Top Hacker News Stories – April 4, 2026

  1. 1.
    Emotion concepts and their function in a large language model
    Emotion concepts and their function in a large language model (anthropic.com)
  2. 2.
    Scientists are working on "everything vaccines" (economist.com)
  3. 3.
    It's open season for refusing AI
    It's open season for refusing AI (bloodinthemachine.com)
  4. 4.
    Uber engineer alleges hostile 'boys club' culture, firing after cancer leave
    Uber engineer alleges hostile 'boys club' culture, firing after cancer leave (archive.org)
  5. 5.
    EU cyber agency attributes major data breach to TeamPCP hacking group
    EU cyber agency attributes major data breach to TeamPCP hacking group (therecord.media)
  6. 6.
    Donald Knuth: Open Letter to Condoleezza Rice (2002) (www-cs-faculty.stanford.edu)
  7. 7.
    AdGuard ad trackers What ad-based surveillance does to your traffic
    AdGuard ad trackers What ad-based surveillance does to your traffic (adguard.com)
  8. 8.
    Trump fires Pam Bondi as US Attorney General (reuters.com)
  9. 9.
    Jungle old school drum and bass radio
    Jungle old school drum and bass radio (radio.aklein.studio)
  10. 10.
    Pale Blue Dot
    Pale Blue Dot (en.wikipedia.org)
  11. 11.
    Show HN: Cursor Cmd+K like command generator for all terminals
    Show HN: Cursor Cmd+K like command generator for all terminals (github.com)
  12. 12.
    Show HN: Design to Code with good performance (absl.design)
  13. 13.
    Archaeologists discover wreck of Danish warship sunk by Nelson 225 years ago
    Archaeologists discover wreck of Danish warship sunk by Nelson 225 years ago (theguardian.com)
  14. 14.
    How to take down a US F-35 over Iran? Chinese engineer's prophetic tutorial
    How to take down a US F-35 over Iran? Chinese engineer's prophetic tutorial (scmp.com)
  15. 15.
    OpenClaw gives users yet another reason to be freaked out about security
    OpenClaw gives users yet another reason to be freaked out about security (arstechnica.com)
  16. 16.
    Mary Jo Foley: What the heck is going on with Microsoft lately?
    Mary Jo Foley: What the heck is going on with Microsoft lately? (geekwire.com)
  17. 17.
    Mcpx: a Rust proxy that catches MCP schema changes and tool poisoning at runtime
    Mcpx: a Rust proxy that catches MCP schema changes and tool poisoning at runtime (github.com)
  18. 18.
    How to Evaluate Claude Skill Output Quality for Prompt-to-SQL Scenarios
    How to Evaluate Claude Skill Output Quality for Prompt-to-SQL Scenarios (dekart.xyz)
  19. 19.
    No luck for Broadcom as Netflix and Quinn Emanuel succeed in nullity claim
    No luck for Broadcom as Netflix and Quinn Emanuel succeed in nullity claim (juve-patent.com)
  20. 20.
    Thoughts on AI and Research [pdf] (economics.mit.edu)
  21. 21.
    Show HN: HyprMac – I missed Hyprland after switching to Mac, so I built it
    Show HN: HyprMac – I missed Hyprland after switching to Mac, so I built it (github.com)
  22. 22.
    Ask HN: Why still embed heavy 3rd-party iFrames for simple social proof? (news.ycombinator.com)
  23. 23.
    Show HN: AI Dev Board – Job Board for AI Developers with a Full REST API (aidevboard.com)
  24. 24.
    Video Friday: Digit Learns to Dance
    Video Friday: Digit Learns to Dance (spectrum.ieee.org)
  25. 25.
    Vibe coded a design tool for a client handover as a non-technical founder (ugh.design)
  26. 26.
    ¡Haciendo Historia Celebrating PyCon US's First-Ever Spanish-Language Keynote (pycon.blogspot.com)
  27. 27.
    Show HN: RemembrallMCP – code dependency graph for agents and memory
    Show HN: RemembrallMCP – code dependency graph for agents and memory (github.com)
  28. 28.
    GitHub Watch (rohanadwankar.github.io)
  29. 29.
    The Web Is an Antitrust Wedge (infrequently.org)
  30. 30.
    100 Years of the Iron Ring
    100 Years of the Iron Ring (engineerscanada.ca)