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Critique of Misleading Benchmarks in Formal Methods

2025-05-22

Critique of Misleading Benchmarks in Formal Methods

A paper uses misleading statistics when applying formal methods to verify operating system code. The author criticizes the flawed methodology of simply comparing "proof-to-code ratios", as it ignores the completeness and complexity of specifications. The article points out that proof size has an approximately quadratic relationship with specification size, and specification complexity is far more important than code size. By analyzing multiple verified systems, the author presents more comprehensive data, including code size, specification size, and proof size, and highlights the role of modularity in reducing verification costs, but also notes that complex systems like seL4 are difficult to modularize. Ultimately, the author calls on the research community to stop using the meaningless "proof-to-code ratio" metric.

(microkerneldude.org)

Development

Creatine's Muscle-Building Benefits Overestimated, New Research Suggests

2025-04-02

Creatine's Muscle-Building Benefits Overestimated, New Research Suggests

New research challenges the widely held belief that creatine supplements significantly aid muscle growth. A 12-week clinical trial involving 54 participants, led by UNSW, found no difference in lean muscle mass gain between those taking the recommended 5g daily dose of creatine and a control group. The study suggests previous research might have overestimated creatine's effects due to methodological flaws, prompting a reassessment of its muscle-building capabilities.

(www.unsw.edu.au)

Tech creatine muscle growth sports supplements

Klavis AI: Effortless Production-Ready MCP Integration

2025-05-05

Klavis AI: Effortless Production-Ready MCP Integration

Klavis AI makes connecting to production-ready MCP servers and clients at scale effortless. Integrate with your AI application in under a minute and scale to millions of users using their open-source infrastructure, hosted servers, and multi-platform clients. Klavis AI lowers the barrier to using MCPs by providing stable production-ready MCP servers, built-in authentication, high-quality servers, MCP client integration, 100+ tool integrations, and customization options. Create new MCP server instances via API key and set up auth tokens or use their in-house OAuth flow.

(github.com)

AI Server Integration

Clojure's Elegant Solution to the Expression Problem

2025-09-11

Clojure's Elegant Solution to the Expression Problem

At Strange Loop, Chris Houser presented two Clojure approaches to solving the expression problem: multimethods and protocols. The presentation delved into the pros and cons of each method, showcasing their implementation in Clojure. Houser, a co-author of "The Joy of Clojure" and a core contributor to the language, powerfully demonstrated Clojure's flexibility and expressiveness.

(www.infoq.com)

Development Expression Problem Multimethods

Study: TikTok Likely a Vehicle for Chinese Propaganda

2025-01-06

Study: TikTok Likely a Vehicle for Chinese Propaganda

A new study suggests TikTok's algorithm may favor content supporting the Chinese Communist Party (CCP) over critical viewpoints. Researchers found TikTok surfaces more pro-CCP content than competing platforms, even when anti-CCP content garners higher user engagement. The study also reveals that frequent TikTok users hold more favorable views of China. This comes as the Supreme Court prepares to hear arguments on a potential TikTok ban in the US, fueling concerns about the platform's role in Chinese propaganda.

(gizmodo.com)

Tech Chinese Propaganda Algorithmic Bias

arXivLabs: Experimental Projects with Community Collaborators

2025-02-10

arXivLabs is a framework enabling collaborators to develop and share new arXiv features directly on the website. Individuals and organizations involved share arXiv's values of openness, community, excellence, and user data privacy. arXiv only partners with those who adhere to these principles. Got an idea to enhance the arXiv community? Learn more about arXivLabs.

(arxiv.org)

Development

DIY AI by Hand Exercises: A Google Sheets Tool

2025-02-07

DIY AI by Hand Exercises: A Google Sheets Tool

For months, the author has collaborated with AI educators to customize their "AI by Hand" exercises, which are now used in classrooms worldwide. The manual customization process led to occasional errors, happily caught by attentive students. To streamline creation and allow others to generate custom exercises, the author developed a Google Sheets-based tool enabling users to specify numbers and solutions. This tool is still in its early stages, and feedback is welcome.

(www.byhand.ai)

AI AI Education Open-source Tool

Building a Website on a Raspberry Pi: A 15-Step Guide

2025-01-19

Building a Website on a Raspberry Pi: A 15-Step Guide

This comprehensive tutorial details the author's journey of building a personal website on a Raspberry Pi. It covers everything from acquiring the necessary hardware and setting up a headless Pi to installing an Apache server, obtaining an HTTPS certificate, and registering a domain name. The author walks through HTML/CSS development, virtual host configuration, backups, SEO optimization using Google Search Console, user tracking with GoatCounter, bot protection with fail2ban, automatic updates, and monitoring CPU/RAM usage. The guide culminates with a fascinating account of stress-testing the website via Hacker News and the lessons learned from community feedback, making it a valuable resource for aspiring web developers.

(mirawelner.com)

Development Website Development Web Server

OpenStreetMap Launches Vector Tiles

2025-07-24

The OpenStreetMap Foundation announces the deployment of vector tiles on its servers and the release of the layer on the OSM website. This follows over a year of development, including months of testing and optimization for speed and reliability. The result is a sharper, faster visual experience. Developers can leverage this vector data source to create custom styles and utilize the new OSMF-hosted tiles. Further evolution of the Shortbread spec and styles is planned, with community feedback encouraged.

(blog.openstreetmap.org)

Tech Vector Tiles

MTerrain: Godot Engine's Optimized Terrain System for Massive Worlds

2025-05-06

MTerrain: Godot Engine's Optimized Terrain System for Massive Worlds

MTerrain is a highly optimized terrain system and editor for Godot Engine, capable of handling terrains up to 16km x 16km. It utilizes an octree-based LOD system and features a terrain shader with support for splatmapping, bitwise, and index mapping. Further functionalities include navigation integration, a grass system with collision detection, a path system using Bezier curves for deforming roads and rivers, and comprehensive editor tools for sculpting, painting, and importing/exporting heightmaps and splatmaps. While requiring some learning, tutorial videos are provided to guide users through terrain sculpting and texture painting.

(github.com)

Development Terrain Editor

Foldable Wireless Multimodal Microneedle Drug Delivery System (fMMD): Design and Application

2025-02-25

Foldable Wireless Multimodal Microneedle Drug Delivery System (fMMD): Design and Application

Researchers have developed a foldable wireless multimodal microneedle drug delivery system (fMMD) integrating electrocardiography (ECG), photoplethysmography (PPG), and drug delivery functionalities. The fMMD features a serpentine interconnect island-bridge design for flexibility and stretchability, enabling conformal skin contact. Wireless data transmission is achieved via Bluetooth Low Energy (BLE), allowing for closed-loop feedback control by triggering drug release based on physiological signals such as heart rate. The system demonstrates promising performance in multimodal monitoring and drug delivery, holding potential for cardiovascular disease diagnosis and treatment.

(www.nature.com)

Tech drug delivery

Deep Dive into Zig's Memory Safety Mechanisms

2025-05-10

Deep Dive into Zig's Memory Safety Mechanisms

Memory safety is a cornerstone of Zig's design. This article delves into Zig's sophisticated approach to preventing common memory-related errors while retaining the performance benefits of manual memory management. Features explored include eliminating hidden control flow, comprehensive error handling, compile-time safety checks, runtime bounds checking, the `defer` statement, optional types, build modes, and advanced features like sentinel-terminated arrays and explicit allocators. Zig's comptime system allows for compile-time function evaluation, enabling powerful metaprogramming while maintaining safety. These mechanisms significantly reduce risks associated with memory leaks, buffer overflows, and dangling pointers, making Zig a robust choice for systems programming.

(gencmurat.com)

Development

NYC Congestion Pricing: From Hate to Love

2025-06-20

NYC Congestion Pricing: From Hate to Love

New York City speech therapist Maura Ryan initially dreaded the new congestion pricing policy, as she drives across the East River multiple times a day to see patients in Queens and Manhattan. However, since its implementation, her opinion has changed. A journey that once took an hour or more now takes only 15 minutes. Many New Yorkers have echoed her sentiment, shifting from strong opposition to support.

(www.economist.com)

Misc NYC traffic policy shift

OpenAI to Integrate Sora AI Video Generation into ChatGPT

2025-02-28

OpenAI plans to integrate its AI video generation tool, Sora, into its popular chatbot app, ChatGPT. Currently a standalone web app, Sora will be expanded to more platforms with enhanced capabilities. Initially launched separately to maintain ChatGPT's simplicity, future ChatGPT users may be able to directly generate Sora videos, potentially boosting paid subscriptions. OpenAI also plans a Sora-powered image generator and a new version of Sora Turbo, further expanding its AI creative capabilities.

(techcrunch.com)

AI

Aquariums for Cats: Mental Stimulation and Stress Relief

2025-09-14

Aquariums for Cats: Mental Stimulation and Stress Relief

An aquarium isn't just a pretty addition to your home; it's a fantastic tool for improving your cat's mental and physical well-being. The calming movement and visual stimulation of the fish provide endless entertainment, engaging your cat's senses and reducing stress. Watching the fish encourages curiosity and exploration, enhancing cognitive function and preventing destructive behaviors. The soothing aquatic environment promotes relaxation, improves sleep quality, and offers a natural stress reliever. Discover the perfect blend of feline playfulness and aquatic serenity.

(cataquariums.com)

Misc aquarium pet wellbeing

Open Source Local Control for Daikin Air Conditioners

2025-07-21

Open Source Local Control for Daikin Air Conditioners

Tired of Daikin's slow, cloud-dependent Wi-Fi control? This open-source project offers a solution! It provides a local control module with web interface, MQTT, and Home Assistant integration, eliminating the need for cloud connectivity. PCB designs are available, and pre-built modules are sold on Tindie and Amazon UK. The project uses a GPL license, allowing forking and contributions, but prohibits commercial sales using the project's name and trademarks. The module is compatible with various Daikin models, offering features like automatic protocol detection, remote monitoring, and logging.

(github.com)

Hardware Daikin Air Conditioner

Shark-Skin Inspired Laser Etching Creates Antibacterial Cutting Boards

2025-03-11

Shark-Skin Inspired Laser Etching Creates Antibacterial Cutting Boards

Researchers have developed a novel solution to prevent bacterial buildup on food processing surfaces. Inspired by the naturally antimicrobial textures of shark skin and cicada wings, they used lasers to etch micro- and nanoscale textures onto metal surfaces. This prevents bacteria from attaching, effectively eliminating the need for constant cleaning and reducing biofilm formation. The laser texturing technique avoids the use of chemicals, making it a safer and more sustainable alternative. Future work involves machine learning models to optimize the process for industrial applications.

(www.morningagclips.com)

Tech antibacterial materials

Tech Ethics Crisis: Are Big Tech Companies Doing Good?

2024-12-29

Moshe Y. Vardi, a professor at Rice University, revisits his previous stance on the tech ethics crisis. Initially believing that laws and regulations were sufficient to address computing's negative impacts, he now argues that a genuine ethical crisis exists, given the growing power of tech corporations and the ethical issues inherent in their business models. He questions the ethics of working for Big Tech, urging tech workers to consider the balance between self-interest and the public good, and to refer to ACM's Code of Ethics, emphasizing the support of the public good. The article discusses cases like Uber, illustrating how employees, even unknowingly, can participate in unethical practices. Ultimately, Vardi concludes that the tech industry needs a serious self-reflection to address its ethical dilemmas.

(cacm.acm.org)

AI tech ethics big tech public good

arXivLabs: Building New arXiv Features with Community Collaborators

2025-02-09

arXivLabs is a framework that enables developers to collaborate with the arXiv community to build and share new features directly on the arXiv website. Participants must adhere to arXiv's core values of openness, community, excellence, and user data privacy. If you have an idea for a project that will add value to the arXiv community, learn more about arXivLabs.

(arxiv.org)

Development

Spooky Quantum Entanglement Found Inside Protons

2025-01-08

Spooky Quantum Entanglement Found Inside Protons

Scientists have used high-energy particle collisions to discover, for the first time, quantum entanglement within individual protons. This 'spooky action at a distance' occurs even at the incredibly small scale of a proton, challenging our understanding of its internal structure. The team employed a 2017-developed technique analyzing the 'messiness' of particle sprays after collisions to detect entanglement. Results showed quarks and gluons are maximally entangled, offering insights into the strong interactions within protons and the building blocks of atomic nuclei. This discovery could significantly impact future research in nuclear physics, such as investigating how the nuclear environment affects entanglement within protons.

(www.space.com)

Tech proton high-energy physics quarks and gluons Quantum Entanglement Particle Physics

20 Years of Firefox Code Signing: From Manual to Automated

2025-02-07

This article chronicles the evolution of Firefox code signing at Mozilla over the past 20 years. Initially, the process was incredibly manual, requiring physical machines, USB keys, and extensive hand-crafted steps. Through technological advancements, Mozilla automated signing, moving from improved scripts to dedicated signing servers, and finally adopting Taskcluster and the Autograph service. Today, Firefox code signing happens thousands of times a day, significantly enhancing software security.

(hearsum.ca)

Development

AI Chatbots: Privacy Concerns Mirror Online Tracking, But Worse

2025-09-06

AI Chatbots: Privacy Concerns Mirror Online Tracking, But Worse

AI chatbots present even greater privacy risks than online tracking. Conversations reveal intimate details, including thought processes and communication styles, vulnerable to commercial and ideological manipulation. Unlike search engines, AI chatbots are more persuasive and can lead users into delusional spirals. While DuckDuckGo offers Duck.ai for protected conversations, the industry largely lacks privacy safeguards, with data breaches rampant. The article urges Congress to quickly legislate to protect user privacy, preventing a repeat of online tracking's history and the unchecked proliferation of AI surveillance.

(gabrielweinberg.com)

Tech privacy legislation

VW's Pay-to-Unlock Horsepower Feature Sparks Debate

2025-08-16

Volkswagen is offering a paid upgrade to unlock extra horsepower in its vehicles, sparking controversy. Owners question why this power is present but requires additional payment. VW argues this mirrors traditional options for different engine power, but shifted to a post-purchase choice. However, unofficially unlocking this power ('jailbreaking') could void warranties or invite legal action. This practice isn't unique to VW; BMW and Polestar have also offered similar paid performance upgrades.

(www.autoexpress.co.uk)

Tech pay-to-unlock vehicle performance

The AI Revolution: A Coder and Writer's Existential Crisis

2025-08-14

A seasoned programmer and author grapples with the existential threat posed by rapidly advancing AI. He prides himself on his ability to clearly explain complex technical concepts, a skill evidenced by the success of his books. However, the rise of AI threatens his livelihood, as AI is already proving effective at technical writing. While acknowledging AI's capabilities in explaining technical topics, he questions AI's ability to fully replace human authors, especially regarding style and nuance. He's planning a new book, leveraging AI for assistance, yet remains uncertain about his future role in an AI-dominated world, questioning his value and purpose.

(dusty.phillips.codes)

Development Existential Crisis

UK Parliament Narrowly Approves Assisted Dying Bill

2025-06-20

UK Parliament Narrowly Approves Assisted Dying Bill

The UK Parliament narrowly passed a bill legalizing assisted dying for terminally ill individuals after a heated debate. The bill, which allows those with less than six months to live and a terminal illness to end their lives under strict conditions, places the UK among a small number of countries permitting assisted dying. The decision sparks complex discussions about autonomy, ethics, and resource allocation. Supporters argue it offers a compassionate choice for the terminally ill, while opponents express concerns about ethical implications and call for improvements in palliative care. The bill now moves to the House of Lords for further scrutiny.

(edition.cnn.com)

Misc assisted dying euthanasia UK Parliament

Google SRE's Evolution: From Error Budgets to Systems Theory

2025-01-03

Google SRE's Evolution: From Error Budgets to Systems Theory

Google's Site Reliability Engineering (SRE) team has undergone a significant evolution over the past 25 years. Initially relying on methods like Service Level Objectives (SLOs), error budgets, and isolation strategies, Google's SRE team has shifted towards systems theory and control theory, adopting the STAMP framework to address increasingly complex systems and emerging challenges. STAMP shifts the focus from preventing individual component failures to understanding and managing complex system interactions. This article uses a real-world case study to illustrate how STAMP helps Google prevent system-level failures and explores its future applications across the tech industry.

(www.usenix.org)

Development Systems Theory

Building a Cloud from Scratch: Automation at Scale

2025-03-24

Building a Cloud from Scratch: Automation at Scale

This blog post details Railway's journey in building their own cloud infrastructure from the ground up. Their first hurdle was mapping physical hardware to OS-visible device names. They leveraged the Redfish API to gather hardware information and automated configuration using MetalCP and Temporal workflows. For OS installation, they cleverly combined Pixiecore, the Debian Installer, and Claude AI for one-click deployment. Finally, they built a highly reliable L3 network using BGP unnumbered and FRR, achieving scalability and automated management.

(blog.railway.com)

Tech

Visual Story-Writing: Interactive Storytelling through Visual Manipulation

2025-09-08

Visual Story-Writing: Interactive Storytelling through Visual Manipulation

Visual Story-Writing is a system that lets users edit stories by manipulating visual representations of events, characters, and their actions. It uses GPT-4 to suggest text edits based on changes to the visualization (e.g., moving a character, connecting characters). Built with TypeScript, React, and Vite, it requires an OpenAI API key and includes video tutorials and an arXiv paper.

(github.com)

Development

Craftax: A Lightning-Fast JAX-Based Benchmark for Open-Ended RL

2025-02-11

Craftax: A Lightning-Fast JAX-Based Benchmark for Open-Ended RL

Craftax is an RL environment entirely written in JAX, reimplementing and significantly extending the game mechanics of Crafter, drawing inspiration from roguelikes like NetHack. Compatible with the gymnax interface, it integrates easily with JAX frameworks like PureJaxRL and JaxUED. Accepted as a spotlight paper at ICML 2024, Craftax offers CPU and GPU/TPU support, along with tutorials and baselines. Installation instructions and usage examples are provided.

(github.com)

Development Game Environment

Visualizing Mathematical Proof: Insights from Lean Blueprints

2025-05-11

Lean Blueprints, a project planning tool inspired by mathematicians' blueprint method for formalizing proofs, offers unique insights into the proof process. It uses a graph where nodes represent definitions, lemmas, and theorems, with colors indicating their status (green: proven, blue: stated but unproven, black: unwritten). By tracking version control of Lean projects (e.g., Terrence Tao's formalization of the PFR conjecture), we can visualize the evolution of proofs, revealing how mathematicians work and providing data for building tools to assist them. This visualization offers previously hidden insights into how mathematical proofs are constructed.

(kirancodes.me)

Development Formal Proof

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