Replacement.ai(replacement.ai)
870 points by wh313 | 570 comments
Replacement.AI is a satirical landing page for a fictional company claiming humans are no longer necessary and that its AI can replace them more cheaply.
Hacker News on
Stories posted this day, by points. Rank history starts with the October 2026 rebuild.
Doing well in your courses: Andrej's advice for success (2013)(cs.stanford.edu)
603 points by peterkshultz | 181 comments
Andrej Karpathy's 2013 guide offering advice to undergraduate students on doing well in courses, covering sleep, studying habits, and exam preparation.
![Screenshot of youtube.com: A laser pointer at 2B FPS [video]](https://hn.urlbox.com/shots/renders/2025/10/20/41ad08cb-c2b9-4d4f-b687-14f29a0ccefb.jpg)
A laser pointer at 2B FPS [video](youtube.com)
574 points by thunderbong | 97 comments
AlphaPhoenix YouTube video filming a laser pointer beam at 2 billion frames per second to visualize light propagation.
Novo Nordisk's Canadian Mistake(science.org)
399 points by jbm | 211 comments
Derek Lowe's In the Pipeline blog post at Science on Novo Nordisk's mistake in letting its semaglutide patent lapse in Canada, opening the door to generics like Sandoz.
Airliner hit by possible space debris(avbrief.com)
372 points by d_silin | 196 comments
AvBrief news article reporting a United Boeing 737 MAX whose windshield was cracked by a falling object, possibly space debris, at 36,000 feet.
OpenAI researcher announced GPT-5 math breakthrough that never happened(the-decoder.com)
349 points by Topfi | 196 comments
The Decoder article reporting that an OpenAI researcher's claim of a GPT-5 math breakthrough turned out to be false.
Xubuntu.org Might Be Compromised(old.reddit.com)
304 points by kekqqq | 127 comments
Compare Single Board Computers(sbc.compare)
188 points by todsacerdoti | 75 comments
Friendship Begins at Home(3quarksdaily.com)
133 points by herbertl | 62 comments
US Government Uptime Monitor(usa-status.com)
131 points by exr0n | 31 comments
The Accountability Problem(jamesshore.com)
115 points by FrancoisBosun | 48 comments
RFCs: Blueprints of the Internet(ackreq.github.io)
103 points by ackreq | 77 comments
What Happened in 2007?(whathappenedin2007.com)
97 points by AJRF | 52 comments
VisiCalc on the Apple II(stonetools.ghost.io)
89 points by hggh | 40 comments
Websites Are for Humans(marcus-obst.de)
49 points by freediver | 19 comments
Scheme Reports at Fifty(crumbles.blog)
48 points by djwatson24 | 18 comments
