top 50% hacker news stories for 2026-01-21

EU–INC – One Europe. One Standard. – Pan-European Legal Entity

https://www.eu-inc.org/

7 months ago

Brain on ChatGPT: Accumulation of Cognitive Debt When Using an AI Assistant

https://www.media.mit.edu/publications/your-brain-on-chatgpt/

7 months ago

Show HN: ChartGPU – WebGPU-powered charting library (1M points at 60fps)

https://github.com/ChartGPU/ChartGPU

7 months ago

Anthropic's original take home assignment open sourced

https://github.com/anthropics/original_performance_takehome

7 months ago

Claude's New Constitution

https://www.anthropic.com/news/claude-new-constitution

7 months ago

Things I've learned in my 10 years as an engineering manager

https://www.jampa.dev/p/lessons-learned-after-10-years-as

7 months ago

Show HN: Sweep, Open-weights 1.5B model for next-edit autocomplete

https://huggingface.co/sweepai/sweep-next-edit-1.5B

7 months ago

Skip Is Now Free and Open Source

https://skip.dev/blog/skip-is-free/

7 months ago

Waiting for dawn in search: Search index, Google rulings and impact on Kagi

https://blog.kagi.com/waiting-dawn-search

7 months ago

Bending Spoons laid off almost everybody at Vimeo yesterday

https://news.ycombinator.com/item?id=46707699

7 months ago

Curl removes bug bounties because of AI slop

https://etn.se/index.php/nyheter/72808-curl-removes-bug-bounties.html

7 months ago

Linux from Scratch

https://www.linuxfromscratch.org/lfs/view/stable/

7 months ago

eBay Explicitly Bans AI "Buy for Me" Agents in User Agreement Update

https://www.valueaddedresource.net/ebay-bans-ai-agents-updates-arbitration-user-agreement-feb-2026/

7 months ago

Stanford scientists found a way to regrow cartilage and stop arthritis

https://www.sciencedaily.com/releases/2026/01/260120000333.htm

7 months ago

AI Destroys Institutions

https://cyberlaw.stanford.edu/publications/how-ai-destroys-institutions/

7 months ago

SETI Home Is in Hiberation

https://setiathome.berkeley.edu/

7 months ago

Can you slim macOS down?

https://eclecticlight.co/2026/01/21/can-you-slim-macos-down/

7 months ago

Nested Code Fences in Markdown

https://susam.net/nested-code-fences.html

7 months ago

RSS.Social – the latest and best from small sites across the web

https://rss.social/

7 months ago

Stories removed from the Hacker News Front Page, updated in real time

https://github.com/vitoplantamura/HackerNewsRemovals

7 months ago

A Lament for Aperture

https://ikennd.ac/blog/2026/01/old-man-yells-at-modern-software-design/

7 months ago

JPEG XL Demo Page

https://tildeweb.nl/~michiel/jxl/

7 months ago

The percentage of Show HN posts is increasing, but their scores are decreasing

https://snubi.net/posts/Show-HN/

7 months ago

Ireland wants to give its cops spyware, ability to crack encrypted messages

https://www.theregister.com/2026/01/21/ireland_wants_to_give_police/

7 months ago

Swedish Alecta has sold off an estimated $8B of US Treasury Bonds

https://www.di.se/nyheter/di-avslojar-alecta-har-dumpat-amerikanska-statspapper/

7 months ago

The Agentic AI Handbook: Production-Ready Patterns

https://www.nibzard.com/agentic-handbook

7 months ago

Show HN: Rails UI

https://railsui.com/

7 months ago

AdGuard VPN protocol goes open-source – meet TrustTunnel

https://adguard-vpn.com/en/blog/adguard-vpn-protocol-goes-open-source-meet-trusttunnel.html

7 months ago

Spotify won court order against Anna's Archive, taking down .org domain

https://arstechnica.com/tech-policy/2026/01/annas-archive-said-spotify-scrape-didnt-cause-domain-suspension-it-was-wrong/

7 months ago

I Made Zig Compute 33M Satellite Positions in 3 Seconds. No GPU Required

https://atempleton.bearblog.dev/i-made-zig-compute-33-million-satellite-positions-in-3-seconds-no-gpu-required/

7 months ago

SmartOS

https://docs.smartos.org/

7 months ago

Take potentially dangerous PDFs, and convert them to safe PDFs

https://github.com/freedomofpress/dangerzone

7 months ago

Canada Announces Divorce from America

https://charlotteclymer.substack.com/p/canada-announces-divorce-from-america

7 months ago

Disaster planning for regular folks (2015)

https://lcamtuf.coredump.cx/prep/index-old.shtml

7 months ago

Vibecoding #2

https://matklad.github.io/2026/01/20/vibecoding-2.html

7 months ago

Show HN: TerabyteDeals – Compare storage prices by $/TB

https://terabytedeals.com

7 months ago

Parliament tells Dutch gov't to keep DigiD data out of American hands

https://nltimes.nl/2026/01/21/parliament-tells-dutch-govt-keep-digid-data-american-hands

7 months ago

Lix – universal version control system for binary files

https://lix.dev/blog/introducing-lix/

7 months ago

Tell HN: 2 years building a kids audio app as a solo dev – lessons learned

https://news.ycombinator.com/item?id=46705676

7 months ago

The super-slow conversion of the U.S. to metric (2025)

https://www.thefabricator.com/thefabricator/blog/testingmeasuring/the-super-slow-conversion-of-the-us-to-metric

7 months ago

TeraWave Satellite Communications Network

https://www.blueorigin.com/terawave

7 months ago

Comic-Con Bans AI Art After Artist Pushback

https://www.404media.co/comic-con-bans-ai-art-after-artist-pushback/

7 months ago

EU Parliament freezes US trade deal ratification

https://www.lemonde.fr/en/international/article/2026/01/20/eu-parliament-freezes-us-trade-deal-after-trump-s-tariff-threats-over-greenland_6749625_4.html

7 months ago

PicoPCMCIA – a PCMCIA development board for retro-computing enthusiasts

https://www.yyzkevin.com/picopcmcia/

7 months ago

Nukeproof: Manifesto for European Data Sovereignty

https://nukeproof.org/

7 months ago

ANN v3: 200ms p99 query latency over 100B vectors

https://turbopuffer.com/blog/ann-v3

7 months ago

FreeBSD

https://docs.freebsd.org/en/books/handbook/

7 months ago

Libbbf: Bound Book Format, A high-performance container for comics and manga

https://github.com/ef1500/libbbf

7 months ago

illumos

https://illumos.org/

7 months ago

European lawmakers suspend U.S. trade deal

https://www.cnbc.com/2026/01/21/european-lawmakers-suspend-us-trade-deal-amid-greenland-tariff-tensions.html

7 months ago

Verizon starts requiring 365 days of paid service before it will unlock phones

https://arstechnica.com/tech-policy/2026/01/verizon-starts-requiring-365-days-of-paid-service-before-it-will-unlock-phones/

7 months ago

GenAI, the Snake Eating Its Own Tail

https://www.ybrikman.com/blog/2026/01/21/gen-ai-snake-eating-its-own-tail/

7 months ago

EU inc: a new European company structure

https://ec.europa.eu/commission/presscorner/detail/da/speech_26_150

7 months ago

A simulation where life unfolds in real time

https://soupof.life

7 months ago

EU chief says EU should abandon caution after Bessent calls Denmark 'irrelevant'

https://www.theguardian.com/world/live/2026/jan/21/europe-donald-trump-davos-speech-greenland-denmark-latest-updates

7 months ago

Flexible use of a multi-purpose tool by a cow

https://doi.org/10.1016/j.cub.2025.11.059

7 months ago

Slouching Towards Bethlehem – Joan Didion (1967)

https://www.saturdayeveningpost.com/2017/06/didion/

7 months ago

Blade Runner Costume Design (2020)

https://costumedesignarchive.blogspot.com/2020/12/blade-runner-1982.html

7 months ago

Hate is a strong word, but I don't like Windows 11

https://blog.urara.pl/hate-is-a-strong-word-but-i-really-really-really-don%27t-like-windows-11

7 months ago

How are you automating your coding work?

https://news.ycombinator.com/item?id=46710108

7 months ago

Find 'Abbey Road when type 'Beatles abbey rd': Fuzzy/Semantic search in Postgres

https://rendiment.io/postgresql/2026/01/21/pgtrgm-pgvector-music.html

7 months ago

Tell HN: Amazon has deactivated my seller account. No idea how to move forward

https://news.ycombinator.com/item?id=46709409

7 months ago

Show HN: S2-lite, an open source Stream Store

https://github.com/s2-streamstore/s2

7 months ago

Three types of LLM workloads and how to serve them

https://modal.com/llm-almanac/workloads

7 months ago

Belarus begins a death penalty purge of radio amateurs

https://steanlab.medium.com/mayday-389f5713fee4

7 months ago

OpenFlexure Microscope

https://openflexure.org/projects/microscope/

7 months ago

Challenges in Join Optimization

https://www.starrocks.io/blog/inside-starrocks-why-joins-are-faster-than-youd-expect

7 months ago