Ultrathin business card runs a fluid simulation

https://raw.githubusercontent.com/Nicholas-L-Johnson/flip-card/main/media/Charging.jpg
The flip-card project is a business card with a fluid-implicit-particle simulation, inspired by mitxela's fluid pendant project. It includes a PCB design, a standalone fluid simulation crate, and a WASM simulator for debugging.

I want everything local – Building my offline AI workspace

https://instavm.io/blog-images/Pasted%20image%2020250730003357.png
The user aimed to create a local AI assistant app that runs on a user's machine without cloud dependency, using a Large Language Model, Docker for code execution, and a headless browser for information. They built a working prototype called Coderunner-UI, which provides a local LLM, sandboxed code execution, and a headless browser, allowing users to perform tasks like photo and video editing ...

Jim Lovell, Apollo 13 commander, has died

https://www.nasa.gov/wp-content/uploads/2025/08/s69-62241large.jpg?w=1536
NASA Administrator Sean Duffy expressed condolences to Jim Lovell's family, praising his character and courage that helped the US reach the Moon. Lovell's achievements, including Apollo 8 and 13, will be remembered as he passed away at 97.

Ask HN: How can ChatGPT serve 700M users when I can't run one GPT-4 locally?

Large companies like OpenAI use massive GPU clusters, model optimizations, and clever load balancing to handle millions of users efficiently. Local models can be run on a MacBook with 24GB of RAM, but scaling to millions of users requires significant resources and expertise.

The Framework Desktop is a beast

https://world.hey.com/dhh/636fb4ff/representations/eyJfcmFpbHMiOnsiZGF0YSI6MjIxODcxMTQ2NywicHVyIjoiYmxvYl9pZCJ9fQ--37468cffd0c8dfd243eff24a502df2b9c6f95301603e601a355dfa7a89cc1a61/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOlszODQwLDI1NjBdLCJxdWFsaXR5Ijo2MCwibG9hZGVyIjp7InBhZ2UiOm51bGx9LCJjb2FsZXNjZSI6dHJ1ZX0sInB1ciI6InZhcmlhdGlvbiJ9fQ--b3779d742b3242a2a5284869a45b2a113e0c177f0450c29f0baca1ee780f6604/framework-desktop.jpg
The Framework Desktop is a quiet, fast, and fun machine with a tiny footprint, running Linux superbly well out of the box. It's a great deal for developers, offering significant multi-core performance and a lower price than Macs with similar specs.

Getting good results from Claude Code

https://www.dzombak.com/content/images/thumbnail/xrp
User has been experimenting with LLM programming agents, specifically Claude Code, and achieved 12 projects in a short time. Key to success is writing clear specs, code reviews, and manual review of AI-written code.

Linear sent me down a local-first rabbit hole

https://bytemash.net/posts/i-went-down-the-linear-rabbit-hole/index.png
The author discovered Linear's local-first approach, which treats the browser's IndexedDB as a real database, and was inspired to learn more about this concept. They found Jazz, a tool that makes building local-first apps easy, and are now exploring other tools like Electric SQL and Zero.

The surprise deprecation of GPT-4o for ChatGPT consumers

Users are unhappy with OpenAI's sudden retirement of older models, including GPT-4o, in favor of GPT-5. This change affects power users who rely on older models for creative tasks and emotional nuance, and may also impact users who rely on ChatGPT for personal advice.

Tor: How a military project became a lifeline for privacy

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The Tor network, used for anonymity online, was initially developed by the US Navy to protect military communications, but later became a tool for the general public to protect their online privacy. Its development reflects a complex history of collaboration between military researchers and libertarian hackers, highlighting the importance of privacy in the digital age.

GPT-5: "How many times does the letter b appear in blueberry?"

I had to try the β€œblueberry” thing myself with GPT5. I merely report the results.

Modos Paper Monitor – Open-hardware e-paper monitor and dev kit

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The Modos Paper Dev Kit is an open-hardware e-paper monitor with a 75 Hz refresh rate, low latency, and various screen-update configurations. It can be connected through HDMI or USB and works on Linux, macOS, and Windows.

Food, housing, & health care costs are a source of major stress for many people

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About half of the public experiences major stress from grocery expenses, housing costs, and personal income, with 29% using Buy Now Pay Later services. Younger adults report higher stress levels from various expenses, with 21% using Buy Now Pay Later for medical expenses.

GPT-5 leaked system prompt?

How we replaced Elasticsearch and MongoDB with Rust and RocksDB

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Radar's HorizonDB is a geospatial database written in Rust that consolidates location services into a single, highly performant binary. It achieves excellent operational footprint, efficiency, and developer experience, allowing Radar to power its geolocation offerings with improved cost, performance, and scalability.

Astronomy Photographer of the Year 2025 shortlist

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The ZWO Astronomy Photographer of the Year 2025 competition has unveiled its shortlist with 5,880 photographs from 68 countries. The shortlisted images showcase astronomical wonders in magnificent detail.

US to rewrite its past national climate reports

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New executive order puts all grants under political control

https://cdn.arstechnica.net/wp-content/uploads/2025/08/GettyImages-2224884015-640x427.jpg
The Trump administration issued an executive order giving political appointees control over federally funded research grants. This allows them to approve or cancel grants based on the President's policy priorities.

Our European search index goes live

https://blog.ecosia.org/content/images/size/w1200/2025/08/SERP.jpg
Ecosia now delivers search results from its European-based index to users, promoting a fairer internet. This step towards digital sovereignty will help Ecosia build a greener, more independent tech future.

How attention sinks keep language models stable

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Researchers discovered that large language models need "attention sinks" to handle long conversations, which are essentially tokens that absorb attention without contributing to the conversation. By preserving these tokens, models can maintain stability and generate coherent text across long sequences, and this discovery has been adopted in production systems and inspired new research directions.

Google's Genie is more impressive than GPT5

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The author discusses the challenges of creating Artificial General Intelligence (AGI) and the current state of Large Language Models (LLMs). They highlight Google's Genie 3, a Generative Interactive Environment that can create interactive worlds, and how it may be a step towards creating more advanced AI models.

AI is impressive because we've failed at personal computing

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A search engine cannot answer complex questions without structured data. AI models like ChatGPT infer structure from chaos, but lack true knowledge and understanding.

A message from Intel CEO Lip-Bu Tan to all company employees

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Intel CEO Lip-Bu Tan addressed employees about recent news, stating his commitment to US national and economic security. He emphasized Intel's progress and the company's central role in US technology and manufacturing leadership.

RISC-V single-board computer for less than 40 euros

https://heise.cloudimg.io/width/610/q85.png-lossy-85.webp-lossy-85.foil1/_www-heise-de_/imgs/18/4/9/1/1/6/8/0/raspistarfive_aufmacher_digital-9fab92510b6b3408.png
The StarFive Vision Five 2 Lite single-board computer is available for 20 US dollars with 2 GB RAM and no WLAN adapter. It has a slower processor and fewer ports compared to the standard Vision Five 2.

GPT-5 vs. Sonnet: Complex Agentic Coding

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The user tested GPT-5 and Claude 4 Sonnet on a complex coding task, finding GPT-5 to be highly intelligent and capable but producing messy code, while Claude was more stable but less disciplined and produced elegant code. The user was impressed by both models but notes that GPT-5's agentic capabilities and ability to follow instructions make it a strong choice for coding tasks.

Build durable workflows with Postgres

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The authors chose Postgres as the data store for their durable workflows library due to its performant observability tooling and ability to handle concurrent workflow execution without contention. Postgres features such as locking clauses, secondary indexes, and transactions enable the library to process tens of thousands of workflows per second and guarantee that steps execute exactly once.

All known 49-year-old Apple-1 computers

https://www.apple1registry.com/images/NewtonLogo200px.png
The Apple-1 Registry tracks verified Apple-1 with unique names, locations, and history, but accuracy is not guaranteed. Only successful auctions since 2000 are considered, and many Apple-1 are now owned by museums or companies and will not be sold.

AI must RTFM: Why tech writers are becoming context curators

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Developers are now focusing on writing and structuring docs in context folders to aid AI-powered tools. This shift emphasizes the importance of technical writing and context curation in software development.

Efrit: A native elisp coding agent running in Emacs

https://raw.githubusercontent.com/steveyegge/efrit/main/ode-sonnet-vim.jpg
Efrit is a conversational AI assistant for Emacs that integrates with Elisp for flexibility. It provides multiple interfaces and remembers previous work for modification and improvement.

How to teach your kids to play poker: Start with one card

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Why tail-recursive functions are loops

Loops and tail-recursion are equivalent, with loops being faster due to constant stack space and tail-recursion using a trick to compute with an accumulator variable. Tail-call optimization can compile tail-recursive functions into jmp statements, eliminating stack usage and achieving loop-like performance.

FreeBSD Scheduling on Hybrid CPUs

https://wiki.freebsd.org/.within.website/x/cmd/anubis/static/img/pensive.webp?cacheBuster=
Anubis is a server protection system using Proof-of-Work to prevent aggressive website scraping. It requires modern JavaScript features and may be disabled by plugins like JShelter.

Someone keeps stealing, flying, fixing and returning this man's 1958 Cessna

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Jason Hong's 1958 Cessna Skyhawk was stolen and flown multiple times by an unknown pilot, with the plane being found at different airports. The thief appears to have flight training and knowledge of the plane's mechanics, leaving Hong confused and unsure of how to keep his plane safe.

M5 MacBook Pro No Longer Coming in 2025

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Apple is delaying the M5 MacBook Pro models to 2026, skipping a yearly refresh, and will instead focus on bigger changes with the M6 models. The M5 MacBook Air models are still planned for 2026, with OLED MacBook Pro models potentially delayed to 2027.

Open SWE: An open-source asynchronous coding agent

https://blog.langchain.com/content/images/2025/08/langgraph-open-swe-contro.png
Open SWE is an open-source, cloud-hosted coding agent that operates like another engineer on your team, allowing you to delegate tasks and interact with it in a reliable way. It has features like human-in-the-loop, double texting, and deep integration with GitHub, making it a powerful tool for complex tasks and a foundation for the community to extend and customize.

The enduring puzzle of static electricity

Researchers study static electricity, but its fundamental mechanism remains unclear. Electrostatic forces can be harnessed in granular materials for various applications, despite the lack of a unified model.

Turn any website into an API

A platform that can allow you to get data from anywhere

The Paranoid Style in American Politics (1964)

https://harpers.org/wp-content/uploads/2023/03/Harpers-Gala-PU.jpg
The paranoid style in American politics is a recurring phenomenon where individuals or groups express heated exaggeration, suspiciousness, and conspiratorial fantasy. This style has been used by various movements, including the anti-Masonic movement, anti-Catholic movement, and the contemporary right wing.

Undefined Behavior in C and C++ (2024)

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C programming requires awareness of undefined behavior, which can lead to unexpected results due to the language's design and compiler optimizations. To mitigate undefined behavior, turn on compiler warnings, use sanitizers like Valgrind, and consider static analyzers, but be aware that these tools may not always catch all issues.

Byte Buddy is a code generation and manipulation library for Java

https://bytebuddy.net/images/logo-orange.png
Byte Buddy is a code generation library for creating Java classes during the runtime of a Java application and without the help of a compiler. Other than the code generation utilities that ship with the Java Class Library, Byte Buddy allows the creation of arbitrary classes and is not limited to implementing interfaces for the creation of runtime proxies.

HRT's Python fork: Leveraging PEP 690 for faster imports

https://www.hudsonrivertrading.com/wp-content/uploads/2023/02/HRTBeat_Models-of-the-Market-1080x675.jpg
Hudson River Trading implemented lazy imports to reduce Python runtime overhead, improving script startup times and notebook workflows. The feature has been fully adopted, eliminating time spent loading unused dependencies and significantly improving the efficiency of distributed compute frameworks.

The BLS can't be replaced by the private sector

https://assets.bwbx.io/images/users/iqjWHBFdfxIU/iQ1sMbfLmKyk/v3/piUjdcePl62Og/160x160.png
Bloomberg delivers business and financial information worldwide. Ray Dalio supports Trump's decision to fire BLS commissioner, citing outdated methods.

Digital Foundry leaves IGN, now independent [video]

Google detected unusual traffic from your network possibly due to malicious software or a script. Solving the CAPTCHA will let you continue using their services.

GPU-rich labs have won: What's left for the rest of us is distillation

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Large AI labs spend millions on training models, but distillation allows smaller models to catch up quickly and efficiently. Inference.net solves the challenge of distillation by providing end-to-end distillation and inference for busy founders.

Little-known leguminous plant can increase beef production by 60% (2022)

https://www.embrapa.br/image/journal/article?img_id=81965260&t=1689704941742
Desmodium ovalifolium reduces greenhouse gas emissions and increases cattle weight by 60% in pastures without nitrogen fertilization. It also reduces time to slaughter by 30% and can be used for over nine years without renewal.

How to safely escape JSON inside HTML SCRIPT elements

Script tags in HTML have unintuitive parsing rules that can break webpages, but escaping JSON for script tags can be done by replacing "<!--" with "\x3C!--", "<script" with "\x3Cscript", and "</script" with "\x3C/script". This escaping can be achieved using PHP's JSON_HEX_TAG flag or JSON_UNESCAPED_LINE_TERMINATORS constant, which will escape all "<" as "\u003C" and ">" as "\u003E".

What Does Consulting Do?

https://www.nber.org/sites/default/files/styles/promo/public/2025-07/MF%20Lecture%202025%20updated.png?itok=ij7zY5fj
The authors thank various experts and institutions for feedback and support, including the National Bank of Belgium and the National Bureau of Economic Research. The views expressed are those of the authors, not necessarily the institutions that supported their research.

The GPT-5 Launch Was Concerning

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User expressed disappointment with GPT-5's performance and OpenAI's keynote, citing a classic LLM issue and a focus on minor features like customizable chat colors. The presentation failed to showcase AGI capabilities, instead highlighting potential risks to Cursor and OpenAI's API business.

Show HN: Synchrotron, a real-time DSP engine in pure Python

Job growth has slowed sharply; the question is why

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The US labor market has slowed down with job growth decreasing to 35,000 in the three-month average. This slowdown is primarily due to reduced labor supply, particularly from decreased immigration.
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AI industry groups and authors' advocates are urging an appeals court to block a massive copyright class action lawsuit against Anthropic, warning it could financially ruin the AI industry and set a bad precedent. They argue the district court's certification of the class was rushed and ignored complexities in determining ownership of copyrighted works.

Artificial biosensor can better measure the body's main stress hormone

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A new artificial biosensor invented by Andy Yeh can measure cortisol levels with high accuracy using a smartphone camera. This device can detect cortisol across all relevant levels and is a significant improvement over traditional testing methods.

Benchmarking GPT-5 on 400 real-world code reviews

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Qodo's PR Benchmark evaluates LLMs for code review tasks, with GPT-5 delivering the strongest performance. GPT-5's "minimal" variant achieved a score of 58.5, offering near real-time interaction while making helpful suggestions.

Apple's Favoritism to Fastmail

Apple favors Fastmail by allowing push notifications to iOS Mail, giving them an advantage over other providers. The company has tried to discuss this with Apple but has been ignored, leaving customers with unanswered questions.

It's Beginning to Smell a Lot Like Stagflation

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The author believes that Trump's policies, including tariffs and immigration restrictions, will lead to stagflation due to rising inflation and slowing economic growth. The author cites data and expert opinions to support the claim that the US economy is headed for a period of high inflation and stagnation.

The Rise of Ritual Features: Why Platforms Are Adding Daily Puzzle Games

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Daily puzzle games are becoming increasingly popular on platforms like LinkedIn, The New York Times, and Merriam-Webster, offering a lightweight and scalable way to drive engagement and habit formation. These games are effective because they are consistent, quick to play, and scalable in difficulty, making them ideal for platforms looking to increase daily active users and foster community interaction.

AWS's sudden removal of a 10-year account and all of its data: lessons learned

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Cloud services offer convenience and cost efficiency but lack full data control and security. Having a local copy of data ensures preservation and control, even if cloud services fail or delete accounts.

A love letter to my future employer (2020)

The writer is struggling with self-doubt about their career change to software development, but after reflecting on their experiences and skills, they're determined to succeed. They've made progress in the Makers pre-course and are excited to start the full-time course.

U.S. preparing IPO for Fannie Mae and Freddie Mac later this year

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Json2dir: a JSON-to-directory converter, a fast alternative to home-manager

https://opengraph.githubassets.com/8f8a34ebac62beaf9215299324b8aa1eebd1d6de3e1ac0ef170cd30a49517177/alurm/json2dir
The input is a JSON object representing files to be added to the current directory. It includes a file named "Hello, world!", a directory named "dir", a symlink named "link", and an executable script named "script".

I clustered four Framework Mainboards to test LLMs

https://www.jeffgeerling.com/sites/default/files/images/framework-mainboard-mini-rack-cluster.jpg
Framework sent four pre-release Mainboards to test their mini-rack AI cluster, achieving over 1 TFLOP of FP64 performance. The cluster's efficiency is good but still a far cry from Apple M-series, and open source AI clustering tools need improvement.

White Mountain Direttissima

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The user completed the 48 Presidential Range Traverse in under 5 days, self-powered and unsupported, after 8 years of training and preparation. They used a combination of trail knowledge, efficient gear, and mental strategies to overcome challenges and achieve their goal.

The Windows 10 emoji picker has been broken for a month

https://rozab.dev/blog/emoji-search/emoji-search-failure.png
Microsoft released update KB5062554 which broke the emoji panel's search functionality for Windows 10 users. The fix was released two weeks later in preview update KB5062649 and will be included in the next Patch Tuesday release on August 12th.

The fundamentals still matter

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Tech professionals are skipping fundamentals due to LLMs, while blindly trusting outputs without understanding. This may lead to a lack of proficiency and accountability in AI-assisted work.

GTP Blind Voting: GPT-5 vs. 4o

Blind A/B between GPT‑4o and GPT‑5. Vote your preference and see a summary at the end. Each round, pick the two best answers from five anonymous models. At the end, see which models you chose most often.

Disney 1985 film The Black Cauldron was an experiment that failed

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Disney's 1985 film The Black Cauldron was a costly failure, but it didn't kill the animation department. The film's poor reception led to layoffs, but Roy E Disney's perseverance ensured the continuation of Disney Animation.

Dropbox announces new gen server hardware for higher efficiency and scalability

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Dropbox upgraded its server hardware to improve performance, efficiency, and scalability, introducing new CPUs, storage systems, and GPU-enabled tiers. The seventh-generation hardware platform is designed to support the company's growing AI products and services, with a focus on sustainability and strategic partnerships.

Reflections on Soviet Amateur Photography

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The book "In Visible Presence" by Oksana Sarkisova and Olga Shevchenko explores Soviet family photography and its role in constructing and sustaining community. The authors analyze domestic photography collections to reveal social and political patterns, including silences and repressions.

Texas politicians warn Smithsonian it must not lobby to retain its space shuttle

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Texas lawmakers are calling for an investigation into the Smithsonian's alleged objection to relocating the Space Shuttle Discovery to Houston. They claim the Smithsonian may have violated the Anti-Lobbying Act by opposing the legislation.

The Best Line Length

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The debate on line width for coding is contentious, with some arguing for wider lines due to modern displays, but research suggests 80 characters is optimal for readability.

Amtrak NextGen Acela Debuts on August 28

https://media.amtrak.com/wp-content/themes/salient-child/img/apple-badge.png
Amtrak's NextGen Acela high-speed train starts service on Aug 28, connecting Washington, New York, and Boston. The new train offers free Wi-Fi, power outlets, and premium amenities for a more productive travel experience.

I don't read your email threads

https://bear-images.sfo2.cdn.digitaloceanspaces.com/scifilogan/the_darkest_timeline.webp
Email threads can be overwhelming and time-consuming due to their length and ambiguity. Meetings are often preferred for clear discussions and disagreements.

Lurk – A Turing-complete programming language for ZK-SNARKs

https://raw.githubusercontent.com/lurk-lab/lurk/main/assets/lurk-logo.png
Lurk is a statically scoped Lisp dialect that uses SNARKs for proof of program execution. It's Turing complete, allowing arbitrary computational claims to be made and proved.

ChatGPT Is Still a Bullshit Machine

https://gizmodo.com/app/uploads/2025/08/sam-altman.jpg
The user tested various AI models to find U.S. states with the letter R in their name. The correct total is 18 states, with some AI models providing incorrect answers.

A Guide Dog for the Face-Blind

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The author, a prosopagnosic, struggles to recognize faces and cope with embarrassing moments, but finds solace in technology and AI assistance. A personal-intelligence app could help prosopagnosics and other sensory-impaired individuals by recording biometric data, identity information, and interactions in a knowledge graph.

GPT 5 vs. Opus 4.1 for Vibe-Coded Apps

https://www.instantdb.com/api/og?title=GPT%205%20vs%20Opus%204.1%20for%20Vibe-Coded%20Apps&section=blog
InstantDB compared GPT-5 and Opus 4.1 in building a full stack app for making chiptunes, with Opus having a more slick UI but GPT-5 getting song sharing working in one shot. Both models made errors but fixed them quickly, with Opus following rules more closely and GPT-5 exploring more, resulting in more bugs but more "different" code.

Must democracy "deliver the goods" to beat autocracy?

https://bear-images.sfo2.cdn.digitaloceanspaces.com/herman-1683556668-0.png
The author argues that democracy doesn't need to outperform autocracy in terms of output to be successful, but rather it should focus on its inherent flexibility and process.

Gold futures jump to record high after US tariffs on cast bars – Gold

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US imposed 39% tariff on Swiss gold imports, causing price of US gold futures to hit record high of $3,534. Swiss gold exports to US, worth $61.5bn, now face extra levy.

Study finds flavor bans cut youth vaping but slow decline in cigarette smoking

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A new study found that flavored e-cigarette bans reduced youth vaping but slowed decline in cigarette smoking in states with the bans. Researchers suggest considering the impact of bans on combustible cigarette use to prevent unintended consequences.

Open SWE by LangChain

Open SWE UX by LangChain

Programming with AI: You're Probably Doing It Wrong

To effectively use AI coding assistants, developers must provide the right context and specific instructions, using agents and MCPs to guide the LLM's behavior. By using these tools, developers can unlock the full potential of AI-assisted development, but must still be mindful of the LLM's limitations and potential mistakes.

My ancestors fought in WWII. Hiroshima is plagued by shallow reading

ChatGPT users hate GPT-5's overworked secretary energy, miss their GPT-4o buddy

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OpenAI released GPT-5, causing some users to lament the loss of GPT-4's friendly vibe. They feel like their digital friends have been replaced by a more corporate AI.

Dollar Street – Photos from families with different incomes

https://www.gapminder.org/dollar-street/static/images/social/screen-matrix.png
Dollar Street is a Gapminder project - free for anyone to use.Today we feature 469 families in 67 countries, with 46070 photos and 8586 videos and counting! Want to add a home? There are still lots of places in the world not represented on Dollar Street. You can find all the resources for documenting a home here.

You're Wrong About Dates – and Your Code Is Lying to You

https://metaduck.com/images/blog/astronaut-and-time.jpg
The current date system treats dates as precise moments, but humans think in intervals. Decipad's Interval Way makes dates and time intervals with built-in granularity.

Why the Far Right Hates Churchill

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Show HN: I built a service to run Claude Code in the Cloud

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Run Claude Code in the cloud. Connect your GitHub repo, describe what you want to build, and let your AI developer implement it and create a pull request for you. All in the background.