top 20 hacker news stories for 2026-01-21

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

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

2 weeks ago

765 upvotes – 726 comments

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

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

1 week ago

709 upvotes – 509 comments

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

https://github.com/ChartGPU/ChartGPU

2 weeks ago

667 upvotes – 213 comments

Anthropic's original take home assignment open sourced

https://github.com/anthropics/original_performance_takehome

2 weeks ago

638 upvotes – 374 comments

Claude's New Constitution

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

2 weeks ago

578 upvotes – 700 comments

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

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

2 weeks ago

573 upvotes – 137 comments

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

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

1 week ago

532 upvotes – 152 comments

Skip Is Now Free and Open Source

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

2 weeks ago

513 upvotes – 224 comments

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

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

2 weeks ago

482 upvotes – 257 comments

Bending Spoons laid off almost everybody at Vimeo yesterday

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

2 weeks ago

470 upvotes – 504 comments

Curl removes bug bounties because of AI slop

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

2 weeks ago

434 upvotes – 264 comments

Linux from Scratch

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

2 weeks ago

413 upvotes – 103 comments

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/

2 weeks ago

340 upvotes – 353 comments

Stanford scientists found a way to regrow cartilage and stop arthritis

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

2 weeks ago

306 upvotes – 96 comments

AI Destroys Institutions

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

2 weeks ago

305 upvotes – 280 comments

SETI Home Is in Hiberation

https://setiathome.berkeley.edu/

2 weeks ago

276 upvotes – 136 comments

Can you slim macOS down?

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

2 weeks ago

263 upvotes – 345 comments

Nested Code Fences in Markdown

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

2 weeks ago

262 upvotes – 80 comments

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

https://rss.social/

2 weeks ago

260 upvotes – 56 comments

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

https://github.com/vitoplantamura/HackerNewsRemovals

2 weeks ago

256 upvotes – 183 comments
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