Show HN: Strange Attractors

https://blog.shashanktomar.com/_next/image?url=%2Fassets%2Fattractors%2Fphase-space-figure.webp&w=3840&q=75
The user discusses dynamical systems, chaos theory, and strange attractors, explaining how they create complex patterns and behaviors from simple equations. They also describe a visualization of the Thomas Attractor using Three.js, which demonstrates the butterfly effect and showcases the power of chaotic systems.

Attention lapses due to sleep deprivation due to flushing fluid from brain

https://news.mit.edu/sites/default/files/images/202510/MIT-Sleep-Deprivation-01.jpg
New research from MIT shows that attention lapses due to sleep deprivation coincide with a flushing of fluid from the brain, a process that normally occurs during sleep. This flushing is believed to be necessary for maintaining a healthy brain, but it comes at a cost of dramatically impaired attention.

John Carmack on mutable variables

Something went wrong, but don’t fret — let’s give it another shot. Some privacy related extensions may cause issues on x.com. Please disable them and try again.

Futurelock: A subtle risk in async Rust

Futurelock is a type of deadlock in asynchronous Rust programming where a task is waiting on a future that itself depends on a future that the task is responsible for running. This can happen when using tokio::select! with a &mut future and awaiting in one of the other branches, or when polling futures from a FuturesOrdered/FuturesUnordered and then awaiting on any other future.

How OpenAI uses complex and circular deals to fuel its multibillion-dollar rise

https://static01.nytimes.com/newsgraphics/bk-Prh5jeFdOVdDfQ/UAzUsNaNoHQUAg01MKLcmsMIPB4/_assets/header2-Artboard_1.png
Sam Altman says technological progress is driven by both innovation and financial models. OpenAI's unusual financial agreements with tech companies may fuel a potential financial bubble in the AI industry.

Addiction Markets

https://substackcdn.com/image/fetch/$s_!Gpib!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb3ae2e5e-e6ee-44c6-9faf-805eab47d3b6_881x468.png
Maryland state Senator Joanne C. Benson introduced a bill to repeal online sports wagering, part of a growing counter-attack against corporate-run gambling in America. Americans are increasingly turning against online sports betting due to its addictive nature and negative consequences.

Ask HN: Who uses open LLMs and coding assistants locally? Share setup and laptop

You're interested in real-world workflows for using open-source LLMs and coding assistants on laptops. You're looking for specific models, integrations, hardware, tasks, and reliability for a personal investigation.

AMD could enter ARM market with Sound Wave APU built on TSMC 3nm process

https://www.guru3d.com/data/teaser/default/amd-logo.png
AMD is developing an ARM-based APU called "Sound Wave" for thin and light computing platforms. It features a 2 + 4 hybrid core design, 4 RDNA 3.5 compute units, and AMD's fourth-generation AI engine.

Just use a button

https://gomakethings.com/img/articles/that-not-how-it-works-thats-not-how-any-of-this-works.gif
A developer argues that using a <div> instead of a <button> can be problematic for accessibility. Adding a role attribute to a <div> does not fix keyboard navigation issues.

AI scrapers request commented scripts

https://cryptography.dog/images/brand/png-alpha/smol/cat.png
You discovered abusive bot behavior on your server, specifically scrapers trying to collect content for training LLMs by requesting a non-existent JavaScript file.

S.A.R.C.A.S.M: Slightly Annoying Rubik's Cube Automatic Solving Machine

https://raw.githubusercontent.com/vindar/SARCASM/main/sarcasm.jpg
A robot named S.A.R.C.A.S.M scans and solves Rubik's Cube with comments. Code modifications are required for Teensy to fit in RAM.

Another European agency shifts off US Tech as digital sovereignty gains steam

https://www.zdnet.com/a/img/resize/e27b3953df87b835a77deeeec01f311aa283a5ec/2022/08/05/e2171bd1-84f6-4ca8-9801-2abdeb61a365/steven-vaughan-nichols.jpg?auto=webp&fit=crop&frame=1&height=192&width=192
Austria's Ministry of Economy migrated 1,200 employees to a Nextcloud-based cloud and collaboration platform hosted on Austrian-based infrastructure to achieve digital sovereignty. This move aligns with European governments' trend to control sensitive data and reduce reliance on US-based tech providers.

My Impressions of the MacBook Pro M4

https://michael.stapelberg.ch/posts/2025-10-31-macbook-pro-m4-impressions/2025-10-30-macbooks-displays_hu_4cb7e6e8fae8437.jpg
The user replaced their 4-year-old MacBook Air M1 with a MacBook Pro M4 for its improved display and battery life. They are happy with their choice, especially the nano-texture display which reduces reflections.

Use DuckDB-WASM to query TB of data in browser

https://lil-blog-media.s3.amazonaws.com/macey_vertical_filing_cabinet_1903.jpg
LIL's Data.gov Archive Search provides low-effort discovery with minimal resources, using static hosting and client-side data analysis. This approach enables dynamic discovery while reducing costs and technical overhead, promoting sustained access to large datasets.

ICE and the Smartphone Panopticon

https://media.newyorker.com/photos/69022931d85a3e121653ebdd/2:2/w_2560%2Cc_limit/NewYorker_ICEblock_sketch_final%2520.jpg
City residents in New York and other US cities are resisting government raids by documenting agents on social media, forcing them to wear masks and exposing their activities. However, the government is also using social media to identify and target protesters, raising concerns about digital surveillance and censorship.

Kimi Linear: An Expressive, Efficient Attention Architecture

https://raw.githubusercontent.com/MoonshotAI/Kimi-Linear/master/figures/perf_speed.png
Kimi Linear achieves superior performance and efficiency in various tasks, including long-context and RL-style benchmarks. It offers significant speedups and reduces memory usage by up to 75% compared to full attention methods.

Reasoning models reason well, until they don't

https://arxiv.org/static/browse/0.3.4/images/arxiv-logo-fb.png
Large reasoning models (LRMs) excel in simple reasoning tasks but fail catastrophically at higher complexity. A new dataset shows LRMs' performance drops abruptly at sufficient complexity, limiting their generalization.

Ground stop at JFK due to staffing

CTL ELEMENT: JFK ELEMENT TYPE: APT ADL TIME: 0124Z GROUND STOP PERIOD: 31/0114Z - 31/0230Z CUMULATIVE PROGRAM PERIOD: 30/1613Z - 31/0359Z DEP FACILITIES INCLUDED: (Manual) ZTL ZDC ZJX ZMA ZME ZID PREVIOUS TOTAL, MAXIMUM, AVERAGE DELAYS: 6796 / 549 / 227 NEW TOTAL, MAXIMUM, AVERAGE DELAYS: 7920 / 609 / 264 PROBABILITY OF EXTENSION: MEDIUM IMPACTING CONDITION: STAFFING / STAFFING COMMENTS:

The cryptography behind electronic passports

https://blog.trailofbits.com/img/passports_figure_1.png
Electronic passports contain an embedded device with a filesystem, access controls, and cryptographic protocols to prevent unauthorized reading, eavesdropping, forgery, and copying. They use a secure channel to protect data, but legacy protocols put passport holders at risk.

Nix Derivation Madness

User is experiencing confusion with Nix package system due to fixed-output derivations. They found that changing a derivation's attributes can create a new derivation path without affecting the output path.

A theoretical way to circumvent Android developer verification

https://enaix.github.io/assets/img/android-skull.jpg
Google introduced developer verification to link APKs to their developers, affecting small developers and hobbyists. A proposed hack involves a verified loader APK that dynamically loads user-chosen apps, but faces challenges with verification, obfuscation, and potential Google restrictions.

Tim Bray on Grokipedia

https://www.tbray.org/ongoing/potd.png
Tim Bray reviewed Grokipedia, a Wikipedia alternative generated by an LLM, and found it overly complete but riddled with errors and lacking in useful information. Grokipedia's biased content, often citing right-wing think-tanks, aims to counter Wikipedia's alleged "woke" bias but fails to provide credible arguments.

Nim 2.2.6

https://nim-lang.org/assets/img/twitter_banner.png
Nim Team released version 2.2.6 with 141 commits, including bugfixes and improvements. It features enhanced exception handling, performance improvements, and fixes 15 known issues.

Claude outage

Claude's Status Page - Elevated errors on claude.ai.

Immutable releases are now generally available on GitHub

https://github.blog/wp-content/uploads/2025/10/506111520-dcadd7e0-74fd-4dc6-90c1-363ff053672c.jpg?resize=2064%2C1084
GitHub now supports immutable releases for supply chain security, protecting assets from tampering after publication. Immutable releases receive signed attestations for authenticity and integrity verification.

Perfetto: Swiss army knife for Linux client tracing

https://lalitm.com/img/perfetto-swiss-army-03.jpg
The user gave a talk at the 2025 Tracing Summit about Perfetto, a suite of tools for debugging and root-causing performance issues, and demonstrated its use in debugging a performance issue in a Rust program. The user showed how Perfetto's UI can be used to visualize and analyze different types of traces, including perf, ftrace, and app tracing, to identify the root cause of the performance issue.

Sustainable memristors from shiitake mycelium for high-frequency bioelectronics

https://storage.googleapis.com/plos-corpus-prod/10.1371/journal.pone.0328965/1/pone.0328965.g001.PNG_I?X-Goog-Algorithm=GOOG4-RSA-SHA256&X-Goog-Credential=wombat-sa%40plos-prod.iam.gserviceaccount.com%2F20251031%2Fauto%2Fstorage%2Fgoog4_request&X-Goog-Date=20251031T142956Z&X-Goog-Expires=86400&X-Goog-SignedHeaders=host&X-Goog-Signature=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
Researchers used shiitake fungi to create memristors, which can mimic neural functions and be used in neuromorphic computing. Fungal memristors are environmentally sustainable, biodegradable, and can be grown using simple bioreactors.

How to build silos and decrease collaboration on purpose

https://www.rubick.com/static/49e7b817bacc5b4e752102948a7061a0/5fd6b/silo.jpg
Leaders should focus on maximizing collaboration within teams and minimizing collaboration between teams to achieve shared understanding and goals. Excessive collaboration between teams can be a sign of poor organizational structure, and leaders should instead focus on coordination and information flow to achieve desired outcomes.

Ubuntu Introduces Architecture Variants

Ubuntu 25.10 introduces architecture variants for x86-64, allowing optimized packages for x86-64-v3. This feature is currently opt-in and may require 2x-3x more storage for repositories and mirrors.

Myths Programmers Believe about CPU Caches (2018)

https://software.rajivprab.com/wp-content/uploads/2019/07/cache.png
A computer engineer explains how cache coherency is implemented in modern x86 CPUs, using protocols like MESI to keep caches in sync and prevent data mismatches. This coherency is invisible to software developers, but understanding it can help prevent misconceptions about concurrency and race conditions, and improve system design principles.

Show HN: Quibbler – A critic for your coding agent that learns what you want

https://opengraph.githubassets.com/a262549b9b28cec5786eab21d7107a7fafdcfea37bf77983575928dc4c63dd13/fulcrumresearch/quibbler
Quibbler is a background agent that critiques coding actions and learns rules from usage to enforce them automatically. It requires an API key and must be called with user instructions and a summary of changes made after code changes.

Canva’s affinity strategy: Normies over power users

https://static.tedium.co/uploads/250x250.png
Canva offers free design software, Affinity, to compete with Adobe Creative Cloud, targeting businesses with a lower cost plan. Canva's strategy is to make the high-end tool free and use it to generate content in its own platform.

Fire TV: Amazon to block piracy apps in the future

https://heise.cloudimg.io/width/610/q85.png-lossy-85.webp-lossy-85.foil1/_www-heise-de_/imgs/18/4/9/6/7/4/3/9/Streaming-Piraterie-a711c77c4e2bdafe.png
Amazon will block apps on Fire TV that provide access to pirated content starting today. Users will be notified before the app is blocked, but can still install apps via sideloading.

x86 architecture 1 byte opcodes

x86 architecture has special treatment for PM64 O32 NOP with REP prefix and XCHG EAX,EAX instruction. This behavior was supported on 8086/8088 processors and is still used by a corporate entity in 2025.

Roadmap for improving the type checker

https://global.discourse-cdn.com/swift/original/1X/0a90dde98a223f5841eeca49d89dc9f57592e8d6.png
The Swift compiler team is working to improve expression type checking by optimizing the constraint solver, reducing exponential time complexity, and eliminating performance cliffs. Recent changes have improved type checking time, and future plans include overhauling the bindings subsystem, eliminating old performance hacks, and improving diagnostics.

Amazon says it didn't cut people because of money. But because of 'culture'

https://media.cnn.com/api/v1/images/stellar/prod/c-gettyimages-2243466342.jpg?c=original&q=w_860,c_fill
Amazon is cutting 14,000 employees due to a "culture" issue, not financial or AI reasons. The company aims to stay "nimble" by removing layers and operating like a startup.

The only people who feel good are making over $200k and have large portfolios

https://fortune.com/img-assets/wp-content/uploads/2025/10/image-2.png?w=1440&q=85
Economist Diane Swonk says the US economy looks better than it feels due to eroding data quality and a widening wealth gap. She expects a dramatic slowdown in the fourth quarter due to consumer stress and tariff pass-throughs.

Some rando turned me into a meme coin

https://cloudfour.com/wp-content/uploads/2025/08/initial-li-dm.png
A stranger created a meme coin called $grigs based on a 2007 tweet of mine that used the word "grok." The community was trying to get Elon Musk to notice the coin, but I had blocked him long ago.

No Code

https://opengraph.githubassets.com/2aff1197a0f49d02bb23d5b1c0528a3492e924559bfeff40c630d744f65d1ff6/lemonyte/no-code
This package allows writing nothing and still having code do something. It provides functions to convert between something and nothing, and accepts input from stdin.

Claude.ai Is Down

Talk with Claude, an AI assistant from Anthropic

Rotating Workforce Scheduling in MiniZinc

https://zayenz.se/_astro/cactus_elapsed_time_base.BxWzAftW_Z1YEb3i.webp
A MiniZinc model is developed to solve the Rotating Workforce Scheduling problem, which involves creating a weekly schedule for a group of workers covering projected needs, with each worker rotating through different schedules. The model is tested with various solvers, including Gecode, OR-Tools CP-SAT, and HiGHS, and the results show that CP-SAT is the best solver for large instances, while ...

ANTML: Anthropic’s Markup Language

https://karashiiro.leaflet.pub/api/atproto_images?did=did:plc:egymjjk6rg6td4wzhyxqnwlm&cid=bafkreid6kkdm4p4ewmm6ee5zei4b2iix34cg5hevsfpneqodfhquqyg6pq
The user is asking about enabling extended thinking in Claude and how the API knows when the model is thinking. The API uses ANTML tags, specifically the thinking parameter, to enable extended thinking and distinguish thinking blocks from regular system prompt tags.

Pornhub says UK visitors down 77% since age checks came in

https://ichef.bbci.co.uk/news/480/cpsprodpb/9300/live/f9e23430-b38c-11f0-95ce-0ded4626bbb9.jpg.webp
The UK's Online Safety Act has led to a 77% drop in Pornhub visitors, with Google data showing a 50% decrease in searches since the law came into effect. However, Pornhub claims some users are accessing the site through VPNs, which mask a user's location, and experts say this could be partly responsible for the decline in visitors.

Can we talk about the rude installers not asking for installation locations?

Installers should ask users where they want to install software, not default to admin-restricted directories. Using sandboxing tools like Firejail or Sandboxie allows users to control installation locations.

Photographing the rare brown hyena stalking a diamond mining ghost town

https://ichef.bbci.co.uk/images/ic/480xn/p0m8k1yv.jpg.webp
South African wildlife photographer Wim van den Heever captured a rare brown hyena in an abandoned diamond mining town in Namibia after 10 years of trying. The image won the Wildlife Photographer of the Year award and highlights the importance of preserving the brown hyena's habitat.

The Hunger Games Begin

https://substackcdn.com/image/fetch/$s_!Vn2x!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F512e35b7-3e55-4eaf-bed3-438f69adf3a6_1428x910.png
The US government is set to cut off food aid for 40 million Americans due to the shutdown, despite having $5 billion in contingency funds. This will hurt many Republican voters, particularly in rural areas, and is seen as a cruel and destructive move.

Warp Terminal changes pricing model

https://www.warp.dev/static/image/r/w=3840,q=80,format=auto/Pricing_Blog_New_Plans_081419c399.png
Warp introduces a new $20/month plan called Build with 1,500 credits and BYOK option. Existing users will switch to Build on their first renewal after December 1, 2025, with some seeing lower costs.

After delays, Egypt set for lavish opening of grand museum

https://scx1.b-cdn.net/csz/news/800a/2025/egypts-long-awaited-gr.jpg
Egypt is set to open the Grand Egyptian Museum, a $1 billion ultra-modern museum housing thousands of artifacts, on Saturday. The museum aims to attract five million visitors annually and boost Egypt's vital tourism industry.

Git CLI tool for intelligently creating branch names

https://opengraph.githubassets.com/d4146b768ea6e67d42e856f7fe8c453d1418221bf78925f8ecf541c7dd0fe892/ytreister/gibr
gibr connects Git to issue trackers, creating consistent branches. It's fully configurable and supports various trackers and team setups.

An investigation into Substrate

https://substackcdn.com/image/fetch/$s_!gSc6!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F510c0b52-73aa-4452-acb4-6fd86adac8dc_1330x1302.png
Substrate's claims of revolutionary chip-making technology are likely fake due to the company's lack of transparency and the founder's history of scams. The company's unwillingness to share evidence of its technology and its fake job postings suggest it lacks the talent and expertise to achieve its goals.

Show HN: Build your own Bracket City puzzle

You can create a custom, shareable bracket puzzle with a desktop or mobile device, and it can resolve to any word or phrase. The tool is accessible after reading the prompts and instructions.

Show HN: A fast, dependency-free traceroute implementation in pure C

https://opengraph.githubassets.com/787ebf6e2f786ba4e8f27cf64b509779ad850c84f3ee7b670b82b2a5de9f1ac5/davidesantangelo/fastrace
Fastrace is a fast traceroute utility for network diagnostics and performance analysis. It maps packet routes with detailed timing and identifies potential bottlenecks.
We aim to create safe and responsible AI tools that empower users to innovate while ensuring safety and accountability. Our Usage Policies set clear expectations for acceptable use and protect users from harm.

OpenAI thought to be preparing for $1T stock market float

https://i.guim.co.uk/img/media/55e045641d9df43e2f4c6ecfd36161da879a7b45/700_0_3500_2801/master/3500.jpg?width=465&dpr=1&s=none&crop=none
OpenAI is reportedly planning a $1tn stock market listing in 2026 or 2027 to raise at least $60bn. The move would support the company's ambitions to build datacentres and infrastructure for its chatbots.

Debug like a boss: 10 debugging hacks for developers, quality engineers, testers

https://d8iqbmvu05s9c.cloudfront.net/kbbj8n2img6yvfthr3uhkqvyog7u
Debugging involves identifying assumptions, testing them, and using tools like logs and breakpoints to isolate issues. Effective debugging requires patience, collaboration, and a willingness to re-think problems, often leading to faster and smarter solutions.

Will Paramount Cancel Jon Stewart?

https://media.newyorker.com/photos/59097b70ebe912338a37864e/1:1/w_270%2Cc_limit/undefined
Jon Stewart discussed his concerns about the current state of satire and comedy under the Trump administration. He believes that the administration's actions are a threat to free speech and that comedians are a visible manifestation of the issues, but the real victims are those struggling to have a voice.

Chromium Browser DoS Attack via Document.title Exploitation

https://repository-images.githubusercontent.com/1085067199/246d5078-403b-4d6d-9f79-dfe83d448212
Brash is a critical vulnerability in Blink rendering engine that allows Chromium browsers to collapse by exploiting an architectural flaw in document.title API updates. It affects over 3 billion people and can be used to halt or slow down other processes running simultaneously.

Animals could easily be talking to us if we tried

Real-time brain imaging and AI can be combined to enable animals to communicate through speech. This technology seems more feasible than other ambitious projects like AI alignment or quantum computing.

Fuck Up My Site (Halloween Edition)

https://www.fuckupmysite.com/_next/image?url=%2Ffuckupmysite%2Ffuckupmysite.png&w=256&q=75
This tool applies visual chaos effects to websites for comedic purposes only, without storing personal info. Use it for entertainment, avoiding sensitive data entry on unsecured proxied sites.