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Self-hosted AI agent that builds internal apps on your own data

https://www.youtube.com/watch?v=FNgjuvw2BmU
1•davletdz•1m ago•0 comments

Meta's New Muse AI App Tops Charts, Draws Strong Early Reviews

https://www.bloomberg.com/news/articles/2026-09-21/meta-s-new-muse-ai-app-tops-charts-draws-stron...
1•vipshek•2m ago•0 comments

The Recursive Manifest Compiler: A Traceable Symbolic Architecture

https://www.academia.edu/175953896/The_Recursive_Manifest_Compiler
1•nicbogaert•5m ago•0 comments

We Built a Lip-Reading Creeperbot [video]

https://www.youtube.com/watch?v=Ks5Dzbt6EVI?t=569
1•pilingual•6m ago•0 comments

Patches Posted with Aim to Mainline Linux Kernel Support for the Amazon Kindle 4

https://www.phoronix.com/news/Amazon-Kindle-4-Linux-Patches
2•rbanffy•7m ago•0 comments

Googlebooks launch October 4 starting at $899

https://arstechnica.com/gadgets/2026/09/googlebook-laptops-launch-october-4-starting-at-899-preor...
1•cdesai•9m ago•1 comments

Show HN: A website that tracks US food prices every day

https://www.kadoa.com/food-prices
3•hubraumhugo•9m ago•0 comments

AI coding has made CI a bottleneck, so we reworked ours to keep up

https://linear.app/now/ci-bottleneck-reworked
2•julian_digital•10m ago•0 comments

Show HN: Two unnecessary playgrounds – C# and ZX Spectrum in the browser

2•codeguppy•11m ago•0 comments

Plan a multi-city trip without choosing a destination

https://uwillfly.net/pl
1•privacyzvarych•11m ago•0 comments

Show HN: NEXO, a daily diagnosis game scored on the ICD-10 tree

https://nexo.wiki.br/en
1•nexoapp•12m ago•0 comments

Pakistan Tells Hospitals to Clear Bed Space for "Mass Casualty Incident"

https://www.dropsitenews.com/p/pakistan-military-protest-imran-khan-sisters-detained-hospitals-beds
2•Georgelemental•13m ago•0 comments

The Advisory Group on Mathematics and Artificial Intelligence

https://terrytao.wordpress.com/2026/09/21/advisory-group-on-mathematics-and-artificial-intelligence/
4•digital55•16m ago•0 comments

Swarm Scaling

https://www.tobyord.com/writing/swarm-scaling
2•rdslw•16m ago•0 comments

Microsoft patents system to freeze games and inject ads during downtimes

https://www.tomshardware.com/video-games/microsoft-patents-system-to-freeze-games-and-inject-ads-...
5•ricobecks•17m ago•2 comments

Show HN: Grid flex rhymes with derivatives trading: an observation

https://www.academia.edu/2998-3665/3/3/10.20935/AcadEnergy8514
2•DamonHD•17m ago•0 comments

Wall Street Is Growing Skeptical of the Data Center Boom

https://www.nytimes.com/2026/09/21/business/ai-data-center-ipos.html
6•mikhael•19m ago•0 comments

HHS Seeks Public Input on Electromagnetic Fields and Wireless Radiation

https://www.hhs.gov/press-room/hhs-seeks-public-input-electromagnetic-fields-wireless-radiation.html
2•XnoiVeX•19m ago•0 comments

The Steam Deck Is Being Used to Test Mars Rovers [video]

https://www.youtube.com/watch?v=IJSO-BL3pEU
2•HelloUsername•19m ago•0 comments

The NASA/ESA Mars Sample Return mission has been canceled

https://www.science.org/content/article/nasa-s-mars-sample-return-mission-dead
3•Muhammad523•19m ago•0 comments

Show HN: VernLLM – LLM fallback, no gateway

https://vernllm.dev/
2•Buddo•20m ago•0 comments

B.C. government to sue OpenAI after Tumbler Ridge mass shooting

https://www.cbc.ca/news/canada/british-columbia/bc-government-announce-update-openai-legal-action...
4•dagmx•23m ago•0 comments

Enabling teachers to create learning interactives with generative UI

https://research.google/blog/the-future-of-practice-enabling-teachers-to-create-learning-interact...
1•raahelb•23m ago•0 comments

Is iPhone 18 Pro Max camera really stands out? Keynote was sharper for sure

https://twitter.com/iHarnoorSingh/status/2101129453418295507
1•iharnoor•24m ago•0 comments

V7 gives AI agents institutional memory

https://openai.com/index/v7/
2•rdslw•24m ago•0 comments

Woven Matter v0.2.0 adds tooling for deeper workspace integration

https://github.com/wovenmatter/wovenmatter/releases/tag/v0.2.0
1•trey131•24m ago•1 comments

A scrollable feed of scientific papers

https://papertok.app/feed
3•jslakro•25m ago•0 comments

Show HN: Factlabel: catches AI agents lying about the data they're reporting on

https://github.com/generallymatthew/factlabel
1•generallymatt9•26m ago•0 comments

Bugs that broke driving: Machine Learning edition

https://blog.comma.ai/ml-bugs/
1•LorenDB•26m ago•0 comments

We Are Simulating Humanity

https://www.null0.ai
2•amaarc•27m ago•0 comments
Open in hackernews

US halts flights at busy East Coast airports, says fiber line cut

https://www.reuters.com/world/us/faa-halts-some-us-east-coast-flights-due-communication-issues-2026-09-21/
58•allanbreyes•51m ago

Comments

sc68cal•41m ago
There is also a new ATC system being rolled out, as early as today

https://www.airwaysmag.com/new-post/faa-smart-first-deployme...

whatever1•28m ago
I suspect it is vibe coded. Contract won in June. Deploying in September.

Good luck to all of us.

macintux•6m ago
Deploying first to DC? Yeah, that’ll end well.
quickthrowman•39m ago
It has been conjectured that the easiest way to locate a buried fiber optic cable is to start digging.

(The actual easiest method is to install the conduit or direct burial cable with tracer wire)

dboreham•24m ago
Local people know where they are because once upon a time a D8 drove through pulling a big orange spool of fiber conduit and passers by chatted about how another fiber was going in. Also around here the contractors seeded the disturbed ground with a wildflower mix (presumably to discourage weeds) so you can also look for straps of wildflowers.

And of course there are marker posts that say "buried fiber optic cable do not dig".

atonse•38m ago
I don't quite understand this sort of thing happening. Wasn't the whole point of the internet to be a self-healing network where we route around severed cables, etc?

Or is it that these ATC networks are their own air-gapped network with less redundancy? That just doesn't add up. Or maybe there was only one line going to the ATC, with no multiple "ISPs" like a datacenter would have?

bri3d•26m ago
* Yes, TRACON have their own dedicated links. You can look into ASTERIX and STARS to learn some of the cursed ways the data processing and dataflow work.

* There is supposed to be a primary and a secondary link, in this case the primary failed and the fail-over also failed. It's unclear from the reporting if they were damaged in the same incident or if the failover was not tested or monitored adequately.

The Philadelphia TRACON site has been notoriously unreliable and was supposedly improved in 2025, it's also unclear if these issue actually could stem from that implementation.

wrs•17m ago
I’ve had enough double-redundant links fail - and I mean pretty thoroughly double-redundant, different provider, different media, different physical path - that I’m quite surprised something like the air traffic control system only has two links.
readthenotes1•16m ago
Do you want air traffic control to be on the general internet?

That seems like an extremely foolhardy thing to do.

ssl-3•10m ago
As a tertiary backup: Yeah, maybe I do want that.

It seems like it would present a less-chaotic solution than that provided by having no data communications at all.

cube00•33m ago
> When it went to flip into the backup, we discovered that the backup fiber had a break

Pretty grim that a life critical system wasn't designed to report that the backup fibre was unserviceable until they attempted to switch over to it.

I wonder how long it was down? Days, weeks, months?

readthenotes1•31m ago
A lot of people don't check their backups until they need to restore.

A lot of people are incompetent.

thewebguyd•23m ago
A backup without a restore test isn't a backup at all
toast0•20m ago
Sometimes your multiple fiber paths end up in the same bundle, severed by the same backhoe. It's always a fun day when that becomes apparent.
koolba•15m ago
Put all your backups in one basket, and then pray that nobody crushes the basket.
krashidov•12m ago
Could this be sabotage?
kqgnkqgn•
tomasphan•31m ago
ATC seems like a great place to have redundancy with a starlink dish on the roof.
dboreham•22m ago
So much for all that work to ensure path diversity. Perhaps it got deleted by Elon's goons grepping for "diversity".
dctoedt•10m ago
[delayed]
cyanydeez•4m ago
So of course if the FAA is going to put AI into the watchtowers, they're obviously going to use local AI and not rely on some random Amazon cloud infra in some middle eastern country.

right. of course, no ones going to cut corners on the safe use of AI and secure infrastructure in this administration.

kqgnkqgn•4m ago
You certainly don’t need to run this over public Internet to get resiliency over multiple paths.
5m ago
That seems more than merely plausible given current tensions and the location/timing connection with NYC and UN.