MurphyA/hacker-news huggingface dataset:
by notepad0x90 | 2025-09-10 13:00:19+00:00
Makes sense. I would say if productivity is below 30% of RTO then it's RTO. I can't imagine that though. Most people are productive 3-4h at most in office jobs, it shouldn't that difficult to measure output/productivity. Just meetings normally takes at least 1-2h on average out of most people's work days.
by zenmac | 2025-09-10 13:00:21+00:00
Yeah I was first very excited to see a smaller iPhone again, but was very very disappointing that is about the thickness.

NO BODY cares about the thickness!!! I want something that I can hold like the iPhone 5!!!! Or iPod touch size!! Don't want a big screen to watch netflix!!!

This is freaking phone for god sake, back in the old iphone days there were a balance.

Stuff like this is what turns me back to dump phone. I want a phone, not a freaking computer in my hand!
by basilikum | 2025-09-10 13:00:26+00:00
Tunneling underground is extremely expensive. Individual self driving pods aka cars are very expensive. But most importantly cars do not get more efficient in capacity just because you put them underground, plus now you have to build entrances and exits to the underground system everywhere. Traveling also becomes a lot less appealing when you're in a black tube all the time rather than seeing the city around you. It's also not possible because the underground is not just unoccupied but there is already other existing infrastructure down there.

What you are describing is just a much less efficient, worse version of a subway.
by gambiting | 2025-09-10 13:00:34+00:00
What are you talking about - the Wales experiment as you called it has clearly shown it's a good idea - I wish it was implemented everywhere now and the numbers clearly support it. It's only being raised back up to 30 in areas where

1) the data suggests no improvement(which was always the intention of the change)

2) the issue became political and the limits are raised no matter what the data says

Overall for Wales the improvement in safety has been undeniable though and it's hard to disagree with it.
by nakamoto_damacy | 2025-09-10 13:00:45+00:00
I was walking in a narrow street in Granada, Spain yesterday and two guys on their scooters where going at 40mph, on a street meant mostly for pedestrians. They pollute like cars (the stink is the same, even if smaller engine.) When people talk about cars ruining cities designed for walking, they should include scooters. They look cute in movies but they are not so pleasant to have around in practice. I don't mind the electric scooters the type you stand on because if you're going really fast on a narrow pedestrian and you hit someone it won't be so fatal, and you will get hurt probably equally, so people generally don't ride them at maximum speed. Also, they're essential for take-away food delivery.
by arghwhat | 2025-09-10 13:01:00+00:00
This is a cool intro to how virtualization instructions work, but people need to understand that it is not revolutionary simplicity or anything like that. It's just a a cool tech demo lacking all the important bits of a modern hypervisor required to make it practical, like paravirtualized drivers for example.

Same when someone claims to have written an OS in 1000 lines and all it does is get you to real mode with VGA graphics and an interactive (but useless) prompt.

(Note that you can benefit from virtualization technology in specialized scenarios outside common hypervisors, but that's not really what's being demoed here.)
by lucasacosta_ | 2025-09-10 13:01:15+00:00
That sounds like the way to go. In terms of reading books (my normal usage of e-ink readers) you don't need 60hz when flipping a page, but it's a must when trying to use an app menu, or using Google Drive for example.

Identifying when to increase the refresh rate may be a challenge but I can see it pretty doable for this kind of "limited" scenarios where you either read or navigate a storage app.
by incomingpain | 2025-09-10 13:01:47+00:00
im pretty much entirely coding with ai now. I get to focus more of architecture which appeals to me.

Gemini is my favourite Saas coder, but they lie. They claim 1 million context but the models become braindead beyond 200,000.

GPT 20B is my go-to local coder. It's definitely on par with gemini flash, but not as good as pro. Probably better coder than I am. I have max 120k context configured, but up around 60-80k it gets dumb.

What's also quite interesting, they are particularly bad at ursina and panda3d.
Show HN: Multi-agents AI that builds and stress-tests business strategy
by Jderenne | 2025-09-10 13:01:57+00:00
Hi HN,

I shared an early version of brainTerms (https://www.brainterms.ai) a while ago. It’s an AI platform I’m building to help product managers and any leaders explore and stress-test product and business strategies. Since then, I’ve made big improvements based on feedbacks I got.

What’s new ? - Multi-agent “experts” (market, finance, GTM, personas…) enhanced to meet our trademarked "SAFIR 5C" framework (Strategic Agentic Framework For Intelligent Reasoning) - Interactive scenario simulations and business digital twin analysis. We truly simulate your business dynamics before you spend $$$ in development. - Structured outputs (reports, slides, strategy notes) you can use in real meetings - Faster start: bring your idea as-is, or use the Biltz (quick) mode if you already have a pitch deck, strategic insights etc. - We have now a Demo Environnement (read only) accesible from the homepage

Why I’m building this ?

Strategy tools/skills today are either very manual (consulting, frameworks) or too generic (single LLM prompts). Costly or Toy. Brainterms.ai tries to bridge the gap: structured like a consultancy, but fast and adaptable like AI. Products needs better, faster and cheaper professional strategy.

Questions I often get - Who is this for? : Product Managers, Developers, Entrepreneurs, strategists, innovation managers, – Why not just ChatGPT with prompts? : You could, but brainTerms.ai orchestrate and chains specialized agents, enforces structure, and produces consistent, business-grade outputs. It's based on Academic research and Strategic Best Practice. - Hallucination : some Agents use hallucination as a feature and benefit from it. Others Agents have very strong guardrails to reduce it and benefit from specific tuning. - Security ? : we have security agreement with our provideds and encrypt our data. Enterprise users were happy to know that we can connect to they own corporate environnement (BYOOLM : Bring Your Own LLM). - Business model? : Free to try; subscriptions for advanced use.

What's next ? - We are finalising the first fine tuned LLM on Strategic Reasoning, that will be at the core of our product soon.

I’d love feedback again, especially from those who build products (tech or PM)

Thanks ! https://www.brainterms.ai
by JeanKage | 2025-09-10 13:02:07+00:00
A study by researchers at the universities of Duisburg-Essen and Cologne shows for the first time how microplastics from tyre particles are changing the microbial world in the Rhine. For a period of four weeks, different types of tyre particles were exposed to the river's current, which resulted in clear findings. The journal Environmental Pollution reports.
by gspencley | 2025-09-10 13:02:29+00:00
From an efficiency point of view public transportation makes a lot of sense.

From a quality of life point of view, I have never been comfortable being crammed into a sardine can with that many other people. I've done it. I've never enjoyed it. I do look forward to travelling to the Netherlands one day and I will enthusiastically use public transit there just as a personal experiment to see if my experience differs enough from the subway transit in Montreal or Toronto that gave me nightmares and has me thinking every time I travel there: "Even if it takes me 4x as long to get to my destination, driving is still better than this."

The parent poster made an interesting point that resonates a lot with me. Better public transportation will get people off the roads which will make quality of life better for drivers. I don't see myself ever not being a driver. I need that little bubble that separates me from other people. I don't even like walking on sidewalks in busy metropolitan areas because of the amount of other people and the "over stimulation". And yeah, that's a me problem. Do what you like, just don't take away my means of being able to achieve a little bit of solitude.

It's not pro- public transit and better urban planning that bothers me. It's the anti-car "lobby".

Then again, big city living isn't for me anyway (obviously). I will always choose smaller to mid sized cities, and possibly even rural at some point in the future, for the personal reasons outlined above.
by fjfaase | 2025-09-10 13:03:42+00:00
At your age, I guess it is rather important what you have to offer besides your software development skills. Do you have experience working in teams, a track record with working with people, or extensive knowledge in an adjacent field, such as electronics, IT, or one of the other sciences? Or do you have extensive knowledge of certain safety/security/medical regulations?

Is there some specific area in software engineering that you are drawn to or some application are? There are many applications fields of software development and I think in some large fields it will not be worth trying to compete with junior developers.
by IanCal | 2025-09-10 13:03:46+00:00
> Can you provide a reproducible example of how sorting rows can lead to unrecoverable data loss?

This was in the context of having it in a place humans can edit it directly so the case here is sorting rows by sorting lines. CSV has this wonderful property when editing - anything that doesn't parse it in then out to ensure that it is a valid file lets you write out a broken file if you mess it up - and in addition has the property that the record delimiter is an exceptionally common element in text.

So to answer your question, sure - take a csv file with newlines in some entries and sort the lines. You can restore it if you don't have two entries with newlines in the same field, and then only if you know it was exactly valid to start with, extra commas anywhere etc.

> csvs with quoted strings containing unescaped newlines are extremely baroque

No, they're all over the place. If you don't think so I don't believe you've worked with lots of real world csvs. Also, how do you know? How do you know your file doesn't contain them? Here's a fun fact - you can get to the point very easily where you *cannot programmatically tell*.

> Criticism of csv based on the assumption that strings will contain newlines is not realistic.

It's a very common thing to happen though.

Let's imagine something. CSV doesn't exist. I'm proposing it to you. I tell you that the bytes used to split records is a very commonly occurring thing in text. But don't worry! You can escape this by putting in another character commonly used. Oh and to escape that use two of them :)

Would you tell me to use something else? That you could foresee this causing problems?
by maweki | 2025-09-10 13:03:54+00:00
pods (i guess 2 to 4 passengers) simply do not scale. It doesn't matter whether you put them underground or not. The only solution is for people to not use them.

One part of the solution is bikes, the other is mass transit. What self-driving EV pods may be able to do is be people mover for the last mile to a mass transit hub. But for individual traffic across longer distance it simply does not scale.
by tbrownaw | 2025-09-10 13:04:02+00:00
> I don't appreciate reading anecdata in response to cited findings. It cheapens the discussion.

So does the linked PDF address this proposed "hopelessness" factor, or is it that once someone cites something the discussion becomes restricted to only things that have published study results?

Also, if someone were to cite https://doi.org/10.1136/bmj.k5094 on the effectiveness of parachutes, are other commenters then forbidden from citing anecdata that disagree with the findings?
by outime | 2025-09-10 13:04:11+00:00
Pontevedra has around 80K inhabitants, so it's practical to design it this way. But when cities are much bigger, problems start to arise. Not everyone can afford to live in the center (nor is there space for them, and building taller than a certain number of meters or floors is often forbidden for various reasons), so people begin moving farther out.

Sure, there's public transport... but only until it takes six times longer than driving a car - and that's not even counting all the issues public transport has in many places, which some people deny even exist, although doesn't matter to me because I just experienced them first hand way too many times (I have never owned a car until recently).

At that point, you might as well move farther out to a nicer house, less expenses and just drive a bit longer.
by elric | 2025-09-10 13:04:22+00:00
Here are some of the things I do in Obsidian:

1. I have a Daily Note which is my starting point of the day. Aside from some TODOs and some daily reflections, it also contains an image map of things that are currently important. This map gets updated (in a template) once every couple of weeks, depending on where my focus is. Currently it links to a big project for a customer, my running progress, a webdav tool I'm working on, and a book I'm reading.

2. Many of my note templates automatically include a dataview query which spits out a list of related notes. E.g. for People that will be a list of recent meetings and mentions. For Programming related notes there's a list of notes that link to it, like for Java I have ~200 other notes that point at Java, from Method References to Apache Commons libraries.

3. Lots of links. This makes the local Graph View somewhat useful for rediscovery. This includes links to things that don't exist yet (and may never exist). Like I'm probably not going to create a note about Mitochondria, but several notes link to it.

Some more serendipitous discovery might be nice. I've experimented with various Related Notes plugins, most are garbage which find similarities where none exist because they can't tell the note structure apart from its salient content.
by aunty_helen | 2025-09-10 13:04:29+00:00
This is level one understanding of public transport systems. “We should build metros and then everything will be better”

There’s cities that are not setup for efficient public transportation or walkable living. Redesign it from ground up and put a metro smack bang through the middle. Until then, it’s just not going to work.

People, and especially people who like the idea of walkable cities that reside in council chairs, often miss this fundamental step.

“Build it and they will come” won’t get you housing density, small local retailers, geographic compression of services, suitable climate, a different way of living. All key ingredients for walkable cities with well served public transport.
by octo888 | 2025-09-10 13:04:31+00:00
Not to be a doomer but I think public transport has peaked in many places in Europe except the big famous standouts like Netherlands, Switzerland, Luxembourg etc

The UK government for example is reducing subsidies for the railway and raising prices sometimes even 12-14% per year. This would be unimaginable 10 years ago. We have many railway workers who feel underpaid and some that feel they deserve the same pay as speciality doctors. This gets directly paid for by price rises. It is strike again /again/ for the railways.

I think the time is now that governments don't care about public transport
by alerighi | 2025-09-10 13:04:39+00:00
The problem that car solved years ago, is the following: you can develop a city without cars up to a point where the distance that you have to move to get to your work, or the supermarket, the hospital, etc is at max some km, let's say not more than 10/20.

That has the consequence that all people wants to live in the city center, and not in peripherals areas. This has the consequence of making the cost of an house (or rent) go up to a point where most people can't even afford it, while the salary that you get in the city rests more or less the same. Having a lot of people concentrated living in a small place produces also other unwanted effects, that lower the quality of living.

Cars allow us to develop our society not in big cities, but in rather small towns, without ugly skyscrapers of 20 floors but with nice houses where everyone can afford, for example, to have its own property, with its own garden, its own peace, without having being forced to share its living space with people he didn't choose.

To me cars, and now also remote work, are a benefit because they allow us to live in a more sustainable way. Thanks to car we can think of reclaiming villages where all the population migrated to the cities in the past years.

Example in Italy, where I live, why should I go to live in Milan, where houses cost 10 times the rest of the country, while having a car and a job that allows me to remote work at least half the week I can live in a small village near Milan and reach it by car when needed?

To me a society without cars is a less free society, in fact the development of the USA to me is to take as an example, while where they didn't have cars is the Soviet Union, and look at it...
by vjk800 | 2025-09-10 13:04:40+00:00
Oh yeah, public transportation is fucking horrible. Still, it is basically the only viable way to support a large population density and not turn everything into a wasteland of parking lots and car lanes. Let's face it: cars just take an order of magnitude or two more space than e.g. metro for the same number of passengers and, in big cities, space is a very scarce resource.
by scarface_74 | 2025-09-10 13:04:54+00:00
Yes a lawyer is going to be able to give you career advice and tell you how to phrase the answer to the question “why did you leave your last job”?

I already knew what to do. Remove any connections from LinkedIn of anyone who knew that I was PIPed. I knew that any employment verification would go through TheWorkNumber and all it would know were dates and comp amount.

Not that anyone asked…
by dijit | 2025-09-10 13:05:27+00:00
I actually counted these two: https://i.kym-cdn.com/photos/images/original/002/417/129/282...

If it's an average of 1.2 persons per car (which is the typical average) and counting roughly 1,200 cars on those images (in aggregate) it would take roughly 28-29 rail cars to transport this number of people.

That's 3-5 trains worth. All that traffic could have been saved (in theory) by 3-5 trains.

I don't imagine a train would serve all those people, but imagine the massive dent it would make to have good train systems between large population centers.
by i_c_b | 2025-09-10 13:05:31+00:00
"But that's not how real life works at all, right?"

How real life works is always a plausible interesting goal, but it's very often at odds with a bunch of other valuable goals for players.

A particular sharp example of this is sports video games. It might well be interesting (and certainly realistic) to simulate bad referees in a sports game. Horrible blown calls by tennis line judges, or missed calls by basketball refs, or bad umpire calls on pitches. Real-life soccer makes working the refs and their inability to see everything an art form, as far as I can tell.

Perhaps that's interesting, but the irony here is that real life refs are actually bad simulations of the original perfect game code in the first place, from a certain point of view. I think debates about the use of instant replay in sports gets at the heart of this, and one could imagine using real-time AI to help refs taking this conversation much further.

I think the sports case is a particularly sharp example, but it definitely holds with all sorts of choices in games.

For Animal Crossing in particular, I remember when I finally played it, it struck me after a while how much it had in common with recent MMOs (Everquest and World of Warcraft) that I had had fellow game developer friends have their lives severely disrupted by. And when I played the original Animal Crossing, I remember noticing specifically how careful the designers were in having players use up every bit of interesting content in a day after 45 minutes or an hour, so that eventually you'd run out of things to do, and that was the game's signal to put it down and pick it up again the next day. And I remember being struck by how intentional it was, and how humane it was... particularly given their goal of wanting to make a game that was asynchronously coop (where different family members could play in the same shared space at different times of day and interact asynchronously). As a game designer myself, I really respected the care they put into that.

Anyway, that's my immediate thought on seeing this (fascinating, valuable) experiment with LLM dialogue in Animal Crossing. The actual way NPCs work in these games as they are has been honed over time to serve a very specific function. It's very similar to personal testimonials by paid actors in commercials; a human expressing an idea in personal dialogue form triggers all sorts natural human attention and reception in us as audience members, and so it's a lot more sticky... but getting across the information quickly and concisely is still the primary point. Even dialogue trees in games are often not used because of their inefficiency.

I totally think that there will be fascinating innovations from the current crop of AI in games, and I'm really looking forward to seeing and trying them. I just think it's unlikely they will be drop-in replacements for a lot of the techniques that game developers have already honed for cases like informational NPC dialogue.
by raptor99 | 2025-09-10 13:05:46+00:00
Do you happen to know if there are any project or talk of not archiving the video content itself, but instead the transcripted content instead? I feel that this would be very advantageous to archive knowledge based (versus delivery based, such as prank and stand up comedy) videos much more efficiently than the videos themselves.

Someone below brought up a very good point about many of these videos being much longer than they need to be (mainly for reimbursement and ad reasons). If the transcripted content can be archived, it could also be abridged and/or summarized as well as being combined with other similar video content as well.

I'm sort of thinking as I go here now, but I would think that perhaps Youtube has an API that lets you access the closed captions of videos?
by sillyfluke | 2025-09-10 13:05:58+00:00
This is where iphones are a risk actually. Android webapps on old phones with their original OS installed have a better chance of working compared to old iphones with their original iOS version. This is both due to Apple's continued stubborness in keeping Safari releases tied to iOS releases (eg. "to get the banana you need the gorilla holding the banana and the entire rainforest the gorilla lives in...") and the dominance of Chromium browsers in webapp testing.

On old Android phones it's easier to install newer browsers without having to update the OS.

Edit: your comment is also not valid on occasion. I've recently witnessed some banking mobile webapps being broken for long periods of time and one bank that decided to remove the agreement approval function from their webapp, forcing you to download the app in order to approve updated agreements.