MurphyA/hacker-news huggingface dataset:
by frankacter | 2025-10-23 03:09:25+00:00
Perplexity's response to Reddit's lawsuit:

"Dear Reddit community,

You might’ve read Perplexity was named in a lawsuit filed by Reddit this morning. We know companies usually dodge questions during lawsuits, but we’d rather be up front.

Perplexity believes this is a sad example of what happens when public data becomes a big part of a public company’s business model.

Selling access to training data is an increasingly important revenue stream for Reddit, especially now that model makers are cutting back on deals with Reddit or walking away completely. (A trend Reddit has acknowledged in recent earnings reports).

So, why sue Perplexity? Our guess: it’s about a show of force in Reddit’s training data negotiations with Google and OpenAI. (Perplexity doesn’t train foundation models!)

Here’s where we push back. Reddit told the press we ignored them when they asked about licensing. Untrue. Whenever anyone asks us about content licensing, we explain that Perplexity, as an application-layer company, does not train AI models on content. Never has. So it is impossible for us to sign a license agreement to do so.

A year ago, after explaining this, Reddit insisted we pay anyway, despite lawfully accessing Reddit data. Bowing to strong arm tactics just isn’t how we do business.

What does Perplexity actually do with Reddit content? We summarize Reddit discussions, and we cite Reddit threads in answers, just like people share links to posts here all the time. Perplexity invented citations in AI for two reasons: so that you can verify the accuracy of the AI-generated answers, and so you can follow the citation to learn more and expand your journey of curiosity.

And that’s what people use Perplexity for: journeys of curiosity and learning. When they visit Reddit to read your content it’s because they want to read it, and they read more than they would have from a Google search.

Reddit changed its mind this week on whether they want Perplexity users to find your public content on their journeys of learning. Reddit thinks that’s their right. But it is the opposite of an open internet.

In any case, we won’t be extorted, and we won’t help Reddit extort Google, even if they’re our (huge) competitor. Perplexity will play fair, but we won’t cave. And we won’t let bigger companies use us in shell games.

We’re here to keep helping people pursue wisdom of any kind, cite our sources, and always have more questions than answers. Thanks for reading.
by dcre | 2025-10-23 03:09:33+00:00
I’m curious what the magit hunk selection UX consists in. I couldn’t find any videos showing something substantially different from the one built into jj — the videos I found were meant as beginner intros.

I’ve never used magit but I used GitUp (https://gitup.co/) for years before jj. I don’t find the jj one super natural, but I feel like that’s mostly a matter of keyboard shortcuts — I need to see if they can be customized.
by soraminazuki | 2025-10-23 03:09:35+00:00
That's the polar opposite of what "better to ask forgiveness," "bias towards action," or "I don't spend as much time looking to 'align with stakeholders'" mean. They, by definition, mean acting on your own agenda as quickly as possible before anyone else affected can voice their concerns. This is consistent with how Facebook has been behaving all along: from gathering images of female college students without consent to rate their appearance, to tricking teenagers into installing spyware VPNs to undermine competitors[1], and even promoting ragebait content that has contributed to societal destabilization, including exacerbating a massacre[2].

You can't label others as mere nuisance and simultaneously claim to respect them when faced with criticism.

[1]: https://techcrunch.com/2019/02/21/facebook-removes-onavo/

[2]: https://www.theguardian.com/technology/2021/dec/06/rohingya-...
by Animats | 2025-10-23 03:09:57+00:00
There's a series of limitations on peak motor torque. Motors usually hit the thermal limits first, but here are some of the other limits:

A big problem with older permanent magnet motors was that too much current could produce a field strong enough to demagnetize the magnets. Supposedly this is is less of an issue in the cobalt-neodymium magnet era, because the coercivity of those alloys is so high.

Then there's finding a pulsed current source to power the windings. Ultracapacitors are good for that.

Then there's finding big enough semiconductors to switch the thing. This, too, has become much easier. It's amazing how much current you can put through modern power MOSFETs.

Then there are mechanical limitations. At some point, something is going to bend from sheer torque. At some point below that, the windings will distort a little on each cycle and wear out.

Applications for this include railguns, catapults, and electrically launched rollercoasters. Interestingly, they're all linear motors.

(I haven't looked at this since the 1990s. The components needed are now far better and more available. Mostly as a spinoff of the electric car industry.)
by necovek | 2025-10-23 03:10:08+00:00
This highlights a couple of incident reports and how they fall back to the "Old Way" without giving examples of what could have been "the New Way" conclusions.

How could one have improved the systemic conditions in the examples given? What would be an example of process improvement that could not be considered a "more automation added" type of thing (eg. ensuring more information is available to the human operator faster and more obviously is some sort of automation).

Automation here is seen as a synonym for added complexity, even if it can be used as part of a systemic improvement to processes to provide the better framework for any operator in any state to make a better call in the moment. Esp in software, automation is part of our processes (heck, software engineering is automation), so I am a bit confused about the message.
by dgently7 | 2025-10-23 03:10:17+00:00
I consume all text as images when I read as a vision capable person so it kinda passes the evolution does it that way test and maybe we shouldn’t be that surprised that vision is a great input method?

Actually thinking more about that I consume “text” as images and also as sounds… I kinda wonder if instead of render and ocr like this suggests we did tts and just encoded like the mp3 sample of the vocalization of the word if that would be less bytes than the rendered pixels version… probably depends on the resolution / sample rate.
by jasonjmcghee | 2025-10-23 03:10:40+00:00
I've had a pretty poor experience with Gemini.

I've had to convince it to do things it should just be able to do but thinks it can't for some reason. Like reading from a file outside of the project directory- it can do it fine, but refuses to unless you convince it that no it actually can.

Also has inserted "\n" instead of newlines on a number of occasions.

I'd argue these behaviors are much more important than being able to use interactive commands.
by krapp | 2025-10-23 03:10:40+00:00
I wish Christians would realize the Book of Revelations is about the past (probably about Nero Caesar and Roman persecution of Christians) and not the future and stop embarrassing themselves.

Stop trying to figure out which scary new technology is the Number of the Beast. Stop trying to figure out which scary new politician is the Antichrist. Stop trying to figure out what any of that shit means, it doesn't mean anything anymore and the only apocalypse that's going to happen is the one we ourselves create, in part because we persist in our delusion that we don't really have to worry about this world because God's going to burn it all down anyway.
by akshayKMR | 2025-10-23 03:10:48+00:00
Maybe a dumb question but what constitutes user-hosted-content?

Is a notion page, github repo, or google doc that has user submitted content that can be publicly shared also user-hosted?

IMO Google should not be able to use definitive language "Dangerous website" if its automated process is not definitive/accurate. A false flag can erode customer trust.
by aeonfox | 2025-10-23 03:11:28+00:00
Relatedly, the shingles vaccine seems to delay or reduce Alzheimer's onset

https://www.nature.com/articles/s41591-024-03201-5

> We show that the recombinant vaccine is associated with a significantly lower risk of dementia in the 6 years post-vaccination. Specifically, receiving the recombinant vaccine is associated with a 17% increase in diagnosis-free time, translating into 164 additional days lived without a diagnosis of dementia in those subsequently affected. The recombinant shingles vaccine was also associated with lower risks of dementia than were two other vaccines commonly used in older people: influenza and tetanus–diphtheria–pertussis vaccines. The effect was robust across multiple secondary analyses, and was present in both men and women but was greater in women.
by inferiorhuman | 2025-10-23 03:11:39+00:00
Plenty. They're far simpler to fly than multi-engine planes, but they don't have the redundancy or power needed for e.g. airliner purposes. For example FedEx operates a fleet of over 200 single engine turboprops (Cessna 208). Pilatus built about 2,000 PC-12s in the 35 years since it was introduced.
by rvasa | 2025-10-23 03:12:18+00:00
Revenue does exist .. showing demand/value. Also, valuation multiple of 25-70x ARR is in that "captn .. the engine is gonna blow up anything sir". Also, given their current design surface, rapid changes to the "core intelligence layer/substrate" & good usage workflow patterns that are still being discovered ... we are probably creating tech debt faster than value. Specs are great .. but we also discover the [stable/actual/valid] spec as we build (and often at the end of the build).
by tbrownaw | 2025-10-23 03:13:16+00:00
> Additionally, as much people like to harp about "telcos focusing on connection-oriented protocols while we ran loops around them with packets", the reality is that NCP and later TCP pretty much focused on emulating serial lines around, and

The idea with packets is that you don't need to reserve N bit/s of each link along the route to whatever system you're talking to; instead you just repeatedly say "here's a chunk of data, send it to X". It's not really relevant that the typical thing to do with these packets is to build a reliable stream on top of them, what matters is that everything except the endpoints can be a lot dumber.
by matesz | 2025-10-23 03:13:26+00:00
I just run single instance for now with RocksDB backend for internal / search and S3 for blobs - that is what made me think it’s so flexible.

Never hosted Postfix / Dovecot stack, in fact this is the first time I host emails, but from what I understand Stalwart is designed to handle inbound directly.

For very high throughput inbound you could check out KumaMTA - it was designed specifically for that, but I think Stalwart doesn’t have bottlenecks in it’s clustered topologies which would require it unless you are doing something crazy.

They have very good docs in general IMO, here are docs on how to cluster - https://stalw.art/docs/cluster/configuration
by davorak | 2025-10-23 03:13:27+00:00
jaybrendansmith is talking specifically about childhood trauma not any trauma that happens in childhood.

> But not childhood trauma...that makes you weaker

I have only seen "childhood trauma" defined and used as something that has lasting impact. That definition likely comes from studies that study trauma that happens in childhood and how it can have a lasting impact.

Regardless of where it comes from that is how the phrase is typically used.

It would be nice if the field came up with better terms or a better scale that separated out the different traumas by lasting impact, but my assumption is that if it was easy to come up with that kind of scale it probably would have already happened, here is hoping it is easy and it is low hanging from some soon to come along phd student though.
by int_19h | 2025-10-23 03:13:35+00:00
Pre-agricultural societies are generally much more brutal because you need a lot of territory to feed relatively few people. Agriculturalists can conquer other people and make them work for them in a way that doesn't scale for hunters-gatherers. The consequence is that the combatant/noncombatant distinction is much more blurry, and genocide is often an explicit goal of the war.
by kaitai | 2025-10-23 03:14:16+00:00
Adverse childhood experiences definitely correlate with socioeconomic status. It's possible to disentangle their separate effects on some statistical level, but very difficult on a practical level. For instance, losing your home and living with your mom in a car when you're 6 is a socioeconomic ACE.

Someone else in the discussion here made a comment that service members should be mad at this blog post, as it is essentially saying that people cause their own adverse experiences. Well, again, the US armed services tend to draw disproportionately from lower socioeconomic groups, who tend to have higher numbers of adverse experiences. It's very hard to disentangle these correlated variables when it comes to outcomes for real people. And it's a total copout to then blame servicemembers for their PTSD.

We have the language of a cycle of abuse, a cycle of poverty, a cycle of violence. People have recognized the cyclicality of this for millennia. It's good the blogpost brings that out.

The thing that disappoints me about the discussion here (and in the blog post) is that there is this relentless focus on the psychology of things. Being homeless as a child, having a parent die, having family die violently, etc all do correlate with higher rates of cardiac disease, diabetes, etc. Again, can't disentangle from the socioeconomic aspects, but you also can't blame a kid for their family member dying. The idea that "unhealthy people may be more susceptible to trauma" has some veins of validity, but is also just deeply unkind, inhuman, and inaccurate taken to an absolute. Kids in foster care, kids who experienced a school shooting, kids who had a parent die of cancer, etc -- it is immorally self-serving to say it's their own fault. You know it's not.

The blog post itself cherry-picks by focusing on PTSD and the brain, ignoring correlations between ACEs and cardiac problems and diabetes. By focusing on the brain, the author can easily imply it's made up weakness (no lab results to confront) and then move on to "just get over it", which is adjacent to "it's not my problem". I'm not a fan of over-therapizing and I don't think therapy or crystals will fix your diabetes. But don't throw the baby out with Bessel van der Kolk's bathwater.
by shadowgovt | 2025-10-23 03:14:43+00:00
> The most alarming thing was realizing that a single flagged subdomain would apparently invalidate the entire domain.

Correct. It works this way because in general the domain has the rights over routing all the subdomains. Which means if you were a spammer, and doing something untoward on a subdomain only invalidated the subdomain, it would be the easiest game in the world to play.

malware1.malicious.com

malware2.malicious.com

... Etc.
by alyxya | 2025-10-23 03:14:46+00:00
I don't know if or how you've been using AI for coding, but Claude Code is almost certainly being used to develop itself, and I have a hard time imagining their devs not having the best setup possible to make it as easy as possible for Claude Code to iterate on itself with minimal oversight. Once a codebase is well structured and you supply a well thought out meta prompt with something like CLAUDE.md, then there's no reason to check the code output/changes beyond a quick skim.
by krapp | 2025-10-23 03:15:21+00:00
Gene Roddenberry was not a political scientist and wasn't trying to develop a plausible theory or model of a post-scarcity society, and Trek depends on magitech like replicators, free energy and FTL that we can't have in our universe. So his perspective isn't really worth much beyond its entertainment value.

Taking Trek seriously for its politics is about as pointless as taking Asimov seriously for cybernetics and AI.
by smaudet | 2025-10-23 03:15:44+00:00
I don't think the Internet should be run by being on special lists (other than like, a globally run registry of domain names)...

I get that SPAM, etc., are an issue, but, like f* google-chrome, I want to browse the web, not some carefully curated list of sites some giant tech company has chosen.

A) you shouldn't be using google-chrome at all B) Firefox should definitely not be using that list either C) if you are going to have a "safe sites" list, that should definitely be a non-profit running that, not an automated robot working for a large probably-evil company...
by VTimofeenko | 2025-10-23 03:16:10+00:00
> When users host an open source self hosted project like immich, jellyfin, etc. on their own domain...

I was just deploying your_spotify and gave it your-spotify.<my services domain> and there was a warning in the logs that talked about thud, linking the issue:

https://github.com/Yooooomi/your_spotify/issues/271
by bonobo | 2025-10-23 03:18:17+00:00
You mentioned experience, but it's not clear to me if you mean that it's a requirement for "actual understanding." Is this what you're saying? If so, does that mean a male gynecologist doesn't have an "actual understanding" of menstrual cycles and menopause?

I think about astronomers and the things they know about stars that are impossible to experience even from afar, like sizes and temperatures. No one has ever seen a black hole with their own eyes, but they read a lot about it, collected data, made calculations, and now they can have meaningful discussions with their peers and come to new conclusions from "processing and correlating" new data with all this information in their minds. That's "actual understanding" to me.

One could say they are experiencing this information exchange, but I'd argue we can say the same about the translator in the chinese room. He does not have the same understanding of chinese as us humans, associating words to memories and feelings and other human experiences, but he does know that a given symbol evokes the use of other specific symbols. Some sequences require the usage of lots of symbols, some are somewhat ambiguous, and some require him to fetch a symbol that he hasn't used in a long time, maybe doesn't even know where he stored it. To me this looks a lot like the processes that happen inside our minds, with the exception that his form of "understanding" and the experiences that this evokes to him are completely alien to us. Just like an AGI would possibly be.

I'm not confortable looking at the translator's point of view as if he's the analogous to a mind. To me he's the correlator, the process inside our minds that makes these associations. This is not us, it's not under our conscious control, from our perspectives it just happens, and we know today it's a result of our neural networks. We emerge somehow from this process. Similarly, it seems to me that the experience of knowing chinese belongs to the whole room, not the guy handling symbols. It's a weird conclusion, I still don't know what to think of it though...
by aspenmayer | 2025-10-23 03:18:33+00:00
The Ghost in the Shell films and series explore these ideas in a much more nuanced way than I can fit in a comment. Your comment is more thought-provoking than I can hope to do justice with my own, and your words reminded me of Major Kusanagi’s forlorn acknowledgment of her own cyborg body no longer being her own, but rather being government property. After her body’s service life was over, she might get overhauled as long as she continues to serve Section 9, but after she leaves, what would she even be left with, after the classified technology was exhumed from her body? Who would she even be, if her memory of her life of service were also part of her cyberbrain, and subject to recall or extinguishment upon retirement?
by ggm | 2025-10-23 03:19:37+00:00
On the whole these things age like milk. Boomers have a blanket like a burrito wrap, or a shower curtain with Psycho feels, and old-is-new-again kids.

The zeitgeist will not be commoditised. When it's time for plastic bobbing balls on head-bands, balls on headbands appear but not because Aldi brand them.
by HalcyonCowboy | 2025-10-23 03:20:36+00:00
The person you replied to specifically listed multiple studies that do account for socioeconomic factors. Take a look at the second paper, and in the introduction you’ll see that they did sub group analysis for multiple socioeconomic factors. I.e. among people of the same geographic, economic, and ethnic backgrounds, those with higher ACE were at higher risk for a bunch of diseases.

Not to say that I think it’s useful to focus so much on personal trauma outside of therapy, I don’t. But dismissing evidence presented to you without engaging with it doesn’t feel useful either.
by fart-fart-FART | 2025-10-23 03:21:20+00:00
>Here’s where we push back. Reddit told the press we ignored them when they asked about licensing. Untrue. Whenever anyone asks us about content licensing, we explain that Perplexity, as an application-layer company, does not train AI models on content. Never has. So it is impossible for us to sign a license agreement to do so.

I wish they had told reddit to go fuck itself and taken that to court.

unlike the new york times lawsuit - where the platform owns their content and training is a gray area - reddit doesn't own shit. and if they insist otherwise - bye bye section 230 protections, no? they now retroactively own every post in r/jailbait and r/coontown.
by smaudet | 2025-10-23 03:23:17+00:00
> Having all those APIs in a sandbox that mostly just work on billion devices is pretty powerful and a potential succesor to HTML would have to beat that, to be adopted.

I think the giant major downside, is that they've written a rootkit that runs on everything, and to try to make up for that they want to make it so only sites they allow can run.

It's not really very powerful at all if nobody can use it, at that point you are better off just not bothering with it at all.

The Internet may remain, but the Web may really be dead.
by appreciatorBus | 2025-10-23 03:23:17+00:00
My opinion is been that 747’s, cars, trucks, bikes, E bikes, an even pedestrians should be regulated on kinetic energy - basically their ability to do harm to others.

My fear is that without it, regulatory arbitrage will turn every inch of land that doesn’t have a building into Death Race 2000. Cars are not allowed on sidewalks to protect friends? No problem - here’s an electric motorcycle disguised as a bicycle. Hi
by gnabgib | 2025-10-23 03:24:02+00:00
Previously (5+6+9 points, 5 days ago, 4 comments) https://news.ycombinator.com/item?id=45618278 https://news.ycombinator.com/item?id=45624029 https://news.ycombinator.com/item?id=45627471
by davorak | 2025-10-23 03:25:01+00:00
> The problem I'm seeing more and more is that these pop culture trauma books are targeted at the widest audience possible. These authors push trauma as the explanation for everything, so people seeking self-help read these books and assume that trauma must be at the root of the problem they're seeking.

You could replace trauma here and start describing most self books or even some business or leadership books. At least some I have read over the last 35 years.

I bet that social media, influence culture, etc makes it easier to reach a wider audience so the problem is larger or maybe just more obvious and definitely speeds up and feedback loop that seems to bottom out to rent seeking in some cases.
by antonchekhov | 2025-10-23 03:26:04+00:00
I use command-line tooling much more than IDEs (e.g. VS Code), so the `gh` command-line tool (https://cli.github.com) for doing most of the usual hub-oriented workflow (PR authoring, viewing issues, status updates, etc) really helps a lot - I don't have to constantly <cmd>+<tab> to my browser, and point-click-point-click through web pages so much. It would be fantastic if ersc or any other jj-centered code-sharing hub had similar tooling early on.