skysight-inc/HackerNews huggingface dataset:
Hi HN, we are building a reinforcement-learning fine-tuning service for LLMs.

As we know, agents fail all the time. Especially when you try to use them for something actually useful. Current solution approaches suck; prompting has intrinsic limits and supervised fine-tuning requires big explicit datasets that are hard to collect.

So we built a platform to solve that. With Reinforcement Learning/GRPO. Inspired by DeepSeek R1.

You let us intercept your agent's data flow, and we deliver you a fine-tuned open-source model, that is trained on the agent's specific task.

Instead of providing big datasets of explicit fine-tuning samples, you provide a reward function, judging the model's outputs. Our Reinforcement Fine-tuning is very sample-efficient, so you get significantly better results with fewer training steps.

The current paradigm is best suited for “verifiable domains”, like teaching models to reason, write code, use tools & web, play chess, etc. We are working on natively supporting training on MCP protocols (to make the agents actually learn to use the MCP tools), codebases (to understand every edge case of your codebase), and browser agent frameworks.

Next, we will also support an “alignment mode”, where you don’t have to provide a reward function, but provide high-level feedback on past failure runs of your agent.

It is basically the open-source version of OpenAI’s reinforcement fine-tuning API, however deeply integrated into your agent’s stack.

Depending on demand, we consider also making the fine-tuned models downloadable in the future.

We give the first 50 signups $20 in free training credits, so you can try it out. We would love to hear your feedback!
Concussions increase the risk of various neuropsychiatric disorders
I’ve got big hands!
Most of the production engines still use tumble flow combustion

For reference:
Nissan e-power with recuperation ~50%: https://www.nissan-global.com/EN/INNOVATION/TECHNOLOGY/ARCHI...

Mahle ~45% with pre-chamber: https://www.mobilityengineeringtech.com/component/content/ar...

Toyota dynamic force engines ~40% : https://www.thedrive.com/tech/18919/toyota-develops-worlds-m...

Toyota's newest engines claim even more: https://global.toyota/en/newsroom/corporate/40850156.html

Honda hybrid ~40%: https://hondanews.com/en-US/honda-automobiles/releases/relea...

Startup Carnot engines claim 70% efficiency: https://carnotengines.com/technology/
They flagged my post here and are selectively deleting some of my replies like a Reddit mod
> The parties are far more similar than they are different.

That was true up until Obama's second term. At that point, the GOP decided it'd go great lengths to sabotage almost anything - from blocking SCOTUS nominations to completely shutting down the government. It got worse with Trump during his first term and now, it seems like the party is afraid of its leader and does not oppose even the most blatantly illegal measures.

To say they are "more similar than ever" is incomprehensible to me.
Why large companies struggle so much with design
Kids these days have the coolest toys
I’m surprised all the countries the US is trying to bully aren’t considering moving to the Euro as the reserve currency (even China might go along with this). It would be so damaging for the US they might actually understand they have been benefiting from a win-win situation since the end of the Second World War.
>If you are literally drawing so much from the aquifers that the city is collapsing into the ground, I think the water probably is mispriced.

Cool story. But every human needs water, and no data center needs water. Why should every person have to pay more to live just to prevent Amazon from breaking the world for a tiny increase in profits?
I don't disagree with the point being made but it should also be noted that React and Vue are both 11 years old.

Hell, even Meteor.js (anyone remember this one?) is still around and being updated.
this is basically what they are doing, but instead of charging actual money they are making visitors spin the CPU ideally in a proof of work problem, which has the same outcome from the crawlers perspective.
Out of curiosity I've just fired up an old dynamic Perl website of mine. Works! 20 years later. On my modern machine!
Desalination plants produce a lot of brine, which you need to dispose of. You can't just put it back in the sea without killing marine life. It's not a simple problem to solve.
I am building Toolhouse.ai and I've had headaches with Github actions but luckily I ask the AI to help out when I am trying to do something.
My biggest annoyance is that it's oddly hard to debug things without running it. Even the Github Actions syntax helper on VSCode isn't super helpful. I have recently discovered `act`[1] and I will be investing time to using it because it really * hopefully * makes a difference.

[1]https://github.com/nektos/act
I don’t believe that final towing capacity either after seeing the tear downs where the hitch is attached with aluminum instead of steel to the frame.
> it itself is not the cause in the sense that income levels directly cause housing prices to go up.

It quite literally is directly the cause. The price of real estate in an area is overwhelmingly defined by the productivity of the local area.

Productivity goes up → income goes up → real estate prices go up.
Compared to the rest of the western world, american identity bonds strongly with employment. It's just an unfortunate fact. People find more spiritual grounding with their job than anywhere else. This is just personal anecdata to me but with the eradication of community/third places, people probably look to employment as something to at least do to past the time rather than rot/be lonely.
Hell, the fog light body panels on my partner's Audi Q5 was press-fit. We found out it was held in with a couple plastic tabs after it went missing (presumed stolen) and we had to replace it.

Even better, should it ever fly off, the plastic covering would do less damage than the Cybertruck's heavy steel body panels.
I think "web fundamentals" here might mean DOM manipulation, browser-native APIs, default form inputs. Stuff like <input type=date> and document.querySelector() and appendChild(), which are often abstracted over or replaced with frameworks.
I will say -- a higher-end bot detection service should provide paper trails on the block actions they take (this may not be available for freemium tiers, depending on the vendor).

But to your point, the real kicker is the "many sites aren't going to get feedback from the real people they've blocked" since those tools inherently decided that the traffic was not human. You start getting into Westworld "doesn't look like anything to me" territory.
Hot water tank heated by electricity and powering on at noon is flattening curve. You can say hot water tanks are cheapest, simplest and fastest deployed energy storage device.

Solar + hot water tank can provide any house in US with 100% solar hot water (from PV!) for 80% of time, remaining 20 % of time you can have 10-99% solar heated water.

So we should focus on saying to people that if they buy solar and add electric heating element to hot water tank, then PV system will pay itself much sooner and their batteries will last longer. Becasue it is known and predictable load, you need hot water every day. And hot water is order of magnitude more energy then TV, lighting...

By lowering household usage like this we can make energy transition faster, cheaper.

Also proper construction - house heated only 10 days in a year - https://www.youtube.com/watch?v=5KHScgjTJtE
You mean why is nobody making arrangements to put their own server into thousands and thousands of ISP datacenters?
AlexNet Source Code Released
> California is rather like Saudi Arabia.

Perhaps the key insight required to explain the 20th century.

It has the force of truth: now that I see it put so simply, I struggle to understand why no one has been able to do so before.
If you don't want others to use your data, perhaps you should have kept it private?
It's incorrect to think of Canada as being "cornered" here nor having "nothing to lose".

It's the US that's isolating itself. Canada isn't 'cornered'. It has the entire rest of the world to talk to and make deals with.

It has everything to lose by continuing to rely on the US, which is why you're seeing such a hard pivot toward Europe and Asia.
Having worked at a few, I can confidently say that the environment is just not conducive for good design thinking, solid polished execution and close collaboration with PMs and Engineering. Active participation outside of your scope is discouraged, filing bugs and getting them fixed is hard, rapid experimentation is met with so much friction and the average day is filled with so many meetings and catchups that you're left with no creative energy to think deeply about anything.
Keep Circulating the Tapes
Who started as a wire operator and rose from there. I don't think "she was a VP" has the implications that you seem to be giving it.
Your observation about how sci-fi trappings are the crack in the armour of techies and generally the modern subject are true but I still find the general disimissal of such activities as pointless as any crackpots musings unfair. Sure, Rationalists have a lot of crackpots in their midst and are generally a hard to defend bunch but falsifiable or not, I think there's value in proposing forms and colors of the unknown unknowns or the unknowables.

Paperclip maximizers may never come to be but what do you know, smart machines may upend the world order in Bostrom's lifetime. I'm not very familiar with his work and the amount of rigour that went to it but I generally expect we'll regret some of the consequences of this technology.
Plex just works, it's not weird at all. Also, I prefer proprietary software. It pays my bills.
Pump.co (YC S22) Is Hiring
Show HN: Hyperbrowser MCP Server – Connect AI agents to the web through browsers
Hi HN! Excited to share our MCP Server at Hyperbrowser - something we’ve been working on for a few days. We think it’s a pretty neat way to connect LLMs and IDEs like Cursor / Windsurf to the internet.

Our MCP server exposes seven tools for data collection and browsing:

1. `scrape_webpage` - Extract formatted (markdown, screenshot etc) content from any webpage

2. `crawl_webpages` - Navigate through multiple linked pages and extract LLM-friendly formatted content

3. `extract_structured_data` - Convert messy HTML into structured JSON

4. `search_with_bing` - Query the web and get results with Bing search

5. `browser_use_agent` - Fast, lightweight browser automation with the Browser Use agent

6. `openai_computer_use_agent` - General-purpose automation using OpenAI’s CUA model

7. `claude_computer_use_agent` - Complex browser tasks using Claude computer use

You can connect the server to Cursor, Windsurf, Claude desktop, and any other MCP clients with this command `npx -y hyperbrowser-mcp` and a Hyperbrowser API key. We're running this on our cloud browser infrastructure that we've been developing for the past few months – it handles captchas, proxies, and stealth browsing automatically.

Some fun things you can do with it: (1) deep research with claude desktop, (2) summarizing the latest HN posts, (3) creating full applications from short gists in Cursor, (3) automating code review in cursor, (4) generating llms.txt for any website with windsurf, (5) ordering sushi from windsurf (admittedly, this is just for fun - probably not actually going to do this myself).

We're building this server in the open and would love feedback from anyone building agents or working with web automation. If you find bugs or have feature requests, please let us know! One big issue with MCPs in general is that the installation UX sucks and auth credentials have to be hardcoded. We don’t have a solution to this right now but Anthropic seems to be working on something here so excited for that to come out. Love to hear any other complaints / thoughts you have about the server itself, Hyperbrowser, or the installation experience.

You can check us out at https://hyperbrowser.ai or check out the source code at https://github.com/hyperbrowserai/mcp
I added this functionality already some time ago in my Claudine agent:

https://github.com/xemantic/claudine/

It costed roughly 30 lines of code:
https://github.com/xemantic/claudine/blob/main/src/commonMai...
I wonder what you think of components. Back in the day it was heresy to mix css html and js. Everything was separated. Nowadays a component mixes them all.

In a way, it is exactly the example opposite of what you mention.
Are you interested in hearing from the perspective of a trans person who mostly doesn't agree with the person you've been replying to, but does feel there's gaps in your perspective here?

I ask this way especially because I don't know if you'll actually see this since I see one of the comments is flagged, and given how it's been most of a day already.
C++14 minimum is the standard
Yeah, but did those other articles feature the "rapid unplanned disassembly" gem? ;)
Next-generation audio models in the API
I'd gladly swap out any piece of tooling if it's written in JavaScript.
It seems everyone is part of the "Not American Treaty Organization".
What needs to happen is all job posting need to have a salary range. If, after so many months of trying to fill a position and it can't be filled, the company can utilize an H1B visa to fill the position, and the pay must be in that salary range. That would go a long way to resolve H1B abuse, and make it easier for US citizens to get tech jobs.
VanillaJS is a worse solution. When the JS framework benchmark first came out, VanillaJS was the fastest. After some of the vdom frameworks came out (especially InfernoJS), VanillaJS was slower.

How did they make VanillaJS faster? They studied the output code paths of InfernoJS and copied them. Each time InfernoJS would release new, faster versions, they'd backport those optimizations into the VanillaJS. Then SolidJS and Svelte came out and it copied them.

By the time it was done, the VanillaJS code was fast, but not very readable and definitely NOT the type of code a human would write. Additionally, each new piece being hand-written means each is a brand new chance to miss little implementation details that lead to subtle bugs and memory leaks. As your site grows, you'll also develop bugs from accidentally stomping on someone else's piece of the DOM unless you add all the overhead/complexity of shadow DOM.

pReact (or something similar if it exists) is a much better type of solution IMO. Here's a link to the whole source code minified.

https://esm.sh/preact@10.26.4/es2022/preact.mjs

It's not even a whole page on my laptop screen, but it will be faster than an average dev's VanillaJS code 95% of the time. It won't have those potential implementation bugs. It will scale to many components and devs effortlessly. It also provides clean, tested ways to add other features your project may need in safe ways.
I couldn't agree more, really. My whole career points to this as the absolute correct advice in CI.
RPC, not REST
Yeah, fair point. Although I think the only uniqueness is commits here, tarballs generated from branches and tags are ultimately the same as the ones generated by the commit that those reference. But I still agree with your overall point.
There's a lot of crops that are grown in CA that are not native to the area, and require a lot of water to be viable in that area. Trying to grow a crop native to monsoon areas in a dry area is just unsane.
> more oxygen than expected is created in young galaxies

Or we have fundamental errors in measuring distances and ages of things which is leading to these unexpected observations.
> How long until scrapers start hammering Mastodon servers?

Mastodon has AUTHORIZED_FETCH and DISALLOW_UNAUTHENTICATED_API_ACCESS which would at least stop these very naive scrapers from getting any data. Smarter scrapers could actually pretend to speak enough ActivityPub to scrape servers, though.
Thanks. Great hint!
Helion hasn't released details, but they imply they'd be much cheaper. At this point I can't disprove that, as their scheme does do away entirely with turbines and generators and could have much lower cooling requirements.
The title is click-baity, but the information is interesting.
I agree with the article. Maybe businesses are trying to protect themselves, but as a user, mandatory 2FA reduces the level of security I can achieve for myself.

Because security is not just confidentiality, it's also availability: the "Security CIA Triad" is Confidentiality, Integrity, and Availability.

If I can lose access (availability) to my online account by losing some physical item (e.g. lost cell phone), or if some third party can prevent me from accessing my 2FA (e.g. banned from my email provider by DMCA takedown request), then I have my availability, and hence overall security is at risk.

Additionally, requiring a phone number for online services means that the confidentiality of my identity is reduced. It becomes impossible to be anonymous. For instance, you can't use Signal messenger without a phone number, so there's a chance your identity can be leaked.
Well if Trump is looking for a reason to invade, he’ll have one he can promote. I don’t agree with it it, but he can say, “they’re cutting us off from our people!” Then he’ll invade BC to form a contiguous border to all our territories.

Hell based on the representatives going to DC to discuss making Alberta a state, he’ll probably gin up even more support.
I can't really fault them too much for hopping on the latest bandwagon, if their software is general enough at running workflows for it to fit.

They do seem to have a nice "quickstart for CI" they haven't abandoned, yet: https://docs.dagger.io/ci/quickstart

(As much as I personally like working with CI and build systems, it's true there's not a ton of money in it!)
The worst thing is that it's a cultural aspect. This deprecation and breaking stuff hell is a result of millions of micro-choices. "Why not rename MultiselectDropdown into MultiSelectButtonDropdown! And maybe replace the API of that component to a completely new one! Sounds like a cool idea!". Thousands of person-hours are spent daily for fixing results of such 'extremely important'™ breaking changes.

There is simply no culture of understanding the staggering costs of breaking APIs. This is especially frustrating after working for a decade with Go, that has backwards compatibility promise. Which somehow affects Go library developers stance on compaitbility and breaking things. The code written 10 years ago perfectly compiles and work on latest Go version, and it's such a wonderful experience.

One of the ways of escaping this JS/web hell for me was switching to Flutter. It worked great, most of the web-stack accidental complexity was happily forgotten. But this culture of "breaking package is fine" creeps in into Dart ecosystem as well, and it's annoying as hell.
This dynamic isn’t really good. I understand Canada didn’t start it, but I really don’t like these dynamics.
Sounds plausible, but most of those concerns have probably been addressed at this point between the leaps and bounds CSS has made with regards to layout, plus the security work that’s gone into iframes?
Non-Consensual Consent: The Performance of Choice in a Coercive World
This article introduces the concept of "non-consensual consent" – a pervasive societal mechanism where people are forced to perform enthusiasm and voluntary participation while having no meaningful alternatives. It's the inverse of "consensual non-consent" in BDSM, where people actually have freedom but pretend they don't. In everyday life, we constantly pretend we've freely chosen arrangements we had no hand in creating.
From job interviews (where we feign passion for work we need to survive), to parent-child relationships (where children must pretend gratitude for arrangements they never chose), to citizenship (where we act as if we consented to laws preceding our birth), this pattern appears throughout society. The article examines how this illusion is maintained through language, psychological mechanisms, and institutional enforcement, with examples ranging from sex work to toddler choice techniques.
I explore how existence itself represents the ultimate non-consensual arrangement, and how acknowledging these dynamics could lead to greater compassion and more honest social structures, even within practical constraints that make complete transformation difficult.
> in feature preview for all paid Claude users in the United States. Support for users on our free plan and more countries is coming soon

US only
Yes, I find math problems that depend on base 10 to be unsatisfying because they rely on arbitrary cultural factors of how we represent numbers. "Real" mathematics should be universal, rather than just solving a puzzle.

Of course, such a problem could yield deep insight into number theory blah blah blah, but it's unlikely.
Our human relationships are like roads and rivers to other cities. Facebook, Twitter, and their ilk dare set up tollbooths and style themselves turnpikes. High time we abandon them.

Leave, also on grounds of integrity.
One other thing that hasn't been heavily talked about: What $/share on TSLA will trigger margin calls on the massive loans that Musk took out collateralized by his TSLA stock. Once those get triggered, the snowball effect of market sales by the loan holders will accelerate the downward price trajectory.
Excited to see this. I've really been enjoying Claude. It feels like a different, more creative flavor of experience than GPT. I use Claude a lot for dialogues and exploring ideas, like a conversational partner. Having web access will add an interesting dimension to this.
Guatemala scraps plan for compulsory car insurance after protests
Oooohhh!!! Back in the day I had an "opportunity" to implement a virtual CDU interface, even re-created that font to do it. It talked to a real FMC (and later anything on the ARINC 629 bus). Good times :)
Its a sliding scale: there are definitely a number of projects out there claiming to be self sovereign identity solutions while pretty much creating new centralized future honeypots for potential breaches. Since the map also has information about tech stacks used by each project, the users can form their own opinions on a case by case basis.

Since this data will be released under CC BY 4.0 after the current public beta quality assurance, perhaps in the future the dataset will serve as a starting point for the SSI community to explore exactly those questions.

(I was also working on this project with lrock.)
Simple Uniform Color Space (2024)
It was also underestimation of China. Outright chauvinism there.
Hehe, just participating in POSSE :) Funnily enough the story you're linking to quotes me with pictures of a story I wrote (https://sethmlarson.dev/slop-security-reports) about LLM-generated reports to open source projects.
> While the old API expected that the shared object is not used directly, the API made it possible which led to undefined behaviour, typically producing a data race.

- C++ is insecure, don't use it
[C++ fixes a hole]
- C++ always deprecates the easy APIs
[Stanley face]
> Isn't that just politics? Pick a president, or a candidate, and you'll find examples of them lying to appeal to voters.

Actively misrepresenting reality when holding public office should be a criminal offense. If a CEO can't get away with that, why should a politician (or any government officer on any function) can?

When a president (or his lead henchman) say plain lies (such as that Canada was always meant to be a state) he's doing irreparable damage to the very fabric of democracy.

We discovered during Obama's first (or second) term how much of your democracy is held together by decorum, and how far will people go without fear of being held accountable (looking at Mitch McConnell blocking a perfectly reasonable SCOTUS nomination).
There is no way we are alone in this universe, what would really be a big deal though is if there are somehow able to traverse light years to reach us.