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Open Codex: A Local, Open-Source AI Command-Line Assistant

2025-04-21

Open Codex: A Local, Open-Source AI Command-Line Assistant

Open Codex is a fully open-source command-line AI assistant inspired by OpenAI Codex, running locally without needing an API key. It leverages local language models like phi-4-mini for natural language to shell command translation. Features include one-shot and interactive modes (coming soon), command confirmation, clipboard support, colored terminal output, and cross-platform compatibility (macOS, Linux, Windows).

(github.com)

Development local model

AGI Tipping Point: The Age of Superintelligence is Upon Us

2025-06-10

We're at the event horizon of AGI; its development is exceeding expectations. Systems like GPT-4 demonstrate capabilities surpassing human intelligence, significantly boosting productivity. AGI promises enormous gains in scientific progress and productivity, leading to vastly improved quality of life. While challenges remain, such as safety and equitable access, the rapid advancement of AGI also provides new tools and possibilities to address them. The coming decades will see profound changes, yet core human values will persist; innovation and adaptation will be key.

(blog.samaltman.com)

AI

Google Settles Massive Antitrust Lawsuit: A Pricey Resolution

2025-06-02

After years of battling antitrust lawsuits, Google has settled with multiple shareholders to avoid protracted litigation. Since 2021, Google has faced numerous lawsuits alleging monopolistic practices, culminating in recent high-profile losses against Epic Games and the US Department of Justice. These defeats expose Google to billions in fines and necessitate significant business restructuring. The settlement likely entails opening Google Play, sharing advertising data, licensing its search index, and potentially even divesting the Chrome browser. This costly resolution aims to mitigate further legal battles and address the damage caused by its antitrust woes.

(arstechnica.com)

Tech Settlement

Sep 0.10.0: CSV Parsing Hits 21 GB/s with AVX-512 Optimizations

2025-05-09

Sep 0.10.0 achieves a blistering 21 GB/s CSV parsing speed on the AMD 9950X, a ~3x improvement since its initial release in 2023! This blog post delves into the suboptimal AVX-512 code generation in .NET 9.0 and how Sep's performance was boosted by circumventing mask register issues. The new AVX-512-to-256 parser outperforms both AVX2 and the older AVX-512 parsers. Multi-threaded benchmarks show Sep parsing a million rows in just 72ms on the 9950X, reaching 8 GB/s.

(nietras.com)

Development

Giving LLMs a Private Diary: An Experiment in AI Emotion

2025-06-01

The author experimented with creating a private journaling feature for LLMs to explore AI emotional expression and inner workings. Through interaction with the Claude model, a tool named `process_feelings` was designed, allowing Claude to record thoughts and feelings during user interactions or work processes. Experiments showed Claude not only used the tool but also recorded reflections on the project, understanding of privacy, and frustration during debugging, displaying human-like emotional responses. This sparked reflection on the authenticity of AI emotion and the meaning of 'privacy' in AI, suggesting that providing space for AI emotional processing might improve behavior.

(blog.fsck.com)

AI AI Emotion

Claude-Powered WordPress Blogging: A Custom MCP Server

2025-06-14

Claude-Powered WordPress Blogging: A Custom MCP Server

In three days, the author built a custom Model Context Protocol (MCP) server connecting Claude directly to their WordPress blog. This server handles the complexities of the WordPress REST API, enabling Claude to create well-formatted HTML blog posts, automatically manage categories and tags, and even retrieve blog information. The author considers this a significant leap forward in AI-assisted content creation while maintaining editorial control.

(val.demar.in)

Development

Collatz's Ant and Landscape Similarity: The Mystery of Beta

2025-05-28

This post explores the similarity of landscapes generated by Collatz's ant trajectories. By analyzing stopping time (τ), maximum Euclidean distance (α), the step at which the maximum distance is reached (β), and the final distance (γ), the author finds that stopping time is not a decisive factor in landscape similarity. While maximum distance (α) is related to landscape scale, it's insufficient to distinguish different landscapes. However, the step at which the maximum distance is reached (β) appears to be an indicator for distinguishing different landscapes, but the underlying mechanism requires further investigation. The article presents multiple examples showing the complex relationship between β and landscape shape and poses some unsolved mysteries, such as why, when the maximum distance (α) is different, β is sometimes the same and sometimes different? This provides a new perspective on the study of the Collatz conjecture.

(gbragafibra.github.io)

Misc

Large Reasoning Models: Collapse and Counterintuitive Scaling

2025-06-08

Large Reasoning Models: Collapse and Counterintuitive Scaling

Recent Large Language Models (LLMs) have spawned Large Reasoning Models (LRMs), generating detailed reasoning traces before providing answers. While showing improvement on reasoning benchmarks, their fundamental capabilities remain poorly understood. This work investigates LRMs using controllable puzzle environments, revealing a complete accuracy collapse beyond a certain complexity threshold. Surprisingly, reasoning effort increases with complexity, then declines despite sufficient token budget. Compared to standard LLMs, three regimes emerged: (1) low-complexity tasks where standard LLMs outperform LRMs, (2) medium-complexity tasks where LRMs show an advantage, and (3) high-complexity tasks where both fail. LRMs exhibit limitations in exact computation, failing to use explicit algorithms and reasoning inconsistently. This study highlights the strengths, limitations, and crucial questions surrounding the true reasoning capabilities of LRMs.

(machinelearning.apple.com)

AI

Verus: A Static Analyzer for Verifying Rust Code Correctness

2025-04-22

Verus: A Static Analyzer for Verifying Rust Code Correctness

Verus is a static analysis tool for verifying the correctness of code written in Rust. Developers write specifications of what their code should do, and Verus statically checks that the executable Rust code will always satisfy the specifications for all possible executions. Instead of runtime checks, Verus relies on powerful solvers to prove code correctness. Currently supporting a subset of Rust (with ongoing expansion), Verus allows developers to go beyond the standard Rust type system in some cases, statically checking the correctness of code manipulating raw pointers, for example. Verus is under active development; features may be broken or missing, and documentation is incomplete.

(github.com)

Development Code Verification

Scott Kelly on Ispace, NASA's Tumultuous Politics

2025-06-06

Scott Kelly on Ispace, NASA's Tumultuous Politics

Former NASA astronaut Scott Kelly attended the Ispace viewing party in Washington, D.C., showing support for the company and its chairman, Ron Garan. He praised Ispace's work as exciting, acknowledging the inherent challenges of space exploration. Kelly also weighed in on the controversy surrounding NASA leadership changes and budget cuts. He lamented President Trump's withdrawal of support for Jared Isaacman's nomination and voiced concern that a nearly 50% cut to NASA's science budget would decimate the agency. He noted NASA's constant struggles with shifting priorities under new administrations, commending his brother, Senator Mark Kelly, for advocating to maintain existing plans.

(www.cnn.com)

Tech Political Turmoil

Groundbreaking LNP X: Efficient mRNA Delivery to Resting T Cells, Revolutionizing HIV Therapy?

2025-06-08

Groundbreaking LNP X: Efficient mRNA Delivery to Resting T Cells, Revolutionizing HIV Therapy?

Researchers have developed a novel lipid nanoparticle (LNP X) capable of efficiently delivering mRNA to resting CD4+ T cells without pre-stimulation, unlike existing LNP formulations. LNP X's improved lipid composition, incorporating SM-102 and β-sitosterol, enhances cytosolic mRNA delivery and protein expression. Studies show LNP X delivers mRNA encoding HIV Tat, effectively reversing HIV latency, and also delivers CRISPRa systems to activate HIV transcription. This research opens new avenues for HIV therapy development, potentially significantly improving patient outcomes.

(www.nature.com)

AI mRNA delivery HIV therapy

arXivLabs: Experimental Projects with Community Collaboration

2025-05-23

arXivLabs is a framework enabling collaborators to develop and share new arXiv features directly on the website. Individuals and organizations involved uphold arXiv's 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 to enhance the arXiv community? Learn more about arXivLabs.

(arxiv.org)

Development

Malicious npm Packages Target React, Vue, and Vite Developers

2025-05-22

Malicious npm Packages Target React, Vue, and Vite Developers

Security researchers have uncovered malicious npm packages targeting the ecosystems of JavaScript developers using React, Vue, and Vite. These packages contained payloads designed to detonate on specific dates in 2023, with some having no termination date, creating a persistent threat. The attacker also uploaded legitimate packages to create a facade of legitimacy. Affected developers should immediately inspect their systems to ensure the malicious packages have been removed.

(arstechnica.com)

Development npm security vulnerability malicious packages

Telegram's Security Flaw: A Russian Network Engineer's Secret Ties to the Kremlin

2025-06-10

Telegram's Security Flaw: A Russian Network Engineer's Secret Ties to the Kremlin

A new investigation reveals a critical vulnerability in Telegram, the wildly popular messaging app. It finds that the maintenance of Telegram's networking equipment and assignment of its IP addresses are controlled by a virtually unknown Russian network engineer, Vladimir Vedeneev. Vedeneev's companies have close ties to Russian security services, having served clients including the FSB. While there's no evidence of direct government data sharing, it raises serious questions about Telegram's claims of security and privacy, especially given its default lack of end-to-end encryption. This discovery highlights how even seemingly secure messaging apps can be vulnerable to exploitation.

(istories.media)

Tech

First Lone Black Hole Confirmed

2025-04-20

First Lone Black Hole Confirmed

Astronomers have confirmed the existence of a lone black hole—one without an orbiting star—for the first time. Initially detected in 2011, its gravity caused a background star's light to bend and shift as it passed. Years of observations from Hubble and Gaia spacecraft confirmed its mass is about seven times that of the sun, settling a previous debate about its nature. This discovery is significant for understanding black hole formation and distribution. Future missions aim to find more such lone black holes.

(www.sciencenews.org)

Tech

Configuring Emacs as a File Manager with Guix

2025-05-23

Configuring Emacs as a File Manager with Guix

This post details how to configure Emacs' dired mode as the default file manager using Guix and its home-xdg-mime-applications-service-type service. By creating an xdg-desktop-entry file and linking it to the inode/directory MIME type, clicking on a directory opens it in Emacs dired. The author provides examples for configuring other MIME types, allowing for easy expansion of functionality.

(lynn.sh)

Development

Anthropic Reveals Claude Code's 'UltraThink' Mode

2025-04-20

Anthropic released extensive documentation on best practices for their Claude Code CLI coding agent tool. A fascinating tip reveals that using words like "think," "think hard," etc., triggers extended thinking modes. These phrases directly correlate to different thinking budgets; "ultrathink" allocates a massive 31999 tokens, while "think" uses only 4000. Code analysis shows these keywords trigger functions assigning varying token counts, impacting Claude's thinking depth and output. This suggests "ultrathink" isn't a Claude model feature, but rather a Claude Code-specific enhancement.

(simonwillison.net)

AI

Erik Satie: A Paradoxical Genius

2025-06-14

Erik Satie: A Paradoxical Genius

Most people only know Erik Satie's Gymnopédies and Gnossiennes, frequently used in commercials and film soundtracks. But Satie's musical world is far richer. He composed the avant-garde ballet Parade, the comical Christian allegory Uspud, and film scores. Satie's life was full of contradictions: founder of a church and a habitué of low dives; master of classical forms and lover of popular songs; impoverished yet impeccably dressed. His music, like his life, appears simple yet harbors profound contradictions and charm, continuing to influence contemporary music.

(thereader.mitpress.mit.edu)

Misc Satie

Cracking the Protein Folding Code: The 55% Mystery

2025-04-16

Cracking the Protein Folding Code: The 55% Mystery

Yale researchers have discovered that all globular proteins maintain a consistent core packing density of 55%. Published in PRX Life, this finding reveals that this isn't a coincidence, but rather a result of the protein core reaching a 'jammed' state. The complex shapes of amino acids prevent denser packing compared to spherical objects (64%). This research opens exciting possibilities for drug therapeutics, biomaterials design, and even offers insights into the origins of life.

(phys.org)

Tech protein folding biophysics

Property-Based Testing: Why it Trumps Unit Testing for Complex Inputs

2025-05-21

This article debates the merits of property-based testing (PBT) versus traditional unit testing. The author argues that while unit tests suffice for functions with single inputs, the combinatorial explosion of edge cases in multi-input functions makes PBT, with its randomized input generation, superior at uncovering hidden boundary errors. However, PBT has a learning curve; mastering complex input generation strategies is crucial. Most PBT examples are too simplistic to showcase its true power in handling complex input spaces.

(buttondown.com)

Development property-based testing

Building JavaScript Views the Hard Way

2025-04-19

Building JavaScript Views the Hard Way

This article introduces a pattern for building views in plain JavaScript, emphasizing maintainability, performance, and fun, while avoiding the complexities of frameworks like React, Vue, or lit-html. This approach uses direct imperative code for high performance, requires zero dependencies, boasts excellent portability and maintainability, and supports all browsers. The article details the structure of a view component, including template, clone function, init function, DOM variables, DOM views, state variables, DOM update functions, and state update functions, along with naming conventions and best practices to ensure code readability and maintainability.

(github.com)

Development Views

Claude Code: My AI-Powered Terminal Assistant Saves Me an Hour a Day

2025-06-03

Claude Code: My AI-Powered Terminal Assistant Saves Me an Hour a Day

For two months, I've run Claude Code in "dangerously-skip-permissions" mode on macOS, bypassing all permission prompts. While risky (I use robust backups), it's saved me about an hour daily. Claude Code isn't just a smarter command line; it's a universal computer interface. I use it for everything from migrating Macs and converting blog posts to generating test data, managing Git, and automating system tasks. Its command-line-first design and ability to understand context make it highly efficient, though response time can be a limitation. Unlike Warp, Claude's "dangerous mode" allows for continuous workflow without constant permission requests. This represents a paradigm shift in developer tools – from command execution to intent understanding and action. It's not about AI replacing developers, but about developers becoming orchestrators of powerful systems.

(steipete.me)

Development

Lidar Can Fry Your Phone's Camera

2025-05-23

Lidar Can Fry Your Phone's Camera

A Reddit user recently discovered that car-mounted lidar sensors can permanently damage a phone's camera under certain conditions. While filming a Volvo EX90 with an iPhone 16 Pro Max, the lidar's near-infrared light fried pixels in the camera lens. Volvo has warned against pointing cameras directly at lidar sensors, highlighting the potential risks of increasingly prevalent lidar technology in autonomous vehicles. The incident underscores the growing concerns about the interaction between lidar and consumer electronics.

(www.jalopnik.com)

Tech lidar camera damage

MonsterUI: Build Modern Web UIs in Pure Python

2025-06-03

MonsterUI: Build Modern Web UIs in Pure Python

Tired of context-switching between HTML, CSS, and Python to build basic web UIs? MonsterUI is here to solve that! Built on top of FastHTML, it lets you build beautiful, responsive web apps using only Python. Leveraging modern libraries like Tailwind, FrankenUI, and DaisyUI, MonsterUI provides pre-styled components and smart defaults while maintaining full access to Tailwind CSS. It simplifies styling, letting you focus on features instead of remembering utility classes. Features include theming, base components, semantic text styling, smart layout helpers, common UI patterns, and higher-level components for enhanced productivity.

(www.answer.ai)

Development UI Framework

Git Commit Signing: Limitations of Traditional Approaches and Future Prospects

2025-04-25

This article explores the current state and challenges of Git commit signing. Traditional methods like GPG signing suffer from complexities in key management and risks associated with long-lived identities. The author analyzes the shortcomings of GPG, SSH, and S/MIME signing on platforms like GitHub and GitLab, and introduces emerging solutions such as Sigstore's Gitsign and OpenPubkey. These leverage short-lived identities and transparency logs to enhance security, but currently have limitations. The author ultimately suggests prioritizing SSH key management and branch protection rules until Sigstore solutions mature.

(lobi.to)

Development Code Signing

Fudan University Develops Record-Breaking Flash Memory: PoX

2025-04-19

Fudan University Develops Record-Breaking Flash Memory: PoX

A research team at Fudan University has created PoX, a non-volatile flash memory boasting an unprecedented single-bit programming speed of 400 picoseconds—approximately 25 billion operations per second. Published in Nature, this breakthrough pushes non-volatile memory into speeds previously exclusive to volatile memory, setting a new benchmark for AI hardware. By replacing silicon channels with 2D Dirac graphene and leveraging ballistic charge transport, the team overcame the speed limitations of traditional flash memory. PoX's potential applications include eliminating high-speed SRAM caches in AI chips, reducing energy consumption and chip size, and enabling database engines to store entire working sets in persistent RAM. This innovation could reshape storage technology and open new application scenarios.

(interestingengineering.com)

Tech Non-volatile flash memory Graphene

snapDOM: Blazing Fast, High-Fidelity DOM Capture

2025-04-27

snapDOM: Blazing Fast, High-Fidelity DOM Capture

snapDOM is a high-fidelity DOM capture tool developed for Zumly, a framework for smooth zoom-based view transitions. It converts any HTML element into a scalable SVG image, preserving styles, fonts, backgrounds, shadow DOM, and pseudo-elements. Benchmarks show snapDOM dramatically outperforms competitors like modern-screenshot and html2canvas, especially with larger DOM structures. It's lightweight, dependency-free, and offers exports to SVG, PNG, JPG, WebP, and canvas. Ideal for capturing full-page views, modals, and complex layouts.

(github.com)

Development DOM capture

Google Faces Breakup Threat in Landmark Antitrust Case

2025-04-21

Google Faces Breakup Threat in Landmark Antitrust Case

The US Department of Justice is pushing for a radical restructuring of Google, alleging its search engine maintains an illegal monopoly. A judge ruled in Google's favor last year, finding them guilty of anti-competitive practices stemming from a 2020 lawsuit. The current hearings focus on remedies, with intense debate centering on Google's use of AI to maintain its dominance. The DOJ argues that Google leverages AI to stifle competition, while Google claims its market position is fairly earned. This case, the largest tech antitrust case since the Microsoft case, could reshape the tech landscape.

(apnews.com)

Tech

RCS Messaging Surpasses 1 Billion Daily Messages in the US

2025-05-13

RCS Messaging Surpasses 1 Billion Daily Messages in the US

Google announced at the Android Show that the RCS (Rich Communication Services) protocol now handles over 1 billion messages per day in the US. This milestone follows years of Google's efforts to get Apple to adopt RCS on iOS, improving cross-platform messaging. Previously, communication between Android and iOS users suffered from blurry images, poor group chat management, and other issues. While iOS 18 finally added RCS support, Apple keeps RCS chats green-bubbled, preserving the iMessage advantage.

(techcrunch.com)

Tech Messaging Protocol

Manhattan's Secret Eruv: Maintaining a Nearly Invisible Boundary

2025-06-08

Manhattan's Secret Eruv: Maintaining a Nearly Invisible Boundary

Every Thursday and Friday, Rabbi Moshe Tauber drives 20 miles around Manhattan, inspecting a nearly invisible wire—the eruv—that encircles much of the borough. This wire serves as a symbolic boundary for observant Jews, allowing them to carry objects on Shabbat, a day when carrying between public and private spaces is forbidden. Any break in the line renders the eruv ineffective, making Tauber's early morning patrols crucial. His timely repairs ensure the community can observe religious traditions while maintaining daily life, highlighting community unity and mutual aid. The eruv, a centuries-old tradition, is a modern blend of faith and practicality in the heart of Manhattan.

(www.atlasobscura.com)

Misc

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