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This article explores how an unprecedented stock market boom in South Korea during the first half of 2026, driven by the semiconductor industry, is transforming the lives of ordinary people, particularly the youth. The KOSPI index doubled in six months, fueled by giants Samsung and SK Hynix, leading to a frenzy of retail investing. With over 105 million stock accounts in a population of just over 50 million, a sense of "FOMO" (fear of missing out) is pervasive. Through the perspective of Li Yuning, a Chinese woman living in Seoul, the piece follows several young Koreans who see the market as a last chance to escape stifling economic pressures, high housing costs, and narrow social mobility. Individuals like Minji, a low-paid office worker, and Junho, saving for marriage, invest their limited savings, while experienced traders like Suhu navigate exclusive social circles. The narrative reveals that this speculative fever stems less from greed and more from deep-seated anxiety about being left behind in a society with growing wealth inequality and rigid class structures. However, the boom also exposes stark social divides. It exacerbates wealth gaps, as those with family support or existing capital fare better. The pressure to succeed is immense, with stories of devastating losses leading to personal tragedy. Ultimately, the article suggests the牛市 acts as a pressure valve and a temporary illusion of opportunity in a system where traditional paths to advancement seem increasingly closed, leaving young people to gamble on the market as a final, desperate bid for a better future.

South Korea is experiencing an unprecedented stock market boom in the first half of 2026, with the KOSPI index doubling in six months, driven primarily by tech giants Samsung Electronics and SK Hynix. This "epic bull run," tied to the semiconductor cycle, has sparked a nationwide frenzy for stock trading. The country, with a population of just over 50 million, now has over 105 million securities accounts. The article, from the perspective of a Chinese national living in Seoul, explores how this speculative fever reflects deeper societal anxieties among Korean youth. Facing stagnant wages, high costs of living, housing pressures, and rigid social stratification, many young people see the volatile market as a "last chance" to alter their predetermined life trajectories and escape financial precarity. Stories include a young office worker investing her meager savings, a couple delaying marriage due to financial pressures, and a seasoned trader navigating exclusive social circles where market information is currency. However, the boom also exposes and exacerbates existing inequalities. While some achieve windfalls, others face devastating losses, with borrowing to invest reaching record highs. The narrative contrasts the illusion of equal opportunity with the harsh reality that the ability to absorb risk is unevenly distributed. Ultimately, the market frenzy is portrayed not as a solution, but as a symptom of a generation's struggle against a system offering limited upward mobility, where daily life is a precarious balance of bills, debts, and societal expectations.

KIOXIA, a NAND flash memory giant, staged a dramatic comeback driven by AI demand. After a period of significant losses, a failed merger, and missed HBM opportunities, its 2024 IPO began modestly. However, fueled by explosive demand for AI data storage, its stock price skyrocketed over 50 times within 18 months, making it Japan's most valuable company, surpassing Toyota. Its Q1 FY2026 profit guidance soared 30-fold year-over-year, with 2026 NAND capacity already sold out. Key to its success is its 3D NAND technology, BiCS FLASH. As the inventor of NAND, KIOXIA advanced its technology through generations, reaching over 200 layers by 2023. Key innovations include CBA (CMOS directly Bonded to Array), which separately manufactures control circuits and memory arrays for better performance, and OPS (On Pitch Select Gate) to increase density. The company is now developing high-capacity packages like an 8TB solution stacking 32 dies. Looking beyond NAND, KIOXIA is exploring 3D DRAM with its OCTRAM technology, using oxide semiconductor transistors for ultra-low leakage to reduce power consumption. This fundamental research differs from HBM and represents a long-term bet to extend its 3D expertise from NAND into future DRAM architectures. KIOXIA's story highlights how technological assets and shifting market cycles can rapidly transform a company's fortunes. While questions remain about sustaining growth beyond the current AI boom, its resurgence demonstrates that in semiconductors, being down does not necessarily mean being out.

The Ethereum Foundation (EF) has announced a major organizational restructuring, involving a 20% staff reduction (approx. 54 employees) and a division into functional clusters like Protocol, Access, User, Community, and Institutional layers. Co-founder Vitalik Buterin further revealed plans to cut the EF's budget by around 40% over the coming years, aiming to reduce its annual spending rate from about 15% to roughly 5% by 2030, transitioning to an endowment-driven model. This overhaul is seen as a long-overdue correction to the EF's ambiguous role. As Ethereum grew, the foundation faced persistent criticism over ETH sales, perceived lack of execution, and unclear strategy, often becoming a focal point for community frustration amid ETH's price stagnation. The reform aims to redefine the EF's boundaries, narrowing its focus to core protocol research, public goods funding, and ecosystem coordination, while offloading more applied development work to the broader market. Concurrently, ecosystem forces like the newly formed Ethlabs (founded by ex-EF researchers) and other independent groups are stepping in to fill the space, signaling a shift from a centralized model to a more distributed, collaborative ecosystem structure. The move was notably praised by Solana co-founder toly, who viewed a "leaner" EF as potentially more decisive and agile.

In just 11 days, Bun's founder Jarred Sumner used Anthropic's Claude AI models to rewrite its million lines of code from Zig to Rust. This move sparked significant controversy, particularly from Zig's creator, Andrew Kelley, who publicly criticized Sumner's engineering practices and the decision to use AI for such a massive rewrite. Bun, a high-performance JavaScript/TypeScript runtime and rival to Node.js, was originally written in Zig. After Anthropic acquired Bun, the team encountered persistent stability and memory safety bugs in the Zig codebase. These issues, combined with Zig's strict policy against LLM-generated code, led to the decision to rewrite in Rust. The rewrite was executed using Claude AI tools at an estimated API cost of $165,000, dramatically reducing the expected time and financial cost. Andrew Kelley's response was scathing. He blamed the original bugs on poor engineering habits, calling Bun's Zig code a collection of "hacks on top of hacks." He expressed relief that Bun was no longer associated with Zig, fearing it would misrepresent the language and attract low-quality, AI-generated contributions. The tech community is divided; some view Kelley's critique as unprofessional, while others see it as a defense of engineering integrity. A major concern about the AI-driven rewrite is the resulting code quality. The translation from Zig left approximately 27,000 lines of unsafe Rust code, raising fears about long-term maintainability and technical debt. The debate centers on whether this project is a milestone in AI-assisted development or a future maintenance nightmare.