MurphyA/hacker-news huggingface dataset:
by MITSardine | 2026-01-30 02:05:28+00:00
Numerical simulation is a well explored field, we know how to do all sorts of things, the issues lie rather in the tooling and robustness of it all put together (from geometry to numerical results) than in conceptual barriers. Finite Differences have existed since the 1700's! What hadn't for the longest time, is the computational power to crunch billions of operations per simulation.

A nice thing about numerical simulation from first principles, is it innately supports arbitrary speed/precision, that's in fact the backbone of the mathematical analysis for why it works.

In some cases, as is the case for CFD, we're actually mathematically screwed because you just have to resolve the small scales to get the macro dynamics. So the standard remains a kind of hack, which is to introduce additional equations (turbulence models) that steer the dynamics in place of the small (unresolved) scales. We know how to do better though (DNS), but it costs an arm and a leg (like years to milenia on a super computer).
by calibas | 2026-01-30 02:06:54+00:00
> A human driver travelling at the same speed would have hit that child at exactly 17 mph, before their brain even registered that child was there.

Not sure where this is coming from, and it's directly contradicted by the article:

> Waymo said in its blog post that its “peer-reviewed model” shows a “fully attentive human driver in this same situation would have made contact with the pedestrian at approximately 14 mph.” The company did not release a specific analysis of this crash.
by smackeyacky | 2026-01-30 02:06:56+00:00
Think of the college experience as “that’s the way things are done here”. Then park it. It’s much more important to learn “that’s the way things are done here” including boring things like naming conventions or what the social/political landscape looks like to get code into production. If it’s a big place with formal practices and dedicated test teams or it’s a small place where you have to DIY those things. I would avoid as much as possible the crusty, grumbly devs who have been there forever and do nothing but complain, they’ll only hurt your career (I’ve been one of those people and was useless to everyone).

Every place does things differently and the best way to be productive is to follow along. It might be wrong or weird but chalk it up to experience, likely things are that way for a good reason.
by selcuka | 2026-01-30 02:07:31+00:00
For those who don't want to visit X:

Most people's mental model of Claude Code is that "it's just a TUI" but it should really be closer to "a small game engine".

For each frame our pipeline constructs a scene graph with React then
-> layouts elements
-> rasterizes them to a 2d screen
-> diffs that against the previous screen
-> finally uses the diff to generate ANSI sequences to draw

We have a ~16ms frame budget so we have roughly ~5ms to go from the React scene graph to ANSI written.
by simoncion | 2026-01-30 02:07:37+00:00
> As evidence that the applicants are, at every stage, correctly reacting to the situation: I have received positive responses (and, later, job offers) by applying to roles for which I am only mostly qualified...

Even fifteen years ago, I was getting advice from grizzled (programming industry) veterans of the form

If you match even half of what they're asking for, apply. Most of the time, those lists are put together by HR; and even if the list is completely accurate, they're never going to find anyone that meets all those requirements. The ad is asking for the *ideal* candidate. The smart companies know they're going to have to settle for less. Let *them* filter *you* out.

I've interviewed a fair bit, both in and out of Silicon Valley. I've had exactly two interviews where the folks hiring knew exactly what they wanted. All the others were like "Well, we need a programmer to do programmer stuff, IDK.".
by the_fall | 2026-01-30 02:07:58+00:00
Part of me wants to be wary. The useful life of industrial machinery such as CNC mills is much longer than the lifespan of websites, so locally-installed software you own is usually a better choice.

But another part of me realizes that everyone is using Fusion360, despite the fact they have a history of taking away features to force people to migrate to paid tiers. So it probably doesn't matter.
by antidamage | 2026-01-30 02:09:02+00:00
A couple of months ago I had to write a CDL-based triangulator to solve a use case where ear-clipping doesn't support the shapes we had.

We had no AI policy at the time so I had to read up on CDL and implement it by hand. The concept is straight-forward and I also targeted regularity as acceptance criteria for the mesher, but making it optimal was hard.

I ended up having to park it after the ticket ran out of time, but now we have an AI policy this was the first problem I gave it. What it put out was similar but better structured and more informed.

I worry a little that AI will stunt our problem-solving in 20-30 years, we still need new algorithms, even when ML is capable of producing a model that can do the same thing. But right now it's much better at the things we've already done than we are.
by MYEUHD | 2026-01-30 02:09:12+00:00
The graph just after the paragraph you quoted contradicts it :)

It says the number of Venezuelans living abroad was 700,000 in 2015, and it skyrocketed from that point onward.

What happened around that time?
- December 2014: Obama signed the first set of unilateral US sanctions on Venezuela
- March 2015: Obama issued an executive order classifying Venezuela as an "unusual and extraordinary threat to the national security of the United States"

Sure, there may have been slow migration before the sanctions, but it could have been explained by a multitude of reasons, not necessarily Chavismo.
For example, the frequent U.S.-backed riots and coups are surely a factor that encourages migration. People value security and stability.
by suzzer99 | 2026-01-30 02:09:48+00:00
I got the brunt of this when Amazon banned me from KDP for life over a complete nonsense hallucination by a fraud detection bot.

I thought at some point I'd get to talk to a human who would immediately say "Oh this is ridiculous, sorry." Nope. I just got passed around between either more bots or offshore customer support employees, with I assume a gigantic incentive to not go against the fraud detection bot, until I ran out of appeals.

One of the most soul-sucking experiences I've ever gone through. I can't imagine the toxic culture that produced that system.
by IG_Semmelweiss | 2026-01-30 02:09:49+00:00
Actually, things are heading in a good direction re:AI bloopers.

Courts of law have already found that AI interactions with customers are binding, even if said interactions are considered "bloopers" by the vendor[1]

[1] https://www.forbes.com/sites/marisagarcia/2024/02/19/what-ai...
by steve_adams_86 | 2026-01-30 02:10:31+00:00
Truly. The slicer is able to generate bugs I've never seen before, in around 6 years of printing with several slicers and firmwares. Cura, Flashprint, Orca, Prusa, using Marlin, Sailfish, Klipper. None of them produced the weird stuff I find with Bambu's pipeline.

When the bugs don't creep up it's absolutely incredible, though.
by swordsith | 2026-01-30 02:11:20+00:00
The problem with any patient to doctor or patient to Dr. Claude is that intentionally or not the patient will lie or misinterpret their condition, to the point of not describing it properly, risking getting a bad diagnosis or suggestion with a chatbot. In a classical medical scenario this can still happen but there is the chance that the medical professional could see through to the actual problem. There is a reason why even in real life it's sometimes best to get a second medical opinion.
by TacticalCoder | 2026-01-30 02:11:53+00:00
TFA for me gives the same link for the "Compressed using pngquant - 59,449 bytes" as the first image: "test1.png" and it's about 191 KiB.

I think it's a copy/paste error for replacing the link with test3.png instead of test1.png gives the correct file.

For the curious ones here are the result of compressing both losslessly with WEBP:

195558 test1.png
102750 test1.webp

59449 test3.png
38304 test3.webp

P.S: that picture is called a "test card": https://en.wikipedia.org/wiki/Test_card
by byearthithatius | 2026-01-30 02:12:25+00:00
This is wildly and seemingly unnecessarily chaotic and I am at a loss for its purpose. Probably just my own ignorance/laziness. But it does feel like its _trying_ to be hard to understand/navigate and overly random/weird. My curiosity got the best of me but I left feeling I just wasted 10 minutes.

EDIT: website is just an inside joke and not helpful. OS is real but also not helpful. https://www.reddit.com/r/plan9/comments/1mr6cyr/comment/n8xp...
by qingcharles | 2026-01-30 02:12:48+00:00
I switch routinely between Gemini 3 (my main), Claude, GPT, and sometimes Grok. If you came up with 100 random tasks, they would all come out about equal. The issue is some are better at logical issues, some are better at creative writing, etc. If it's something creative I usually drop it in all 4 and combine the best bits of each.

(I also use Deep Think on Gemini too, and to me, on programming tasks, it's not really worth the money)
by wat10000 | 2026-01-30 02:14:00+00:00
When walking along a busy street facing traffic, I like to play a game of "who's using a phone?" I sometimes score in excess of 50% of drivers texting or otherwise manipulating a phone instead of actually driving.

It's amazing how much nonsense we let slide with human drivers, and then get uptight about with anything else. You see the same attitude with bicycles. Cars run stop signs and red lights all day long and nobody bats an eye, but a cyclist does it and suddenly they're a menace.
by tansey | 2026-01-30 02:14:16+00:00
Somebody has to pay for the trial. Drugs are expensive and the amount needed to dose a single person is orders of magnitude more than mice. So who funds the study?

If it's the government or philanthropic fund, you have to put in a grant and show that it's competitive in terms of preliminary results etc.

If it's the drug companies, you have to deal with lots of complicated things with combination therapies. Drug companies don't like their drug paired with other drugs that aren't in their portfolio. They also need to see a way to make a profit on it, which means they need to evaluate whether this is the most likely successful trial, assess bang for buck etc.

If you want to go compassionate use, then you need to get the pharma to donate the drugs or insurance to cover it. This is spain, so I guess insurance is just the government since they have universal healthcare. I have no idea how that works but I am guessing it doesn't move fast.
by stevage | 2026-01-30 02:14:56+00:00
>the deluge and cacophony of notifications, emails, texts and phone calls I imagine we are all getting inundated with everyday with increasing entropy and volume.

I don't think I experience this?

My general strategy is to disable all notifications for Android apps except messaging. Phone is always on silent, so I don't get random calls.

I definitely get a lot of crap emails though - so many where the company creates a new marketing list and subscribes you to it. You can unsubscribe from that one specifically but not future ones.

Dropbox did a particularly spammy thing recently. In the same week they emailed me to say I was running out of space and I needed to buy more, and then also they emailed to say I had space that I wasn't making the most of, and wouldn't I like to try these other features?
by mzajc | 2026-01-30 02:15:51+00:00
Off the top of my head, because

- You're just moving your trust elsewhere, this time to a private corporation (whoever makes the CPU / TPM / other "trusted" component).

- This doesn't guarantee voter anonymity the way paper ballots do. Considering the analog hole and the complexity of computers, I can think of a billion ways a motivated and resourceful Mallory could to connect someone to their ballot.
by OhMeadhbh | 2026-01-30 02:16:18+00:00
How do you call / chat w/ AppleID support without logging in first?

Or rather... thank you for the suggestion. I'm going to dig into the docs on their web page and see if there's a way to contact support w/o having to log in first.

[edit: After a bit of digging around, as best I can tell, I have to log in with an AppleId before I can post a question in the support forums about how to reset my AppleId.]
by zdc1 | 2026-01-30 02:16:30+00:00
I basically just disable notifications for everything except apps that are useful and don't send promotional push notifications. It does mean that I need to "poll" for messages sent to my IG but if it's important I'll shift the conversation to another app.

I've always seen the main issue being people who "don't mind" or otherwise tolerate notifications because they're non-technical or don't realise how precious their attention is.

What are your top 5 apps that give you notifications? Seems strange to want less notifications but not know how to achieve this.
by pictureofabear | 2026-01-30 02:17:47+00:00
Yes! I have struggled with this concern for a while now.

I think that humans are the ultimate arbiters of quality for humans.

Nothing that is non-human can make that determination because anything that is not human (an LLM) is at best just a really good model. Since all models are necessarily wrong by definition, they can never get it right all the time. When determining what’s good for humans, it is only us that can figure that out.

I also came back to ZAMM when wrestling this question. There must be something there if we have all independently coming to similar conclusions.

As an aside, this is a true meme.
by gardener0001 | 2026-01-30 02:19:33+00:00
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
by cthalupa | 2026-01-30 02:20:06+00:00
> They’re tackling an armed man who attacked them.

The most aggressive thing Pretti does in this encounter is step in between the CBP agent and the fallen woman. Not once does he attack them.

> It’s very possible they might not be noticing every detail of what their colleagues are doing.

I'm not saying every officer that is dogpiling on him can see. I am saying the officer that is standing directly beside the one that disarms him, that is looking directly at the gun as it is removed from his possession saw it. He is looking right at it. He watches it happen.

And then he begins shooting.
by sandeepkd | 2026-01-30 02:20:55+00:00
Totally tangential to article, was browsing through the website UI - https://marginlab.ai/explorers/swe-bench-pro/ , the page gives impression that the language, category boxes are selectable. However they are not a dropdown. Not sure if it was intentional design by human or some smart code generation by Claude based on the design sketches.
by TaupeRanger | 2026-01-30 02:21:19+00:00
And they shouldn’t raise red flags. 99.9% of the symptoms any individual experiences in their life are not life threatening. If you got scans and interventions at every symptom, you’d end up in debt and with iatrogenic harms. Until we can get more accurate data from our bodies more easily, this is the reality. The good news: there’s so much room for innovation and progress in medicine.
by joecool1029 | 2026-01-30 02:22:12+00:00
> A friend told me once that his mouse stops working when someone is using the microwave. His room was on the backside of the kitchen.

I had to disable a 2.4ghz access point a couple years ago because a bathroom had a passive IR detector for the light switch that would never let the light shutoff. Because detecting IR is a pretty weak signal, I guess these switches amplify it. The issue is the circuit also acts as a weak antenna for 2.4ghz and thinks its seeing IR when it's actually just amplifying and seeing the 2.4ghz beacon signal.

RF gets weird. Something I've thought about over the years is how my FM radios at my old house would sometimes pick up aviation radio which should be AM well above a tuned FM frequency. Apparently this is due to the common design being a superheterodyne receiver which comes with a few quirks (such as causing some small interference itself when it's receiving).
by anonymous908213 | 2026-01-30 02:22:16+00:00
> (a) happened with a hypothetical hardware platform released after the PS2 but before the PS3, with specs lying in between the two

I would argue strongly that the weak hardware is why the PS2, and other old consoles, were so good, and that by improving the hardware you cannot replicate what they accomplished (which is why, indeed, newer consoles have never managed to be as iconic as older consoles). You can make an equally strong case that the Super Famicom is the best console of all time, with dozens of 10/10 games that stand the test of time. I think the limitations of the hardware played a pivotal role in both, as they demanded good stylistic decisions to create aesthetically appealing games with limited resources, and demanded a significant level of work into curating and optimizing the game design, because every aspect of the game consumed limited resources and therefore bad ideas had to be culled, leaving a well-polished remainder of the best ideas in a sort of Darwinian sense.

> (b) resulted in a sort of standardization in the industry like what happened to the IBM PC and its market of clones, with other vendors continuing to manufacture semi-compatible units

Unlike the PC market, the comprehensive list of "other vendors" is two entries long. Is it a more perfect world if Nintendo manufactures knockoff Playstations instead of its variety of unique consoles? I don't think so.
by pacoxu2025 | 2026-01-30 02:22:28+00:00
Kubernetes Pod startup time is a hidden tax on scalability, reliability, and cost.
This guide breaks Pod startup into four phases—API server, scheduling, node startup, and readiness—and shows where real latency comes from in production clusters.

Key takeaways include tuning API server and kubelet concurrency, avoiding over-complex scheduling rules, aggressively optimizing image pulls (pre-pulling, P2P distribution, lazy loading), fixing container runtime pathologies, and reducing application self-inflicted startup work. It also covers probe configuration pitfalls, CPU throttling during cold starts, and emerging techniques like checkpoint/restore for near-instant “warm” Pods.
by Zigurd | 2026-01-30 02:22:57+00:00
Falcon nine is the best rocket for accessing Earth orbit and sometimes beyond. Getting a rocket that wasn't designed for it to land the booster is an amazing accomplishment.

But Starship is questionable. It's supposed to be big and cheap. It sure is big. Choosing a direct path to upper stage reusability is risky. The risk is compounded by the fact that starship isn't leaving Earth or orbit without refueling. And the refueling job is massive. If any of: payload, reusability, launch cadence, in orbit refueling, fall short, none of it works except being a ridiculously large rocket for earth orbit missions.
by solid_fuel | 2026-01-30 02:23:13+00:00
What do you consider affordable?

I can google "maid service seattle" and see dozens of entries. The first one in the yelp list is available to book and will clean a 1000 - 1500 sq ft, 2 bed, 2 bath house for well under $200. There's even a decent discount if you book is as a weekly or biweekly service.

That feels pretty affordable? I know it's a scale, but minimum wage here is $21/hr now.

I have enough time to take care of my own space, but for comparison Comcast internet is well over $120/month for crappy speeds. I think in comparison a little more than that for 1 deep cleaning a month is reasonable.
by nneonneo | 2026-01-30 02:23:37+00:00
Ok interesting, but I wonder: if you load up a bacteria that kills other bacteria in your mouth, and it ends up in your gut, will it mess up the microbiome there? The weight gain studies suggest not (and I’m not even sure if S mutans is a major component of the gut microbiome), but it seems like the kind of thing that’d be worth checking for. (If there are already studies on this - happy to see them).

Also - if these things produce ethanol, even small amounts, are they going to be safe for children? The assumption here is that this strain would be passed mother-to-child, so this isn’t an unreasonable concern.
by jacquesm | 2026-01-30 02:23:55+00:00
The slicer even introduces bugs in things that were working perfectly in the software they ripped off.

For the A1 and P1S you're better off backporting the profile to PrusaSlicer or Orca.

And don't get me started on the network plug-in (the lack of transparency there makes me fairly suspicious that something is up) and the lack of directory structure support on the SD cards. Really, how could you mess it up.
by mikepurvis | 2026-01-30 02:24:35+00:00
In Waterloo Region I used to cycle through multiple intersections that were "upgraded" some years ago from conventional stoplights to roundabouts and imo it was a huge downgrade to my sense of safety. I went from having a clear right of way (hand signal, cross in the crosswalk) to feeling completely invisible to cars, essentially dashing across the road in the gaps in traffic as if I was jaywalking.

I could handle it as an adult just walking my bike but it would be a nightmare for someone pushing a stroller or dependent on a mobility device.
by kulahan | 2026-01-30 02:24:45+00:00
Because programmers probably think it'll be a similar field, but it's different. It has correct and incorrect ways of doing things, strongly enforced. You're not inventing new shit, you're reapplying old shit constantly. Old shit that works.

Many think writing software is engineering, but it couldn't be further from the truth.

edit: to clarify, trying to get people to realize the grass isn't always greener, and both sides are better off for it.