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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.

(www.sandordargo.com)

Development

AI-Designed Proteins Neutralize Snake Venom: A Game Changer in Antivenom Development

2025-04-19

AI-Designed Proteins Neutralize Snake Venom: A Game Changer in Antivenom Development

A groundbreaking study uses AI protein design to create antivenoms that effectively neutralize toxins from cobras and other snakes. Traditional antivenom production is expensive, slow, and prone to side effects. AI-designed proteins overcome these limitations, demonstrating superior toxin neutralization in both in vitro and in vivo experiments. This offers a promising solution to the significant public health threat of snakebites, showcasing AI's potential to revolutionize biomedicine and provide safer, more effective, and affordable antivenoms.

(plentyofroom.beehiiv.com)

AI Antivenom

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.

(bcantrill.dtrace.org)

Tech systems research

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.

(raz.sh)

Development Protocol Design

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.

(werd.io)

Tech

The Stack Unwinding Conundrum in Perf

2025-01-31

The Stack Unwinding Conundrum in Perf

Perf, a powerful performance analysis tool, uses PMU counter overflow interrupts to capture thread states for profiling. However, stack unwinding presents a challenge. Modern compilers omit frame pointers by default, making stack backtracing difficult. While recompiling with -fno-omit-frame-pointer is possible, it's expensive and can lead to system library incompatibilities. DWARF offers an alternative, but its complexity and performance overhead are substantial, leading Linus Torvalds to reject its use in kernel stack unwinding. Perf thus employs a compromise: copying only the top portion of the stack to userspace for unwinding. This limits stack size (65,528 bytes) but effectively balances performance and practicality.

(medium.com)

Development performance analysis stack unwinding

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.

(www.economist.com)

Misc Japanese law same surname marriage laws

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.

(github.com)

Development container init zombie processes

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.

(eli.thegreenplace.net)

Development Model Efficiency

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.

(secondthoughts.ai)

Development

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.

(marcin.juszkiewicz.com.pl)

Development Development Machine

Holographic Display Tech: Bringing Your Videos to Life

2025-09-21

Holographic Display Tech: Bringing Your Videos to Life

HLD technology enhances standard 2D video with shadows and lighting effects, making the content appear as if it's on a holographic stage. You can create these videos using AI video generation tools (e.g., Kling, Veo, Runway), real-world footage (e.g., iPhone, DSLR), or digital renderings (e.g., Blender, Cinema4D, Maya). An Adobe Premiere Pro/After Effects template and user guide will be provided to add lighting effects. Additionally, you can build real-time applications using tools like Unity3D and Unreal Engine. Templates, tutorials, and user guides will be available soon.

(lookingglassfactory.com)

Tech holographic display video enhancement

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.

(computer.rip)

Tech Aviation History Technological Development

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.

(github.com)

Development Sysadmin

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.

(www.thebookseller.com)

Misc Online Abuse

Open Source Project Arnis: Replicating Real-World Locations in Minecraft

2024-12-31

Open Source Project Arnis: Replicating Real-World Locations in Minecraft

Arnis is an open-source project written in Rust that generates any chosen location from the real world in Minecraft Java Edition with a high level of detail. Leveraging geospatial data from OpenStreetMap and the power of Rust, Arnis efficiently creates complex and accurate Minecraft worlds reflecting real-world geography and architecture. Users select an area, and Arnis processes the data to generate a Minecraft world centered at coordinates 0,0,0. Originally developed in Python, it was ported to Rust for enhanced performance.

(github.com)

Game Map Generation

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.

(charliesabino.com)

Misc scientific calculation atmospheric science

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

2025-04-19

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.

(www.sciencedaily.com)

Tech atmosphere planetary science

MCPEngine: Building Production-Ready MCP Servers on AWS Lambda

2025-04-23

MCPEngine: Building Production-Ready MCP Servers on AWS Lambda

MCPEngine is an open-source implementation of the Model Context Protocol (MCP), enabling Large Language Models (LLMs) to call external tools. This post demonstrates building three progressively more complex MCP servers on AWS Lambda: stateless, stateful, and with Google SSO authentication. MCPEngine supports streamable HTTP alongside SSE, offering first-class support for authentication, packaging, and other capabilities for building and deploying production-grade MCP servers. The post walks through building these servers, showcasing how to run MCP tools reliably and securely in serverless environments with detailed steps and code examples.

(www.featureform.com)

Development

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.

(www.theregister.com)

Tech

Ahoy, Matey! The Surprisingly Important History of Beer at Sea

2025-04-23

From Mesopotamia to the 19th century, beer was a vital part of seafaring life. Not only did it provide sailors with nutrition and calories, but crucially, it helped prevent scurvy on long voyages. This article details beer's surprisingly important role in maritime history, from ancient daily drink to Royal Navy rations, its use in preventing scurvy, and the evolution of brewing techniques. It's a fascinating blend of history and technology.

(blog.library.si.edu)

Misc maritime history beer scurvy

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.

(thecreativeindependent.com)

Design Generative Art Coding Art

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.

(news.azpm.org)

Misc wrongful detention border patrol

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.

(medicalxpress.com)

Health

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.

(github.com)

Development Parser Combinators

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.

(phys.org)

Tech

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.

(www.cnn.com)

Tech Cuba Power Grid

Wireless Gene Expression Control: Nanoparticles Enable a New Era of Precision Medicine

2025-05-28

Wireless Gene Expression Control: Nanoparticles Enable a New Era of Precision Medicine

Researchers at ETH Zurich have developed a novel method for the electromagnetic wireless control of transgene expression in mammals using nanoparticles. The approach employs magnetic fields to stimulate multiferroic nanoparticles (cobalt ferrite and bismuth ferrite), generating biosafe reactive oxygen species (ROS) that activate the cellular KEAP1/NRF2 pathway, precisely controlling the expression of therapeutic proteins like insulin. Successfully tested on a diabetic mouse model, this technology allows for remote and dynamic therapy adjustment without injections or implants. Promising applications include oncology, neurology, and regenerative medicine, potentially revolutionizing precision medicine.

(phys.org)

AI

TacOS: A From-Scratch OS Running DOOM

2025-04-24

TacOS: A From-Scratch OS Running DOOM

A developer has released TacOS, an open-source operating system with a kernel written in C and assembly. This UNIX-like kernel boasts features including a VFS, scheduler, TempFS, device drivers, context switching, virtual memory management, and physical page frame allocation. Remarkably, it can run DOOM and other smaller user-space programs. It's been tested on real hardware and in QEMU. While still a work in progress with known bugs, TacOS is a fascinating hobby project.

(github.com)

Development

US-China Trade War: 90-Day Truce, Massive Tariff Cuts

2025-05-12

US-China Trade War: 90-Day Truce, Massive Tariff Cuts

In a surprise breakthrough, the US and China agreed to significantly roll back tariffs on each other's goods for 90 days, easing the punishing trade war and boosting global markets. The US will temporarily lower tariffs on Chinese goods from 145% to 30%, while China will cut tariffs on US imports from 125% to 10%. Both sides committed to establishing a mechanism for continued dialogue on economic and trade relations. The news sent global markets soaring, easing recession fears.

(edition.cnn.com)

Tech US-China trade

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