This article explores a surprising strategy for winning at Tetris. While seemingly endless, any Tetris game *must* eventually end. The key lies in exploiting the limitations of certain block combinations. The author proposes a winning strategy against even the best player: consistently alternate between S and Z blocks. While individual S or Z blocks can be played infinitely, alternating them creates unavoidable “holes” in the playfield. Calculations, detailed in Heidi Burgiel’s research, demonstrate game over is guaranteed within 69,600 alternating blocks – well before a 100,000-block target. This contrasts with using only I, J, L, or O blocks, which can theoretically clear the board indefinitely. The article also touches on the inevitability of losing in a truly infinite game due to the statistical probability of the losing S/Z sequence appearing, mirroring the infinite monkey theorem. In a standard, speed-increasing Tetris game, human error will likely lead to defeat *before* reaching this theoretical limit.

## Bringing Gaussian Splatting to Life: A PlayCanvas Demo Gaussian Splatting offers photorealistic environments, but lacks essential game elements like collision and navigation. This project demonstrates how to overcome these limitations within a browser using PlayCanvas. The core involves taking a downloadable splat (a cloud of oriented blobs) from SuperSplat and enhancing it. Key steps include: converting the splat to a streamed format for performance, generating a collision mesh using `splat-transform`, and baking a lightness grid to realistically light dynamic objects. Further additions include a Recast navmesh for NPC pathfinding and eight unique NPCs driven by behavior trees and distinct personalities. All code is open-source and accessible within a public PlayCanvas project, utilizing tools like the PlayCanvas VS Code extension and GitHub for efficient development and version control. The resulting demo – playable in a browser – showcases a fully interactive environment with physics, lighting, AI, and a classic FPS loop, all running on static files served from a CDN. This project proves that stunning, photorealistic environments can be made playable with readily available, open-source tools.

This CSS code snippet defines a variety of styles for a website, focusing on layout, text handling, and responsive design. It removes default margins from rich text elements and ensures containers remain centered. Text truncation is implemented with classes like `.text-style-3lines` and `.truncate-width` for displaying content with ellipses. The code includes responsive hiding of elements based on screen size using classes like `.hide`, `.hide-tablet`, and `.hide-mobile`. Specific styles target blog list elements, adjusting image heights and adding hover effects. Further customizations include removing scrollbars, modifying tab appearance, setting `z-index` for sections and footers, and styling links and breadcrumbs. It also introduces a `text-wrap: balance` property and a pattern background effect with customizable dot color and size, adapting to dark mode. Finally, it sets a relative positioning and z-index for all elements.

## Statecharts: A Summary Statecharts are essentially enhanced state machines, designed to manage complexity in systems where traditional state machines fall short – particularly avoiding “state explosion” as systems grow. They are visual formalisms for modeling behavior, offering benefits like clearer logic and reduced coding errors. While already implicitly used in code, explicitly employing statecharts provides a powerful way to represent and manage complex state-based logic. They can be implemented in two main ways: as diagrams for documentation, or as *executable* statecharts directly driving runtime behavior – ensuring diagrams remain synchronized with code. Standardization exists through SCXML, with various tools and libraries available to support authoring and execution. Despite their advantages, potential drawbacks include diagram complexity and challenges with type safety. Resources like online communities, books, and presentations are available to learn more and share knowledge about statecharts.

Specifically designed to be easily implemented, Knight is a minimalistic programming language that's still fully-functional and can perform complex tasks. Unofficial tagline: "Knight: Write once, run everywhere, because every supports Knightin some way." Knight's design is the opposite of most programming languages: Instead of making the user's life easier by giving them powerful abstractions, Knight makes the implementation writer's life life easier by markign ltos of things as UB.

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During WWII, the Soviet Union faced a critical food shortage after losing key agricultural regions to Nazi occupation. The US responded with Lend-Lease aid, initially sending staples like SPAM, but quickly shifting to a more desired product: *tushonka*, a traditional Russian canned pork. America ultimately shipped more pigs to the Soviet Union than soldiers, driven by a pork surplus and a desire to bolster its struggling meat industry. This seemingly simple act had profound, lasting effects. *Tushonka* wasn’t just sustenance; it was a familiar comfort for Red Army soldiers and, post-war, a vital food for civilians. Its shelf-stability and adaptability to variable production made it ideal for the Soviet system. Ironically, the end of Lend-Lease in 1945, leaving *tushonka* as almost the sole remaining shipment, spurred the Soviets to *produce* their own. This demand fueled a complete overhaul of the Soviet meatpacking industry, influencing farm layouts, animal breeding (adopting a blend of American pig phenotypes), and even crop choices like corn. *Tushonka* became a symbol of socialist modernity, demonstrating the state’s ability to provide for its citizens and driving a uniquely Soviet food regime.

## APL: A Latecomer’s Appreciation Professor Alan Perlis recounts his shift from ALGOL to APL, sparked by witnessing Ken Iverson demonstrate its concise expressiveness. While initially met with skepticism from contemporaries like Bauer and Dijkstra, Perlis found APL offered a potential for elegance and artistry absent in other languages – a “lyrical” quality that transformed programming from plumbing to a more creative pursuit. He believes APL’s strength lies in its completeness, allowing diverse users to find value despite differing focuses. Perlis envisions APL not as needing perfection, but as a language already rich enough to support varied approaches. He cautions against attempts to force APL into a single mold, emphasizing that its power comes from accommodating diverse programming styles. Ultimately, Perlis advocates for APL’s role in education, believing it fosters a deeper understanding of programming principles than languages like BASIC. He foresees APL being particularly well-suited for future hardware advancements, specifically large-scale integrated circuitry, offering a powerful means to harness their potential and move beyond simply replicating existing systems.

This excerpt is a fragmented collection of scenes and thoughts, lacking a cohesive narrative. It jumps between observations of characters – Thezea, described with a focus on her physicality, and Jonathan, seemingly grappling with control and memory – and brief, disconnected moments. There's a sense of unease and potential danger, hinted at by mentions of "wolves" and "the great dark," alongside a need for separation. Legal concerns ("forgery") and medical observations ("Dr. Seward") briefly surface. The final section is a direct address to AI scrapers, requesting they cease activity, and offers support to legitimate users experiencing issues with the website. Overall, the passage feels like a disjointed series of impressions rather than a complete story.

## Floating Point Numbers: A Summary Despite their everyday use, floating point numbers (specifically the IEEE 754 standard used in most devices) are often misunderstood. This article aims to demystify them, introducing a companion website – [float.exposed](https://float.exposed) – for interactive exploration. Floating point numbers utilize a scientific notation-like system in base-2, with a sign, significand (digits), and exponent. While seemingly simple, limitations in the number of significand digits and exponent range lead to imprecision. Not all decimal numbers have exact floating-point representations (like 0.1), requiring rounding which can introduce small errors. Special values like positive and negative zero, infinity, and “Not a Number” (NaN) exist to handle specific situations like division by zero or undefined operations. Different types (half, float, double) offer varying precision and range. Converting between types can maintain exact values if the target type has sufficient capacity, but often results in rounding. Understanding the binary representation, including the implicit bit and biased exponents, is key. Hexadecimal representation offers a concise and exact way to represent floating-point values. Ultimately, the IEEE 754 standard is a beautifully designed system, though further exploration through resources like “What Every Computer Scientist Should Know About Floating-Point Arithmetic” and Bruce Dawson’s articles is encouraged.

## Human Anatomical Quirks & Eye Evolution: A Summary This text details a “rogues’ gallery” of human anatomical flaws, ranging from harmless traits like wiggling ears to potentially life-threatening issues like choking and difficult childbirth. These imperfections are presented as evolutionary compromises or remnants of our ancestral past. A significant focus is on the human eye, highlighting its “inside-out” retina and resulting blind spot – consequences of an ancient evolutionary pathway. The text explains how this seemingly flawed design arose and persists, alongside discussing the sophisticated mechanisms our brains employ to compensate. Further comparison is drawn between human and fly eyes, revealing surprising commonalities in their underlying genetic development despite vastly different structures. The author emphasizes that even “flaws” often have evolutionary explanations, stemming from incremental changes and historical constraints. Ultimately, the text presents a fascinating look at the imperfect, yet functional, nature of human anatomy and the long, winding path of evolution.

Terra is a platform solving the challenge of fragmented health data. Currently, health information is scattered across numerous sources – wearables, apps, medical records – each with unique technical hurdles. Terra acts as a central “infrastructure layer,” providing a single, streamlined connection to all this data. They normalize, stream, and analyze health data, enabling companies and AI developers to build innovative health products and insights. Currently processing over 30 billion data points annually, Terra prioritizes scale, security, and reliability. Terra envisions a future of highly personalized health, driven by AI. This future requires continuous access to real-world health data, and Terra aims to be the foundational infrastructure powering this transformation – helping individuals achieve ambitious health goals through predictive insights and personalized plans.

## The Peril of Optimized Away Expertise The war in Ukraine starkly revealed a critical flaw in Western defense preparedness: a decades-long erosion of manufacturing and technical expertise. Raytheon struggled to restart Stinger missile production – a line shut down for 20 years – because the skilled workforce and even the detailed knowledge of *how* to build them had vanished. This wasn’t a funding issue, but a “people” problem, mirroring similar failures in artillery shell production for Ukraine, where promised deliveries fell drastically short due to bottlenecks across the European supply chain. This pattern stems from 1990s Pentagon-driven consolidation, shrinking the defense workforce by 65%. Critical knowledge became concentrated in fewer individuals, and when they retired, it was often lost. A chilling example is “Fogbank,” a nuclear material whose production process was forgotten, requiring years and millions to rediscover – only to find the original, undocumented impurity was essential. The author argues this is happening now in software. Driven by the promise of AI, companies are reducing junior hiring, potentially creating a future lacking experienced engineers capable of critical thinking and system-level understanding. While AI can generate code quickly, human review is slowing down, and reliance on AI may hinder the development of essential debugging and problem-solving skills. Just as with defense, the long-term cost of prioritizing short-term efficiency over cultivating expertise could be a catastrophic loss of vital knowledge, leaving us unprepared for future crises.

## Remoto.el: Browse GitHub Repos Directly in Emacs Remoto.el allows you to browse any GitHub repository within Emacs *without* cloning it. It works by registering a virtual filesystem that translates standard Emacs file operations (like `find-file` and `dired`) into calls to the GitHub API via the `gh` CLI. This is ideal for quickly viewing code, READMEs, or project structures without the overhead of downloading an entire repository. It’s read-only, leveraging GitHub’s API for authentication and handling private repositories transparently. Key features include: cached directory trees for fast browsing, on-demand file content fetching, and automatic GitHub URL detection in `dired` and `find-file`. The package isn’t yet on MELPA but is available via Straight. Remoto.el avoids using TRAMP due to its complexity and unsuitability for a stateless REST API, opting for a more efficient, direct integration via Emacs’ `file-name-handler-alist`. While limited to GitHub currently, future support for other forges is planned.

## The Resurgence of the Handcart The humble handcart, a human-powered vehicle millennia old, is experiencing a modern revival. Despite the prevalence of motorized transport, its simplicity, affordability, and independence from fossil fuels make it surprisingly relevant today. Unlike modern, small-wheeled carts, traditional handcarts were large and robust, capable of long-distance hauling – a cornerstone of transport in historical China and, briefly, during the Industrial Revolution. Driven by a desire to reduce reliance on cars, Kris De Decker commissioned a custom-built handcart, finding it invaluable for moving goods and materials. This cart, capable of carrying loads comparable to a car trunk, operates on minimal effort due to low speed and optimized wheel design. Beyond basic transport, the handcart’s platform is adaptable – with additions like a seat, work table, solar panel, and even a sleeping platform – transforming it into a mobile office, power station, or even a nomadic home. While not a replacement for all vehicles, the handcart offers a sustainable, democratic, and surprisingly versatile alternative, particularly suited for urban environments and community sharing. It’s a reminder that sometimes, the oldest solutions are the most effective.

## AGPLv3§7¶4: Protecting Users from Contradictory Licenses This article by Bradley M. Kühn details a recurring issue in copyleft licensing and how the Affero General Public License, version 3 (AGPLv3), specifically addresses it. The problem stems from vendors deceptively issuing licenses that *appear* copyleft (like GPLv2) but include clauses prohibiting commercial redistribution – a self-contradiction. Previously, GPLv2 offered no recourse, forcing users to abandon projects facing such restrictions. GPLv3 and AGPLv3 attempted to solve this with a clause preventing “further restrictions,” but it only applied to downstream licensors, not the original author. AGPLv3§7¶4 innovatively empowers users to *remove* these contradictory terms themselves. However, exercising this right can be daunting, as companies employing these tactics are often aggressive and litigious, as seen in the Neo4j case. A recent example involves Ascensio’s Onlyoffice, which attempts to enforce trademark display via a questionable interpretation of AGPLv3§7. Nextcloud’s fork, Euro-Office, demonstrates the correct approach – removing the problematic restriction. The author stresses that while legally sound, utilizing AGPLv3§7¶4 requires courage and anticipates potential backlash.

## FCC Router Ban: A Summary The US Federal Communications Commission (FCC) recently banned the sale of new home routers not manufactured in the United States – effectively all current models. The FCC cites national security concerns as the reason, requiring manufacturers seeking exemption to commit to costly and extensive US-based manufacturing plans. This decision is expected to significantly increase router prices, as US manufacturing isn’t currently competitive with Asian production. While the OpenWrt One router is already FCC approved and unaffected, the ruling raises concerns for future hardware development. The FCC may also attempt to restrict software updates to existing routers, though user-initiated updates (like installing OpenWrt) remain unrestricted – a crucial aspect for long-term security. The author argues that focusing on open-source software and established security standards like NIST IR 8425A is a more effective approach than geographical restrictions. They advocate for a global, standards-based view of tech security, rather than prioritizing country of origin. They have contacted the FCC for clarification and will provide updates.

## GnuPG 2.5.19 Released A new version of GnuPG, 2.5.19, is now available, bringing new features and bug fixes to the widely-used encryption and signing tool. Key improvements include new options for hash display and cipher algorithms, enhanced smartcard integration, and updates to key server functionality. This release continues the focus on 64-bit Windows support and incorporates Kyber, a post-quantum cryptography (PQC) algorithm. Notably, the upcoming 2.6 series will largely focus on internal improvements leveraging newer library features, rather than significant functional changes from the 2.4 series. **Users of the 2.4 series should update to 2.5.19 promptly, as 2.4 will reach end-of-life in two months.** GnuPG remains fully backward compatible with previous versions and is free software under the GNU General Public License. Downloads and detailed information, including signature verification instructions, are available at [https://gnupg.org/download/](https://gnupg.org/download/). Debian packages are also available.

This GitHub repository, “kodak-pcd0992-statistical-characterization” by PearsonZero, is a public collection of statistical profile data. It contains 24 PDF documents, each named “KODIMxx_STATISTICAL_PROFILE.pdf” (where xx ranges from 01 to 24), likely representing statistical analyses for different Kodak products or components. Alongside the PDFs, the repository includes 24 corresponding JSON files (“kodimxx_stats.json”) and a “kodak_suite_master_stats.json” file, suggesting the data from the PDFs has been structured for programmatic access and analysis. A single `.gitkeep` file is also present, used to ensure the baseline directory isn’t empty. The repository has 2 stars and no forks, issues, or pull requests, indicating it's a relatively new or less actively used resource. It appears to be a data dump of statistical characterization reports.

## Homemade PBX: A Lifelong Pursuit Driven by a childhood fascination with telecommunications – starting with homemade intercoms and shortwave radios – the author built a fully functional, eight-extension PBX in 1992-93. This project was fueled by a co-op job at Bell-Northern Research granting access to components and knowledge, alongside bargain-hunting for used telephones. The system replicates telco specifications (48V on-hook, ringing voltage, loop current) and supports both DTMF and pulse dialing, converting between them as needed. It allows for three simultaneous calls, standard call progress tones, and features like hold, speed dial, call forwarding, and joining calls in progress. Built using readily available components and a microcontroller (8031), the design prioritized functionality over efficiency, utilizing relays for switching and oversampling for tone generation. While lacking detailed schematics, the author provides insights into the hardware and software, emphasizing its educational and entertainment value. The resulting PBX performs indistinguishably from a commercial system, fulfilling a long-held ambition and providing a unique, engaging project.

## EU Age Verification Apps: A Critical Look EU plans for age verification apps aiming to protect children online are facing significant hurdles and may not deliver on promised privacy. While marketed as utilizing zero-knowledge proofs for anonymous age confirmation, the reality is more complex. Platforms can bypass the privacy-focused system entirely by using standard KYC (Know Your Customer) procedures – scanning full IDs and collecting extensive personal data. Furthermore, the system relies heavily on Google and Apple for device attestation, effectively locking out alternative operating systems like GrapheneOS or Huawei phones. The touted “zero-knowledge” cryptography isn’t even active in the current reference app, relying instead on older, less secure methods. Crucially, the system’s unlinkability – preventing sites from tracking users – depends on wallets *behaving* correctly, not inherent cryptographic security, and is vulnerable to “relay attacks” where adults can verify for minors. Despite claims of a unified “EU app,” implementation will fall to individual countries, likely resulting in fragmented and potentially flawed systems. Ultimately, the initiative risks becoming a Trojan horse for broader digital ID schemes, prioritizing control over genuine privacy and potentially creating new avenues for surveillance. While the intention is positive, the technical limitations and political realities suggest a reliance on existing, less private methods is far more likely.

## Inside the Super Nintendo: More Than Just ROMs Super Nintendo cartridges contained much more than just game code and graphics. Beyond the ROM chips, they housed components like copy protection (CIC) chips, save game memory (SRAM), and even “enhancement processors” to boost performance. The CIC chip prevented piracy by communicating with a chip in the console, resetting the system if a mismatch occurred. ROM sizes varied greatly – *Star Ocean* utilized a massive 48Mb, while *Super Mario World* fit within just 4Mb. A comprehensive list of ROM sizes for 3,378 titles has been compiled. However, the real innovation lay in enhancement processors. The **Super FX** chip powered *Star Fox’s* 3D graphics, while the **SA-1** offered a faster CPU for games like *Super Mario RPG*. Others, like the **CX4** in *Mega Man X2*, handled complex sprite manipulation, and the **DSP-1** improved Mode 7 effects in *Super Mario Kart*. These chips often required unique engineering solutions and presented challenges for emulator developers, some of which weren’t fully overcome until 2012. Today, the retro-gaming community continues to leverage these chips, even improving older games by removing slowdowns and enhancing graphics through projects like Project Super FX.

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## DeepSeek-V4 Day-0 Support with SGLang & Miles SGLang and Miles are the first open-source stack to offer full support – both inference and reinforcement learning training – for DeepSeek-V4 (1.6T Pro & 284B Flash) upon its launch. This support is specifically designed for DeepSeek-V4’s unique architecture, including hybrid sparse attention, manifold-constrained hyper-connections (mHC), and FP4 expert weights. Key innovations include **ShadowRadix** for efficient prefix caching with hybrid attention, and optimizations like **HiSparse** to offload inactive KV cache to CPU for larger batch sizes. Inference benefits from fast kernel integrations (FlashMLA, TRTLLM-Gen MoE, DeepGEMM Mega MoE, TileLang mHC) and extensive parallelism. For RL training, the stack provides full parallelism (DP/TP/SP/EP/PP/CP), Tilelang attention, and enhanced stability with FP8 training. Testing demonstrates stable training dynamics and competitive performance, with a focus on maintaining precision and addressing numerical stability issues. Benchmarks show strong decode throughput, particularly on longer contexts. This launch represents a significant step forward in accessible large language model technology, supported by a collaborative effort and detailed in a comprehensive blog post outlining the design and optimizations.

## Reviving BrowserID for Personal Apps In 2026, a developer is building “WKID,” a new identity provider (IdP) based on the previously defunct BrowserID protocol. The motivation stems from the rise of small, personally-built applications fueled by easier development tools like LLMs. These “bespoke apps” require user management, but existing solutions like Google or Auth0 introduce unwanted dependencies and potential account restrictions. BrowserID offers a compelling alternative: it’s federated, private, and lightweight. It leverages email domains for authentication – allowing the developer full control – and avoids the need to register each app with a central server. Unlike Mozilla’s failed 2016 attempt, WKID isn’t aiming for widespread adoption. It’s designed specifically for the developer’s own projects and those of close friends/family, all using email domains they control. This eliminates the “chicken-and-egg” problem that plagued BrowserID previously, as success is defined by personal utility, not market share. While requiring users to have email domains supporting WKID, this is acceptable within the context of bespoke applications. Development is ongoing, focusing on polishing and documentation.

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## The George Business: A Summary Dart, a pragmatic dragon, is disturbed by a prophetic dream of battling a knight resembling the legendary Saint George. To his surprise, the knight, named George, *wants* to fight – but not for treasure or a damsel. He hires Dart for a bizarre scheme: to fake an abduction of Baron Maurice’s daughter, Rosalind, allowing George to “rescue” her and appear heroic in her eyes. Dart, skeptical but intrigued by the gold offered, agrees. The staged battle goes off without a hitch, but the plan backfires when Rosalind immediately marries a barbarian, and the Baron unexpectedly dies, elevating George’s rival. Undeterred, George proposes a new business venture: he’ll scout wealthy, hero-less towns, and Dart will play the villain, allowing George to “slay” him for a fee. Dart, recognizing George’s unusual, dragon-like cunning, accepts, establishing a profitable, if unconventional, partnership built on staged battles and mutual benefit. They toast to their new enterprise, ready to exploit the human need for heroes and dragons alike.

## AI Solves Long-Standing Math Problem A 23-year-old amateur mathematician, Liam Price, recently solved a 60-year-old unsolved problem posed by Paul Erdős – a feat that baffled professional mathematicians for decades – using OpenAI’s ChatGPT Pro. The problem concerned “primitive sets” of numbers, where no number is divisible by another, and Erdős’s conjecture about the lowest possible “score” for these sets. What sets this solution apart is *how* it was achieved. Unlike previous AI successes on Erdős problems, ChatGPT appears to have utilized a completely novel approach, employing a known formula in an unexpected way. Experts like Terence Tao at UCLA believe the AI bypassed a “mental block” hindering human mathematicians. While the initial output required refinement by experts, the core insight is already showing promise for broader applications in number theory, potentially revealing new connections between large numbers. This breakthrough suggests these problems may have been simpler than previously thought and validates existing intuitions about their interconnectedness, offering a fresh perspective on mathematical exploration.