MurphyA/hacker-news huggingface dataset:
NoCheat: Students Can't Cheat Anymore
by Ahm_AK | 2026-01-07 18:52:26+00:00
I’m a teacher, and honestly, I’ve been struggling. My students keep sending me these "perfect" assignments thanks to AI, and it’s a nightmare. I can't realistically ban it, but I also can't give honest feedback because I don't know what’s actually their work anymore. It feels like the "learning" part of homework just disappeared overnight.

I’ve been using this platform called nocheat.io, and it’s exactly what we’ve been waiting for. I can create assignments or quizzes right inside the app, and the whole system is locked down. If a student tries to copy-paste, switch tabs, or close the window, they get locked out immediately. I get a notification, and they can’t keep going until I manually unlock it for them. It actually forces them to stay on task and do the thinking themselves.

The best part? There is actually an AI built into the platform, but it’s "bounded." It acts like a guide—it gives them hints, feedback, and Socratic nudges, but it’s hard-coded to never just hand over the full answer. There’s even a mandatory timer so they can't just "speed-run" a 30-minute essay in 2 minutes. It even handles math and has a built-in calculator if you want to enable it. It’s honestly a game-changer for academic integrity, and I really think schools are going to start jumping on this fast once they see how much control it gives back to the teacher.
by paradite | 2026-01-07 18:52:38+00:00
I was downvoted to oblivion for posting this comment.

https://news.ycombinator.com/item?id=42439059

But I'm merely telling the truth. The fact that people don't like it doesn't change the fact that software engineers are largely replaceable with AI now.

We are seeing the second order effects now that people using AI are not buying software products anymore, leading to layoff of software engineers.
by tsimionescu | 2026-01-07 18:52:40+00:00
Consuming cholesterol doesn't normally change the level of cholesterol in your bloodstream - it simply leads to your body producing less cholesterol. Unless you're consuming gigantic amounts, or have some problems with your cholesterol regulation, dietary cholesterol is completely safe. It's only if your blood work shows elevated cholesterol levels that you need to start paying attention to cholesterol intake. This is in fact very similar to what happens to blood sugar levels, in fact.
by notahacker | 2026-01-07 18:52:51+00:00
Seems unlikely the US had scores of boats lined up for a well-planned invasion which they chickened out of at the first sign of return fire and then "desperately" captured the enemy president some miles inland in a relatively bloodless operation instead.

A small detachment US troops of didn't succeed in taking some sort of secondary objective like taking out a coastguard station or comms node, maybe.
by marcosdumay | 2026-01-07 18:53:06+00:00
> They didn't outsource manufacturing, rely on foreign parties for critical tech, and rely on immigrants (legal or not) for both skilled and unskilled labor.

Outsourcing manufacturing is new. But you are wrong about the other two.

Why do you think fascists (and proto-fascists and the unrelated look-alikes) keep losing wars all through history?
by refulgentis | 2026-01-07 18:53:10+00:00
Smells like unnecessary sycophancy: I grep'd Adam in every comment and every single. one. is positive and phrased like this.

I grew up on this site, from 20 year old dropout waiter in Buffalo to 37 year old ex-Googler. One of the things I'm noticing me reacting to the last year or two is a "putting on a pedestal" effect that's unnecessary.
by overgard | 2026-01-07 18:53:16+00:00
Well, true on the blood sugar response, but you can also lower the blood sugar response by not eating high-glycemic-index foods in the first place. Or, you could eat resistant starches if you really want a starch. So I don't necessarily disagree with you, but unless you're living a very active lifestyle I think it'd be better to remove carbs than add fiber.
by ChrisArchitect | 2026-01-07 18:53:50+00:00
Some previously related discussion(s):

Roblox Requires Age Checks for Communication, Ushering in New Safety Standard

https://news.ycombinator.com/item?id=45985799

Roblox is a problem but it's a symptom of something worse

https://news.ycombinator.com/item?id=46047229
by IAmBroom | 2026-01-07 18:53:50+00:00
Multiple reasons:

1. A traditional compass is cheaper. They are so cheap they are built into the caps of ultra-cheap hiking sticks.

2. Traditional compasses don't need recharging.

3. Traditional compasses don't seem to be as easily fooled by stray EM noise. It could be the inertial dampening of the mass of the needle, but I've been in the woods where expensive electronic compasses misfired, but the old-fashioned one still worked just fine.

4. Dedicated devices have far lower usage hurdles. If I'm hiking, a glance at the top of my stick tells me the general (8-point) direction I'm going. An electronic compass at a minimum requires me to fish out a device and turn it on, or open an app.

5. If you aren't navigating by precise map measurements, all you really need is 8-point information (that is, "northwest" instead of 281 degrees). Needles in a circle are perfect for this; digital degrees are not.
by bdangubic | 2026-01-07 18:54:15+00:00
wasn't expecting to read that Microsoft is not getting new corporate customers but here we are, you learn something new every day :)

none of this is anecdotal, I make a living as contractor and in just past two years have worked on numerous moving-to-microsoft projects, Oracle to SQL Server, AWS to Azure, Sharepoint etc etc... I am not a fan of MSFT by any means but what you are writing makes absolutely no sense. You should read MSFT quarterly earnings reports and not read few anecdotal things people on HN write about MSFT. It is M7 for a reason and practically has no competition (which is why they are able to do shit like Windows 11 and Copilot and... people on HN might be bitching but it is just for entertainment purposes)
by mmh0000 | 2026-01-07 18:54:47+00:00
I really would like a new shell that wasn't based on a poorly designed programming language from the 1960s[1][2]

However, I need to know sh/bash well because they're the tools installed by default; in any "well-established" organization, getting approval to install a new shell will range from "12 to 24 months" to "impossible". And without that, I'm not going to put in the effort to learn a new tool that is only useful some of the time and requires massive context switching.

[1] https://en.wikipedia.org/wiki/ALGOL_68
[2] https://en.wikipedia.org/wiki/Bourne_shell#:~:text=Stephen%2...
by mapotofu | 2026-01-07 18:55:02+00:00
I wouldn’t reduce food to some stupid equational graphic. Instead I would work to try to regain trust by cracking the whip on these companies for once, whether it’s their prices, the quality of their products, their advertising, or all of the above. Our diets deserve more respect and that’s the reason RFK has an audience. He’s speaking to people who believe that. There can be better leaders than him, but at least he’s doing something!
by bluGill | 2026-01-07 18:55:02+00:00
Different strokes for different strokes. There is nothing wrong with how you use tabs, and nothing wrong with how others do. It is just different. The important part is that whoever can find things later that the saved for later, if the system works for you it is good. You don't even need to understand, since it is your/their personal system.

Now sometimes a different system is better. So there is nothing wrong with understanding - you might learn something that helps you. However it is optional if you are not aware of defects in what you are doing (but if you are aware of them...). Also technology marches on and so something better might come out in the future: keep an option mind.

The important part is to be slow to criticizing people who are different.
by zug_zug | 2026-01-07 18:55:11+00:00
This is just the time that we caught. Who knows how many more times it happened and wasn't caught?

> I guess the thing that I most don't get is it's now been 10 years since then, and I haven't seen any news about the link between sugar and CVD.

Perhaps this is more evidence that not everybody has been caught?

It's not like this is some isolated thing, like it's a documented fact that the food pyramid was shaped the way it was due to industry pressure.[1]

1 - Marion Nestle, Food Politics
by TacticalCoder | 2026-01-07 18:55:54+00:00
> It's great that westerners are exploring these things ...

> This is literally yoga and meditation practice and has been studied for at least a couple thousand years.

> Even if we exclude the modern invention of yoga as exercise in the 20th century, there are seated practices of releasing these tensions in the body.

You are very clearly opposing eastern meditation practice and science, saying science held westerners back but let me give an example...

I've got a tense spot somewhere, I do practice meditation since a long time and I definitely can relax myself using breathing techniques etc. That's great.

But one of my very best friend lost, 15 years ago, both kidneys and had a kidney transplanted from his mom (she was compatible and willing to give one). As to my wife, she suffers from an auto-immune disease: but thanks to medication she lives a normal life (and thankfully doesn't have a reduced life expectancy).

So my questions is simple: you talk about "thousands of years". Easterners had "thousands of years" and they can... Release tension in the body?

Shall we now have a talk about science and ask the inverse question: weren't easterners held back by their meditation practice while westerners invented: MRI, X-ray, antibiotics, insulin, kidney transplantation, heart transplantation, artificial heart, in vitro fecondation, polio vaccine, anesthesia, chemotherapy, stethoscope, microscope, ...

And that's just a tiny list. I could go on and on. Versus... Relaxing tension in the body?

I'm not exactly sure who's been held back by what here.
by codyb | 2026-01-07 18:56:01+00:00
I've heard an uptick in derogatory terms being thrown around recently and while unsurprising, it sure is sad.

Recent events...

- Went to a concert, an underage kid with a fake ID couldn't get a beer, turned to me and goes "Isn't this guy a f----"

Uh... well, he may be making your night less enjoyable, but I don't see why gay people have to catch strays cause of it...

"I don't think I'd call anyone that" was my response, and "it's okay to be gay" was a follow up

- My boss said something was retarded. I'm a bit wishy washy on the r-word myself as, while I'm friends with people with Down Syndrome and other maladies, it never occurred to me to relate the word to them (especially since they're generally really very nice people)

It's similar to how I never associated the word spaz with... I dunno what it is... multiple sclerosis or whatever, apparently that's a very common association in the UK, but I'd never heard of it (the association)

But now I've stopped using it entirely, although in this case I did not correct my boss (who I respect as a person and enjoy working for very much)

- One of my other friends called something "gay" recently

"Don't call things gay bro" was my response. As my mom explained to me in sixth grade "even though you don't really even have an idea what it means to be gay, when you say that negative things are gay, you're implying that being gay is negative, but gay people just are themselves and don't deserve that"

I became the "don't say gay kid" at school after that and I'm damned proud of it

All these losers trying to turn back the times to put gay people back in the closet give me "peaked in middle school" vibes, and it's sad to see that it's also slowly becoming normalized with people who I don't even think have that inclination or care to say prejudiced shit again too
by epistasis | 2026-01-07 18:56:07+00:00
Looks like it may be capped at 32 cores in that video, if they are hitting 25%-30% of a 96 core CPU?

Here's analysis of a prior LTT video showing 1/3 of cores at 100%, 1/3 of cores at 50%, and 1/3 idle cores:

https://www.youtube.com/watch?v=XqSCRZJl7S0

In any case, CS2 can take advantage of far more cores than most games.
by HarHarVeryFunny | 2026-01-07 18:56:12+00:00
There's certainly a difference between modern and ancient grain varieties, but OTOH whole grain bread is basically what fed at least the western world for the last 2000 years - bread was the center of the roman diet and also of the medieval diet, which seems more than long enough (~100 generations - evolution is fast) for this to be the natural "our bodies evolved for this" diet that we should be targeting!
by asveikau | 2026-01-07 18:56:23+00:00
I'm sorry about your mom.

The odor part may be nothing to worry about. When I was a child I noticed an "old lady smell" that many people have. I used to think they had terrible taste in perfume. As my mom got older and I observed her in life, I realized she was starting to smell that way without any effort, and did not before. I don't think she had particularly poor hygiene. I have no idea, but perhaps there is some biological reason for this, that older people produce distinct body odors from younger people.
by overgard | 2026-01-07 18:56:25+00:00
I don't think veganism is a societal problem.. but I do think it's a personal problem. The vegans I've known that have done it for a long period have had all sorts of weird health issues that could be attributed to malnutrition (if they actually had labs done, which they generally don't). To be a healthy vegan you generally have to take a lot of vitamins or eat an impractically high volume, which to me suggests it's a bad diet (health wise. Ethically, great!).
by devalexwells | 2026-01-07 18:56:35+00:00
How does their stewardship of a CSS library exempt them from being a valid company? The fact that the market is competitive alone isn't justification.

I agree that it's not obvious to me how or why Tailwind should turn a profit as a business, but there are examples of other similar companies turning profits, no?

I think of Motion (formerly framer motion) for example, which is primarily an animation library: https://motion.dev/
by deinonychus | 2026-01-07 18:56:52+00:00
anyway, i don't find anything here that stands out or is obviously against the consensus, other than recommending tallow as a cooking fat. i don't see any signs of seed oil extremism or sat fat trutherism otherwise. there's even this line about limiting sat fat:

> In general, saturated fat consumption should not exceed 10% of total daily calories. Significantly limiting highly processed foods will help meet this goal.
More high-quality research is needed to determine which types of dietary fats best support long-term health.
by sbarre | 2026-01-07 18:57:17+00:00
I think perhaps the nuance in the middle here is that for most projects, the quality that professional components bring is less important.

Internal tools and prototypes, both things that quality components can accelerate, have been strong use-cases for these component libraries, just as much as polished commercial customer-facing products.

And I bet volume-wise there's way more of the former than the latter.

So while I think most people who care about quality know you can't (yet) blindly use LLM output in your final product, it's completely ok for internal tools and prototyping.
by freemanjiang | 2026-01-07 18:57:18+00:00
Each moving arrow represents one real bike ride out of 291 million, and if you've ever taken a Citi Bike before, you are included in this massive visualization!

You can search for your ride using Cmd + K and your Citi Bike receipt, which should give you the time of your ride and start/end station.

Everything is open source: https://github.com/freemanjiang/bikemap

Some technical details:
- No backend! Processed data is stored in parquet files on a Cloudflare CDN, and queried directly by DuckDB WASM

- deck.gl w/ Mapbox for GPU-accelerated rendering of thousands of concurrent animated bikes

- Web Workers decode polyline routes and do as much precomputation as possible off the main thread

- Since only (start, end) station pairs are provided, routes are generated by querying OSRM for the shortest path between all 2,400+ station pairs
by imiric | 2026-01-07 18:57:21+00:00
> Third party managers don't hit the spot either.

I've been happy with Pinboard for many years now, which does just the bare essentials. There are integrations for most browsers, though I prefer using it externally via a small CLI client. This allows me to keep a local backup of my bookmarks in JSON, to filter them with fzf/rofi, and to use it with any browser. After all, I just need to quickly find a URL, and copy/paste it in the browser.

The service has had some issues over the years, leading to growing concerns over its stability and longevity. It hasn't affected me much personally, but I've wanted to replace it with a fully self-hosted solution for a long time now. With projects like ArchiveBox, linkding, etc., this is quite feasible, though I've been lazy with making the jump. My Pinboard renewal is coming up, and I think it might be time.
by tlavoie | 2026-01-07 18:57:32+00:00
Back in the stone age, I worked at 7-Eleven while in university. Nothing was really computerized at the store level then, even cameras were rare.

What was done all the time was a simple, templated, paper-based process that managers went through each month. I believe the gist of it was that it recorded sales for each shift in the month (7am-3pm, 3-11, 11-7), and who worked them. Some simple stats highlighted low sales correlated with employees, to point out who was likely entering smaller prices in the till and pocketing the difference. Now it's all bar-code scans of course, but it was a common problem at the time.
by alfonsodev | 2026-01-07 18:57:37+00:00
Thanks for sharing that experience, it means a lot.

Sometimes it feels like the health system is just about keeping you alive, and they don't dig enough in different posible root causes, they focus on treating the symptoms, specially with elderly.

> That would not have been hard

I understand the feeling, and it inspires me to look for a second opinion and someone more involved in finding a root cause. I'm sure in your case you did what you though it was best with the information you had, the reality is that the system does not invest in prevention and education of us patients and relatives. Knowing certain demographic is high risk should be somehow automated to raise flags when certain symptoms are mention even if they are in-passing mentioned as you said, because we as regular people are not educated to weight the importance of symptoms, and often doctors get defensive if you come with a theory.

The other day I was at the doctor, he was asking me many things, trying to figure out my stomach problems, I though I had a stomach flu, then really at the and by chance I mentioned I was at the dentist the week before and they gave me antibiotics for 7 days, it was only then with that small comment that I almost forget to say that the doctor could have the explanation, he said some antibiotics wipe out the gut microbiota, and it just gave me some probiotics and I was fine the day after, with a big improvement. I don't know how much time would have take me to recover if I would have forgotten about that detail.

When I think about it after the fact, duh! of course antibiotics kill gut bacteria, I heard that a million times in podcast, but I did not make the connection.
by pluralmonad | 2026-01-07 18:57:43+00:00
I'm not familiar with any form of intelligence that does not suffer from a bloated context. If you want to try and improve your workflow, a good place to start is using sub-agents so individual task implementations do not fill up your top level agents context. I used to regularly have to compact and clear, but since using sub-agents for most direct tasks, I hardly do anymore.
by majkinetor | 2026-01-07 18:58:35+00:00
That is not correct.

People lose fat on calorie restricted diet. How will you get to it, either by counting them or by improving metabolism or by changing insulin levels, is a different thing.

Vegan or keto diet can both be calorie restricted, as much as any macronutrient mixture. However, it doesn't mean its sustainable. If you are hungry all the time, you can stay on the diet for some time, but not forever. Since insulin is the primary storage hormone, reducing it will make you less fat (just look at type 1 diabetics). We now know that carbs are the highest promoters of insulin, that fat has 0 influence, and protein some. We have drugs like metformin or GLP-1 that brute force some of it and they are working.

So, we know that sugar is mostly bad and that fat and protein are not. Ofc, some fats are bad for other reasons (by promoting inflamation) but that has nothing to do with obesity.
by zahlman | 2026-01-07 18:58:42+00:00
> For me, SO is a proof that communities need a BDFL with a vision for how they should run

That was Jeff Atwood. Who said a lot of very interesting things about how the site was explicitly intended to differ from traditional forums where "perfectly good" questions are constantly asked.

> Answers were shot down because they weren’t phrased in the form of an MLA essay.

This is absurd and I can't think of anything remotely like this happening in practice. The opposite is true: popular questions attract dozens of redundant, low-quality answers that re-state things that were said many years ago, list two different options from two other different previous answers, list a subset of options from some previous answers, describe some personal experience that ultimately led to applying someone else's answer with a trivial modification for personal circumstances unrelated to the actual subject of the question, etc. etc.
by S_Bear | 2026-01-07 18:59:07+00:00
My favorite mobile game ad was for Jeep, which was 3 seconds of the word JEEP on a black background. My wife and I laugh about it, but we remember it. It was actually really effective in that regard.

My second favorite was for some pirate game, but the ads were basically the setup for an adult movie, with tons of hammy overacting. I thought they were so funny, I was really sad when they stopped.
by LogicFailsMe | 2026-01-07 18:59:08+00:00
Funded by an automation tax as proposed by Martin Ford. Not holding my breath on either count. We mustn't upset the 1,000 or so billionaires in this country in any way for they are wise and they are kind and only bad things will happen if we do.

But chin up, peasant, each and every one of us can dream of one day being a billionaire as well if only we act as wise and as kind as they do.
by orthecreedence | 2026-01-07 18:59:17+00:00
So fork and offer your better free version. Holy fuck. What's with this persistent attitude that open source creators should slave away for free forever?

Either you support an economy where everyone gets a meager living wage just for existing and then once that's established you can complain about people trying to make money off open source, or you say "capitalism as it exists is great" and swallow the fact that people who you don't pay don't work for you. Which is it?
by MBCook | 2026-01-07 18:59:39+00:00
It’s today’s 3D TVs. It’s something investors got all hyped up about that everybody “has to have“.

There is useful functionality there. Apple has had it for years, so have others. But at the time they weren’t calling it “AI“ because that wasn’t the cool word.

I also think most people associate AI with ChatGPT or other conversational things. And I’m not entirely sure I want that on my computer.

But some of the things Apple and others have done that aren’t conversational are very useful. Pervasive OCR on Windows and Mac is fantastic, for example. You could brand that as AI. But you don’t really need to no one cares if you do or not.