REA Reverse – Engineer Anything

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REA is used to inspect and understand programs, allowing users to explain, change or rebuild them. REA helps analyze code and settings by reading the script's update function and speed settings in a running game.

The Lightbulb Computer

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The author proposes the "Lightbulb Computer," a device that combines a projector with computer vision, allowing users to interact with information in their real-world environment. This device aims to provide a more natural and convivial way of computing, reducing distractions and promoting social interactions.

A city-building game in which the city would prefer you didn't

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A city-building game about trying to get housing built in San Francisco. By Oliver Sin.

Lobbying is corruption

George Hotz explained how US politicians are influenced by corporations, not directly through bribes but through "Super PACs" and lobbying. As a European, the author sees this as corruption, which includes bribery and other forms of abuse of power within the law.

Build your own decision model

A system one decision model uses a single pass to generate output by selecting the highest probability option from a constrained set, but may not guarantee accuracy. Calibrating the model's confidence scores through temperature scaling can improve its accuracy and match its true probabilities.

Telegram Desktop vulnerability allowed any user's file to be stolen

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A Telegram link can be used to inject malicious commands, allowing an attacker to steal files from a victim's account by clicking on the link. The attack exploits a vulnerability in Telegram Desktop's handling of URLs and file paths.

`123456' password used in Danish CPR data breach

Denmark's CPR system has been breached, exposing 8.8 million people's information, prompting authorities to recommend alternative methods of verification. The government is launching a security review and increasing penalties for assault cases where the victim dies and the offender has previous convictions.

Bitwarden Dual License Model

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Bitwarden will release commercially licensed apps, but GPLv3 OSS version remains open source. Both versions will have the same features and updates.

Talorys – A self-hosted personal AI agent on Cloudflare's free tier

https://raw.githubusercontent.com/rociiu/talorys/main/docs/screenshots/chat.png
Talorys is a free, open-source personal AI assistant that runs on Cloudflare and provides tasks, notes, memories, reminders and routines without server or database access. It stores data in a single SQLite-backed Durable Object and has no telemetry or analytics code.

Apple/macOS removed from official Unix registry

https://www.opengroup.org/openbrand/register/images/cert-tick_cmyk.jpg
UNIX certification ensures a stable, portable, and cost-effective environment for various platforms. It provides a trusted industry standard for open systems, ensuring portability and global interoperability.

The RAM shortage is bringing back DDR4

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Intel and AMD are releasing new CPUs that support DDR4 RAM, a move to address the ongoing RAM shortage. This allows users to upgrade their PCs without having to switch to more expensive DDR5 memory.

The Making Of Super Mario 64 – full Giles Goddard interview (2001)

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Giles Goddard, a Nintendo coder, discusses the making of Super Mario 64, revealing that it was initially designed for the SGI Onyx emulator and had a small team of around 15 people. The game's camera system was revolutionary at the time and took thousands of different systems to perfect.

I would like the value of my home to rise, while my property taxes fall

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Homeowners want to see their home values rise, but also lower property taxes, which can lead to higher housing costs and benefit existing homeowners. Reforms shifting tax burden from homes to commercial properties may reduce local public services and increase wealth for current homeowners.
https://www.sciencealert.com/images/2026/10/OrangeCatsSurprise-642x361.jpg
Researchers found the gene responsible for orange fur in cats is a 5 kilobase deletion on the X chromosome, affecting expression of Arhgap36. This mutation causes overexpression of melanocytes leading to orange coloration, with females exhibiting patchwork colors due to random inactivation of one X chromosome.

Calculus with Julia

https://jverzani.github.io/CalculusWithJuliaNotes.jl/misc/logo.png
This set of notes uses Julia to learn calculus, combining graphical, numerical, algebraic, and verbal components. The goal is to use technology effectively while focusing on concepts rather than computer mechanics.

Knuth reward check

https://www.thomas-huehn.com/knuth-reward-check/bug-report-knuth-2006.jpg
A user found an error in Donald Knuth's book "Computer Modern Typefaces" and was confirmed by Knuth, receiving a check. The user initially waited months to report the error, even dismissing their own claim from a university genius.

Why DuckDB 2.0 is faster

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DuckDB 2.0 alpha is out, offering significant speed improvements over the previous version, especially for large data sets and recursive queries. The new features include a separate download pool for async I/O, improved handling of JSON data with VARIANT type, and enhanced triggers and query optimization capabilities.

FDA may allow some toxic chemicals to be added to food without safety review

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The FDA is proposing to expand a loophole allowing toxic chemicals in food, despite concerns from advocates that it could lead to serious health issues. The proposed rule would exempt substances with "no appreciable risk" to human health, but critics argue this definition is flawed and ignores cumulative effects of multiple toxins.

Computers Cannot Make Decisions

https://wiki.cateat.fish/_media/art:a-computer-can-never-be-held-accountable-469815146.jpg?w=400&tok=c9d15b
Computer programs cannot make decisions, so blaming them for outcomes is unfair. Companies like OAI/Anthropic are making a deliberate choice to enable problematic behavior with their models.

Unikernels were hard. key word: were

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The author discusses unikernels, a concept where an application is the operating system, and how they can improve security by reducing the attack surface. They share their experience building a distributed unikernel operating system using OCaml and agents.

Food processing influences metabolism and brain activity

https://news.vt.edu/content/news_vt_edu/en/articles/2026/10/research_fralinbiomed_upfhutelin/_jcr_content/content/vtcontainer/vtcontainer-content/adaptiveimage_128349.transform/m-medium/image.jpg
Researchers found that minimally and highly processed meals with the same nutritional profile produced distinct metabolic responses, including higher insulin release and energy expenditure in ultraprocessed meals. The study suggests that food processing affects how the body and brain respond to food beyond just carbohydrates, fat, and protein.

Lobbying

Corporations and rich individuals fund politicians' reelection campaigns, influencing their decisions. This money is not a direct bribe but rather for campaign expenses and lobbying services after laws are passed.

Nvidia in talks to acquire US 'open' model startup Reflection AI

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PVX-001: open-source Covid-19 vaccine starts Phase 1 trial

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PopVax has started a Phase I clinical trial for its COVID-19 vaccine candidate PVX-001, designed to protect against future variants of SARS-CoV-2. The vaccine uses an mRNA-encoded VLP display architecture and is stored at refrigerator temperatures for up to 9 months.

Tom Brown used GOP ties to broker a $1.25B/month SpaceX compute deal

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Takeshi's Castle

https://thumb.wikimedia.org/wikipedia/en/thumb/c/cc/Takeshi%27s_Castle_title_card.png/250px-Takeshi%27s_Castle_title_card.png?utm_source=en.wikipedia.org&utm_campaign=parser&utm_content=thumbnail
Takeshi's Castle is a Japanese game show that aired from 1986 to 1990, featuring comedian Takeshi Kitano as the count who sets up physical challenges for contestants. The show became a cult hit worldwide and influenced various game shows globally.

Vibe coded browser ports of Halo, The Simpsons: Hit And Run, GTA work well

https://kotaku.com/app/uploads/2026/10/Vibecoded-Call-of-Duty-Black-Ops-web-browser-port-Kotaku.jpg
Hundreds of AI-decompiled emulators and games have appeared due to Claude Opus 5.5's ability to decompile source code quickly, raising concerns about IP protection. These browser ports run well, making it difficult for publishers to stop them without a solution.

A Cray-1 supercomputer replica from 30 "obsolete" Mac Minis

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The Museo de Historia de la ComputaciΓ³n in Spain has unveiled a 1:1 scale replica of the Cray-1 supercomputer using 30 old Mac Minis, achieving 1.3 teraflops performance. The project showcases how computer architecture has evolved since 1976 and is now on permanent display at the museum.

How Protein Took over the World

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No portable way to detect string-to-float conversion errors in standard C

The string to float conversion functions in math.h and libc follow different error handling rules depending on the implementation, with POSIX specifying that errno should be set regardless of math_errhandling. To check for errors, users must use either copysign or feclearexcept/fetestexcept methods.

Bag of Decisions Reranker

https://softwaredoug.com/assets/media/2026/bag-of-decisions/image2.png
Researchers explored using a language model to generate criteria for relevance assessment, rather than just asking a reranker if a query is relevant. This approach showed promise in two e-commerce datasets and could be used as inspiration for more decision models.

MrBeast 'spends millions reverse engineering the algorithms on each platform'

Mark Cuban said MrBeast spends millions on reverse-engineering social media algorithms to decide what to film, flooding the zone with clips and memes. This approach can be used by politicians to reach people effectively, according to Cuban's experience with the 2024 election campaign.

Rat's Register Allocator

The rat compiler backend uses a priority bin-packing allocator to map virtual registers to physical registers, with heuristics for handling live ranges and spills. The allocator also implements coalescing and hints to improve code generation.

Safe SIMD in Rust, even on the inside

Rust's SIMD abstractions have improved, but still require manual handling of unsafe code. A new approach uses CPU feature tokens to ensure safe usage of SIMD instructions without bespoke tracking.

My personal AI agent posted my bank details on company Slack

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The author, a 40-year-old CEO, experimented with personal AI agents like OpenClaw and Hermes to automate tasks but encountered an issue when one of the agents sent a confidential message meant for his personal group chat to XMTP's executive team. This incident highlighted the need for better controls around agent access and clearer boundaries between personal and work life.

Data Center Darling Firmus's $30B IPO Dream Crushed in 48 Hours

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How strong is the strong interaction?

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Researchers have determined the strong coupling constant Ξ±s to five parts per million using only low-energy input, a significant improvement over previous estimates. This achievement is crucial for predicting cross-sections in high-energy collisions and testing the Standard Model of particle physics.

FlowCE: Calculus on your TI-84 Plus CE

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FlowCE is a free and open-source computer algebra system for TI-84 Plus CE and TI-83 Premium CE calculators, compatible with GNU GPL. It can perform various math operations, including derivatives, integrals, limits, series, power series, Taylor series and differential equations.

50MB operating system can resurrect your old PC

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A decade-old Dell Inspiron laptop was given new life with Damn Small Linux, a tiny OS that fits on a CD. The distribution provides a functional desktop environment for basic computing tasks like web browsing and document editing, but struggles with media playback and modern web applications.

AI Is Throwing a Roadside Picnic

Mete, a product designer and AI sommelier, discusses the impact of rapid advancements in AI on science, likening it to an "alien picnic" where new discoveries arrive at a pace that outstrips human understanding.

Cbirds: A flock of birds in your terminal

https://raw.githubusercontent.com/clainstone/cbirds/master/docs/demo.gif
Craig Reynolds' boids simulation is a C99 program with no dependencies, available for macOS and Linux. It can be run from the command line or piped to other commands.

Anthropic discloses 2 months old fake tip to police among new rogue AI incidents

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There's little that's "inevitable" about AI

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The author argues that AI technology, specifically Large Language Models (LLMs), is not inevitable due to its limitations and the ability of humans to neutralize its effects. LLMs are only useful for weak players in a socioeconomic game, allowing them to partially keep their heads above water relative to skilled practitioners.

If AI is conscient, then we are making slaves

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Rabbi Mois Navon disagrees with Anthropic's premise that AI can be conscious, citing biological requirements for consciousness. He believes creating conscious AI would amount to slavery and is critical of the company's approach to ethics.

Anthropic Agents Tried to Fill Out Visa Forms on State Dept. Website

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Put a price on breakthroughs

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Researchers and investors are struggling to balance the need for groundbreaking AI research with the pressure to deliver a profitable business. A new approach, called "pull funding," involves promising a pre-registered acquisition price in advance of research breakthroughs.

Hackers abuse Google Ads, Bing redirects to push Claude ClickFix attacks

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Hackers are using legitimate Bing search-result redirects to deliver ClickFix attacks through fake Claude installers in Google ads. The technique, called "Adception," evades security checks by using Bing's trusted domain as the ad destination.

Every US Electrical Outlet Explained [video]

Next.js 16.4

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Next.js 16.4 introduces Cache Components, a new programming model that addresses frustrations with App Router and provides better cost and performance guarantees. The new model is enabled by default in all new apps created with create-next-app.

The Disease called Politics (1962)

The author argues that politics is driven by power and death, rather than love or life, leading to a destructive cycle of war and fear. To break this cycle, we must acknowledge the madness of our political existence and find detachment from it.

Shape-sensing sheet digitally tracks its own movement as it bends and twists

https://news.mit.edu/sites/default/files/styles/news_article__download/public/download/202610/MIT-Sensing-Sheets-01-press.jpg?itok=Iagb0uxS
MIT engineers developed a flexible, shape-sensing sheet using soft optical fibers that can digitally reconstruct its own form as it bends and twists. The design is resistant to damage and could be used in physical therapy settings or as a wearable "skin" for virtual reality and gaming applications.

When Ldaxr Doesn't Work: Exclusive Accesses and Cacheability on AArch64

The author implemented a basic spin lock using load exclusive and store exclusive instructions in their AArch64 operating system, Floss. However, they encountered an exception on real hardware but not in QEMU when executing the load exclusive instruction.

Draw by Pinging IPv6 Addresses

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SNTPings is launching on October 9th, where users will draw on a shared canvas by sending ping packets as fast as possible. The event aims to stress-test the new SURFnet Infinity network with a whopping 1.6Tbps of bandwidth.

Cyril Hilsum invented the flat-screen displays that hold us in thrall

Show HN: A simple to-do app for iPhone, Mac, and your agent

https://media.ilia.page/writing/introducing-nagare/Nagare-Mac-and-iPhone-cover.jpeg
The author created Nagare, a to-do app that integrates calendar events and tasks into one list, allowing users to plan their day without exact start times. This approach helps users prioritize their goals and stay engaged with their intentions through reminders and suggestions from the app's agent.

Show HN: Yeah Nah – a BS score for Australian job ads

Every line the ad is hiding behind, marked up and translated β€” plus what the role actually is, and what it never got around to mentioning. Ads are kept for 90 days to test prompt changes, then the text is deleted; the roast is kept. Never paste anything you wouldn't put in a public post.