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Start all of your commands with a comma

https://rhodesmill.org/brandon/2009/commands-with-comma/
193•theblazehen•2d ago•56 comments

OpenCiv3: Open-source, cross-platform reimagining of Civilization III

https://openciv3.org/
679•klaussilveira•14h ago•203 comments

The Waymo World Model

https://waymo.com/blog/2026/02/the-waymo-world-model-a-new-frontier-for-autonomous-driving-simula...
954•xnx•20h ago•552 comments

How we made geo joins 400× faster with H3 indexes

https://floedb.ai/blog/how-we-made-geo-joins-400-faster-with-h3-indexes
125•matheusalmeida•2d ago•33 comments

Jeffrey Snover: "Welcome to the Room"

https://www.jsnover.com/blog/2026/02/01/welcome-to-the-room/
25•kaonwarb•3d ago•21 comments

Unseen Footage of Atari Battlezone Arcade Cabinet Production

https://arcadeblogger.com/2026/02/02/unseen-footage-of-atari-battlezone-cabinet-production/
62•videotopia•4d ago•2 comments

Show HN: Look Ma, No Linux: Shell, App Installer, Vi, Cc on ESP32-S3 / BreezyBox

https://github.com/valdanylchuk/breezydemo
235•isitcontent•15h ago•25 comments

Vocal Guide – belt sing without killing yourself

https://jesperordrup.github.io/vocal-guide/
39•jesperordrup•5h ago•17 comments

Monty: A minimal, secure Python interpreter written in Rust for use by AI

https://github.com/pydantic/monty
227•dmpetrov•15h ago•121 comments

Show HN: I spent 4 years building a UI design tool with only the features I use

https://vecti.com
332•vecti•17h ago•145 comments

Hackers (1995) Animated Experience

https://hackers-1995.vercel.app/
499•todsacerdoti•22h ago•243 comments

Sheldon Brown's Bicycle Technical Info

https://www.sheldonbrown.com/
384•ostacke•21h ago•96 comments

Microsoft open-sources LiteBox, a security-focused library OS

https://github.com/microsoft/litebox
360•aktau•21h ago•183 comments

Show HN: If you lose your memory, how to regain access to your computer?

https://eljojo.github.io/rememory/
292•eljojo•17h ago•182 comments

Where did all the starships go?

https://www.datawrapper.de/blog/science-fiction-decline
21•speckx•3d ago•10 comments

An Update on Heroku

https://www.heroku.com/blog/an-update-on-heroku/
413•lstoll•21h ago•279 comments

ga68, the GNU Algol 68 Compiler – FOSDEM 2026 [video]

https://fosdem.org/2026/schedule/event/PEXRTN-ga68-intro/
6•matt_d•3d ago•1 comments

Was Benoit Mandelbrot a hedgehog or a fox?

https://arxiv.org/abs/2602.01122
20•bikenaga•3d ago•10 comments

PC Floppy Copy Protection: Vault Prolok

https://martypc.blogspot.com/2024/09/pc-floppy-copy-protection-vault-prolok.html
66•kmm•5d ago•9 comments

Dark Alley Mathematics

https://blog.szczepan.org/blog/three-points/
93•quibono•4d ago•22 comments

How to effectively write quality code with AI

https://heidenstedt.org/posts/2026/how-to-effectively-write-quality-code-with-ai/
260•i5heu•17h ago•202 comments

Delimited Continuations vs. Lwt for Threads

https://mirageos.org/blog/delimcc-vs-lwt
33•romes•4d ago•3 comments

Female Asian Elephant Calf Born at the Smithsonian National Zoo

https://www.si.edu/newsdesk/releases/female-asian-elephant-calf-born-smithsonians-national-zoo-an...
38•gmays•10h ago•13 comments

I now assume that all ads on Apple news are scams

https://kirkville.com/i-now-assume-that-all-ads-on-apple-news-are-scams/
1073•cdrnsf•1d ago•459 comments

Introducing the Developer Knowledge API and MCP Server

https://developers.googleblog.com/introducing-the-developer-knowledge-api-and-mcp-server/
60•gfortaine•12h ago•26 comments

Understanding Neural Network, Visually

https://visualrambling.space/neural-network/
291•surprisetalk•3d ago•43 comments

I spent 5 years in DevOps – Solutions engineering gave me what I was missing

https://infisical.com/blog/devops-to-solutions-engineering
150•vmatsiiako•19h ago•71 comments

The AI boom is causing shortages everywhere else

https://www.washingtonpost.com/technology/2026/02/07/ai-spending-economy-shortages/
8•1vuio0pswjnm7•1h ago•0 comments

Why I Joined OpenAI

https://www.brendangregg.com/blog/2026-02-07/why-i-joined-openai.html
154•SerCe•10h ago•144 comments

Learning from context is harder than we thought

https://hy.tencent.com/research/100025?langVersion=en
187•limoce•3d ago•102 comments
Open in hackernews

Coursera’s Preview Mode

https://www.classcentral.com/report/coursera-preview-mode-paywall/
74•deepakkarki•6mo ago

Comments

DaveZale•6mo ago
is edX still free for auditing?
geodel•6mo ago
I haven't logged in edX in long time but as per this article it is no longer free.
phyzome•6mo ago
Only parts are paywalled, I think? Looks like it's specifically tests and such (graded assignments) that are affected.
redbluered•6mo ago
Which are where you learn.
phyzome•6mo ago
Depending on the subject and the person, but agreed in the general case.
ayhanfuat•6mo ago
They are free to audit but time limited. After a couple of months you can no longer see the course content.
darepublic•6mo ago
Simple idea.. delivers value. Gets a monetary evaluation. The product is already too good.. water down the product and paywall what was previously free. All too common of an internet story
burnt-resistor•6mo ago
Enshitification because greed.
rgavuliak•6mo ago
> MOOCs never achieved the transformative potential promised during the early hype.

I would disagree, I saw a lot of people, especially in the Data Science field that got up-skilled by back then free Coursera.

brudgers•6mo ago
I both agree and disagree.

In the early days, Coursera was transformative. I took some amazing courses and learned a lot.

...but the vision was always automation and as courses were rerun, the instructors were more likely to be disengaged, and live interaction via the forums fell. Finally when courses went to ongoing enrollment, there were no longer cohorts, and the experience was a correspondence course.

So in the end it was not transformative. It is pretty much just Youtube plus a website plus a payment platform. A less expensive, less interactive, unaccredited version of Phoenix University.

There's nothing wrong with teachers getting paid. It is the standard model. But of course the standard model is the standard model, not transformative.

rgavuliak•6mo ago
Interesting point
freddie_mercury•6mo ago
The early hype of MOOCs wasn't "a few people in handful of fields will get up-skilled".

If that was all they claimed there wouldn't have been early hype around transformative potential.

Coursera had 1.7 million "students" in under 2 years and was growing faster than Facebook. The President of edX talked about "disrupting" the entire higher education system. Stanford, MIT, Princeton, Brown, Columbia, and Duke all offered MOOCs with the idea that anyone anywhere in the world could now get an MIT/Stanford level of education without needing to be on-campus (or pay a lot of money in tuition).

From the 2012 NYTimes article on MOOCs:

'Dr. Agarwal predicts that “a year from now, campuses will give credit for people with edX certificates.” He expects students will one day arrive on campus with MOOC credits the way they do now with Advanced Placement.'

Never happened.

'Dr. Stavens promises more change, and more disruption: “We are only 5 to 10 percent of the way there.”'

Turned out we were already 100% of the way there after 24 months of MOOCs being launched.

redbluered•6mo ago
Agarwal said that in public. Behind closed doors, he was completely cynical about impact. His primary goal was financial (for himself).

What happened was primarily due to personalities and misaligned incentives.

geodel•6mo ago
Well if that was the case, I'd call him full of shit masquerading as educator.
geodel•6mo ago
Exactly.

The hype was massive. Everyone was supposed to be going MOOCs way. It was supposed to restructuring education system grounds up.

Now all I have seen is many did these big data/ data science courses and joined that great enterprise IT boondoggle of data processing/analytics.

aaron695•6mo ago
Alternate theory, MOOCs got lectures put onto YouTube.

And this is what the early success really was.

It'd be interesting to see if what they "up-skilled" on is now common knowledge in Data Science.

rgavuliak•6mo ago
I think especially for Data Science, a lot of the curriculum got taken over by universities and new university programmes for Data Science were created since then so in a way it became common knowledge for fresh graduates.
burnt-resistor•6mo ago
It's the customary bait and switch.
PontifexMinimus•6mo ago
aka enshitification
klipklop•6mo ago
Never took off because employees care zero that you took a Coursera class. Might as well watch YouTube videos or take local community college classes.
ocdtrekkie•6mo ago
Your community college is probably accredited and people actually will care about that one. I went back and picked up an additional associate's degree pertaining to my job.
margalabargala•6mo ago
You're right that employers don't care that you take a coursera course in the same way they don't care you watched a YouTube video.

But in both cases, if you learn something from that course or video, and then go off and create something based on that, that something can be something employers care about.

SchemaLoad•6mo ago
I never did university, learned mostly off Codeacademy back in 2013. I never once listed this in my resume. I instead built website using the knowledge, contributed to open source, and then listed those things. Which seemed to work.

These days I don't do any personal projects or contribute to OSS, I just list my previous jobs and can ace any on the spot questions.

Expecting to be able to list the completion of an online course as an achievement is kind of silly. They are very easy to skim through without learning, and are only really useful for yourself to learn, not to prove anything.

margalabargala•6mo ago
Absolutely. It's basically the same as putting a list of things you've read on your resume.
Grokify•6mo ago
I still get substantial value out of Coursera. I started with Andrew Ng's original Machine Learning course way back when, and recently completed classes that I thought were well worth my time on Claude Code, Crew AI, AutoGen, and MCP.

While not revolutionary, a recent improvement is AI-based review, which is much appreciated for it's near instant review.

From a transformative perspective, I like the AWS Skill Builder SimuLearn classes. They say teaching is one of the best ways to learn, and I found the chat-based role play where you are the expert to be very interesting.

ZYbCRq22HbJ2y7•6mo ago
Anyone have a resource for archived MOOCs?
OutOfHere•6mo ago
MIT OCW is now what I rely on via YouTube: https://www.youtube.com/@mitocw/courses
ayhanfuat•6mo ago
https://videolectures.net/ also has a great archive.
OutOfHere•6mo ago
The VideoLectures site used to be great in the distant past, but now it's hardly even loading for me.
vintermann•6mo ago
The first, and now the best again?
__rito__•6mo ago
> MOOCs never achieved the transformative potential promised during the early hype.

I don't get this gloom and doom about MOOCs.

A substantial amount of people have transformed their lives by learning from MOOCs. I am one of them.

It’s not the usual suspects like, "people don't have self-discipline", "one learns much more in university", etc. that have limited the perceived influence of MOOCs. It is pure credentialism that is behind MOOCs not reaching their full potential.

Everyone is all about skills untill the hiring time comes. Now companies want the students of the best colleges, the best degrees, etc. Students with proper skills might not even get through the door without the proper degree.

I did projects with skills that I learned via MOOCs, I answered questions in interviews with the knowledge that I started getting from MOOCs. But it was my Master’s in CS which ultimately mattered in my getting interviews. In that degree, they still teach GOFAI, "soft computig", and fuzzy set theory, "expert systems", and more things from the 80s.

MOOCs matter, MOOCs are loved and studied by a serious set of students and professionals. But they still can't get you interviews for most roles in most companies. In frontier AI labs, they are now basically treating PhDs as the minimum qualification for most roles.

MOOCs + projects + self-directed learning, even if you are very good, offers you little in terms of career opportunities. That's why they have not been apparently "transformative".

I know the arguments about making hiring easier for companies, etc.

zaptheimpaler•6mo ago
Yeah its infuriating to see free high quality education blamed over shitty corporate recruiting and assessment practices. If companies (particularly outside tech) did anything at all to improve hiring practices and actually evaluate skills objectively, Coursera would be very valuable. Even if this didn't happen, it was a great learning platform. Now that Coursera has replaced their CEO with an Amazon hire, it's dead now. Late-stage capitalism claims another victim.
j45•6mo ago
MOOC was a fancy academic term for lots of videos, often long, maybe interspersed with questions.

Starting was fun, finishing was another thing. Credentialing another.

They helped get a lot of content out in the open.

The sharing of knowledge is great and should continue, hopefully with more modern digital interactions of 2025.

cortesoft•6mo ago
> Everyone is all about skills untill the hiring time comes. Now companies want the students of the best colleges, the best degrees, etc. Students with proper skills might not even get through the door without the proper degree.

What hiring companies want is to get good employees who can do the job they are supposed to do, and they want to have as low a false positive rate as possible (hiring someone who can't do the job is very expensive).

I am not a hiring expert, but they probably get a lower false positive rate looking at school and credentials than any skill test they give.

Companies don't really care about false negative rates (not hiring a person who would do the job well) as long as they are still able to hire someone else who can't also do the job well. It sucks for the person who isn't hired, but not for the company.

RHSeeger•6mo ago
- a lower false positive rate looking at school and credentials than any skill test they give.

- don't really care about false negative rates

That pretty much sums it up right there. And it's not hard at all to see _why_ this is the case.

rustystump•6mo ago
Is there data that backs this? In my anecdotal experience it is all over the place. Unless i specifically know a given program it is a total crapshoot on if it means anything.

I find pedigree to be about predictive of performance as a d20 toss.

__rito__•6mo ago
I have been on the hiring side, too. And the difference between a good enough college and an elite college is the density of really good students.

If you have a fraction:

    really good students
    --------------------
     all students in CS
Then this number tends to be much higher in elite colleges than good enough colleges.

This is my personal experience.

(Past) company did hire from non-elite colleges in case-by-case basis, but one time we wanted 4-5 freshers, we did go to the elite college.

All students of elite colleges aren't better than all students of good enough colleges, but the fraction is what is different.

In a a typical CS dept of 50 students, you can find 40-45 really good ones in elite colleges versus 3-8 in good-enough colleges.

Aurornis•6mo ago
I doubt you’ll find any public data on this because internal hiring success data is rarely ever released and MOOCs are already a rare resume item.

In my experience with hiring, though, it tracks. The number of times I’ve seen a MOOC on a resume is already a small number. Of those, it was usually 1-3 courses, not an entire program. Taking a couple courses does not compare to the repetition and layered learning of an entire program.

If someone showed up with an entire MOOC learning program and certificate of completion that I could verify then I would look into it. In my experience you don’t see this. You see people listing a couple MOOC courses right next to their other certifications. When you ask them questions about the topic they usually don’t remember much because it was a one-time course they took.

gopher_space•6mo ago
Nobody gets in trouble for a bad hire from a good school, and nobody wants to read your resume. End of story.

There aren’t any metrics in this area that weren’t pulled out of someone’s ass, and we know this because collecting them correctly is prohibitively expensive and immune to automation.

77pt77•6mo ago
> MOOCs + projects + self-directed learning, even if you are very good, offers you little in terms of career opportunities. That's why they have not been apparently "transformative".

I remember on one of the first of these courses (AI in Berkley?), people were incensed that they would not get an official degree/certificate from the university.

Some were really mad, as if they had been defrauded or something.

Your point about certification is accurate, but I want to add another nuance.

Even if you manage to get a degree from a "good"/prestigious place, if you are "the wrong kind of person" that will only be held against you.

It's like succeeding at that is a violation of natural law and you need to be punished for the violation. It's almost religious and deeply guttural.

Of course that in places like the states, those people usually don't even get the change to graduate from those places since some excuse will be concocted during the application process.

MOOCs suffer from the online version of that.

However in places where admission is "blind" and the cost free or low this is very common.

__rito__•6mo ago
Thank you for adding the nuance to the conversation, although I would have liked some elaboration on that.

Indian IITs (and other double-I institutions or similar) offer official certificates after MOOCs [0] and they are valued in regular colleges, and engineering students are often mandated to complete a MOOC or two every semester. The difference is that the final test is a proctored, on-site exam. The tests are held in major cities across India, and also outside India in places like UAE, for example.

Most MOOCs in the NPTEL platforms are boring traditional lectures, but some are extraordinarily good and at par with what Andrew Ng, Alfredo Canziani, Karpathy, or Jeremy Howard can offer. For example: Discrete Mathematics from IIT-R [1].

[0]: https://onlinecourses.nptel.ac.in/

[1]: https://nptel.ac.in/courses/106106183

fc417fc802•6mo ago
I never liked MOOCs because I didn't see the value add over youtube. At the end of the day I just want free and unfettered access the full list of video lectures. Accounts, course enrollment, fixed sequences, it's all just friction that gets in the way of actual learning.

They also (at least in my experience) try to force you to watch via the browser. It's far more ergonomic for me to yt-dlp a full playlist and watch it locally.

Luckily MIT OCW exists and an almost unimaginably wide variety of educational material is constantly being dumped on youtube.

kijin•6mo ago
I could tolerate the accounts, sequences, and restricted environments if they were required for an actual diploma that is widely recognized in society. But they're not. The MOOCs are just following somebody's playbook for maximizing engagement or whatever.
__rito__•6mo ago
YouTube + a maintained webpage with slides, assignments, problem sets, midterm and final papers etc. is a fine combination.

MIT OCW is great in this regard.

But can't say that I didn't appreciate the interactive quizzes in MOOC platforms. They are really effective for me.

Fill-in-the-blanks type programming assignments are useless. But the written code can teach you.

In-video quizzes in Coursera is also good for learning, since they ask you something that you should be able to solve with video content up to time t, but they explain it later at t+1. I think the co-founder also mentions this in her TED talk. This is good. I apply it when I am teaching someone in-person.

I also did a lot of online group-studies. These are really really great. All you need is a Discord server or email group, and Google Meet. This approach is better than the usual MOOC setup.

I also deeply value cohort-based MOOCs with video meetings (like Neuromatch Academy) or without (like Complexity Explorer).

And I agree with your sentiment against 2-4 minute videos; slow web design, sometimes requiring interventions with mouse is not something I cherish in some MOOCs.

Aurornis•6mo ago
> I don't get this gloom and doom about MOOCs.

> A substantial amount of people have transformed their lives by learning from MOOCs.

MOOCs are great and I agree: A lot of people have benefited.

The only disappointment is relative to the impossible hype cycle that was happening when MOOCs first entered the scene. You couldn’t open a MOOC relayed article or thread without some speculation that this would be the death of expensive university educations. That obviously didn’t happen, but MOOCs have been quite valuable on their own when well executed.

The primary disappointment I’ve seen is the half-baked courses that have been put out there. The first MOOC I tried was great and well run. The next two or three felt like they assigned some undergrad student a make-work project to put some old course materials on a website but they left out key parts. I remember it almost felt intentional, like someone didn’t want to put too much of the material online or the professor had objected to sharing their materials. They just wanted to say they got in on the MOOC train.

The later generation of courses that were made for the Internet were far better executed, of course, but they weren’t as plentiful and widespread as the hype predicted.

t_mann•6mo ago
> this would be the death of expensive university educations. That obviously didn’t happen

Maybe a bit early to declare that, as the wave of college closures has shown no signs of slowing after the Covid years [0] and is expected to accelerate further [1]?

[0] https://www.2adays.com/blog/college-shutdown-surge-update-th...

[1] https://www.fastcompany.com/91245055/higher-education-crisis...

vintermann•6mo ago
It isn't MOOCs which is killing them in any case, though. Or do you disagree?
t_mann•6mo ago
Depends on whether we're talking about MOOCs in a narrow sense or online learning more generally.
vintermann•6mo ago
So you think online learning is killing college? That doesn't sound very likely to me. Why do you think it is?
t_mann•6mo ago
It's a factor, together with high tuition fees, demographic changes, changing attitudes about credentialism (the political tide turning against liberal elite institutions), the cheap 24/7 availability of excellent learning materials online might kill "college as we know it" (in the US). US college is much more than education, it's a lifestyle, with lavish amenities, extracurriculars, varsity sports, all sorts of counselling. It's a bit of an anomaly, most universities globally are much more bare-bone. If US students start value shopping, the US college landscape might start to look more like that.
__rito__•6mo ago
This makes sense.

But if we start benchmarking the effects of anything against its its Sillicon Valley-flavored hype, then, every tech/X-train will be judged as underwhelming, not reaching its "potential".

vintermann•6mo ago
I have also taken many Coursera courses, and paid for them too. I was considering taking another, but I can't reward this sort of "leadership". Congratulations, they sold out on all their promises and in return they're about as profitable as a mid-sized construction company?

It's true, I took MOOCs because I wanted to learn things, and they were actually good at that. It was actually damn impressive how e.g. Andrew Ng's courses stripped away all difficulty which was not related to the thing you're actually trying to learn. The impact of that when you're self-directed is hard to overstate - nothing kills motivation like getting bogged down in getting software to work or confirming to some professor's favorite citation style.

Yet they seem to not understand that. They're all about my "career goals", they can't seem to comprehend that I would be there for any reason but impressing a fortune 500 company (which, from what I understand, it never does anyway).

__rito__•6mo ago
Didn’t notice the double-l in 'untill' till now. ;)

Edit window is gone.

ozgung•6mo ago
Learning Neural Networks from Hinton was transformative for me. It must be transformative for the industry, they still use Coursera lecture notes for citing RMSprop. I completed the very first MOOC offerings in Fall 2011, Machine Learning by Andrew Ng, and AI by Norvig and Thrun. It’s the first time ML “clicked” for me although I had took ML course in Master’s before. Sadly no one cares about my “Statement of Accomplishment”s when hiring. I carry them with pride, knowing they effectively taught me timely and relevant knowledge from the best experts in the world.
loco5niner•6mo ago
Same here. Finally got a dev job a few years after graduating with my Computer Science degree when a boss noticed I was taking a MOOC during my slack time. Graduated just after the dot com crash.
robertritz•6mo ago
MOOCs have always given value to a certain group (about 3% of people who are motivated to self learn) and are basically useless for everyone else. Which is why they are primarily virtue signaling devices to fluff your LinkedIn.

When I started learning to code for data science I appreciated the lectures and examples. Once you reach a certain technical level these MOOCs aren't really helpful though.

recursivecaveat•6mo ago
Sometimes I wonder what an MOOC-like education that went all-in on signalling/credentialism would look like. You convince some real down-on-their-luck university to lend you their name to provide eduction for lower income adults, you rent a big empty room with folding chairs in downtown where people actually live a few nights a week, a contracted PhD with a tweed jacket and a blackboard lectures in person, curriculum straight from an old edition textbook with pen-and-paper tests.

What would it cost without the overhead of a whole university around it? Would adults attend?Would employers accept it? Hard to change eduction more than a little at a time, since the buyer is literally buying a "you did it" certificate for 10s of 1000s of dollars, they are justifiably risk averse. The person examining the credential also doesn't want to do individual research on every single person's eduction.

mgnn•6mo ago
When did Udacity fell off the MOOC discourse? That's my first experience with MOOCs; have fond memories learning robotics with Sebastian Thrun there. I used to prefer its short lesson and frequent quiz too.
nileshtrivedi•6mo ago
MOOCs are still going strong at India's NPTEL , which started distributing university-level video courses for engg in 2008:

- 5m subscribers, almost 2B views on youtube

- 30m enrollments

- 600+ courses every semester in 22 disciplines

Anyone from the world can signup. Proctored exams are optional and cost about $11 per course. Not taking VC funding and setting up local chapters for supporting students seems to have worked out well for them.

Website: https://nptel.ac.in/

ACM report about this from November 2022: https://dl.acm.org/doi/pdf/10.1145/3550473

Former-director of IIT Madras has talked about how NPTEL came together: https://www.youtube.com/watch?v=LV-QoGegFLY