Hackernews posts about W21

W21 is a year class in Y Combinator's (YC) accelerator program, indicating that these are startups that were part of the Winter 2021 batch.

1. Fathom (YC W21) is being acquired by Superhuman (www.fathom.ai)
   1 points by jorts 3 days ago | 1 comments
2. Delve (YC W24) accused of misleading customers with 'fake compliance' (finance.yahoo.com)
   2 points by mgh2 14 days ago | 3 comments
3. AI boosted homework scores, then exam scores dropped: study (www.economist.com)
   384 points by dash2 29 days ago | 383 comments
4. Launch HN: RonanRX (YC S26) – Personalized Peptides and GLP-1s
   119 points by lloydarmbrust 15 days ago | 82 comments
5. Launch HN: machine0 (YC S26) – Persistent CPU and GPU VMs from the CLI (machine0.io)
   83 points by bwm 30 days ago | 44 comments
6. Show HN: Give your AI agent on-screen guides that show users where to click
   19 points by pancomplex 8 days ago | 8 comments
7. Notes on Markup Rendering ">(1)
   1 points by w2tdnrla911 6 days ago | discuss
8. 216M Spy TVs – The LG Smart TV Problem [video] (www.youtube.com)
   939 points by treve 11 days ago | 1015 comments
9. Three sites made 215,128 “best software” pages for AI. Perplexity cites them (trellner.com)
   519 points by jakobgreenfeld 15 days ago | 251 comments
10. DaVinci Resolve 21.1 (www.blackmagicdesign.com)
    439 points by tosh 9 days ago | 216 comments
11. Google AI Mode shows same products 21.6% more expensive than traditional search (productrise.app)
    403 points by DeepLogin 13 days ago | 76 comments
12. OpenAI: GPT 5.6 Sol price reduction (until at least Nov 21) (developers.openai.com)
    338 points by tosh 24 days ago | 344 comments
13. Music Theory for the 21st-Century Classroom (musictheory.pugetsound.edu)
    305 points by aanet 7 days ago | 151 comments
14. Fedora 45 beta drags the Linux console into the 21st century (www.theregister.com)
    11 points by DemiGuru about 24 hours ago | 2 comments
15. Show HN: Dashi – a 214KB Chrome new tab dashboard with no servers or analytics (trydashi.app)
    9 points by trydashi 24 days ago | 2 comments
16. Young adults under 21 traded $5B on Kalshi this year (www.cnn.com)
    7 points by 01-_- 20 days ago | 2 comments
17. British Groups Are Shaping US Age Verification Laws in 21 US States (www.gadgetreview.com)
    7 points by robotnikman 27 days ago | 1 comments
18. British Groups Push Age Verification Bills in 21 US States (reclaimthenet.org)
    5 points by ironyman 28 days ago | discuss
19. Show HN: YOLO FPS-per-dollar numbers for edge AI boards ($75-$215) (github.com)
    4 points by chorylee about 24 hours ago | discuss
20. Modern Java: An In-Depth Guide from Java 8 to Java 21 (medium.com)
    4 points by ejboy 16 days ago | discuss
21. Website behind widely shared fake election polls run by 21-year-old (www.theguardian.com)
    4 points by cdrnsf 27 days ago | discuss
22. Scientists discover 210M-year-old dinosaur in Zimbabwe (phys.org)
    3 points by bushwart 15 days ago | discuss
23. Book Review: A Residence of 21 Years in the Sandwich Islands (www.astralcodexten.com)
    3 points by paulpauper 24 days ago | discuss
24. 21-Year-Old Reveals Himself as Author of Widely Reported Fake Election Polls (www.mediaite.com)
    3 points by greenchair 26 days ago | discuss
25. Clearlake-Backed Software Maker Ivanti's Earnings Sink 21% (www.bloomberg.com)
    2 points by petethomas 24 days ago | 1 comments
26. Frasco v. Flo Health 3:21-cv-00757-JD Wiretap liability, Meta Platforms [pdf] (www.govinfo.gov)
    2 points by 1vuio0pswjnm7 about 5 hours ago | discuss
27. Developer builds 3D code visualizer that takes 21GB RAM shows 2.5M LOC at 120fps (www.tomshardware.com)
    2 points by thunderbong about 8 hours ago | discuss
28. My Complete Agentic Coding Setup Tech Stack Feb 21 2026 – Updated Jun 29 2026 (hboon.com)
    2 points by Bluestein 3 days ago | discuss
29. Kache v0.21:caching C/C++ links,nvcc objects,and the Clang-CL flags Firefox uses (github.com)
    2 points by ainhoaa 3 days ago | discuss
30. Where the 21st Century Was Invented – The National Museum of Computing (Tnmoc) (retrogamecoders.com)
    2 points by ibobev 8 days ago | discuss