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What people in AI, tech and science are talking about today.

22 October 2026 · Top 10

Ranked by how fast each item is picking up attention on X, Hacker News, GitHub and Hugging Face, with a short note on why it matters.

  1. Anthropic previews Claude Duet, a proactive agent app

    Claude Duet surfaces what needs your attention, works on tasks while you're away, and checks with you before acting on your behalf. It's Anthropic's clearest move yet from chat window to always-on assistant.

    Source: X · @claudeai · kuberwastakenLink · Post on X · LinkedIn ·
    ▲▲ +6,054 eng/h43,940 likes · 3,326 reposts
    AI & Agents

  2. OpenAI-backed effort finds critical PHP security flaws

    OpenAI's Patch the Planet coalition used its models to find serious bugs in PHP, which runs an estimated 70% of websites, and shipped a Codex skill to check if your site is affected.

    Source: X · @OpenAI · @OpenAILink · Post on X · LinkedIn ·
    ▲▲ +1,519 eng/h13,850 likes · 2,769 reposts
    Dev Tools

  3. Hermes Agent gets an official Meshy plugin for 3D models

    Hermes can now generate game-ready or printable 3D models through Meshy's MCP server, with models and rigged characters rendering right in the desktop chat.

    Source: X · @NousResearch · @TekniumLink · Post on X · LinkedIn ·
    ▲ +172 eng/h544 likes · 50 reposts
    AI & Agents

  4. Corridor Crew releases its green screen solution for free

    Their AI keying tool gets a major upgrade, with a paid plugin and a free open-source version on GitHub. Useful for anyone doing VFX on a budget.

    Source: YouTube · Corridor Crew · Corridor CrewLink · Post on X · LinkedIn ·
    ▲▲ +49,683 views/h705,240 views · 33,725 ratings
    Gen-Media

  5. Jensen Huang ends GTC Berlin keynote with a Hermes Agent demo

    Nvidia's CEO set up a customised Hermes Agent in a single prompt on stage. An open-source agent from Nous Research getting the keynote finale is a big signal for open agent harnesses.

    Source: X · @NousResearchLink · Post on X · LinkedIn ·
    ▲▲ +907 eng/h5,544 likes · 569 reposts
    AI & Agents

  6. The 1960 paper that predicted doomsday for 13 Nov 2026

    Anton Petrov revisits a 1960 Science paper whose population-growth equation pointed to this November. It's a fun look at why naive extrapolation breaks down.

    Source: YouTube · Anton PetrovLink · Post on X · LinkedIn ·
    ▲ +17,753 views/h145,356 views · 6,092 ratings
    Science

  7. MrBallen: a hurricane that helped solve a crime

    Three strange true stories, starting with a case where rising floodwaters changed the course of an investigation.

    Source: YouTube · MrBallenLink · Post on X · LinkedIn ·
    ▲▲ +25,967 views/h316,492 views · 14,075 ratings
    Mysteries

  8. Why THC doesn't work on some people

    SciShow explains how differences in the body's own endocannabinoid system may stop some people getting high, and what else that system affects.

    Source: YouTube · SciShowLink · Post on X · LinkedIn ·
    ▲ +13,841 views/h182,605 views · 4,109 ratings
    Science

  9. eMudhra's CA keys reportedly cracked in milliseconds

    Scott Helme writes up how keys tied to certificate authority eMudhra could be broken almost instantly. Weak CA keys undermine the trust behind HTTPS certificates.

    Source: Hacker News · discussionLink · Post on X · LinkedIn ·
    ▲▲ +51 pts/h869 points · 415 comments
    Dev Tools

  10. Canary Tokens, free tripwires for intruders

    Canarytokens.org makes decoy files, links and keys that alert you the moment someone opens or uses them. A cheap early-warning system that's back on the HN front page.

    Source: Hacker News · discussionLink · Post on X · LinkedIn ·
    – +13 pts/h142 points · 22 comments
    LLMs

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How this works

Signals today: 37 from X, 12 from Hacker News, 30 from arXiv, 13 from GitHub, 50 from HF Papers, 40 from YouTube. Scores combine how fast an item is picking up attention, how recent it is, and how many places it shows up. Each note is short, factual and links to the original. YouTube comes from public channel feeds of about fifty channels.