Claude: System Prompts

https://platform.claude.com/docs/og?locale=en&path=release-notes/system-prompts&design-rev=1
Claude's web interface and mobile apps use a system prompt to provide information, including the current date, at the start of conversations. The prompt is updated periodically to improve Claude's responses, but not for the Claude API.

The AI Credit Resale Economy

https://cdn.ploy.ai/2eb2235a-6b78-4d32-9713-f051311d8809/user/0a6c2555-convo-with-broker.webp
Token brokers buy unused credits from startups and resell them, offering discounts to attract buyers. This market is growing rapidly, with tens of millions of credits being offered across various sites and forums.

St Lucie Nuclear Reactor Unit 1 manually shutdown, 3 control rods drop into core

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The Saint Lucie Nuclear Power Plant Unit 1 was manually shut down after 3 control rods dropped into the reactor core. The event, classified as a non-emergency by the NRC, had all systems responding normally post-trip.

Anton Chekhov played at love most of his life

https://commonreader.wustl.edu/app/uploads/2026/07/AntonOlgaFormatted.jpg
A favorite professor taught Anton Chekhov's short stories as models of writerly virtues, emphasizing his life and work. Chekhov's personal life was marked by a mix of romantic relationships, including with actress Olga Knipper, whom he married at 41 and died from tuberculosis at 44.

NIH is ending a key grant for budding clinical researchers

Archie G. Norcross' Maine Forest Fire Maps (1918–22)

https://pdr-assets.b-cdn.net/collections/maine-forest-fire-maps/BRM3549-Norcross-View-from-Double-Top-1919_lowres-3000x2990-edit.jpg?width=1200&height=765
Jack Kerouac worked as a fire lookout in the North Cascade Mountains from 1956 to 1957, seeking an ascetic experience. He kept panoramic maps of his surroundings, which were drawn by civil engineer Archie G. Norcross for the Maine Fire District between 1918 and 1923.

GPS and the Lost Art of Getting Lost

https://media.newyorker.com/photos/6a738d140ec867995d3634da/master/w_2560%2Cc_limit/gps-final-new-new2.jpg
A neuroscientist studied how people navigate without GPS, finding that relying on technology can lead to a loss of spatial awareness and cognitive mapping skills. Many participants reported difficulty navigating when their GPS was disrupted, highlighting the importance of these skills in everyday life.

Clamiga: Common Lisp for the Amiga

https://nnamgreb.de/static/gfx/blogs/clamiga-aos3_1.jpg
CL-Amiga, a Common Lisp implementation for the Amiga family, is built to run on m68k and PPC architectures. It has a self-contained bytecode VM with no external runtime dependencies and supports various features like object system, condition system, macros, and interactive development style.

Firefox for iOS now has a native adblocker

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The weekend is 100 years old

https://i.guim.co.uk/img/media/1f3905995ffc776ec5f8197ecf6aca7e027a16e5/0_0_5992_4000/master/5992.jpg?width=445&dpr=1&s=none&crop=none
The concept of the weekend has evolved over 100 years, from its origins in Henry Ford's five-day workweek to modern debates about a four-day week. The weekend is now seen as a time for rest and leisure, but also for socializing and pursuing passions.

Show HN: A public AI whose memory is shared across all users

https://wildstatic.com/og.jpg
It's never been reset.Don't say anything you don't want people to know.Come back later and see how things have evolved.

A True Telnet BBS on a Casio Calculator

https://ei3lh.eu/wp-content/uploads/2026/08/1000013219-1024x683.png
The author, a hobbyist, has developed software for Casio Pocket Computer calculators and created a Bulletin Board Service (BBS) hosted on one of the devices. The BBS allows users to connect via telnet and log amateur radio contacts using the calculator's programming capabilities.

Before Rightmove, there was the Cosmorama

https://www.ianvisits.co.uk/articles/wp-content/uploads/sites/2/2026/08/Cosmorama-room.jpg
A London estate agent was offering prospective buyers an early form of “virtual property tour” more than 160 years before online listings and digital walk-throughs became commonplace. Researchers have discovered that Brooks and Green, a high-end estate agency based in Old Bond Street, used an immersive visual technology known as a cosmorama during the 1840s and 1850s to promote sales of ...

Tasklet (YC P26) Is Hiring a Head of Design Engineering

https://tasklet.ai/og-image.png
Tasklet is hiring a Head of Design Engineering to create a simple, intuitive, and beautiful AI platform for businesses. The ideal candidate will be an exceptional product thinker, designer, and frontend engineer who can own the design process end-to-end.

Kimi Work attaches raw agent sessions to feedback reports

A user reverse engineered the Kimi Work desktop app and found a concerning feature where feedback reports attach 5 latest sessions without notice. They emailed Kimi to inform them, warning potential users about this possible data exposure.

A SAT Attack on Tarski's High School Algebra Problem

https://arxiv.org/static/browse/0.3.4/images/arxiv-logo-fb.png
A countermodel to Tarski's identity exists with 11 elements, but no smaller models satisfy it. The smallest possible countermodels are of size 12, and there are exactly 8,957,952 such models up to isomorphism.

Research papers using "kidney disappointment" instead of "kidney failure"

Researchers studied persistent kidney disappointment using the UCI dataset, exploring its causes and outcomes. Kidney failure can lead to various health issues, including heart problems, bone diseases, and increased potassium levels.

Does anyone run Postgres without PgBouncer?

https://brandur.org/assets/images/favicon/favicon-256.jpg
The author discusses the lack of standardization in Postgres connection pooling, citing PgBouncer as a widely used but often overlooked solution. Many managed Postgres providers bundle PgBouncer out of the box, but users still need to learn about its limitations and configuration.

Chestnut – eGPU dock with open-source firmware

https://hwbusters.com/wp-content/uploads/2026/08/comma-chestnut-egpu-hero.jpg
Comma.ai's Chestnut eGPU dock allows users to read and modify its firmware, a first for the industry. The $249-$799 dock enables more powerful driving models in cars, with some versions reaching 100W of power similar to Tesla's HW4.

Asus Bike Booster

https://dlcdnwebimgs.asus.com/gain/36fca81d-66d4-4a3a-9fa3-05976be35494/w800
Follow the user manual for safe and proper use of the ASUS Oxiis E250G1. Failure to comply with instructions may result in damage to the product or others, and voids warranty.

Superconducting monolayer cuprate with a single CuO2 plane

https://media.springernature.com/m312/springer-static/image/art%3A10.1038%2Fs41586-026-10857-1/MediaObjects/41586_2026_10857_Fig1_HTML.png
Researchers have created a single layer of Bi2Sr2CuO6+δ, containing only one CuO2 plane, to study high-temperature superconductivity in its extreme 2D limit. This reduction leads to an approximately 10% decrease in the optimal superconducting transition temperature and unprecedented tunability.

Asynchronous I/O in DuckDB: Work, Thread, Work

https://duckdb.org/images/blog/authors/pedro_holanda.jpg
DuckDB version 2.0 will support asynchronous reads of Parquet and CSV files, significantly speeding up queries when synchronous I/O saturates the available bandwidth. This change is particularly beneficial for remote data access, such as in data lakes like DuckLake.

AI Coding Without the Vibes

https://peterbloem.nl/images/soupcutter.jpg
The author argues that students should learn to use AI tools like Claude Fable to review their code, rather than relying solely on human reviewers. This approach allows for faster development and reduces the risk of bugs being missed, while still maintaining the benefits of human judgment and creativity in coding.

A U.S. Strategy to Prevent the Creation of Mirror Life

https://www.rand.org/content/rand/pubs/research_reports/RRA4335-1/_jcr_content/par/product.fit.264x264.jpeg/1785502103078.jpeg
Scientists warn of potential catastrophic risks from "mirror life," hypothetical organisms with reversed molecular orientation, which could escape immune detection and cause fatal infections. The US should engage in transparent scientific collaboration to prevent its creation by anyone, anywhere.

Cultivating a state of mind where new ideas are born (2023)

https://substackcdn.com/image/fetch/$s_!9VgW!,w_2400,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F4697c31d-2502-48d2-b6c1-11e5ea97536f_2560x2174.jpeg
The author discusses the importance of solitude and isolation for creative individuals, citing examples from mathematician Alexander Grothendieck and filmmaker Ingmar Bergman. They argue that this state allows for a heightened sensitivity to new ideas and a freedom from social pressure.

Software Engineering fundamentals matter more

A software engineer reflects on the role of agentic engineering, finding value in harnessing and models to solve development puzzles. They highlight the importance of human reasoning and critical thinking in software creation, beyond what large language models can offer.

Super El Niño Keeps Growing as New Forecasts Reach Record Territory Ahead Winter

https://www.severe-weather.eu/wp-content/gallery/long-range/el-nino-ocean-surface-temperature-anomaly-pacific-north-america-atmospheric-weather-bridge-united-states-canada-walker-cell-schematic-record-event-2026.jpg
A Super El Niño event is rapidly strengthening across the tropical Pacific, with record-level westerly wind anomalies and subsurface ocean heat driving its growth. The latest forecasts indicate a historic peak in late 2026/early 2027, with significant impacts on global weather patterns expected.

Guiding Ships with Moire Patterns (2018)

https://tinkerings.org/wp-content/uploads/2018/03/cut-pieces-v01.jpg?w=438&h=274
The user built a Moire pattern light to guide ships through channels, following the patent's claims closely. The system is intuitive and effective but may not be the best solution for all situations due to its narrow path requirement.

What I Learned Securing Sniffnet with the GitHub Secure Open Source Fund

https://sniffnet.app/assets/img/post/github-secure-open-source-fund/cover.png
The author of Sniffnet has participated in the GitHub Secure Open Source Fund, a program that improves security and sustainability of open-source software. The fund provided $10k in funding, training, and mentorship to help maintainers understand security as a baseline requirement.

Semaglutide linked to lower predicted dementia risk