top 50% hacker news stories for 2026-01-20

Danish pension fund divesting US Treasuries

https://www.reuters.com/business/danish-pension-fund-divest-its-us-treasuries-2026-01-20/

7 months ago

Google confirms 'high-friction' sideloading flow is coming to Android

https://www.androidauthority.com/google-sideloading-android-high-friction-process-3633468/

7 months ago

De-dollarization: Is the US dollar losing its dominance?

https://www.jpmorgan.com/insights/global-research/currencies/de-dollarization

7 months ago

I'm Addicted to Being Useful

https://www.seangoedecke.com/addicted-to-being-useful/

7 months ago

The 26,000-Year Astronomical Monument Hidden in Plain Sight

https://longnow.org/ideas/the-26000-year-astronomical-monument-hidden-in-plain-sight/

7 months ago

The Overcomplexity of the Shadcn Radio Button

https://paulmakeswebsites.com/writing/shadcn-radio-button/

7 months ago

Porsche Sold More Electrified Cars in Europe in 2025 Than Pure Gas-Powered Cars

https://newsroom.porsche.com/en/2026/company/porsche-deliveries-2025-41516.html

7 months ago

AI Is a Horse (2024)

https://kconner.com/2024/08/02/ai-is-a-horse.html

7 months ago

Ask HN: Do you have any evidence that agentic coding works?

https://news.ycombinator.com/item?id=46691243

7 months ago

California is free of drought for the first time in 25 years

https://www.latimes.com/california/story/2026-01-09/california-has-no-areas-of-dryness-first-time-in-25-years

7 months ago

Nvidia Stock Crash Prediction

https://entropicthoughts.com/nvidia-stock-crash-prediction

7 months ago

Unconventional PostgreSQL Optimizations

https://hakibenita.com/postgresql-unconventional-optimizations

7 months ago

The Hidden Engineering of Runways

https://practical.engineering/blog/2026/1/20/the-hidden-engineering-of-runways

7 months ago

Nova Launcher Added Facebook and Google Ads Tracking

https://lemdro.id/post/lemdro.id/35049920

7 months ago

When employees feel slighted, they work less

https://penntoday.upenn.edu/news/penn-wharton-when-employees-feel-slighted-they-work-less

7 months ago

Running Claude Code dangerously (safely)

https://blog.emilburzo.com/2026/01/running-claude-code-dangerously-safely/

7 months ago

IPv6 is not insecure because it lacks a NAT

https://www.johnmaguire.me/blog/ipv6-is-not-insecure-because-it-lacks-nat/

7 months ago

Internet Archive's Storage

https://blog.dshr.org/2026/01/internet-archives-storage.html

7 months ago

Meta's Legal Team Abandoned Its Ethical Duties

https://www.afterbabel.com/p/how-metas-lawyers-perfected-the-playbook

7 months ago

The challenges of soft delete

https://atlas9.dev/blog/soft-delete.html

7 months ago

The Unix Pipe Card Game

https://punkx.org/unix-pipe-game/

7 months ago

'The old order is not coming back,' Carney says in provocative speech at Davos

https://www.cbc.ca/news/politics/carney-davos-speech-9.7052725

7 months ago

Giving University Exams in the Age of Chatbots

https://ploum.net/2026-01-19-exam-with-chatbots.html

7 months ago

Instabridge has acquired Nova Launcher

https://novalauncher.com/nova-is-here-to-stay

7 months ago

Linux kernel framework for PCIe device emulation, in userspace

https://github.com/cakehonolulu/pciem

7 months ago

Show HN: Coi – A language that compiles to WASM, beats React/Vue

https://news.ycombinator.com/item?id=46696283

7 months ago

Show HN: Mastra 1.0, open-source JavaScript agent framework from the Gatsby devs

https://github.com/mastra-ai/mastra

7 months ago

Without benchmarking LLMs, you're likely overpaying 5-10x

https://karllorey.com/posts/without-benchmarking-llms-youre-overpaying

7 months ago

Which AI Lies Best? LLMs play a 1950s betrayal game by John Nash

https://so-long-sucker.vercel.app/

7 months ago

IP Addresses Through 2025

https://www.potaroo.net/ispcol/2026-01/addr2025.html

7 months ago

Claude Chill: Fix Claude Code's Flickering in Terminal

https://github.com/davidbeesley/claude-chill

7 months ago

I built a 2x faster lexer, then discovered I/O was the real bottleneck

https://modulovalue.com/blog/syscall-overhead-tar-gz-io-performance/

7 months ago

Text Is King

https://www.experimental-history.com/p/text-is-king

7 months ago

Scaling long-running autonomous coding

https://simonwillison.net/2026/Jan/19/scaling-long-running-autonomous-coding/

7 months ago

'This is sell America' – US dollar tumbles as globe flees US assets

https://www.cnbc.com/2026/01/20/sell-america-trade-dollar-treasury-gold-us-trump-greenland.html

7 months ago

Velox: A Port of Tauri to Swift by Miguel de Icaza

https://github.com/velox-apps/velox

7 months ago

Snow Simulation Toy

https://potch.me/2026/snow-simulation-toy.html

7 months ago

Stewart Brand – Maintenance: Of Everything, Part One

https://press.stripe.com/maintenance-part-one

7 months ago

F-16 Falcon Strike, modern combat flight SIM for Atari XL/XE

https://webchrono.pl/F16FalconStrike/index.html

7 months ago

Inside the secret world of Japanese snack bars

https://www.bbc.com/travel/article/20260116-inside-the-secret-world-of-japanese-snack-bars

7 months ago

Guix for Development

https://dthompson.us/posts/guix-for-development.html

7 months ago

Show HN: Agent Skills Leaderboard

https://skills.sh

7 months ago

Extracting verified C++ from the Rocq theorem prover at Bloomberg

https://bloomberg.github.io/crane/

7 months ago

OpenAI is rolling out age prediction

https://openai.com/index/our-approach-to-age-prediction/

7 months ago

X algorithm has been open sourced

https://github.com/xai-org/x-algorithm

7 months ago

Kraków, Poland in top 5 worst air quality worldwide

https://www.iqair.com/world-air-quality-ranking

7 months ago

Small Kafka: Tansu and SQLite on a free t3.micro

https://blog.tansu.io/articles/broker-aws-free-tier

7 months ago

Electricity use of AI coding agents

https://www.simonpcouch.com/blog/2026-01-20-cc-impact/

7 months ago

Trump administration concedes DOGE team may have misused Social Security data

https://www.politico.com/news/2026/01/20/trump-musk-doge-social-security-00737245

7 months ago

Go 1.26 Interactive Tour

https://antonz.org/go-1-26/

7 months ago

Typography on Pencils (2023)

https://www.presentandcorrect.com/blogs/blog/typography-on-pencils-1-5

7 months ago

Google co-founder reveals that "many" of the new hires do not have a degree

https://www.yahoo.com/news/articles/google-cofounder-reveals-tons-recent-231500103.html

7 months ago

Immigration Agencies Are Openly Defying Federal Courts

https://lpeproject.org/blog/immigration-agencies-are-openly-defying-federal-courts/

7 months ago

The Zen of Reticulum

https://github.com/markqvist/Reticulum/blob/master/Zen%20of%20Reticulum.md

7 months ago

Show HN: Ocrbase – pdf → .md/.json document OCR and structured extraction API

https://github.com/majcheradam/ocrbase

7 months ago

Ask HN: Burned out from tech, what else is there?

https://news.ycombinator.com/item?id=46695821

7 months ago

x86 prefixes and escape opcodes flowchart

https://soc.me/interfaces/x86-prefixes-and-escape-opcodes-flowchart.html

7 months ago

Show HN: Artificial Ivy in the Browser

https://da.nmcardle.com/grow

7 months ago

Majority of CEOs report zero payoff from AI splurge

https://www.theregister.com/2026/01/20/pwc_ai_ceo_survey/

7 months ago

The secret medieval tunnels that we still don't understand

https://weirdmedievalguys.substack.com/p/the-secret-medieval-tunnels-that

7 months ago

Kiss Launcher – fast launcher for Android

https://kisslauncher.com/

7 months ago

Europe could 'weaponize' $10T of US assets over Greenland

https://www.bloomberg.com/news/articles/2026-01-19/-weaponizing-10-trillion-of-us-assets-is-tough-ask-for-europe

7 months ago

Is the Constitution Broken

https://www.harvardmagazine.com/social-sciences/is-the-constitution-broken

7 months ago

The Rebirth of Pennsylvania's Infamous Burning Town

https://www.atlasobscura.com/articles/centralia-pennsylvania-rebirth

7 months ago

Steam "Offline" status leaks exact login timestamps (Valve: Won't Fix)

https://xmrcat.org/steam-invisibility-bypass

7 months ago

Show HN: IP over Avian Carriers with Quality of Service

https://www.rfc-editor.org/rfc/rfc2549.html

7 months ago

Show HN: Fence – Sandbox CLI commands with network/filesystem restrictions

https://github.com/Use-Tusk/fence

7 months ago

Chatbot Psychosis

https://en.wikipedia.org/wiki/Chatbot_psychosis

7 months ago

A static site generator written in POSIX shell

https://aashvik.com/posts/shell-ssg/

7 months ago

Model Market Fit

https://www.nicolasbustamante.com/p/model-market-fit

7 months ago

Cloudflare zero-day: Accessing any host globally

https://fearsoff.org/research/cloudflare-acme

7 months ago