MurphyA/hacker-news huggingface dataset:
by GuB-42 | 2025-04-30 12:52:04+00:00
I don't know how it is done in the US, but I definitely learned about cars at school. Including:

- Lessons about road safety (causes of accidents, number of deaths, etc...)

- In elementary school, navigating the roads as a pedestrian or cyclist. Including going outside and crossing roads.

- In secondary school, basic information about traffic law, road signs, and information related to light motor vehicles (mopeds, ...)

- Though I didn't do it personally, some school had a class at a practice track, using pedal cars to learn about things like right of way

So while we didn't do actual driving, probably for economic and liability reasons, it is definitely part of the curriculum.
Show HN: Malai – Share your dev server (and more) over P2P
by amitu | 2025-04-30 12:52:05+00:00
We built Malai to make it dead simple to share your local development server over peer-to-peer, without setting up tunnels, dealing with firewalls, or relying on cloud services.

With one command, you can expose a local HTTP or TCP (coming soon) service to the world.

It's built on the iroh P2P stack, and works out of the box with end-to-end encryption and zero config.

$ malai http 3000 --public Malai: Sharing http://127.0.0.1:3000 at https://pubqaksutn9im0ncln2bki3i8diekh3sr4vp94o2cg1agjrb8dhg.kulfi.site To avoid the public proxy, run your own with: `malai http-bridge` Or use: `malai browse kulfi://pubqaksutn9im0ncln2bki3i8diekh3sr4vp94o2cg1agjrb8dhg`

This shares http://localhost:3000/ over a secure URL. No signup, no accounts, and you can self-host your own http bridge if you want.

It’s open-source, and we’re working on native SSH support, sharing folders and, fine-grained access control next.

GitHub: https://github.com/kulfi-project/kulfi (star us!)

Would love feedback, questions, or ideas — thanks!
by status_quo69 | 2025-04-30 12:52:06+00:00
https://pmc.ncbi.nlm.nih.gov/articles/PMC2925001/

Not everyone has impeccable brushing habits and reducing cavities is a net benefit to public health like sanitation departments. I would be more interested to see a source as to why you think there's no benefit to fluorinated water when there are studies that are a quick search away for fluorinated water.
by paulryanrogers | 2025-04-30 12:52:34+00:00
Sure. Fine. It's still so reductive as to be nearly useless. Try living in low tax, libertarian havens. There isn't much social mobility. You're born into wealth or you're not. Money and power flow up the (very short) pyramid forever.

One must tax the rich heavily because otherwise their money will just snowball until there's little left for anyone else. Cute phrases too often reinforce that reality.
by anovikov | 2025-04-30 12:53:10+00:00
It's quite natural that if economy contracts, prices go down. It happens (almost) all of the time - the only big exception was 1973-1979 because of Arab oil embargo - only time when GDP was falling AND prices rising faster than usual. Every other recession was accompanied with falling prices, or at the very least, falling inflation. That's why fiat money exists - to prevent it from becoming a self-perpetuating vicious cycle.
by UncleMeat | 2025-04-30 12:53:47+00:00
IMO, the key thing that software engineers want to know with these numbers is "is there still an engineer involved." In my mind LLM powered autocomplete that generates a lot of code is just totally different from "PM says they want this feature and the AI generates the entire thing from scratch" in that one amplifies the capabilities of an engineer while the other replaces them.
by meowface | 2025-04-30 12:53:49+00:00
I also grew up without phones in schools but in my opinion the problem is phones (and laptops, frankly) in class. If a student isn't in class, I don't see why they can't use their phone to talk to people or browse websites or whatever.

If they're in class, then 99% chance it's distracting them from learning. If they're not, I think personal autonomy is a good rule.
by eitland | 2025-04-30 12:54:00+00:00
Yep.

It is one of my life hacks: when I know I can/have to bake in the morning I find it much easier and much more enjoyable to get up at 0500.

(Before I used two alarms, one that could only be defused with a barcode next to the sink on the bathroom + an (un?)healthy dose of self discipline. Now I enjoy it.)
by amazingamazing | 2025-04-30 12:55:27+00:00
> reducing cavities is a net benefit to public health like sanitation departments

what is the connection between reducing cavities and sanitation departments? cavities are not communicable.

Also, the paper you linked is my point. there's no actual benefit of ingestion. the effect is purely incidental. it's more effective to apply fluoride to the teeth. nowhere does it actually explain that drinking it is what is beneficial. the difference in the incidence of caries is because by fluoridating the water it obviously will touch teeth, which has well known positive effects.

the main conclusion of the paper is what everyone should hopefully know already - brush your teeth regularly with fluoride toothpaste.

out of curiosity, would you be OK with vitamins being added to the water? most people are deficient in many.
by constantcrying | 2025-04-30 12:55:45+00:00
>Was that not offered at your school?

I think it would have been theoretically possible, but obviously logistically difficult as I would have had to skip multiple classes in other fields to attend.

It's also not like I was particularly interested in mathematics at that point in my life. I essentially chose my field of study based on what I had the best grades in. Only during my studies, when the material actually became difficult, I started to be interested and engaged in the subject.
by rapind | 2025-04-30 12:55:48+00:00
Well I don’t live in or operate a business in the EU and none of my customers are in the EU.

I did start looking into it out of curiosity, but TBH it wasn’t obvious what I needed to do, if anything.

I doubt most Europeans know much about Canada’s data protection laws either, and it would be insane for me to expect them to.
by FrankWilhoit | 2025-04-30 12:56:10+00:00
It is worse than that. The relational algebra is a line encoding. Just as raw bits cannot be stored on magnetic media or transmitted over a wire as they are found, but only after undergoing translation in order to adapt to the physical properties of the medium, so raw data requires extensive transformation, less in order to be stored than in order to be retrieved. The relational algebra is one of the great works of the human mind, but it is analogous to a Layer-1 protocol. The great mistake has been to try to force it upwards into Layers 5, 6, 7, and 7++, rather than find appropriate information-architectural analogues for those layers. Even Martin seems to say that it is Layer 6. The problem is much deeper than that.
by acdha | 2025-04-30 12:56:11+00:00
Lower turnout for Democrats, not Trump. Most of the stories about some demographic skewing right in 2024 are exaggerating the trend because most of those people voted for him in 2020, too, but many Biden voters stayed home.

(I’m not saying that nobody changed their vote, only that looking at percentage point changes distorts the view unless you factor in disproportionate no-show rates.)
by duxup | 2025-04-30 12:56:37+00:00
I'm a little surprised by how much lag there has been, but I suspect a lot of organizations where holding out for some form of "maybe he will change his mind", but as it is Trump and his own people aren't even on the same page about IF they're even negotiating with China or not...

The mantra of some folks response to his more reckless statements has always been "it's just talk", but it seems to not be talk.
Show HN: Fermi Chain. A Wordle-style game for order-of-magnitude thinking
by andrewrn | 2025-04-30 12:56:40+00:00
A couple weeks ago I posted a Fermi estimation game (https://news.ycombinator.com/item?id=43632278) I made it the hope that it would eventually help me become a lot more inclined to make these estimates during everyday life.

Just shipped a v2. It's more open-ended, closer to the spirit of true Fermi estimation, and a lot more mobile friendly. Would love any/all feedback!
by zx90 | 2025-04-30 12:56:44+00:00
I saw this in the Netherlands: Chromebooks with which the children did their research online, submitted their homework online, got them graded online, organized their workgroups, schedules and meetings online ...

Actually 
 they were learnig vital skills like Agile Sprint management! (I don't know if they ever physically met for standup meeetings)
by somenameforme | 2025-04-30 12:56:59+00:00
Using "the machinery of the state to force private enterprise" is a rather hyperbolic way of describing a phone call. I do agree in general that the government should be much more strongly separated from private enterprise than it is, but a phone call to exert pressure is a ridiculously low standard of governmental pressure, not even just objectively but also what we've seen over the past several years in completely systemic practice.
by austin-cheney | 2025-04-30 12:57:14+00:00
It will almost certainly contract more significantly into the second quarter as well. Many businesses remain reliant upon goods from China and are taken a massive financial hit on purchases now, but they are also waiting for the trade war to cool off before making future purchases. That will create a demand rush once the tariffs cool down and if they don't cool down these businesses will continue to have the same financial troubles but will also have inventory problems too.

In short, it must get worse before it can get better irrespective of what happens next or when.
by 1oooqooq | 2025-04-30 12:57:17+00:00
it probably don't make a big difference even in your case.

in the water system quantities and peer reviewed studies dosages, the psychological impacts are more real than iodine absorption.

flouride is not added today for teeth health (distributing mouth wash would do a better job) but it helps keep the water good for drinking, together with stuff like chlorine, which change by region.

... the real reason here is: it's as divisive and harder to reach an informed conclusion either way, just like abortion. oh American politics.
by cbeach | 2025-04-30 12:57:27+00:00
ChatGPT isn't the only online platform that is trained by user feedback (e.g. "likes").

I suspect sycophancy is a problem across all social networks that have a feedback mechanism, and this might be problematic in similar ways.

If people are confused about their identity, for example - feeling slightly delusional, would online social media "affirm" their confused identity, or would it help steer them back to the true identity? If people prefer to be affirmed than challenged, and social media gives them what they want, then perhaps this would explain a few social trends over the last decade or so.
by sorcerer-mar | 2025-04-30 12:58:00+00:00
Again: no.

Easiest way to explain is to correct your second paragraph:

> [With or] without Chevron, regulators have to stay within the bounds of the mandate clearly legally granted to them by Congress. With Chevron, they could step far beyond [my interpretation of] those bounds, so long as [a court found the regulator's interpretation was reasonable].

Without Chevron, even if the agency's interpretation is reasonable, the court can just come up with their own interpretation in place of it. This effectively destroys regulators' ability to make rules across broader scopes of scenarios than the ones defined explicitly in legislation (Chemical X != Chemical X.1) or across broader jurisdictions than the ones tested in court (Chemical X can rather easily be disallowed in District 2, allowed in District 5 just based on different judges' interpretations of the specific cases before them, totally divorced from the scientific basis for the ban on the chemical itself).

You seem to be drawing a distinction between whether their interpretation is reasonable versus whether a "reasonable argument could be made" that their interpretation is reasonable. The latter does not exist. The courts only test the former.

You can read how the Chevron test was applied to remove the eviction moratorium because, in fact, it's not up to the regulator to decide themselves. Their interpretation is actually reviewable by the court and will be struck down if found to be unreasonable [1]

> the end of Chevron has absolutely 0 impact on the ability of a regulator under the clear mandate to 'ban unsafe plastics' from being able to 'ban unsafe plastics.'

Lol, if this were true then not one industrial group would care if Chevron stood for eternity. But in fact they're salivating over this decision.

Care to share your theory for why that is?

[1]: https://clearinghouse.net/doc/112509/
by hundreddaysoff | 2025-04-30 12:58:49+00:00
I think the theory is like this:

1. new 30% tax

2. people stop buying so many goods due to (1)

3. due to lack of demand, our shipping industry seizes up and goods stop flowing, at least till (1) goes away

My main source for that theory is https://medium.com/@ryan79z28/im-a-twenty-year-truck-driver-...
by slashdev | 2025-04-30 12:59:19+00:00
In general yes, but in practice housing prices are down big in a lot of areas and still falling. Decisions happen at the margin, which means it's the marginal home owner who lost their job and has to sell, which pushes up supply at a time when demand is very weak - and that's your lower prices.

But it's very regional. Some areas will continue to see rising or stable prices.
by piva00 | 2025-04-30 12:59:32+00:00
It's not but it's designed to not be a new phenomenon. People are kept uneducated, ignorant about the world, how it works, why does it work, how society works, etc.

They are fed lies and don't have the capacity to understand they are lies. It's partly their fault (for the lack of curiosity) but it's also systemic, such a phenomenon can only happen in this scale if there are systems fostering, and procreating it.

Not saying your feelings are invalid, at all, they are absolutely understandable but it's also the reaction wanted by the ones keeping others uneducated: a larger divide, an ever increasing gap between the people most similar in society. It's divide-and-conquer, we waste our time and energy raging against folks who are purely ignorant, not against the ones keeping them ignorant and easily manipulated. We lost our temper trying to converse with them, which further increases the division.

Not here to give any solutions or tell you to change behaviours, applying in real life a more measured approach to reach these people is really fucking hard, frustrating, etc. but just saying that the reaction of "fuck'em" is exactly part of the strategy for continuing dividing and conquering us.
by mrunalchawda | 2025-04-30 12:59:32+00:00
Parameter manipulation involves tampering with URL parameters to retrieve information that would otherwise be unavailable to the user. Risks from exploitation depend upon what parameter is being modified, and the method by which it is submitted to the web application server. Parameter manipulation attacks can be used to achieve a number of objectives, including disclosure of files above the web root, extraction of information from a database and execution of arbitrary operating-system level commands. Recommendations include adopting secure programming techniques to ensure that only expected data is accepted by an application.
by acdha | 2025-04-30 12:59:47+00:00
Yes, we know that companies exist to make money. My point is simply that when they are willing to make a stronger legal commitment in a country famous for litigation it suggests that they have a higher confidence level in their system.

Think about it like this: company A says “our government product is military-grade. We have a 1 year warranty.” while company B also says their product is tough but offers a 5 year warranty. Which one do you think has better data supporting the durability of their product?
by PorterBHall | 2025-04-30 12:59:51+00:00
Before you wave this off as a “both sides are just as bad” issue, consider that the reason Amazon started down the path of displaying tariffs is likely due to a long-standing company value of putting the customer first. It makes sense that, as customers, we would want to see the impact of tariffs on our purchasing decisions. We would also want to see how much the sales tax is and how much the shipping cost is.

The problem for the Administration, however, is that they’ve been telling the American people the tariffs are not a tax on consumers, but rather a tax on foreign countries. This is a lie.

So we have a situation where the administration is intimidating Amazon into going against its own values so that it doesn’t expose the lie the Administration is still telling the American people.

I agree with you that Amazon‘s decision to bend to the administrations demand is just business. There are millions of dollars in military cloud infrastructure contracts that could be rescinded as retribution. And we see that the justice department is used by the president in ways that are far outside the norm.

But do you believe this administration is acting like any we’ve seen in living memory?
by pjmlp | 2025-04-30 12:59:53+00:00
Basically a collection of use-after-free, stack-based buffer overflow, type confusion, memory exhaustion, integer overflow, NULL pointer dereference, for the most part.

However we all know that the problem is that juniors and interns are the ones that get to write this code, a senior with proper education would never deliver these mistakes into production. /s
by crispyambulance | 2025-04-30 13:00:20+00:00
I certainly would like to see more American made products and manufacturing, unfortunately, making that happen is not just a matter of shuffling money around, capricious tariffs, and the president posturing for "deals" like a real-estate shyster.

Our current situation is the result of decades of deliberate greedy systematic outsourcing of everything that can be outsourced. It's our own dumb fault. And it will take decades to reverse it if it's even possible. It's not a "short-term" kind of thing.
by 9rx | 2025-04-30 13:00:29+00:00
An indication of what? It is impossible to know why a user pressed an arrow button. Any meaning the user may have wanted to convey remains their own private information.

All it can fundamentally serve is to act as an impoverished man's read receipt. And why would you want to give trolls that information? Fishing to find out if anyone is reading what they're posting is their whole game. Do not feed the trolls, as they say.
by 0_____0 | 2025-04-30 13:00:31+00:00
Supply and demand shocks echo for a while. How long did it take for toilet paper to be stocked normally during the pandemic in the US?

Edit to add:

Better example for me was the semiconductor industry. It was hard for years to design hardware because key ICs would disappear. You needed to buy the ICs the moment you thought you might use them, a form of stockpiling that had no winner - it's very expensive to buy stock that you potentially never use, and it deprives the rest of the market simultaneously.
by readthenotes1 | 2025-04-30 13:00:42+00:00
The article is paywalled, so I cannot see if it mentions the controversy over the effect of all the gold that was brought into the US in 1Q.

https://www.fisherinvestments.com/en-us/insights/market-comm...

Edit: here's a breakdown. It looks like imports (gold and tariff front running) were big negatives.

https://www.zerohedge.com/economics/us-q1-gdp-contracts-reco...
by JadeNB | 2025-04-30 13:00:42+00:00
> Why is this a “political” angle? If you believe its for a long term gain, then you believe in a certain economic theory that others may not believe. What does politics hace anything to do with that?

It's a political angle because it's to the responsible politicians' advantage to push that economic theory. I think the claim is not necessarily that economists who believe this theory are acting politically, but that their voices may be amplified by politicians for, let us say, less than scientific reasons.
by codingbot3000 | 2025-04-30 13:01:17+00:00
Sponsored by the fossil fuels industry... Also, Texans are not in a good position to lecture others about power network stability :-D

The official investigation is not over yet, but the head of the Spanish power network has already said that this cannot be related to renewables: https://www.lavanguardia.com/vida/20250430/10632617/beatriz-...
by lumost | 2025-04-30 13:01:23+00:00
The tax is 145% on Chinese imports. To preserve relative margins companies need to increase prices by 145%. Obviously, you are not going to buy the extra yard camera that was 100 dollars last week but will soon be 250.

The tariffs are effectively a 30-150% price increase on all retail products, along with some marginal price increase on all manufactured goods. Given the nearly assured recession, it is unclear how willing American consumers and corporations are to eat this tax. Some businesses will take it out of the margin, others will pass it along.
by roxolotl | 2025-04-30 13:01:42+00:00
It's not about thinking the government knows best it's about thinking the research knows best. Fluoride in water is widely considered one of the largest public health victories and study after study finds it largely safe and worth the potential trade offs.

The thing that's so wild about being anti fluoride is it's been going on for so long, it's possible your grandparents have never drank unfluoridated water at least in their adult lives, and at such scale that even if everything was a coordinated lie there would be very clear numbers showing problems.
by gooseus | 2025-04-30 13:01:51+00:00
Well, he drained the swamp, now he's doing what he does best, paving it over and building a soon-to-be-failed casino.

Say what you will about "the swamp" (not a big fan myself), but as a metaphor it kinda works since a swamp may be noxious and filled with unsavory swamp creatures... but it's still an ecosystem where competition and co-evolution amongst these swamp species in response to external environmental changes would still be expected.
by afpx | 2025-04-30 13:02:10+00:00
After talking to a bunch of Trump voters over the past 8 years, I have heard a common theme. They view the policies of the past 50 years, driven by the 'uniparty', as they say, leading to eminent catastrophic collapse. To them it's existential problem and they only have one choice.

Appealing to economists is the opposite of what they want, because economists look at macroeconomics efficiency which encourages globalism. They would rather be inefficient and hold on to their identity.
by dimava | 2025-04-30 13:02:18+00:00
Habr is a great example why you should force your site to be 'out of politics' if you want senseful discussions

Otherwise half of threads will be about Nazis by Godwin's law [0]

Like this one ¯\_(ツ)_/¯

[0] https://simple.wikipedia.org/wiki/Godwin%27s_law
by sambull | 2025-04-30 13:03:21+00:00
We won't ever see a 2008 style price drop again. My house was going for $399K before I bought it in 2011 for $199K @ <4%.

Unfortunately we got lucky, the big players in REO weren't ready to 'close' that many packages last time. My first devops role was at a company that was working with big players to make sure next time this exact scenario presented itself the big guys will be able to deploy their cash to gobble these things up.
by JoeAltmaier | 2025-04-30 13:03:26+00:00
'Dumb' is probably the right word. That's how a free market works - every actor works in their own interest. If you try to do something moral but it profits less, then you'll be competed to bankruptcy. Just how it works.

We want a more 'just' system, it requires regulation, so everybody is playing the same game.

Oh! We've deregulated. That's supposed to help make folks more profitable. But, whoops, it's the same playing field no matter the particular rules. So deregulation helps who? Big players, international players. Not you and me.