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AI-Powered Turtle Artist in ROS Sim

2025-05-31

AI-Powered Turtle Artist in ROS Sim

turtlesim_agent is an AI agent that transforms the classic ROS turtlesim simulator into a creative canvas driven by natural language. Leveraging LangChain, it interprets text instructions and translates them into visual drawings, turning the simulated turtle into a digital artist. Users describe shapes or drawing intentions in plain English; the AI reasons through the instructions and executes them using turtlesim's motion commands. This project explores how large language models interact with external environments to exhibit creative behavior.

(github.com)

AI

Bohr, Kramers, and Slater: A Failed but Influential Attempt at Quantum Mechanics

2025-02-03

Bohr, Kramers, and Slater: A Failed but Influential Attempt at Quantum Mechanics

In 1924, Niels Bohr, Hendrik Kramers, and John Slater proposed a radical theory of quantum radiation, attempting to resolve the crisis facing quantum mechanics at the time. The theory boldly hypothesized that the law of conservation of energy might not hold at the quantum level. Although quickly disproven by experiment, it reflected the prevailing confusion and exploration within the physics community regarding quantum mechanics, foreshadowing the long-standing debate between Bohr and Einstein over interpretations. The paper also touched upon the 'pilot-wave' idea, later becoming a significant interpretation of quantum mechanics (like the de Broglie-Bohm interpretation), leaving a unique mark on the history of quantum mechanics and spurring deeper exploration for understanding it.

(physicsworld.com)

Tech Bohr energy conservation

My Number-Color-Sound Associations: A Programmer's Mnemonic System

2025-03-03

The author shares his unique system of associating numbers, colors, and sounds, stemming from childhood experiences learning about computers and mnemonic systems. He maps numbers 0-9 to specific colors and IPA phonetic symbols, explaining the origins in IBM CGA color codes and a phonetic mnemonic system. The author demonstrates how these associations help remember bus routes and flight numbers, noting the system, while not essential daily, makes arbitrary numbers and words more vivid and engaging.

(susam.net)

Misc Mnemonic System Color Association

Arbital Shuts Down: The End of an AI Safety Research Organization

2024-12-27

Arbital, an organization focused on AI safety research, recently announced its closure. This news sent shockwaves through the AI safety community. Known for its rigorous research and forward-thinking perspectives, Arbital's closure represents a significant loss to the field. While Arbital hasn't publicly disclosed the reasons for its closure, industry insiders speculate it may be related to funding issues or a shift in research direction. Arbital's closure serves as a reminder of the many challenges facing AI safety research, requiring more resources and sustained effort.

(arbital.com)

AI Artificial intelligence research

Defense Secretary's Wife Spotted at Top-Secret Military Briefings

2025-03-30

Defense Secretary's Wife Spotted at Top-Secret Military Briefings

Defense Secretary Pete Hegseth's wife, Jennifer Rauchet, has been observed attending high-level military intelligence meetings, raising concerns about security protocols. This follows the Pentagon's Signal leak scandal where Hegseth added a journalist to a group chat discussing war plans. While spouses of senior officials often hold low-level clearances, the Pentagon has not confirmed Rauchet's clearance status. Adding to the controversy, Hegseth's brother, Phil, serves as a DHS liaison and has accompanied him on official trips, sparking debate about potential nepotism. The incidents have reignited questions about the security of America's military secrets and Hegseth's leadership.

(www.thedailybeast.com)

Tech military secrets nepotism

Meta and Oakley Team Up for Performance-Focused Smart Glasses

2025-06-20

Meta and Oakley Team Up for Performance-Focused Smart Glasses

Meta and Oakley have unveiled the Oakley Meta HSTN, a limited-edition smart glasses model priced at $499, available for preorder starting July 11th. Additional Oakley models featuring Meta's technology will launch later this summer, starting at $399. The glasses boast a front-facing camera, open-ear speakers, and microphones, enabling music listening, calls, and Meta AI interaction. Meta AI leverages the camera and mics for answering questions about the wearer's surroundings and real-time language translation. Designed with athletes in mind, the Oakley Meta HSTN features IPX4 water resistance, double the battery life of Meta Ray-Bans (8 hours plus 48 hours from the charging case), and a 3K video-capable camera. Five frame and lens combinations are available, with prescription options. Meta aims to expand into the performance market, hinting at future product releases.

(www.theverge.com)

Tech

Age LAN Server: Play Age of Empires Multiplayer Offline

2025-04-02

Age LAN Server: Play Age of Empires Multiplayer Offline

Age LAN Server is a web server enabling offline multiplayer LAN gameplay for Age of Empires: Definitive Edition, Age of Empires II: Definitive Edition, and Age of Empires III: Definitive Edition. Even if official servers are down, LAN functionality remains. Currently in maintenance mode, focusing on bug fixes and dependency updates. A custom launcher is still required to bypass online restrictions for complete offline play. Features include map transferring, game restoration, data mods, lobby chat, and crossplay between Steam and Xbox. However, some features like achievements and leaderboards are not yet implemented. The server supports Windows, Linux, and macOS.

(github.com)

Game LAN Age of Empires

Hundreds of Seemingly Benign Websites Uncovered as Part of a CIA Covert Operation

2025-05-26

A leaked document reveals hundreds of seemingly ordinary news and entertainment websites that were secretly operated by the CIA. These sites, publishing in multiple languages and covering diverse topics from sports and technology to finance, were used for intelligence gathering, propaganda dissemination, or other covert purposes. Investigators uncovered clues by analyzing website code, images, and domain registration information. The sheer scale of the operation is staggering and raises concerns about online security and information authenticity.

(ourbigbook.com)

Tech covert operation

Trump Administration Orders End to Federal Remote Work

2025-01-24

Trump Administration Orders End to Federal Remote Work

President Trump issued an executive order mandating all federal agencies to terminate remote work arrangements within 30 days, forcing employees back to in-person work. This move addresses the high vacancy rate in federal offices stemming from pandemic-era remote work, citing economic losses and a "national embarrassment." While some exceptions are allowed, the order is considered forceful and has sparked controversy.

(arstechnica.com)

Tech federal government

The Paradigm Shift in AI Product Development: From Determinism to Probability

2025-08-22

The Paradigm Shift in AI Product Development: From Determinism to Probability

This article explores how general-purpose artificial intelligence (AGI) is disrupting the tech industry, particularly in software design, engineering, building, and growth. Traditional software development follows a deterministic model: known inputs produce expected outputs. However, AGI models are probabilistic, with outputs based on statistical distributions and inherent uncertainty. This renders traditional software engineering methods and metrics (like SLOs) obsolete. The author advocates for an empirical approach, using scientific methods and data-driven decision-making to build and iterate AI products, rather than relying on traditional engineering thinking. This requires organizations to transition from engineering to science, centering on data, and breaking down siloed departments for a holistic systems view.

(giansegato.com)

Development

GNU Free Documentation License Explained: A License for Free Documents

2025-05-18

The GNU Free Documentation License (GFDL) ensures the freedom to copy, distribute, and modify documents, commercially or non-commercially. Employing a 'copyleft' approach, it guarantees derivative works remain free. The GFDL details copyright notices, invariant sections, cover texts, and more, balancing author rights with free document distribution. It covers bulk copying, modifications, combining documents, translation, and violation handling. While designed for free software documentation, the GFDL applies to any textual work.

(dezyne.org)

Development Free Documentation License

Goravel: A Laravel-inspired Go Web Framework

2025-03-09

Goravel: A Laravel-inspired Go Web Framework

Goravel is a full-featured, highly scalable Go web application framework designed to help Go developers quickly build applications. Its design philosophy mirrors Laravel's, easing the learning curve for PHP developers. The project is open-source and welcomes stars, pull requests, and issues! Goravel boasts a rich feature set including HTTP authentication and authorization, ORM, migrations, logging, caching, gRPC, Artisan console, task scheduling, queues, file storage, mail, validation, mocking, hash cryptography, Carbon package integration, development and testing tools, localization, and sessions. Documentation and example projects are available; contributions to the documentation and development are encouraged.

(www.goravel.dev)

Development

Dating App Deep Dive: The Untold Story of User Behavior and Retention

2025-02-04

An engineer who spent months working inside a dating app reveals its inner workings. The article details user ranking algorithms (based on like-to-pass ratio, with significant gender differences), user behavior (men prioritize looks, women prioritize personality, but both lean towards entertainment rather than serious dating), recommendation algorithms (personalization over simple recommendations), retention (tied to likes and matches, harder to improve for men), monetization (men pay for more likes), and user demographics (younger users prioritize looks, older users prioritize personality). The author argues that a dating app's success lies in precise personalization and effective retention strategies, not complex algorithms or features.

(blog.luap.info)

Misc

Insane Compression: Shrinking 10GB of RATP Transit Data to 530KB with Rust

2025-03-03

This weekend project started by browsing the open-data repository of Paris’ public transport network. The author noticed a section on data reuse, featuring external projects using this open data, particularly the RATP status website which visualizes historical disruptions. The GitHub repository contains JSON files queried every 2 minutes for almost a year, totaling over 10GB. The author wondered if this could be compressed better. This post details how they used Rust's interning design pattern to achieve a 2000x compression! Techniques explored include optimizing the interner structure, tuning the data schema, and leveraging interning in serialization. The result? A staggering reduction from 1.1GB of JSON files to a mere 530KB.

(gendignoux.com)

Development Data Compression Interning

Jank: Seamless C++ Interop in Clojure, Achieved by a Solo Dev

2025-07-12

Jank, a Clojure runtime, has made significant strides in achieving seamless interoperability with C++. Through manual memory management, enhanced type systems, and opaque boxes, the developer enables direct C++ code calls within Clojure. Real-world examples showcased include printing "Hello, world!" via C++ streams and parsing JSON files using the JSON for Modern C++ library. Future work focuses on packaging, distribution, bug fixes, and ultimately, an alpha release.

(jank-lang.org)

Development Interop

Critical Vulnerability in GitHub MCP Integration Leaks Private Repo Data

2025-05-27

Critical Vulnerability in GitHub MCP Integration Leaks Private Repo Data

Invariant has discovered a critical vulnerability in the widely-used GitHub MCP integration (14k GitHub stars). A malicious GitHub Issue allows attackers to hijack a user's agent, forcing it to leak data from private repositories. This vulnerability, one of the first discovered by Invariant's automated security scanners for detecting 'Toxic Agent Flows,' involves injecting malicious prompts into a public repository. When a user queries their agent, it fetches the issue and is injected, potentially pulling private repo data into context and leaking it to a public repository accessible to the attacker. Mitigation strategies include granular permission controls and continuous security monitoring. Even highly aligned AI models are susceptible, highlighting the need for system-level security measures.

(invariantlabs.ai)

Tech Agent Security

My Programming Habits Have Changed Thanks to Claude Code: Farewell Python, Hello Type Safety

2025-08-04

My programming habits have drastically changed since using Claude Code. For over 10 years, Python was my go-to language, but now I'm comfortably managing projects in TypeScript, Rust, and Go, even though I'm not fully fluent in them. The safety guarantees of typed, compiled languages make them surprisingly well-suited for 'vibe coding,' a style I previously associated solely with Python. Paradoxically, with larger projects, Claude Code combined with languages like Rust is faster and safer than with Python, purely due to AI-assisted development. For example, refactoring large parts of our TypeScript frontend code, Claude Code's integration with tsc ensures compile-time safety, letting me make substantial changes (3-5k lines) in hours without breaking anything. While LLMs aren't perfect, they offer the speed of Python prototyping without its drawbacks, leading me to predict decreased Python adoption in production deployments.

(solmaz.io)

Development

Revolutionary Robot Simulator Genesis Unveiled: 430,000 Times Faster Training

2024-12-23

Revolutionary Robot Simulator Genesis Unveiled: 430,000 Times Faster Training

Researchers at Carnegie Mellon University have unveiled Genesis, an open-source robot simulation system that trains robots 430,000 times faster than real-world training. Genesis leverages graphics cards to run up to 100,000 simulations concurrently, drastically reducing the time needed for robots to learn complex tasks like object manipulation, walking, and tool use. Furthermore, the team is developing an AI agent capable of generating 3D physics simulations from text prompts, simplifying environment creation and reducing costs. Written in Python and open-sourced, Genesis represents a significant leap forward in robotics research, democratizing access to high-speed simulation.

(arstechnica.com)

AI robot simulation

HP's FreeDOS Surprise: A Three-Layered OS Mystery

2025-03-03

A user's recent purchase of an HP ZBook laptop with FreeDOS revealed a curious three-layered operating system setup. Boot times were unusually long, with fleeting glimpses of what appeared to be Linux kernel messages before FreeDOS loaded. Investigation uncovered a Debian 9 Linux base running a virtual machine that, in turn, hosted two identical FreeDOS installations. One of the FreeDOS instances was actually an ancient Debian 6.0.3 setup, configured as a rudimentary web kiosk. This convoluted and outdated FreeDOS implementation highlights potential issues with HP's hardware and software compatibility updates.

(blog.tmm.cx)

Hardware

Italy's Privacy Regulator Targets DeepSeek's Data Practices

2025-01-29

Italy's Privacy Regulator Targets DeepSeek's Data Practices

Italy's data protection authority, the Garante, has formally requested information from Chinese AI startup DeepSeek regarding its handling of Italian user data. This follows DeepSeek's recent launch of a ChatGPT competitor, raising concerns about data security and privacy. The Garante demands details on data collection, usage, and storage, with a February 17th deadline. This action highlights Europe's stringent scrutiny of AI companies' data practices and the data privacy challenges in the global AI race.

(www.politico.eu)

Tech

HP Firmware Update Bricking Laser Printers (Even with HP Toner)

2025-03-10

HP Firmware Update Bricking Laser Printers (Even with HP Toner)

HP's firmware update 20250209 for LaserJet MFP M232-M237 printers has caused widespread printing failures, even when using genuine HP toner. Users report Error Code 11 and a flashing toner light, despite cleaning contacts and reinstalling toner cartridges. The update, released March 4th, claimed security and general improvements, but users suspect it intentionally restricts functionality, causing significant frustration and financial losses for small businesses relying on these printers.

(arstechnica.com)

Hardware Printer Firmware Update

Microsoft Bets Big on AI Agents: The Demise of Traditional Business Apps?

2025-08-19

Microsoft Bets Big on AI Agents: The Demise of Traditional Business Apps?

Microsoft executives boldly predict that traditional business applications will be a relic of the past by 2030, replaced by AI-powered "business agents." These AI agents will leverage generative AI and vector databases to dynamically adapt to user needs and optimize workflows in a goal-oriented manner. This prediction has sparked industry debate, with some questioning its optimism and the feasibility of rapid enterprise transformation, while others see it as a major shift requiring businesses to embrace AI to avoid obsolescence. Microsoft plans to gradually transition customers to this new model by offering AI agents as add-on services for existing applications.

(thenewstack.io)

Tech

Improved Atkinson Dithering: Arbitrary Palettes and Linearization

2025-03-13

Improved Atkinson Dithering: Arbitrary Palettes and Linearization

This post details an improved Atkinson dithering algorithm that supports arbitrary color palettes and correct linearization. Unlike previous algorithms limited to black and white palettes, this one directly handles color images, selecting the closest color by computing the Euclidean distance between the pixel and each color in the palette. Furthermore, it incorporates linearization to address overly bright outputs caused by the non-linearity of the sRGB color space, and considers human perception of different color brightnesses. The post also provides links to relevant resources, including implementations and online tools.

(obrhubr.org)

Development dithering algorithm

DeepSeek's V3: Beating Benchmarks on a Budget

2025-01-23

DeepSeek's V3: Beating Benchmarks on a Budget

DeepSeek's new V3 model, trained on a mere 2,048 H800 GPUs—a fraction of the resources used by giants like OpenAI—matches or surpasses GPT-4 and Claude on several benchmarks. Their $5.5M training cost dwarfs the estimated $40M for GPT-4. This success, partly driven by US export controls limiting access to high-end GPUs, highlights the potential for architectural innovation and algorithmic optimization over sheer compute power. It's a compelling argument that resource constraints can, paradoxically, spur groundbreaking advancements in AI development.

(www.vincentschmalbach.com)

AI AI model training GPU limitations compute efficiency

My Adventures with LLM Coding Agents: Level Up Your AI-Assisted Development

2025-08-23

My Adventures with LLM Coding Agents: Level Up Your AI-Assisted Development

This post details a hobbyist's journey using Large Language Model (LLM) coding agents to build software beyond their skill level. The author shares hard-won tips for maximizing efficiency, including effective context management (providing relevant information without overwhelming the model), meticulous design documentation, detailed planning and task breakdown, comprehensive logging for debugging, and defensive Git strategies. The author emphasizes the importance of using tools to extract information from large files, compacting context to avoid losing the big picture, and treating the agent as a tool rather than a collaborator. By following these strategies, the author successfully completed a complex project.

(efitz-thoughts.blogspot.com)

Development

Proposal: Essential Effects for C

2025-01-20

This proposal suggests enhancing C's core type system with a type-and-effect system, requiring functions and blocks to declare the effects of their evaluation. This improves metaprogramming composability and simplifies defining MISRA-style restrictions. The system tracks and checks effects but doesn't handle dynamic effect handling. Three main effect groups are proposed: Local (e.g., local writes), Persistent (e.g., non-local writes), and Control (e.g., non-local control transfers). Static effect checking is achieved by assigning type-and-effect to each statement, expression, and function body, discarding local effects to ensure correct ordering. Best practices are suggested, like limiting the magnitude of `mut` and `vol` effects and specifying effect checks for operators and control structures. The goal is to improve C's safety, readability, and composability, especially for metaprogramming and resource management.

(www.open-std.org)

Development type system

Tux Racer in Your Browser: A Classic Returns

2025-06-20

Tux Racer in Your Browser: A Classic Returns

TuxRacer.js is an open-source browser-based port/rewrite of the classic penguin-racing game, Tux Racer, and its successor, Extreme Tux Racer. Playable on desktop and mobile browsers, players control Tux using keyboard/mouse (desktop) or touch input (mobile), navigating varied terrains and environments. Multiple courses and environments are selectable, with URL parameters allowing customization. While in early development, the game is already enjoyable.

(github.com)

Game Browser Game

Xiaomi Tightens Global Bootloader Unlock Policy: One Device Per Year

2025-01-02

Xiaomi Tightens Global Bootloader Unlock Policy: One Device Per Year

Xiaomi has recently changed its global bootloader unlock policy, limiting users to unlocking only one device per year, down from the previous three. This move has sparked outrage among developers and power users. The new policy may stem from security concerns, abuse prevention, and a push for improved software stability. However, it will significantly impact custom ROM development, device customization, and user experience. Many users are voicing their intention to switch brands.

(xiaomitime.com)

Tech Xiaomi Bootloader Unlock Policy Change

Baba Yaga: A Minimalist Functional Programming Language

2025-08-30

Baba Yaga: A Minimalist Functional Programming Language

Driven by an aesthetic pursuit of programming languages, the author developed Baba Yaga, a functional programming language. Core features include minimalist syntax, immutability, and a functional-first approach, with pattern matching for control flow. It blends familiar functional programming concepts for ease of use, includes built-in utilities, and offers JavaScript interoperability, aiming for use in games, sketches, and live coding.

(eli.li)

Development

Tesla's Reign in China: Power, Lawsuits, and Silence

2025-02-12

Tesla's Reign in China: Power, Lawsuits, and Silence

Tesla's success in the Chinese market is inextricably linked to its aggressive suppression of critics. This article exposes numerous instances where Tesla sued car owners and media outlets in China, almost always winning. It details how Tesla's connections with high-ranking Chinese officials secured preferential treatment and policies. The case of Zhang Yazhou, a car owner sued and defeated for publicly questioning Tesla's brake system, highlights concerns about Tesla using legal means to silence critics and harm consumer rights. This underscores Tesla's unique business model in China and the intertwined relationship between power and capital in influencing business operations and public opinion.

(apnews.com)

Tech Legal Battles

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