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The 26,000-Year Astronomical Monument Hidden in Plain Sight

https://longnow.org/ideas/the-26000-year-astronomical-monument-hidden-in-plain-sight/
217•mkmk•3h ago•42 comments

The Unix Pipe Card Game

https://punkx.org/unix-pipe-game/
137•kykeonaut•4h ago•33 comments

I'm addicted to being useful

https://www.seangoedecke.com/addicted-to-being-useful/
410•swah•10h ago•201 comments

Running Claude Code dangerously (safely)

https://blog.emilburzo.com/2026/01/running-claude-code-dangerously-safely/
238•emilburzo•9h ago•195 comments

Unconventional PostgreSQL Optimizations

https://hakibenita.com/postgresql-unconventional-optimizations
204•haki•7h ago•22 comments

LG UltraFine Evo 6K 32-inch Monitor Review

https://www.wired.com/review/lg-ultrafine-evo-6k-32-inch-monitor/
23•tosh•3d ago•25 comments

Show HN: wxpath – Declarative web crawling in XPath

https://github.com/rodricios/wxpath
42•rodricios•6d ago•6 comments

Nvidia Stock Crash Prediction

https://entropicthoughts.com/nvidia-stock-crash-prediction
270•todsacerdoti•5h ago•221 comments

Fast Concordance: Instant concordance on a corpus of >1,200 books

https://iafisher.com/concordance/
18•evakhoury•4d ago•1 comments

Instabridge has acquired Nova Launcher

https://novalauncher.com/nova-is-here-to-stay
77•KORraN•2h ago•60 comments

Linux kernel framework for PCIe device emulation, in userspace

https://github.com/cakehonolulu/pciem
198•71bw•13h ago•72 comments

The Zen of Reticulum

https://github.com/markqvist/Reticulum/blob/master/Zen%20of%20Reticulum.md
83•mikece•8h ago•51 comments

Level S4 solar radiation event

https://www.swpc.noaa.gov/news/g4-severe-geomagnetic-storm-levels-reached-19-jan-2026
586•WorldPeas•1d ago•190 comments

When "Likers'' Go Private: Engagement with Reputationally Risky Content on X

https://arxiv.org/abs/2601.11140
25•linolevan•3h ago•13 comments

A scammer's blueprint: How cybercriminals plot to rob a target in a week

https://www.reuters.com/graphics/SOUTHEASTASIA-SCAMS/MANUALS/klpyjlqelvg/
18•giuliomagnifico•1h ago•3 comments

IP Addresses Through 2025

https://www.potaroo.net/ispcol/2026-01/addr2025.html
135•petercooper•7h ago•95 comments

Reticulum, a secure and anonymous mesh networking stack

https://github.com/markqvist/Reticulum
326•brogu•21h ago•86 comments

Show HN: Ocrbase – pdf → .md/.json document OCR and structured extraction API

https://github.com/majcheradam/ocrbase
77•adammajcher•8h ago•29 comments

The secret medieval tunnels that we still don't understand

https://weirdmedievalguys.substack.com/p/the-secret-medieval-tunnels-that
38•coloneltcb•2h ago•13 comments

Channel3 (YC S25) Is Hiring

https://www.ycombinator.com/companies/channel3/jobs/3DIAYYY-backend-engineer
1•aschiff1•9h ago

De-dollarization: Is the US dollar losing its dominance? (2025)

https://www.jpmorgan.com/insights/global-research/currencies/de-dollarization
506•andsoitis•5h ago•671 comments

IP over Avian Carriers with Quality of Service (1999)

https://www.rfc-editor.org/rfc/rfc2549.html
61•mig4ng•10h ago•24 comments

The Alignment Game (2023)

https://dmvaldman.github.io/alignment-game/
47•dmvaldman•4d ago•9 comments

What came first: the CNAME or the A record?

https://blog.cloudflare.com/cname-a-record-order-dns-standards/
443•linolevan•1d ago•152 comments

Increasing the performance of WebAssembly Text Format parser by 350%

https://blog.gplane.win/posts/improve-wat-parser-perf.html
99•gplane•5d ago•32 comments

Stewart Brand – Maintenance: Of Everything, Part One

https://press.stripe.com/maintenance-part-one
7•mitchbob•2h ago•0 comments

The coming industrialisation of exploit generation with LLMs

https://sean.heelan.io/2026/01/18/on-the-coming-industrialisation-of-exploit-generation-with-llms/
244•long•1d ago•151 comments

Prediction markets are ushering in a world in which news becomes about gambling

https://www.theatlantic.com/technology/2026/01/america-polymarket-disaster/685662/
466•krustyburger•2d ago•453 comments

Notes on Apple's Nano Texture (2025)

https://jon.bo/posts/nano-texture/
247•dsr12•1d ago•128 comments

Nanolang: A tiny experimental language designed to be targeted by coding LLMs

https://github.com/jordanhubbard/nanolang
220•Scramblejams•23h ago•176 comments
Open in hackernews

OpenAI is rolling out age prediction

https://openai.com/index/our-approach-to-age-prediction/
43•pretext•2h ago

Comments

twelvechairs•1h ago
"it is tempting, if the only tool you have is a hammer, to treat everything as if it were a nail."
zatkin•1h ago
This title gave me a weird feeling as if they were going to predict my own age.
rogerrogerr•1h ago
That’s what they’re doing
VTimofeenko•1h ago
Maybe at some point they will graduate to being able to predict who I am from "Friends"
heliumtera•1h ago
exactly, i`m genuinely impress by how little people here have figure this
JohnMakin•1h ago
Hard no. It's so easy to get "flagged" by opaque systems for "Age verification" processes or account lockouts that require giving far too much PII to a company like this for my liking.

> Users who are incorrectly placed in the under-18 experience will always have a fast, simple way to confirm their age and restore their full access with a selfie through Persona, a secure identity-verification service.

Yea, my linkedin account which was 15 years old and was a paid pro user for several years got flagged for verification (no reason ever given, I rarely used it for anything other than interacting with recruiters) with this same company as their backend provider. They wouldn't accept a (super invasive feeling) full facial scan + a REAL ID, they also wanted a passport. So I opted out of the platform. There was no one to contact - it wasn't "fast" or "easy" at all. This kind of behavior feels like a data grab for more nefarious actors and data brokers further downstream of these kinds of services.

seneca•1h ago
Yeah, this is all far far too invasive. The goal is obviously to gather as much data on you as possible under whatever pretense users are most likely to accept. "Think of the children", as always. This will then be used to sell advertising to you, or outright sell it to data brokers.

New boss, same as the old boss.

samename•1h ago
The unfortunate reality is this isn't just corporations acting against user's interests, governments around the world are pushing for these surveillance systems as well. It's all about centralizing power and control.
pixl97•1h ago
Yep. Whenever platforms opt for more data I opt out. And like clockwork they let loose all that PII to hackers within months.
lpcvoid•1h ago
>young people deserve technology that both expands opportunity and protects their well-being.

Then maybe OpenAI should just close shop, since (SaaS) LLMs do neither in the mid to long term.

sho_hn•1h ago
I think this is good.

I've been very aggressive toward OpenAI on here about parental controls and youth protection, and I have to say the recent work is definitely more than I expected out of them.

DarkNova6•1h ago
"I'm sorry Dave, I'm afraid I can't do that"
sho_hn•1h ago
I'm an engineer working on safety-critical systems and have to live with that responsibility every day.

When I read the chat logs of the first teenager who committed suicide with the help and encouragement of ChatGPT I was immediately thinking about ways that could be avoided that make sense in the product. I want companies like OpenAI to have the same reaction and try things. I'm just glad they are.

I'm also fully aware this is unpopular on HN and will get downvoted by people who disagree. Too many software devs without direct experience in safety-critical work (what would you do if you truly are responsible?), too few parents, too many who are just selfishly worried their AI might get "censored".

There are really good arguments against this stuff (e.g. the surveillance effects of identity checks, the efficacy of age verification, etc.) and plenty of nuance to implementations, but the whole censorship angle is lame.

throwaway132448•1h ago
Maybe we don’t all need saving from ourselves. Maybe we need to grow up and have some personal responsibility. As someone who is happy to do that, seeing personal freedom endlessly slashed in the name of safety is tiresome.

My feelings have absolutely nothing to do with censorship. That’s just an easy straw man for you to try and dismiss my point of view, because you’re scared of not feeling safe.

sho_hn•1h ago
I'm not under 18. I assume you aren't either.
throwaway132448•1h ago
I was addressing your own (supposedly) safety-critical work, how you’ve used that to justify other work in the name of safety more broadly, and how you’ve placed yourself on a pedestal with your experience, to convince yourself that comments by others on the necessity of such safety are less qualified.
pixl97•1h ago
Cool, I'd like you to make a commercial system you sell access to and ensure that it is unsafe. I'll represent the injured and we'll own all your corporate assets, and like will pierce the corporate veil due to your wonton behavior.
throwaway132448•1h ago
What are you on about? Laws are a codification of social norms. I’m not suggesting anything outside of existing social norms. Quite the opposite, I’m suggesting we stop changing them.
footy•1h ago
I am against companies doing age verification like this due to the surveillance effects, but I agree with you that the censorship angle is not a good one.

I suppose mainly because I don't think a non-minor committing suicide with ChatGPT's help and encouragement matters less than a minor doing so. I honestly thing the problem is the user interface for GPT being a chat. I think it has a psychological effect that you can talk to ChatGPT the same way you can talk to Emily from school. I don't think this is a solvable problem if OpenAI wants this to be their main product (and obviously they do).

sonofhans•1h ago
This is a thoughtful response and deserves discussion. Yes, certainly, OpenAI might get your age wrong. Yes, certainly, they’re signaling to advertisers.

But consider OPs point — ChatGPT has become a safety-critical system. It is a tool capable of pushing a human towards terrible actions, and there are documented cases of it doing this.

In that context, what is the responsibility of OpenAI to keep their product away from the most vulnerable, and the most easily influenced? More than zero, I believe.

seneca•1h ago
> ChatGPT has become a safety-critical system.

It's really really not. "Safety-critical system" has a meaning, and a chat bot doesn't qualify. Treating the whole world as if it needs to be wrapped in bubble-wrap is extremely unhealthy and it generally just used as an excuse for creeping authoritarianism.

richwater•1h ago
> It is a tool capable of pushing a human towards terrible actions

So is Catcher In The Rye and Birth of a Nation.

> the most vulnerable, and the most easily influenced

How exactly is age an indicator of vulnerability or subject-to-influence?

samename•1h ago
Interesting. Do you believe OpenAI has earned user trust and will be good stewards of the enhanced data (biometric, demographic, etc) they are collecting?

To me, this feels nefarious with the recent push into advertising. Not only are people dating these chat bots, but they are more trusting of these AI systems than people in their own life. Now, OpenAI is using this "relationship" to influence user's buying behavior.

sigmar•1h ago
>behavioral and account-level signals, including how long an account has existed, typical times of day when someone is active, usage patterns over time, and a user’s stated age.

Surely they're using "history of the user-inputted chat" as a signal and just choosing not to highlight that? Because that would make it so much easier to predict age.

zardo•1h ago
Chat history would be a good signal to predict age until you give kids a reason to try to confound it.
engineer_22•1h ago
Even more adults would be flagged as children.
sigmar•1h ago
I, for one, would love to see the gen alphas tiktoking about what 401k questions to type into chatgpt
al_borland•1h ago
> Viral challenges that could encourage risky or harmful behavior in minors

Why would it encourage this for anyone?

gardnr•1h ago
Hey Al, they might be implying that non-minors would be impervious to the viral challenges based on some sort of well-developed critical thinking facilities. I am not so optimistic.
pixl97•1h ago
After watching politics over the past decade it seems people of all ages have no critical thinking skills.
al_borland•1h ago
A lot of people are using AI as a trusted friend, because they don't really have anyone else. A good friend would, I hope, talk someone out of doing something dangerous just to get a silly viral video. With AI being trained on the internet, that's going to have a very different take on things, as the internet only cares about the spectacle, not the person performing it.
gardnr•1h ago
When we look at how fast and coordinated the rollout of age verification has been around the globe, it's hard not to wonder if there was some impetus behind it.

There are dark sides to the rollout that EFF details in their resource hub: https://www.eff.org/issues/age-verification

There is a confluence of surveillance capitalism and a global shift towards authoritarianism that makes it particularly alarming right now.

JohnMakin•1h ago
Agreed - Interesting that these systems inevitably involve proving you're a citizen in some way, which seems unnecessary if your goal is to try to figure out someone's age.
reducesuffering•1h ago
In case it wasn't clear LLM conversations are being analyzed in a similar way to the social media advertising profiles...

"Q: ipsum lorem

ChatGPT: response

Q: ipsum lorem"

OpenAI: take this user's conversation history and insert the optimal ad that they're susceptible to, to make us the most $

whynotmaybe•1h ago
Age detection was already very effective with Leisure Suit Larry 3 age questions.

https://allowe.com/games/larry/tips-manuals/lsl3-age-quiz.ht...

amarant•1h ago
Some of those questions are highly regional. Like the W-4 being a tax form... Not where I'm from it's not!
jampa•1h ago
I imagine they're building this system with the goal of extracting user demographics (age, sex, income) from chat conversations to improve advertising monetization.

This seems to be a side project of their goal and a good way to calibrate the future ad system predictions.

samename•1h ago
Exactly, all under the guise of "protect the children" - a tried and true surveillance and control trope.
embedding-shape•26m ago
For context though, people have been screaming lately at OpenAI and other AI companies about not doing enough to protect the children. Almost like there is no winning, and one should just make everything 18+ to actually make people happy.
heliumtera•1h ago
safe to say everything in existence is created to extract user demographics. it was never about you finding information, this trillion market exists to find you. it was never about you summarizing information getting around advertisement, it is about profiling you.

this trillion market is not about empowering users to style their pages more quickly, heh

kube-system•1h ago
I think they're quite explicitly saying they already can determine your demographics from your chats. Which is almost certainly true for most users.
peddling-brink•53m ago
And also to reduce account sharing. How will a family share an account when they simultaneously make the adult account more “adult”, and make the kids account more annoying for adults.

Lots of upsides for them.

nubg•1h ago
They're trying to make ChatGPT more attractive to advertisers.
samename•1h ago
Exactly. The more data they can collect, the better.

Is it not in OpenAI's best interested for them to accidentally flag adults as teens so they have to "verify" their age by handing over their biometric data (Persona face scan) or their government ID? Certainly that level of granularity will enhance the product they offer for their advertisers.

thuruv•1h ago
> We’re learning from the initial rollout and continuing to improve the accuracy of age prediction over time

> While this is an important milestone, our work to support teen safety is ongoing.

agreed, I guess we'll be seeing some pushbacks similar to Apple's CSAM but overall it's about getting a better demographics on their consumers for better advertising especially when you have a one-click actions combined with it. We'll be seeing handful of middleware plugins (like Honey) popping up, which I think the intended usecase for something like chat based apps

big_toast•1h ago
I hope Anthropic or someone pulls an Apple and has the taste to say no to ads. Maybe it will just be Apple. (Even their resistance is slowly fading..)

We don't need to jam ads into every orifice.

I hope there's more value to be had not doing ads than there is to include them. I'd cancel my codex/chatgpt/claude if someone planted the flag.

OpenAI seems to think it has infinite trust to burn.

fakedang•56m ago
You give too much credit to Apple in the AI age. Especially since they've already partnered with Google to power Siri with Gemini now.

Apple is a has-been. Anthropic is best positioned to take up the privacy mantle, and may even be forced to, given that most of their revenue is enterprise and B2B.

BiteCode_dev•1h ago
The minority reports vibe is getting stronger by the minutes.
throwaway132448•1h ago
Creepy people doing creepy things.
aleksandrm•1h ago
It's nonsense and doesn't work. They have "age predicted" my account a couple of months back saying I'm under 18, while I'm a man in my 40s who uses ChatGPT for mostly work related stuff, and nothing that would indicate that it's someone under 18. So now they are asking for a government ID to prove it. Yeah, no thanks.
pixl97•1h ago
No more typing "how is babby formed" I guess.
aleksandrm•55m ago
"Am I pregante"
samename•1h ago
That's because it was never really about protecting the children.
afpx•1h ago
OpenAI are liars. I have all the privacy settings on, and it still assumes things about me that it would only do if it knew all my previous conversations.
footy•1h ago
sounds like a good reason to stop using it no?
seneca•1h ago
It feels like OpenAI is moving into the extraction phase far too soon. They are making their product less appealing to end users with ads and aggressive user-data gathering (which is what this really is). Usually you have to be very secure in your position as a market segment owner before you start with the anti-consumer moves, but they are rapidly losing market share, and they have essentially no moat. Is the goal just to speed-run an IPO before they lose their position?
hexbin010•1h ago
How do I block these ads?
samename•1h ago
Stop using ChatGPT or pay $20/month (for now). Alternatively use the APIs instead
hexbin010•2m ago
[delayed]
yunohn•1h ago
This is 100% for advertising, not user safety.

It’s absolutely crucial for effective ad monetization to know the users age - significant avenues are closed down due to various legislation like COPPA and similar around the world. It severely limits which users can even be subject to ads, the kind of ads, and whether data can be collected for profiling and targeting for ads.

samename•1h ago
Are you suggesting regulations designed to protect children actually require more data collection and enable the surveillance economy?
qoez•1h ago
Does regulators really care about a predicted age? I feel like they require hard proof of being above age to show explicit content. The only ones that care about predicted age is advertisers.
Retr0id•1h ago
In the UK, age verification just has to be "robust" (not further specified). Face scanning, for example, is explicitly designated as an allowed heuristic.
Imustaskforhelp•1h ago
It's not much for the regulators as much as its for the advertisers.

At this point, just use gemini (yes its google and has its issues if you need SOTA) or I have recently been trying out more and more chat.z.ai for simple text issues (like hey can you fix this docker issue etc.) and I feel like chat.z.ai is pretty good plus open source models (honestly chat.z.ai feels pretty SOTA to me)

threetonesun•1h ago
Kagi's Assistant is the most useful tool I've found as far as searching goes, and occasionally simple codegen. Let's you use a wide variety of models and isn't tracking me.
Imustaskforhelp•1h ago
If we are talking about complete privacy. I am trying out https://confer.to (created by signal team) too and I am unable to run it on my mac (passkey support)(I tried it both in zen & orion) but I tried it on an android chrome (tablet) and I am kinda more optimistic about it too

I have heard good things about Kagi in fact, that's the reason why I tried orion and still have it in the first place but I haven't bought Kagi, I just used the free searches orion gives & I don't know if it has Kagi's assistant.

I think proton's Lumo is another good bet.

If you want something to not track you, I once asked cerebras team on their discord if they track the queries and responses from their website try now feature and they said that they don't. I don't really see a reason why they might lie about it given that its only meant for very basic purposes & they don't train models or anything.

You also get one of the fastest inferences for models including GLM 4.7 (which z.ai uses)

You might not get search results though but for search related queries duck.ai's pretty good and you can always mix and match.

But Cerebras recently got a 10 billion $ investment from OpenAI and I Have been critical of them from now on so do be wary now.

Kagi Assistant does seem to be good if someone already uses Kagi or has a subscription of it from what I feel like.

heliumtera•1h ago
Any proof that you are above a certain age will also expose you identity. That is the only reason regulators care about children safety online, because they care about ID. LLMs are very good at profiling users in hacker news and finding alt accounts, for example. profiling is the best use case for llms.

So there you go, maybe it wont give exactly what regulators say they want, but it will give exactly what they truly want.

Retr0id•1h ago
Everyone's saying this is for advertising, but I don't think it is. It's so they can let ChatGPT sext with adults.
samename•1h ago
Do you expect the data collected for age verification will be completely separate from the advertising apparatus? I would expect the incentives would align for this to enhance their advertising options.
Retr0id•1h ago
I'll almost certainly get used for both, but I believe "adult content" is the primary motivator. If it was just for ads they wouldn't even bother announcing it as a "feature", they'd just do it.

Also:

"Users can check if safeguards have been added to their account and start this process at any time by going to Settings > Account."

Jensson•53m ago
> If it was just for ads they wouldn't even bother announcing it as a "feature", they'd just do it.

Its a feature for advertisers, and investors also wanna know. Did you think you are the customer?

Retr0id•50m ago
"you can target ads by demographic" is table stakes
tomasphan•1h ago
Agreed, see https://www.reuters.com/business/openai-allow-mature-content...
fakedang•49m ago
Exactly. Advertising will drive away users unless they are slowly trained into it, which will take time, time that Open AI doesn't have.

Meanwhile, the adult market is huge and sureshot revenue from a user base that is more likely to not mind the ads.

sodafountan•1h ago
I just asked ChatGPT. "Based on everything I've asked, how old do you think I am?" It was dead-on with its answer. It guessed 30-35. I'm 32.

That was just a spur-of-the-moment question. I've been using ChatGPT for over six months now.

prox•1h ago
But did it tell on what basis it made that assumption?
sodafountan•1h ago
Yes, it listed a few of my past questions as reference points. I had asked some questions about Nintendo 64/Dreamcast and Gamecube games. It also used information I had asked it about programming languages and some work-related questions to guess my age.

I don't know how OpenAI plans to do this going forward, just quickly read the article and figured that might be a good question to ask ChatGPT.

Edit: I just followed that up with, "Based on everything I've asked, what gender am I?" It refused to answer, stating it wouldn't assume my gender and treats me as gender neutral.

So I guess it's ok for an AI agent to assume your age, but not your gender... ?

I don't really feel like diving into the ethics of OpenAI at the moment lol.

prox•21m ago
If they are shielding you giving back answers, doesn’t mean there is a lot of profiling going on behind the screens of all big tech. How close are they to behavioral monitoring?
Barrin92•1h ago
well I hope it's better than Spotify's age prediction which came to the conclusion that I'm 87 years old.

Seriously though this is the most easily game-able thing imaginable, pretty sure teens are clever enough to figure out how to pretend to be an adult. If you've come to the conclusion that your product is unsuited for kids implement actual age verification instead of these shoddy stochastic surveillance systems. There's a reason "his voice sounded deep" isn't going to work for the cashier who sold kids booze

raincole•1h ago
Pretty cool. Evidence that you can do whatever you want under the banner of 'protecting the kids.'
bilekas•1h ago
Protecting the kids and fighting terror. Anything that can't be argued against is always used as a justification of people in power who don't want to incite a riot.

Politicians, CEOs, Lawyers it's standard practice because it's so effective.

elzbardico•1h ago
Looks like an elegant solution. And yes, demographics are useful for advertising.
gostsamo•1h ago
Let's be honest - to protect the children, big tech will put everyone under the suspicion of being one. And the issue is not how they use the technologies they have, because they have a moral responsibility to do it safely, but that we don't have technologies of hours.

What I wonder lately is how an adult person can be empowered by tech to bare the consequences of their action and the answer usually is that we cannot. We don''t have the means of production in the literal marxist definition of the phrase and we are being shaped by outside forces that define what we can do with ourselves. And it does not matter if those forces are benevolent or not, it matters that it is not us.

The winter is coming and we are short on thermal underware.

The chinese open models being reason for hope is just a very sad joke.

xgkickt•1h ago
How long before a phrase is found that causes a predicted birthdate of 1970/01/01 ?
curtisblaine•1h ago
Wait, I don't understand this. Does it mean that they can erroneously predict I'm a minor, covertly restrict my account without me knowing? I guess it's time to cancel my subscription.
samename•41m ago
Yes, but it's to protect the children! ;) Just scan your face in the app and your restrictions will be lifted.
Shellban•14m ago
Considering that OpenAI is having trouble getting its models to avoid recommending suicide (something it probably does not want for ANY user), I rather doubt this age prediction is going to be that helpful for curbing the tool's behavior.