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arXivLabs: Experimenting with Community Collaboration

2025-06-12

arXivLabs is a framework for collaborators to develop and share new arXiv features directly on the arXiv website. Individuals and organizations working with arXivLabs uphold our values of openness, community, excellence, and user data privacy. arXiv is committed to these values and only partners with those who share them. Have an idea for a project that will benefit the arXiv community? Learn more about arXivLabs.

(arxiv.org)

Development

High-Energy Nitrogen: Breakthroughs and Challenges

2025-06-18

High-Energy Nitrogen: Breakthroughs and Challenges

Recent years have witnessed significant progress in the research of polynitrogen compounds as high-energy-density materials. Scientists have successfully synthesized compounds containing hexazine rings and conducted in-depth studies on their structure and stability. However, the synthesis and stability of polynitrogen compounds remain a significant challenge, with factors such as quantum tunneling effects playing a crucial role. Future research will focus on overcoming the challenges in synthesis and stability to develop safer and more efficient polynitrogen high-energy materials.

(www.nature.com)

Tech high-energy-density materials polynitrogen compounds quantum tunneling effect

Munich 2025: A Repeat of History?

2025-02-18

Munich 2025: A Repeat of History?

As American and Russian negotiators meet in Munich for a major security conference in 2025, the author draws parallels to the 1938 Munich Agreement. Using the 1938 invasion of Czechoslovakia as a cautionary tale, the piece highlights the dangers of appeasement. The author argues that the current Russo-Ukrainian War mirrors the situation then, with Putin's denial of Ukraine's legitimacy echoing Hitler's denial of Czechoslovakia's. The article contrasts scenarios of Czechoslovakian and Ukrainian resistance versus hypothetical surrender. Ukraine's resistance, the author contends, prevented a wider war and slowed nuclear proliferation. Criticizing the Trump administration's appeasement of Russia, the author warns this approach will lead to longer and bloodier conflict. Ultimately, the author warns that appeasing Putin risks a world war.

(snyder.substack.com)

Misc Russo-Ukrainian War historical parallels

Filesystems: More Perilous Than You Think

2025-01-23

A Deconstruct 2019 talk revealed shocking truths about filesystems: from the inconsistencies and difficulty of correctly using the file API, to serious bugs within filesystems themselves and the high error rates of disks, data corruption is rampant. The speaker delved into the atomicity issues of file writes and the challenges posed by different filesystem modes (e.g., ext3/ext4's data=journal, ordered, writeback). Even experienced programmers struggle to avoid mistakes leading to data loss or corruption. The talk also analyzed errors in popular databases and version control systems and suggested using databases instead of files to improve data reliability.

(danluu.com)

Development filesystem software reliability

Campfire: A Single-Tenant Web Chat App with Docker Deployment

2025-09-07

Campfire: A Single-Tenant Web Chat App with Docker Deployment

Campfire is a web-based chat application supporting multiple rooms, direct messaging, file attachments with previews, search, web push notifications, @mentions, and an API for bot integrations. It's single-tenant; multiple instances are deployed for different customer groups. The Docker image includes everything needed for a single-machine deployment: web app, background jobs, caching, file serving, and SSL. Persist database and file attachments by mapping a volume to /rails/storage. Configure SSL, web push notifications, and error reporting via environment variables.

(github.com)

Development Chat Application Single-Tenant

Mindless Machines, Meaningless Myths: A Review of Robert Skidelsky's 'Mindless'

2025-08-18

Mindless Machines, Meaningless Myths: A Review of Robert Skidelsky's 'Mindless'

This review examines Robert Skidelsky's 'Mindless: The Human Condition in the Age of Artificial Intelligence,' which explores the philosophical implications of AI, automation, and the illusion of progress. The author argues that we inhabit a 'machine civilization' where technology shapes our thinking, work, and relationships, prompting fundamental questions about human meaning, purpose, and freedom. Skidelsky traces technological development from the Industrial Revolution to the digital age, showing that progress isn't always positive, potentially leading to meaningless work, over-reliance on technology, and threats to human well-being. He calls for deeper reflection on technological advancement, urging us to avoid the pitfalls of technological optimism.

(lareviewofbooks.org)

AI Philosophy of Technology

The Mystery of the 8x19 Font in Intel BIOS

2025-08-18

This article details the author's journey to uncover the origins of a non-standard 8x19 font found in Intel motherboards' BIOS. Starting with a BIOS POST screenshot from an Intel AN430TX board, the author discovers early Intel boards (like the AN430TX and AL440LX) used a custom 8x19 font, unlike the standard 8x16. To solve the mystery, the author attempts to decode BIOS images, ultimately succeeding with a clever method. This reveals the font's presence in early BIOS versions, cleverly integrated with the string module to save space. Further investigation shows the font's use across different eras, BIOS manufacturers (AMI and Phoenix), and even into later EFI shells. The author speculates Intel, not the BIOS manufacturers, is the font's source, analyzing its role in display technology's evolution.

(www.os2museum.com)

Hardware

Copper Pours on PCBs: Fashion or Necessity?

2025-01-30

Copper Pours on PCBs: Fashion or Necessity?

The widespread use of copper pours in modern PCB design has sparked discussion. This article explores the reasons behind this trend, going beyond mere aesthetics. From early 8-bit computer motherboards to today's smartphones, PCB design has evolved dramatically. Copper pours not only improve signal integrity in high-speed electronics but also reduce RF emissions, aiding compliance with regulations like FCC Part 15. However, the mechanism involves inductance and common-mode chokes; copper pours manage return current paths to lower impedance, reducing interference and radiation. But copper pours aren't always necessary; for most hobby projects, it's not a critical concern. The article concludes by cautioning about the careful consideration required when working with high-speed interfaces, and the potential increase in shunt capacitance.

(lcamtuf.substack.com)

Hardware PCB design copper pours signal integrity

Bias-Free Dual H2 Production System: 4x Higher Efficiency Than DOE Target

2025-05-11

Bias-Free Dual H2 Production System: 4x Higher Efficiency Than DOE Target

Researchers have devised a novel bias-free dual hydrogen production system, replacing the energy-intensive oxygen evolution reaction with the cost-effective oxidation of furfural. The system consists of a highly efficient PtC/Ni/c-Si photocathode for water reduction and a copper anode for furfural oxidation, producing valuable furoic acid and hydrogen. This design cleverly harnesses the high photocurrent of the c-Si photocathode, eliminating the need for external bias and achieving a significantly higher hydrogen production rate than conventional water splitting. The solar hydrogen production rate is more than 8 times higher than previously reported bias-free PEC H2 production systems, far exceeding the US Department of Energy (DOE) target.

(www.nature.com)

Tech photoelectrochemistry hydrogen production

Aella: The Internet's Unfiltered Sex Researcher

2025-05-15

Aella: The Internet's Unfiltered Sex Researcher

Aella, an OnlyFans star and sex researcher, has gained notoriety for her candid approach to sexuality and online research. Using large-scale online surveys, she delves into contemporary sexual behavior, challenging the limitations of traditional sex research. While her methods are controversial, her data offers a unique perspective on 21st-century sexuality and sparks debate about the internet's impact on sexual culture. Aella's story also highlights the complexities and challenges of self-expression in the digital age and its disruption of traditional social norms.

(www.theatlantic.com)

Misc sex research online personality

XLibre: A Rebellious Fork of X11 Challenges Wayland's Dominance

2025-06-29

XLibre: A Rebellious Fork of X11 Challenges Wayland's Dominance

Frustrated by Wayland's slow progress and shortcomings, developer Enrico Weigelt launched XLibre, a deep improvement of X11. XLibre isn't just a simple branch; it's a complete overhaul aimed at fixing Wayland's flaws and offering superior performance and security. Weigelt claims he was ousted from the Xorg project by Red Hat, sparking industry debate about Red Hat's control over Linux development. Surprisingly, Fedora, a Red Hat derivative, is considering replacing X11 with XLibre. XLibre's future remains uncertain, but it's undeniably injected new variables into the Linux desktop world.

(www.webpronews.com)

Development

Multilingualism and Dementia: A Replication Crisis?

2025-06-29

Multilingualism and Dementia: A Replication Crisis?

Countless studies have touted the cognitive benefits of multilingualism, suggesting improvements in executive function (inhibitory control, planning, cognitive flexibility) and even a delayed onset of dementia by around four years. However, replication attempts have yielded mixed results, leaving the true extent and mechanisms of this purported cognitive advantage under question.

(www.economist.com)

AI multilingualism cognitive benefits

Beijing Apartment Explosion Highlights Unproven Cancer Treatment

2025-07-25

Beijing Apartment Explosion Highlights Unproven Cancer Treatment

A Beijing man, Liu, was making a highly concentrated chlorine dioxide solution in his apartment for cancer treatment. An explosion occurred during an experiment, injuring him and endangering his 3-year-old daughter. Liu claims to have treated over 20 patients, but his evidence consists only of unpeer-reviewed preprints and screenshots of WhatsApp chats, lacking scientific rigor. A patient who underwent the treatment described severe side effects, including excruciating pain. Oncologists strongly question the treatment's validity and emphasize that such an unproven method should not be used outside of clinical trials.

(www.wired.com)

Tech chlorine dioxide medical safety

Canon Rides the TikTok Digicam Wave with Pricey, Downgraded PowerShot Elph 360 HS A

2025-09-10

Canon Rides the TikTok Digicam Wave with Pricey, Downgraded PowerShot Elph 360 HS A

Canon is capitalizing on TikTok's resurgence of point-and-shoot cameras by re-releasing the mid-2010s PowerShot Elph 360 HS A. While largely the same as the original 2016 model, now favored by celebrities, the 'A' version boasts a price hike from $210 to $379, along with downgrades: microSD card support instead of full-size SD, and the removal of Wi-Fi transfer and printing capabilities. Despite the increased price and reduced features, Canon hopes to ride the wave of popularity among younger users. However, the success hinges on whether demand will persist if the camera becomes readily available, losing its scarcity value.

(www.theverge.com)

Tech point-and-shoot camera

Microsoft's Massive Layoffs: An AI-Driven Restructuring?

2025-07-19

Microsoft's Massive Layoffs: An AI-Driven Restructuring?

Microsoft's recent layoffs, impacting over 15,000 employees, have sent shockwaves through the tech industry. The cuts, the largest in over a decade, spanned various departments including gaming studios, sales teams, and even AI divisions, affecting veteran employees and long-term contributors. Underlying these layoffs is Microsoft's strategic shift in the AI era, reflecting uncertainty about its future direction. While the company claims to refocus on AI, the brutal execution and insensitive responses have exposed internal management flaws and a lack of respect for employees. This casts a shadow over Microsoft's culture and raises broader questions about the evolving model of tech company growth in the age of AI.

(www.theverge.com)

Tech AI strategy tech industry restructuring

iNaturalist Project Update: 7000+ Observations and Growing!

2025-03-23

After a two and a half year hiatus, an iNaturalist project focused on collecting the first ever photographs of each species has released a journal update. The project boasts over 7,000 observations and 2,000 members. The update reiterates the project rules: 1. Observations must be the first photos of that species ever taken anywhere; 2. Photos must be of a living organism; 3. Sexually dimorphic species or species with distinct life stages are eligible. The project thrives on user contributions and thanks numerous contributors, especially highlighting @borisb's significant contributions to beetle identification and advocacy for the project.

(www.inaturalist.org)

Misc species records

California Passive House Survives Wildfire: Design Details Save the Day

2025-01-16

California Passive House Survives Wildfire: Design Details Save the Day

Amidst the devastating California wildfires, a 2024-built passive house stood unscathed. Architect Greg Chasen attributes its survival to fire-resistant design features aligned with passive house principles. These include the absence of eaves and overhangs, a metal roof with fire-resistant underlayment, and a vegetation-free protected zone. The airtight construction prevented embers from entering, while high-performance glazing and insulation provided further protection. While passive houses have higher upfront costs, their energy efficiency and fire resilience make them an increasingly attractive option.

(www.yahoo.com)

Tech Passive House Fire Resistance

Hedy: Making Textual Programming Easy

2025-01-27

Hedy is a multilingual, gradual textual programming tool designed for classroom use. Supporting 47 languages, it removes the barrier to entry for non-English speakers. Hedy's gentle learning curve introduces programming concepts and syntax incrementally, making it easy for students to master programming skills. Teachers can utilize built-in lesson plans or customize their own. Hedy can be used to create interactive stories, drawings, games, and apps, broadening the applications of programming.

(www.hedy.org)

Development textual programming multilingual programming

Board Exam Scores Predict Patient Outcomes: A Large-Scale Study

2025-03-01

Board Exam Scores Predict Patient Outcomes: A Large-Scale Study

A new study from Harvard Medical School and the American Board of Internal Medicine (ABIM) reveals a significant link between internal medicine board certification exam scores and patient outcomes. Patients of physicians scoring higher on the exam had lower 7-day mortality rates and readmission rates, suggesting the exam effectively assesses clinical competence. The study analyzed data from nearly 7,000 newly trained hospitalist physicians, controlling for factors like hospital resources and patient populations. While in-training milestone ratings showed no correlation with patient outcomes, the research highlights the importance of evidence-based assessment in physician training.

(hms.harvard.edu)

Tech medical exams patient outcomes

Modelica Association: Efficiently Modeling Complex Systems

2024-12-16

The Modelica Association promotes the Modelica language and its associated tools. Modelica is an object-oriented language for modeling and simulating complex cyber-physical systems, particularly adept at acausal modeling of reusable components governed by mathematical equations. The association provides language specifications, tools, libraries, and community support to enable users to efficiently model systems.

(modelica.org)

Development system modeling object-oriented

Metaphorical Brain Talk in Psychiatry: A Historical and Contemporary Perspective

2025-09-07

This essay examines the persistent use of "metaphorical brain talk" in psychiatry, where mental illnesses are explained using simplistic notions of brain structure or dysfunction. From early 20th-century critiques by influential figures like Adolf Meyer and Karl Jaspers, to more contemporary examples involving researchers like Paul Meehl and Nancy Andreasen, the essay traces the enduring presence of this metaphorical language. Despite advances in neuroscience, phrases like "synaptic slippage" and "broken brain" remain commonplace. The author uses the monoamine neurotransmitter hypothesis as a case study, highlighting its limitations in explaining disorders like schizophrenia, mania, and depression. A real-world anecdote illustrates the impact of such metaphorical explanations on patients and the public. The essay concludes by noting that the pursuit of external funding and pharmaceutical advertising have exacerbated the prevalence of this phenomenon.

(www.nature.com)

AI psychiatry metaphor

The Surprising Secrets Hidden in the Entropy of a Mixture

2025-07-01

This article delves into the relationship between the entropy of a mixture of probability density functions and its interpolation factor. The author reveals that entropy, as a function of probabilities, is concave, and this concavity is directly tied to the mutual information between the two distributions. By introducing a Bernoulli variable and the concept of conditional entropy, the article elegantly explains how mutual information quantifies the change in the expected surprisal of a prediction given knowledge of the mixture factor. Furthermore, it introduces a novel concept, 'proclivity', connecting it to KL divergence and cross-entropy. The article also discusses Jensen-Shannon divergence and the Neyman χ² divergence appearing in higher-order Taylor expansions. Ultimately, it concludes that the entropy function of the mixture completely describes the distribution of likelihood ratios between the two probability distributions, offering a fresh perspective on understanding the relationship between probability distributions.

(cgad.ski)

AI KL Divergence

Profitable Startups: The Underrated Path to Success

2025-02-21

Profitable Startups: The Underrated Path to Success

For years, startups prioritized growth above all else, viewing profitability as secondary. Linear, however, demonstrates a different path. By maintaining a lean team focused on building a superior product, they achieved profitability within a year and have sustained it since. The author argues that smaller teams are more efficient, while rapid expansion often diminishes efficiency and product quality. Profitability offers not just financial freedom, but the crucial ability to focus on value creation rather than fundraising. The article advocates for startups to prioritize metrics like revenue per employee and to rationally manage team size based on their risk profile and market conditions, enabling earlier profitability and control over their destiny.

(linear.app)

Startup profitability

The Design System Dilemma for Rails Apps in 2025

2025-04-10

Choosing a well-made design system for your application should be a simple task in 2025, yet for Rails apps, it's not. The author, building Business Class, faced this dilemma. Initial attempts with Bulma and Tailwind proved unsatisfactory. The article explores several options: shadcn/ui (requiring Rails integration), daisyUI (lightweight but lacks JavaScript), Flowbite (officially supports Rails, but not fully open-source), Preline (feature-rich, freemium), and RubyUI (built for Ruby, but uses Phlex and requires leaving ERB). Ultimately, the author concludes that continuing with a Tailwind-based approach, either leveraging a pre-built UI library or building a custom theme, is the best path forward.

(businessclasskit.com)

Development Design System

The Philosophy of Coroutines: A Programmer's Musings

2025-03-27

This article delves into the philosophy of coroutines through the lens of the author's personal journey. From early days simulating coroutines in C with preprocessor tricks to the advent of native C++20 coroutines, the author shares insights into their use and advantages. A comparison of coroutines versus state machines and threads highlights their flexibility, debuggability, and ease of cleanup, particularly beneficial for sequential tasks like network protocols and data stream processing. The author explores various coroutine implementations, optimization techniques using queues and pre-filters, and offers a glimpse into the future of coroutines.

(www.chiark.greenend.org.uk)

Development

ForgeFed: Decentralizing Code Collaboration

2025-08-14

ForgeFed is a federation protocol for software forges, aiming to break the dominance of large, centralized platforms. Built on ActivityPub, it enables interoperability between different code hosting sites, issue trackers, code review applications, and more. This means you can host your code anywhere and still interact with projects on other platforms without needing separate accounts. ForgeFed empowers users, creating a free, connected, and secure collaboration network, independent of single company policies or platform shutdowns.

(forgefed.org)

Development

US Officially Withdraws from the World Health Organization

2025-01-21

US Officially Withdraws from the World Health Organization

On January 20, 2025, the US President signed an executive order formally withdrawing the United States from the World Health Organization (WHO). The order cites the WHO's mishandling of the COVID-19 pandemic and other global health crises, failure to adopt necessary reforms, and susceptibility to undue political influence from member states. The US also alleges unfairly high financial contributions are demanded from it. This action will halt US funding to the WHO, recall personnel, and seek alternative international partners to assume previous WHO activities. Negotiations on the WHO Pandemic Agreement and amendments to the International Health Regulations will also cease.

(www.whitehouse.gov)

Tech US WHO Withdrawal

Turner: A Misunderstood Genius

2025-05-08

Turner: A Misunderstood Genius

J.M.W. Turner, the master of British landscape painting, lived a life shrouded in mystery. A child prodigy who achieved early fame, his later works were so radical they baffled his contemporaries, even suggesting mental illness to some. He lived a secretive life in modest lodgings, despite amassing great wealth and numerous properties. Turner's relentless pursuit of landscape stemmed from personal travels and his admiration for Claude Lorrain, culminating in his unique atmospheric landscapes that conveyed awe through light, color, and atmosphere. While controversial in his time, he's now celebrated as a precursor to avant-garde art, his extraordinary achievements securing his place in art history.

(www.newstatesman.com)

Design Turner landscape painting

The Rise of Hyperlegibility: Information Overload in the Modern Age

2025-03-28

The Rise of Hyperlegibility: Information Overload in the Modern Age

Once, accessing information required Herculean efforts, like scaling a treacherous cliff to find an inscription. Now, information is readily available, even unavoidable. The author coins the term "Hyperlegibility" to describe this ease of information access and dissemination. This stems not only from technological advancements but also from people's proactive pursuit of clarity. To stand out in competition, they openly share ideas and strategies. It's a game-theoretic outcome: information is no longer a scarce resource, yet it shapes new competitive landscapes, giving rise to a new generation of "Hyperlegibility Natives" with supercharged information processing abilities.

(www.notboring.co)

Misc information dissemination

HP's 15-Minute Mandatory Wait Times for Tech Support Backfire Spectacularly

2025-02-21

HP's 15-Minute Mandatory Wait Times for Tech Support Backfire Spectacularly

HP implemented a controversial policy of forcing 15-minute wait times on tech support calls in several European countries. The goal was to push customers towards online self-service options. However, the policy backfired, causing significant customer frustration and internal backlash. After facing criticism, HP reversed the policy, admitting that timely access to live support was paramount. The incident highlights a disconnect between management decisions and the impact on both customers and employees.

(arstechnica.com)

Tech tech support

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