Hacker News top 30 - 2025-09-21
- Ultrasonic Chef’s Knife seattleultrasonics.com - 409 comments 516 points
- Microsoft has urged its employees on H-1B and H-4 visas to return immediately timesofindia.indiatimes.com - 587 comments 380 points
- Git: Introduce Rust and announce it will become mandatory in the build system lore.kernel.org - 292 comments 309 points
- $2 WeAct Display FS adds a 0.96-inch USB information display to your computer www.cnx-software.com - 107 comments 238 points
- FLX1s phone is launched furilabs.com - 146 comments 217 points
- Are touchscreens in cars dangerous? www.economist.com - 197 comments 208 points
- Cormac McCarthy’s tips on how to write a science paper - 2019 - pdf gwern.net - 81 comments 204 points
- Designing NotebookLM jasonspielman.com - 68 comments 204 points
- Britain jumps into bed with Palantir in £1.5B defense pact www.theregister.com - 129 comments 196 points
- Amazon to end commingling after years of complaints from brands and sellers www.modernretail.co - 69 comments 195 points
- Images over DNS dgl.cx - 45 comments 170 points
- IG Nobel Prize Winners 2025 improbable.com - 45 comments 152 points
- PYREX vs. pyrex: What’s the difference? www.corning.com - 101 comments 131 points
- Is Zig’s new writer unsafe? www.openmymind.net - 135 comments 130 points
- The LLM Lobotomy? learn.microsoft.com - 55 comments 124 points
- Microsoft memo advises H1B employees to return immediately if currently abroad x.com - 165 comments 120 points
- Vapor chamber tech keeps iPhone 17 Pro cool spectrum.ieee.org - 231 comments 106 points
- Systemd can be a cause of restrictions on daemons utcc.utoronto.ca - 114 comments 105 points
- China’s 200M gig workers are a warning for the world www.economist.com - 197 comments 94 points
- Invasive Israeli-founded bloatware is harvesting data from Samsung users in WANA smex.org - 26 comments 88 points
- For comedians around the world, the laughs often end as democracy fades www.theguardian.com - 68 comments 86 points
- Living microbial cement supercapacitors with reactivatable energy storage www.cell.com - 39 comments 85 points
- Parents outraged as Meta uses photos of schoolgirls in ads targeting man www.theguardian.com - 18 comments 83 points
- Why do some gamers invert their controls? www.theguardian.com - 124 comments 82 points
- Philips announces digital pathology scanner with native DICOM JPEG XL output www.philips.com - 41 comments 80 points
- The dawn of the post-literate society – and the end of civilisation jmarriott.substack.com - 118 comments 79 points
- Show HN: FocusStream – Focused, distraction-free YouTube for learners focusstream.media - 40 comments 75 points
- New H-1B visa fee will not apply to existing holders, official says www.axios.com - 72 comments 68 points
- Tariffs make it harder to justify US investments, automakers and suppliers warn www.autonews.com - 17 comments 68 points
- TV Time Machine: A Raspberry Pi That Plays Random 90s TV quarters.captaintouch.com - 39 comments 66 points
September 21, 2025 ∙