of traditional rail systems.

2. Cost Efficiency:     Traditional railways require significant investment in tracks, signaling systems, and ongoing maintenance. The trackless train eliminates the need for tracks, reducing both installation and upkeep costs while providing comparable passenger capacity.

3. Eco-Friendly Technology:     Fully electric and equipped with rapid-charging capabilities, the system supports global efforts to reduce carbon emissions and fosters sustainable urban development.

4. Modular Capacity:     With adjustable carriages capable of carrying up to 500 passengers, the trackless train is scalable to meet the demands of different cities, from high-density urban areas to smaller communities.

5. Precision Navigation:     Utilizing advanced sensor technology and pre-mapped routes, the system ensures precise, automated navigation, enhancing both safety and operational efficiency.

Broader Global Implications  

Transforming Urban Mobility:     The trackless train offers a practical, scalable solution for cities with growing populations and constrained budgets. It can be implemented more quickly and with fewer barriers than traditional metro or light rail systems.

Reducing Carbon Footprints:     As cities transition to greener transportation, the trackless train serves as an eco-friendly alternative to diesel buses and conventional rail systems, supporting a sustainable future.

Potential for Global Adoption:     While the technology developed in China, it holds immense potential for worldwide application. Cities in regions such as India, Southeast Asia, and Africa—where infrastructure challenges are significant—stand to benefit greatly.

Flexibility in Infrastructure Planning:     Unlike traditional rail systems, the trackless train doesn’t rely on fixed tracks, making it adaptable to changing urban layouts and evolving transportation needs. This flexibility is particularly valuable for rapidly developing cities or those undergoing urban renewal.

Setting New Public Transit Standards:     If adopted globally, the trackless train could establish a new benchmark for public transportation systems, inspiring innovation in automation, renewable energy, and urban planning.  

Challenges and Considerations  

First of all, the success of the trackless train will depend on how effectively it integrates with established transit networks and urban infrastructure. While China’s centralized planning facilitates such projects, other nations may face challenges due to differing regulatory frameworks, political systems, and funding constraints. 

A Game-Changer for Cities Worldwide

The trackless train has the potential to revolutionize urban mobility, particularly in cities with limited budgets or infrastructure. Its eco-friendly, cost-effective, and scalable design makes it a promising alternative to traditional systems. 

This innovation exemplifies pragmatic, forward-thinking solutions for urban challenges and sets a compelling precedent for the future of sustainable transport. Most importantly, it highlights the potential to democratize access to high-quality public transportation, empowering cities to prioritize connectivity and sustainability for all.