Hacker News Digest
· 89 Hacker News
When AI cracks a hard math problem, we credit its reasoning. But the real edge may be its enormous context window, which acts like a giant scratchpad. Human working memory is severely limited, and st…
A new study analyzing real-world data suggests that semaglutide, a popular GLP-1 receptor agonist used for type 2 diabetes and obesity, may reduce the 5-year predicted risk of dementia by 26% compare…
In a GPU Mode auto-research contest, I achieved a 232x speedup over the baseline for batched QR factorization by using Codex to iteratively optimize a kernel. This post details my approach: learning…
The 2026 Super El Niño is accelerating at an unprecedented rate, with new data showing record westerly wind anomalies and a powerful Kelvin wave driving ocean warming. Forecasts now project peak anom…
Sean Byrne, an Irish security professional, was denied access to App Store Connect after Apple matched him against a U.S. Entity List entry for a 'Sean Byrne' at an address in Sligo. That entry stems…
Dmitry.GR argues that RISC-V's promise to dominate everything from microcontrollers to supercomputers is fundamentally flawed. He details how the ISA's design choices, such as poor interrupt handling…
A software engineer reflects on how AI collaboration mirrors leading a team, not programming a machine. The same request can yield different results, making predictability a thing of the past. The ke…
A new study in JACC shows that waist circumference and waist-to-hip ratio better predict cardiovascular risk than BMI alone. Analyzing data from over 260,000 people, researchers found that even those…
LymeAlert, the first at-home test for detecting Lyme disease in ticks, will launch in August. Developed by pediatric physician associate Erin Dawicki and co-founders Michelle Ewy and Brenda Ong, the…
In 1978, Japan's JIS X 0208 standard introduced several kanji with no clear origin, later dubbed 'ghost characters.' A 1997 investigation traced most to cataloging errors, like a mistaken stroke from…
Sam Altman explains why Y Combinator avoids coworking spaces: great ideas are fragile and easily killed by social pressure. Alexander Grothendieck's solitary years in Montpellier, where he reinvented…
Eigendrum is a web-based tool that lets you draw any shape and hear it as a real drum. It solves the eigenvalue problem for the shape's vibrations, accurately simulating the drumhead's modes and freq…
A magnitude 7.7 earthquake struck off the coast of East Nusa Tenggara, Indonesia, on August 14, 2026. The USGS warns of possible casualties and damage, with approximately 1.5 million people exposed t…
Eigendrum lets you draw any closed shape and hear its vibrational modes as a real drum. It numerically solves the eigenvalue problem −∇²u = λu with zero boundary conditions using finite elements, and…
Raph Levien, creator of Spiro curves, proposes a new curve family for 2D vector graphics that he believes can surpass cubic Béziers. The hyperbezier, defined by a Cesàro equation, offers smoother cur…
A surgical procedure called deep cervical lymphatic-venous anastomosis (dcLVA) is being performed on Alzheimer's patients, mostly in China, despite lacking solid evidence. The surgery connects neck l…
A new paper from experts in the field argues that despite the hype, AI has yet to demonstrate meaningful clinical impact in drug discovery. The authors call for a shift from modeling readily availabl…
Software engineers are rediscovering project management principles while working with AI agents, but they're rebranding them as novel ideas. The author argues that managing multiple AI agents is esse…
Jonathan Bartlett argues that introductory calculus is overloaded with redundant techniques that burden students. He proposes a simplified framework that reduces memorization while increasing flexibi…
Ploopy has unveiled the A+, the successor to its popular Adept trackball. It adds two extra buttons (for a total of eight), two programmable knobs for scrolling, a detachable wrist rest, and introduc…
Racket v9.3 is now available, bringing several notable improvements. The raco setup command can generate markdown documentation, and the teaching languages (BSL, ISL+, etc.) now match those selected…
In Loosdrecht, Netherlands, hundreds of residents live in boat-access-only homes built on thin strips of land within a lake. This unique geography is manmade, a result of centuries-old peat mining: b…
Jane Street, the quantitative trading firm, suffered a $15 billion loss following a market meltdown at Situational Awareness, a company it had invested in. The loss, reported by the Financial Times,…
ThoughtDAG transforms LLM conversations from hidden linear histories into visible, editable context graphs. You can clip passages from sources, link them to nodes, and wire exactly what the model see…
A deep dive into the PC version of Ecco the Dolphin reveals a hidden cheat menu, accessible by holding Shift+Ctrl while closing the About dialog. The menu offers stage select, unlimited health and ai…
In 1962, Egypt's missile program relied on former Nazi scientists, including Heinz Krug, a key coordinator. After a mysterious visitor, Krug disappeared from Munich, never to be seen again. His fate…
Newly obtained intelligence bulletins from fusion centers across the U.S. show law enforcement monitoring viral anti-Flock social media posts and warning local police about upcoming DeFlock protests,…
Security researchers have demonstrated a new hacking technique that can compromise a Boeing 737 by physically accessing a port on the aircraft's exterior. In less than 60 seconds, they can plug in a…
A satirical take on the modern web, this page skewers the cookie-cutter design of startup sites: serif fonts, random italics, em dashes, and the ubiquitous "Trusted by" logos from the same YC cohort.…
Satellite images analyzed by BBC Verify reveal the devastating impact of Europe's record-breaking summer heatwaves, showing shrunken glaciers, wildfire scars, and dried-up rivers. The Danube has hit…
For years, Michael Stapelberg occasionally found his Zsh history file truncated to only very old entries. After ruling out inotify and fatrace, he used bpftrace to trace Zsh's file operations, reveal…
A long-time Cloudflare user and small AI startup employee argues that the company has traded its engineering-first culture for a product-manager-driven obsession with AI features, leading to a sprawl…
GCC 16 guarantees that nested functions not capturing parent variables avoid trampolines, and GCC 17 adds built-ins to eliminate trampolines even for capturing functions. This enables safe, efficient…
An engineer builds a DIY spectrograph to expose the fundamental flaw in color photography: capturing only red, green, and blue light. The article explores how different light sources—from LEDs to gas…
Printytron is an AI-powered 3D model generator that turns plain English descriptions into print-ready STL files. Users describe a part—like a hose adapter or cable clip—and the AI builds a dimensiona…
On August 15, 1977, Ohio State University's Big Ear radio telescope detected a strong narrowband signal from the constellation Sagittarius. The 72-second burst, later dubbed the Wow! signal, bore the…
A computer scientist handed a brain's wiring diagram and asked to write a genome-sized program that builds it hits a wall: the genome is too small to store per-synapse wiring, and blind axon search w…
In the last 2-3 years, mostly because of AI, keeping up with interesting articles on HN has become harder and harder. How do you deal with it? Besides the simple solution of simply ignoring interesti…
tawc is an agent-built project that runs CLI and graphical Linux programs on Android without root access. It combines tawcroot, a faster alternative to PRoot, with a Wayland compositor and a UI that…
Algebraic topology is often reduced to playful shapes, but it underpins modern math. This post reveals a surprising connection: the same 'one-sidedness' that makes a Möbius strip strange also appears…
A Connecticut judge has identified what appears to be the first US case of prompt injection in court filings. Plaintiff Matthew Elliott, a pro se litigant, hid text in white, tiny-point type that ins…
Silent Shark is a tactical map-based WWII submarine simulator that puts you in command of a Pacific fleet submarine. Plot bearings, estimate target motion, and turn imperfect reports into intercepts…
Disney Research presents a novel method for vectorizing line art using 2D Gaussian splatting on Bézier splines. The approach converts raster line drawings into smooth, scalable vector curves, preserv…
A French PR firm, Havas Media, working for Israel, has set up a fake think tank called the Hanover Institute for Public Policy to feed large-language models like ChatGPT with pro-Israel content. The…
Bede Liu, an IEEE Life Fellow and pioneer of digital signal processing, passed away on May 7 at age 91. A professor at Princeton for over 50 years, his research enabled the transition from analog to…
Jesse from the Thunderbird design team recounts the journey to redesign the desktop calendar, aiming to modernize its look and streamline its functionality. The new design features a central grid, a…
Independent booksellers worldwide report mysterious bulk orders of used books, often shipped to warehouses and destroyed. The culprit appears to be AI companies like Anthropic, which are 'destructive…
In 1935, AEG's Magnetophon debuted at the Berlin Radio Show, introducing high-fidelity magnetic tape recording. Its sound quality was so good that listeners couldn't tell live broadcasts from prereco…
The Debian project has initiated a formal vote among its developers to decide the future of AI and LLM contributions. The discussion centers on whether and how to integrate AI-generated code and cont…
Stephen Cresswell releases Yadda 3.0.0, a modernized BDD library for JavaScript, and reveals that Claude Code with Opus 4.8 wrote most of the code. He argues that executable specifications are becomi…
Stanford researchers used a genomic language model to design 16 functional bacteriophages from scratch, marking the first complete AI-generated viral genomes. The viruses successfully infected antibi…
Most SSH hardening guides stop at key-only auth and fail2ban, but port 22 remains exposed to scanners and zero-days. The author uses fwknop's Single Packet Authorization (SPA) to make the SSH daemon…
The humble <img> tag is more complex than it seems. Its content (the actual image) can overflow its container (the element) when using object-fit: cover, border-radius, or object-position. The articl…
The W3C's 'Understanding WCAG 2.2' document, which explains the intent and remediation for each success criterion, is now available as an EPUB and a PDF/UA file. This unofficial conversion, generated…
TreasuryDirect is upgrading its login system with ID.me, a government-verified identity provider, to enhance security and streamline access. Starting September 13, 2026, users can begin using ID.me,…
Geek Fighter is a 2D fighting game that pits ten iconic tech figures against each other in pixelated brawls. Choose from Steve Jobs, Mark Zuckerberg, Elon Musk, and more, each with unique moves and s…
Michael Kratsios, the White House science chief, argues that America's scientific enterprise, built on the post-war 'Endless Frontier' model, needs a major overhaul to harness AI and out-compete Chin…
SugarTrack is a free, open-source Android app for logging blood sugar readings. It works entirely offline, with no account, no cloud, and no servers—all data stays on the device. Users can log readin…
Deltix is an open beta tool that lets you describe a task in plain English, which it then runs on an iOS simulator to see if a real user could complete it. The agent runs locally on your Mac, keeping…
Amp, a 20-person engineering team, ships continuously by pushing directly to main, skipping pull requests entirely. When pursuing SOC 2, they discovered the framework doesn't mandate PRs—it requires…
New EEG recordings during REM sleep reveal that the brain shifts its focus from external stimuli to internal processing, a finding that could reshape our understanding of dreaming and memory consolid…
In 1638, Galileo Galilei demonstrated that scaling up a human body would be physically impossible: bone strength grows with the square of size, but weight grows with the cube. This means a giant's bo…
In the latest installment of his series on NSA influence in IETF, Daniel J. Bernstein reports that 82 people voiced unambiguous opposition to a spec that would remove ECC from hybrid ECC+ML-KEM in TL…
A new file in X's open-source algorithm repository reveals a filter that suppresses content from 665 user accounts reported to Brazil's Electoral Court ahead of the 2026 election. The filter, impleme…
Alexander Cobleigh shares his take on Ratfactor's paper-based project stack system. Using defunct business cards and a homemade cardboard organizer cut from a pizza box, he tracks tasks in three stac…
BriskDB transforms ordinary SQLite files into a single sharded database, enabling parallel writes across independent WAL files while maintaining compatibility with PostgreSQL, HTTP, Rust, and Python.…
This deep dive into xorshift generators, the algorithm behind countless games and simulations, explores why specific shift values like 13, 17, and 5 are special. It explains how these three lines of…
T3X/0 is a small, portable, procedural, block-structured, recursive, and almost typeless programming language, the latest in the T3X family. Its compiler is freely available under 0BSD or public doma…
Working with AI in coding shifts your time from implementation to upfront design and detailed prompting. You can give a full spec, a high-level goal, or something in between, but each approach costs…
Jaithon 3 is a dynamically executed, garbage-collected language with a bytecode VM, drawing architecture from Java and syntax from Rust and Python. It is heavily bootstrapped, with most features writ…
hormuz.now offers a free, real-time dashboard of vessel traffic in the Strait of Hormuz, the maritime chokepoint between Iran and Oman. The tracker displays AIS data for tankers, cargo ships, and oth…
Hypnagogic Quasicrystals is an interactive playground that lets you explore mesmerizing quasicrystal animations in your browser, with optional WebXR support for immersive VR. You can customize layers…
Zig's I/O interface overhaul, nicknamed Writergate, reached completion in August 2025 with the removal of generic writer and reader types. The new API uses concrete types with vtables, explicit buffe…
A new report from the Machine Intelligence Research Institute (MIRI) warns that leading AI companies are racing to build superintelligent AI, and that if they succeed with current methods, the likely…
Corgi, an AI insurance startup known for its 24-hour cafes, forced the takedown of CorgiGirls.com, a site that let users vote on the attractiveness of its female employees. The site, live for three d…
Author Hugh Howey reflects on the history of content farms in publishing, from the Stratemeyer Syndicate to James Patterson, and how AI is now accelerating this trend. He argues that readers and writ…
Yesterdays of Richmond is an interactive platform that places historical photographs of Richmond, Virginia, on a modern map. Users can browse, search, and georeference images from local archives, mus…
In this personal account, mathematician Daniel Litt imagines a future where AI becomes superhuman at mathematics, yet progress stalls. He describes how AI-driven output explodes while human engagemen…
Netflix introduces GenRec, an LLM-based recommendation ranker that post-trains an internal foundation model on Netflix-specific data and objectives. By verbalizing user histories and item metadata in…
Chinese researchers are testing DREADDs, a gene therapy that can dial down neuronal activity, in at least seven clinical trials for conditions like intractable epilepsy, Parkinson's disease, and neur…
Meta CEO Mark Zuckerberg's 6,500-word open letter on AI is the latest in a trend of tech leaders issuing manifestos to shape public perception. From Marc Andreessen's 'Techno-Optimist Manifesto' to S…
Dr. Drang combines TerminalWidget and Astropy to create a desktop widget that shows the azimuth, altitude, and constellation of the Sun, Moon, and planets up to Saturn. The script runs every 30 minut…
Keeta's two-phase consensus algorithm, described informally in its whitepaper, has now been formally specified in Quint and model-checked with TLC under Byzantine faults. The model proves agreement i…
Sophontic, a Delaware C-corp founded in 2026, is developing a model that achieves reasoning performance exceeding that of models up to 60 times its size. The company rejects the paradigm of scale, in…
This week's Video Friday roundup features the DARPA Lift Challenge, where teams showcase unconventional heavy-lift drone designs. Also included: NASA's SkyFall Mars helicopter with a fabric antenna f…
Claude Trofeo HUD transforms a $38 Thermalright Trofeo Vision LCD into a live desktop HUD for Claude usage. Running on macOS, it displays session and weekly limit bars with reset countdowns, today's…
A new study reveals that ant colonies solve complex navigation puzzles more effectively than algorithms designed for gravity-based problem solving. Researchers found that the collective intelligence…
In this 2012 talk from Philly ETE, Coda Hale of Yammer explores the mismatch between human cognition and software development. Drawing on modern theories of cognition, he argues that our tools should…
RunTheNumbers is an open-source project that settles personal finance debates with data. It provides code and pinned datasets behind a series of videos, allowing anyone to reproduce every number on s…