Website Display Error Due to Disabled JavaScript

2025-07-10
Website Display Error Due to Disabled JavaScript

When visiting a website, a message appeared: "JavaScript has been disabled in your browser." This resulted in an abnormal display, showing only basic elements like navigation, search, content, footer, and contact information. The website relies on JavaScript for rendering and functionality. Enabling JavaScript in browser settings is recommended for a complete website experience.

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Development

Immortal Poem: Art That Outlives Us All

2025-05-13

After nearly 25 years, poet Christian Bök has achieved the seemingly impossible: a self-replicating poem encoded into the genome of an almost immortal bacterium. The Xenotext experiment is the world's first biologically self-replicating poem, a testament to artistic ambition and a groundbreaking fusion of art and science. Its lifespan could potentially outlast humanity itself.

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Art bio art

MCP: A Protocol in Need of a Major Overhaul?

2025-05-10
MCP: A Protocol in Need of a Major Overhaul?

This article presents a critical analysis of the Model Context Protocol (MCP). The author attempted to build an MCP server, only to find the documentation lacking, design decisions bizarre, and the HTTP transport options (SSE+HTTP and the so-called "Streamable HTTP") overly complex and confusing, far inferior to the simplicity and efficiency of WebSockets. The author argues that MCP's excessive flexibility leads to increased complexity, higher maintenance costs, and security risks. They suggest replacing the existing HTTP transport with WebSockets and simplifying the protocol design for improved usability.

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(raz.sh)
Development Protocol Design

Go Scripting Library: script — Simplifying Sysadmin Tasks

2025-01-31
Go Scripting Library: script — Simplifying Sysadmin Tasks

The `script` library for Go provides shell-script-like capabilities for system administrators, including reading files, executing subprocesses, counting lines, matching strings, and more. It processes data streams using a pipeline approach with a clean API, making Go programming as efficient and convenient as shell scripting. `script` supports a wide range of operations, from file I/O and HTTP requests to external command execution and custom filters, significantly simplifying system administration tasks. For example, it easily replicates `grep` functionality and supports concurrent execution for improved performance.

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Development Sysadmin

C++20 Ranges Performance: A Surprise Twist

2025-04-19

The author replaced a raw loop with `std::ranges::transform` in a C++ project, expecting a performance boost. Tests revealed a surprising result: an optimized raw loop (using `emplace_back` and `reserve`) proved 20% faster on Clang and 10% faster on GCC. The article compares different approaches, highlighting performance and code readability. The conclusion: prioritize readability unless performance is a critical bottleneck.

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Development

Programmer as Artist: Generative Art Through Code

2025-04-23
Programmer as Artist: Generative Art Through Code

A programmer-artist shares his approach to creating generative art using programming languages. He favors interactive languages like Lisp and Smalltalk, modifying code in real-time while the program runs and inspecting its state for creative exploration. His inspiration comes from natural systems and art history; for example, he replicated Kandinsky's style to generate countless similar patterns through code. He views art and scientific research as similar, both relying on creative problem-solving, while noting that AI, though capable of generating images, lacks the self-transformation and enhanced perception inherent in human artistic creation.

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Efficient Transformers: Sparsely-Gated Mixture of Experts (MoE)

2025-04-20

Feed-forward layers in Transformer models are often massive, creating an efficiency bottleneck. Sparsely-Gated Mixture of Experts (MoE) offers an elegant solution. MoE decomposes the large feed-forward layer into multiple smaller 'expert' networks and uses a router to select the optimal subset of experts for each token's computation, significantly reducing computational cost and improving efficiency. This post details the workings of MoE, provides a NumPy implementation, and discusses key issues like expert load balancing.

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Development Model Efficiency

Late-Night Workouts? New Study Links Intense Exercise Before Bed to Sleep Disruption

2025-04-25
Late-Night Workouts?  New Study Links Intense Exercise Before Bed to Sleep Disruption

A large-scale study involving 14,689 participants reveals a significant link between strenuous exercise within four hours of bedtime and impaired sleep quality. Participants experienced delayed sleep onset, shorter sleep duration, increased resting heart rate, and reduced heart rate variability after intense workouts close to sleep. The research, published in Nature Communications, recommends ending exercise at least four hours before bed for optimal sleep health. If exercising within this window, low-intensity activities are suggested to minimize disruption. This study provides crucial insight into the impact of exercise timing on sleep and highlights the importance of considering intensity and scheduling for better sleep.

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Health

AI Coding Tools: A 19% Productivity Drop for Experienced Developers

2025-07-11
AI Coding Tools: A 19% Productivity Drop for Experienced Developers

A rigorous study of experienced developers using AI coding tools reveals a surprising 19% decrease in productivity, contradicting developers' self-reported expectation of a 20% increase. The study found that AI-generated code often failed to meet the high standards of mature, large-scale projects, leading to significant time spent reviewing and correcting the AI's output. This highlights the limitations of current AI coding tools, suggesting that their effectiveness is heavily dependent on project type, developer experience, and the maturity of the tools themselves.

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Development

Open Source Software: Utopia's Ideal and Reality's Struggle

2025-06-14
Open Source Software: Utopia's Ideal and Reality's Struggle

This article reviews the history of open-source software, from early academic sharing to the rise of commercial software, and the free software movement championed by Richard Stallman and the subsequent open-source movement. The author points out that while open-source software has fueled the growth of the tech industry, its development faces many challenges, such as insufficient funding, lack of diversity among contributors, and failure to fully realize its original social ideals. Open-source software is not a panacea; its success stories rely more on corporate support than purely community contributions. The author uses their own experience founding the open-source social networking platform Elgg to illustrate the limitations and opportunities of open-source software in practical applications.

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Tech

Tini: A Minimalist Init for Containers

2025-04-20
Tini: A Minimalist Init for Containers

Tini is a lightweight init system designed for containers. It prevents zombie processes, ensures proper signal handling, and improves container stability. Built into Docker 1.13 and later (using the `--init` flag), Tini can also be manually installed for older versions or other container runtimes. Advanced options include subreaper functionality, exit code remapping, and signal forwarding for complex scenarios. It's incredibly small and adds minimal overhead.

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Beyond the Wedge Product: A Novel Decomposition of the Geometric Product

2025-05-23

This paper introduces a new operation called the "transwedge product," which completely decomposes the geometric product into fundamental operations of exterior algebra: the exterior product, left and right complements, and application of the metric. The author demonstrates that the transwedge product generates a spectrum of products ranging from the exterior product to the interior product (contraction), replacing the commutator product and offering a cleaner way to compute the geometric product. This applies not only to three dimensions but also to higher-dimensional geometric algebras, with practical applications in conformal geometric algebra, such as calculating circles intersecting orthogonally.

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The Demise of USENIX ATC: The End of Academic Conferences in the Age of Open Source?

2025-05-12

The USENIX Annual Technical Conference (ATC) has been discontinued, prompting reflection on the academic conference model and the direction of systems research in the age of open source. The author recounts ATC's journey from glory to decline, arguing that the rise of open source has altered how systems research findings are disseminated, diminishing the importance of academic conferences. Simultaneously, ATC itself suffered from becoming overly academic and detached from practice, ultimately leading to its demise. While lamenting ATC's end, the author suggests that the rise of online conferences offers new possibilities for systems research.

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The Surprisingly Weird History of Air Traffic Control

2025-05-12
The Surprisingly Weird History of Air Traffic Control

This article delves into the century-long evolution of the US Air Traffic Control (ATC) system, from its beginnings in World War I military aviation radio to the intricate National Airspace System (NAS) of today. It reveals how ATC's development has been profoundly shaped by war, airmail, and technological advancements like radar, exploring the complex interplay between military systems (like SAGE) and civilian ATC, and the resulting technological and managerial challenges. From rudimentary ground control to today's automated systems, the path of ATC has been anything but straightforward, filled with compromises and unforeseen consequences, reflecting the constant tension between technological progress and practical application.

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You Inhale Caesar's Last Breath? Fermi Estimation Shows How

2025-05-23
You Inhale Caesar's Last Breath? Fermi Estimation Shows How

This article uses Fermi estimation to calculate how many molecules from Caesar's last breath are in each breath you take. By estimating the volume of Earth's atmosphere and a single breath, along with the number of molecules in the atmosphere, it concludes that you inhale approximately one molecule from Caesar's last breath with each breath! This seemingly unbelievable result showcases the power of Fermi estimation and approximate calculations in science. The article also provides links for further learning about Fermi estimation methods and applications.

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US Citizen Wrongfully Detained at US-Mexico Border

2025-04-20
US Citizen Wrongfully Detained at US-Mexico Border

A 19-year-old US citizen, Jose Hermosillo, visiting Tucson from Albuquerque, was wrongfully arrested by Border Patrol for illegal entry after being found without identification near their headquarters. Hermosillo, who maintains he's never been to Nogales, was detained at the Florence Correctional Center. His family, after frantic searches, provided his birth certificate and social security card, leading to the dismissal of the case and his release. This incident highlights ongoing concerns about wrongful detentions of US citizens by immigration officials.

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Curiosity Rover Uncovers Evidence of Ancient Martian Carbon Cycle

2025-04-18
Curiosity Rover Uncovers Evidence of Ancient Martian Carbon Cycle

NASA's Curiosity rover has discovered significant carbonate deposits on Mount Sharp within Gale Crater on Mars, suggesting a past carbon cycle. This finding supports theories of a thicker ancient Martian atmosphere and potential habitability. Researchers believe that as Mars' atmosphere thinned, CO2 transformed into rock, leading to a colder climate and the loss of habitability. The discovery provides crucial insights into Mars' climate transitions and habitability, offering new avenues in the search for extraterrestrial life.

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Tech

Budget Ampere Altra Dev Machine Build

2025-06-30
Budget Ampere Altra Dev Machine Build

Needing a development machine with 64k page size support, the author built a system based on Ampere Altra. He chose an AsrockRack ALTRA8BUD-1L2T motherboard, a used Q80-30 processor (80 cores, 3.0 GHz), an Arctic Freezer 4U-M cooler, and eight 16GB SK Hynix HMA82GR7CJR8N-XN RAM sticks. After some troubleshooting, the system booted successfully. He also selected a suitable case and power supply, adding NVME storage and a graphics card. The total cost was around €1800, slightly over budget. Future plans include installing Fedora 42, creating RHEL and CentOS Stream VMs, experimenting with different GPUs, and desktop usage.

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Development Development Machine

Hackers Use Raspberry Pi to Infiltrate Bank ATM Network

2025-08-01
Hackers Use Raspberry Pi to Infiltrate Bank ATM Network

Security firm Group-IB revealed a network attack targeting bank ATMs. Attackers used physical access to install a Raspberry Pi device connected to the ATM network switch, gaining access via a 4G modem. To maintain persistence, they compromised a mail server and cleverly used the bank's monitoring server as an intermediary to communicate with the Raspberry Pi and mail server backdoor. The attackers disguised the backdoor process to mimic the legitimate LightDM process, evading detection. Group-IB researchers uncovered this unusual activity and prevented the attackers from deploying the CakeTap backdoor.

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Tech

Goodreads Failing Authors: Pre-Publication Negative Reviews Run Rampant

2025-06-25
Goodreads Failing Authors: Pre-Publication Negative Reviews Run Rampant

Authors are reporting a surge in negative reviews on Goodreads before their books are even released, with the platform seemingly failing to adequately address the issue. Crime writer Jo Furniss detailed her experience, receiving a two-star review for her unreleased thriller, "Guilt Trip." After responding, her comment was removed, and Goodreads advised against confronting negative reviewers. This highlights a broader problem of online abuse and a lack of author protection on the platform. Other authors echoed similar experiences, emphasizing the damaging potential of pre-publication negative reviews and calling for a stronger code of conduct from Goodreads.

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Japanese Couple's Three Divorces, Three Marriages: A Tug-of-War Between Law and Love

2025-06-28
Japanese Couple's Three Divorces, Three Marriages: A Tug-of-War Between Law and Love

Yukari Uchiyama and Yukio Koike, a teaching couple from Nagano, Japan, have divorced and remarried three times to circumvent a law requiring spouses to share the same surname. Deeply in love, they've repeatedly separated and reunited, marrying only to register births and then divorcing to maintain their preferred unmarried lifestyle. Their unconventional situation highlights the conflict between Japanese law and individual freedoms.

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Cuba Suffers Nationwide Blackout After Grid Collapse

2025-03-15
Cuba Suffers Nationwide Blackout After Grid Collapse

A nationwide power outage plunged Cuba into darkness Friday night after its power grid collapsed. The failure, originating at the Diezmero substation, caused a significant loss of generation in western Cuba and crippled the national electric system. While efforts are underway to restore power, with some localized systems already back online, the full restoration timeline remains unclear. This latest outage adds to a string of power failures plaguing the island, highlighting issues with aging infrastructure, natural disasters, and economic turmoil. The government cites US sanctions, while critics point to a lack of domestic investment. The widespread blackout has caused significant disruption for Cubans, many of whom rely on electricity for cooking and refrigeration.

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Gleam: A Type-Safe Language on the Erlang VM

2025-02-28
Gleam: A Type-Safe Language on the Erlang VM

The author explores Gleam, a type-safe language running on the Erlang VM, using it to build an open-source feed aggregator. Comparing it to Rust and Erlang, the author highlights Gleam's combination of Rust's type system and Erlang's concurrency model while avoiding their drawbacks. The post details building the aggregator, covering design, implementation, error handling, and Erlang interoperability. The author concludes that Gleam's Erlang/OTP integration is its killer feature, though not yet fully stable, making it suitable for personal projects.

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Development

Avro Arrow: The Canadian Supersonic Jet That Never Was

2025-04-23
Avro Arrow: The Canadian Supersonic Jet That Never Was

The Avro Arrow, a Canadian-built supersonic interceptor hailed as the world's best in its time, was abruptly cancelled in 1959, with all planes and blueprints destroyed. This article recounts the Arrow's rise and fall, exploring the political and technological factors behind its demise and its enduring legacy. Despite its cancellation, the project showcased Canada's aeronautical prowess and national pride. Many engineers involved later contributed to the American space program, highlighting a continuation of Canadian expertise in aerospace.

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Stochastic Calculus: A Deep Dive from Physics to Finance

2025-04-16

This post delves into stochastic calculus, extending regular calculus to stochastic processes. Starting with the measure-theoretic definition of probability, it covers stochastic processes, the Wiener process, Itô calculus, and applications in physics and finance. The author blends intuition with rigor, using examples like the Langevin equation to illustrate key concepts. It's a comprehensive yet accessible guide to a complex topic.

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Jupiter's Ammonia Hailstorms: A Deep Dive into the Giant Planet's Atmosphere

2025-04-19
Jupiter's Ammonia Hailstorms: A Deep Dive into the Giant Planet's Atmosphere

Scientists at UC Berkeley have confirmed the existence of ammonia-water 'mushballs' on Jupiter – icy slushballs that act like hailstones during thunderstorms. This discovery stems from explaining the uneven distribution of ammonia gas in Jupiter's upper atmosphere, confirmed by data from NASA's Juno mission and Earth-based radio telescopes, and a newly created 3D visualization of Jupiter's upper atmosphere. The mushballs penetrate deep into Jupiter's atmosphere, altering our understanding of the mixing in giant planet atmospheres and offering insights into the internal structure of other gas giants and even exoplanets. The research challenges the long-held assumption of a well-mixed Jovian atmosphere, revealing the crucial role of deep storms and mushballs in redistributing materials.

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Parcom: A Concise Parser Combinator Library for Common Lisp

2025-04-22
Parcom: A Concise Parser Combinator Library for Common Lisp

Parcom is a concise parser combinator library for Common Lisp, similar in style to Haskell's Parsec and Rust's Nom. Operating directly on strings with no dependencies, it boasts broad Common Lisp implementation support and offers a rich set of parsers and combinators for building custom parsers. Parcom also includes an optional JSON parser supporting Unicode. Its strength lies in its ability to combine existing parsers to create complex parsing logic, delivering powerful functionality through a clean API.

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Development Parser Combinators

NSA and CISA Push for Memory-Safe Programming Languages

2025-06-30
NSA and CISA Push for Memory-Safe Programming Languages

The US National Security Agency (NSA) and Cybersecurity and Infrastructure Security Agency (CISA) have jointly issued guidance urging software developers to adopt memory-safe programming languages like Rust and Go. The report highlights memory safety vulnerabilities as a leading cause of software security issues, citing C and C++ as particularly vulnerable due to their memory management mechanisms. While projects aim to improve C/C++ security, a long-term shift to memory-safe languages is presented as the best risk mitigation strategy. Government initiatives, such as DARPA's TRACTOR program (which aims to automatically translate C code to Rust), are actively promoting this transition.

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Tech

C++26: A Giant Leap for constexpr

2025-04-23

C++26 is set to revolutionize constexpr! Upcoming features include constexpr casts from void*, enabling more flexible compile-time memory manipulation; constexpr placement new, allowing object placement within constant expressions; and constexpr structured bindings, bringing compile-time structured binding. These improvements drastically expand constexpr's reach and empower the standard library with significantly enhanced compile-time capabilities.

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Agent Mesh: The Future of Networking for Agentic AI Systems

2025-04-24

Enterprise software architectures are evolving from mainframes to microservices, and agentic systems represent the next leap forward. These systems reason, adapt, and act autonomously, but require a new networking infrastructure. This post introduces the concept of an "agent mesh," a platform enabling secure, observable, and governed interactions between agents, LLMs, and tools. The agent mesh solves communication challenges across agent-to-LLM, agent-to-tools, and agent-to-agent interactions, featuring security defaults, fine-grained access control, and end-to-end observability. It leverages a specialized data plane (agent gateway) optimized for AI communication patterns and supports diverse agents and tools across any cloud environment. With its composable components, the agent mesh empowers enterprises to build scalable, adaptive, and secure intelligent agent systems.

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