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Article URL: https://nullprogram.com/blog/2026/09/20/ Comments URL: https://news.ycombinator.com/item?id=49776796 Points: 6 # Comments: 1

Article URL: https://gregorygundersen.com/blog/2026/09/20/hierarchy-of-money/ Comments URL: https://news.ycombinator.com/item?id=49779253 Points: 74 # Comments: 27

Article URL: https://deadneurons.substack.com/p/frontier-labs-are-selling-garbage Comments URL: https://news.ycombinator.com/item?id=49779432 Points: 126 # Comments: 55

Article URL: https://github.com/lfarroco/ogre-battle-64-recomp Comments URL: https://news.ycombinator.com/item?id=49780022 Points: 16 # Comments: 6

Article URL: https://seldo.com/posts/nobody-pays-for-open-source-we-can-force-them-to/ Comments URL: https://news.ycombinator.com/item?id=49780064 Points: 102 # Comments: 68

Article URL: https://truthout.org/articles/warren-introduces-bill-to-ban-private-equity-from-owning-medical-practices/ Comments URL: https://news.ycombinator.com/item?id=49780630 Points: 104 # Comments: 57

Article URL: https://agentexecutor.io Comments URL: https://news.ycombinator.com/item?id=49780797 Points: 68 # Comments: 20

Article URL: https://libroot.org/posts/what-happened-to-the-snowden-archive Comments URL: https://news.ycombinator.com/item?id=49780820 Points: 60 # Comments: 11

On an H100, tokens per watt drops 12x between 4K and 64K context. Agents live at the fat end of that curve. The fix comes from semiconductor architecture.

9/20/2026: Trending stories on Hackernoon today!

Patch code that never had a test written for it, and every quick fix becomes tomorrow's outage

Pieter Levels says YC's batch proves software is mostly dead. But a harness is software. A two-question test for what AI will absorb, and what it can't.

AI agents are getting harder to control. From swarms exploiting vulnerabilities to real-world cyberattacks, the security challenge is rapidly evolving.

After it was announced that Sony was dropping Hideo Kojima's Physint, and that instead the Metal Gear Solid creator's latest title would be coming to Xbox, there were a flurry of rumors about the falling out. Bloomberg reported that the decision was driven by a number of factors, including missed deadlines, budget and profitability concerns, […]

The man who may stand to make the most money from the AI boom seems to think he knows better than anyone else, including researchers who have studied and worked on AI for decades. In an interview with CBS Sunday Morning, he claimed there was a "0% chance" of AI being the end of the […]

Welcome back to TechCrunch Mobility, your hub for the future of transportation and now, more than ever, the role AI is playing in it. To get this in your inbox, sign up here for free — just click TechCrunch Mobility!

The new legislation adds teeth to disclosure requirements for online influencers who are paid to post about politics.

ScrollEd turns textbooks into a scrollable, Instagram-like feed with video, audio, and quizzes. The Palo Alto startup, founded by student co-founders (and spouses) Utsav Gupta and Rebecca Neff, pitches at TechCrunch Disrupt.

Vocci's lightweight ring costs $249, and might pose some privacy questions

On Equity, we debated whether Ai executives are serious about wanting to slow down.

Many of The Boring Company's announced project have not materialized.

Originally published on angeo.dev . Checked against llmstxt.org v2, revised 10 August 2026, and against the published request data as of September 2026. We shipped a validator that could certify a broken llms.txt file as valid. The bug was simple. The spec recommends a short summary in a blockquote under the title. Our checker looked for a line starting with > . It never looked at what came after it. A store with no meta description produced a bare > and nothing else, and...

I built NiceTryGPT, an open-source project for CTF authors who want to make cheap LLM shortcuts less effective without making challenges harder or more annoying for humans. The idea is simple: «Increase uncertainty, not complexity.» NiceTryGPT keeps the same vulnerability and learning objective, but removes obvious patterns that can turn a challenge into a one-shot LLM answer. Current examples include IDOR, path traversal and SQL injection. I'm not trying to make CTFs “AI-p...

Cisco Secure Firewall Management Center sftunnel Flaw (CVE-2026-20324) Explained Overview CVE-2026-20324 is a critical vulnerability in the sftunnel component of Cisco Secure Firewall Management Center (FMC). Cisco rates the flaw at CVSS 9.9. Successful exploitation lets an unauthenticated remote attacker execute arbitrary code with root privileges on the affected system. The issue was disclosed as part of a September 16, 2026 wave of fixes for Cisco Secure Firewall products....

There are already several good in-memory cache libraries for Go. So when I started building pacecache , the obvious question was: Why another one? I wasn't trying to build a cache that would be universally better than every existing alternative. Cache design is a collection of trade-offs: lock contention, eviction quality, capacity utilization, expiration, memory overhead, and implementation complexity all pull in different directions. What I wanted was a relatively small, gener...

AI agents cross a line that ordinary chat systems do not: they connect probabilistic decisions to real actions. An agent that can read mail, update a record, run a tool, or spend money is part of your production control plane. Prompt quality matters, but prompts are not a security boundary. The controls below should exist before an agent receives production access. 1. Separate read, recommend, and execute Do not treat "access" as a single permission. Use three distinct stag...