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Hacker News. Daily summary. Top 20 stories.

2026-09-21

ChatGPT now knows what you do on other websites via ad collector (Buchodi's Threat Intel)

OpenAI uses a cross-site cookie to link users' ChatGPT accounts with their browsing activity on advertiser websites.

Thread centers on whether this is standard adtech or uniquely troubling on an AI chat product.

733 pts · 387 comments

AX – Google’s Open Agentic Orchestrator (agentexecutor.io)

Google releases AX, an open-source agentic orchestrator built on Agent Substrate.

Skepticism over Google's track record with open-source support and product quality.

565 pts · 257 comments

What happened to the Snowden archive (libroot.org)

No Snowden archive documents have been published since May 2019.

Desensitization and shifting Overton window blamed for stalled outrage.

549 pts · 380 comments

Pirate Face Rescues LLM Models from Deletion (Pirate Face)

Pirate Face mirrors Hugging Face models as checksum-verified torrents for censorship-resistant distribution.

Torrents are widely endorsed for model distribution, with historical parallels to game and data delivery.

543 pts · 144 comments

Samsung is expected to more than double output of its HBM4 and HBM4E DRAM (Seoul Economic Daily)

Samsung plans to more than double HBM4 and HBM4E output next year.

Two camps: those expecting higher consumer DRAM prices from capacity reallocation, those betting on market correction.

513 pts · 368 comments

Spain Orders Blocks on Archive.today and Its Mirrors (Reclaim The Net: Free Speech, Privacy, Digital Rights)

Spain blocked Archive.today domains without a court ruling, via the Intellectual Property Commission.

Split between those who say archive.today is unreliable or an intelligence operation and those who rely on it for paywalled news.

494 pts · 383 comments

ZuckOff Know when a camera is in the room (zuckoff.app)

ZuckOff is a mobile app that detects nearby camera glasses by listening for their Bluetooth signatures.

Debate on legal risk from Meta and spoofability of Bluetooth signatures.

488 pts · 205 comments

Bill to Ban Private Equity from Owning Medical Practices (Truthout)

Senator Warren introduced a bill to ban private equity from owning medical practices.

Two camps formed: those favoring a ban on PE in essential care, those defending the right to sell to any investor.

459 pts · 327 comments

I am often wrong (Boris Cherny’s Blog)

A product leader describes his six-step iterative problem-solving framework and embracing being wrong.

The thread splits on whether the framework is useful or condescending corporate process.

277 pts · 197 comments

Singapore’s National Library Board offers micropayments to build reading habits (Gadget Review)

Singapore pays people small micropayments to read books via a gamified pilot program.

Thread splits between amusement at the tiny payout and criticism of Singapore's exclusionary public services for foreigners.

266 pts · 120 comments

Grim Fandango Puzzle Document (1996) [pdf] (gameshelf.jmac.org)

Tim Schafer's original puzzle design document for the 1998 adventure game Grim Fandango is shared online.

The thread splits between praising the game's atmosphere and story, while criticizing its clunky controls and frustrating puzzle design.

264 pts · 59 comments

Disney+: New user agreement allows ads before movies in all subscriptions (Consumer Rights Wiki)

Disney+ updated its subscriber agreement to allow ads in all tiers, including those marketed as ad-free, starting in January 2025.

Viewers see this as another example of streaming enshittification, with many considering cancellation or piracy.

251 pts · 172 comments

US Revokes Limits on Power Plants' Climate Pollution (text.hrw.org)

EPA repeals 2024 limits on power plant carbon emissions, gutting climate pollution rules.

The thread splits between critics of the repeal and those pointing to China's coal use as hypocrisy.

248 pts · 258 comments

ZuckOff Is a Free App That Sees Meta Glasses Before They See You (WIRED Middle East)

A free app detects Meta smart glasses via Bluetooth signals to warn of nearby recording.

Two camps formed: those doubting the app's Bluetooth detection method works reliably versus those arguing Meta's LED safeguards are adequate.

245 pts · 29 comments

Why do we need human mathematicians anymore? (What's new)

Human communities of expertise must be preserved as AI creates more oversight jobs than people can fill.

Two camps: those accepting AI-created oversight jobs and those arguing AI will ultimately replace them.

243 pts · 255 comments

Sherline Tools Is Going Out of Business (toolguyd.com)

Sherline Tools, a US manufacturer of precision micro-machining equipment, is shutting down operations by the end of 2026.

Commenters debate Sherline's failure to innovate versus broader market shifts killing small USA manufacturers.

239 pts · 161 comments

AI and the Destruction of the Creative Commons (chesterwisniewski.com)

AI training on public code and content breaks the social contract of open sharing.

Tech's pattern of breaking social contracts under 'disruption' is now hitting AI itself.

231 pts · 275 comments

MCP was always a bad idea? (Maharshi Patel)

MCP is obsolete because modern LLMs can call APIs directly.

Two camps: those who see MCP as a security layer and those who see it as obsolete overhead.

225 pts · 194 comments

RSA-896 (saweis.net)

An Anthropic engineer used Claude to orchestrate GPU-based factoring of RSA-896.

Debate centers on GPU efficiency for factorization and implications for 1024-bit RSA security.

223 pts · 89 comments