skysight-inc/HackerNews huggingface dataset:
I got "Calculus Made Easy" back in high school, and it helped when I first took calc in 10th grade, and then BC Calc in 12th grade. It gave me some confidence to have seen the basic ideas presented in a gentle way. Actually, once you get past the old-fashioned language and layout many math books from the early 1900's are pretty good. They don't have a lot of the abstraction that came later, some of which makes you feel like you're trying to do surgery while wearing boxing gloves. Anyway, there are other calc books which have similar intents, though different styles. Here are two:

Daniel Kleppner and Norman Ramsey, "Quick Calculus" - We used this for math background when I was taking AP Physics in high school. The physics textbook was Resnick and Halliday, which uses calc throughout. It is not particularly intuitive, but the "programmed learning" approach makes it very easy to pick up enough basic computational ability to do applications. (The phrase "programmed learning" is so old that maybe I should clarify that it has nothing to do with computers.)

H. M. Schey, "Div, Grad, Curl, and All That" - This might be helpful for people taking vector calculus, or using it in an electromagnetism course in physics. In fact, a lot of his examples are from E-M. Very good at providing intuition without too many technicalities.

I think the best uses for books like these are: (a) You want to get the "big ideas" without worrying too much about technical facility (maybe because you won't ever need it - e.g. you're just learning for your own interest); (b) To provide a fair amount of the math you'll need in (say) a physics course; (c) As prep before taking a standard calc course, or maybe as a refresher. Books like Thompson, Kleppner and Ramsey, or Schey will help with the big picture and to boost confidence but it's best to read them before taking the "real" calc course - since once the "real" course is running you'll be too busy with the work in the course to read something else on the side. But do whatever works for you. Calculus really is wonderful - have fun!
If you want time without AM/PM, use 24 hour time. If it is 23:00 then no time display should ever display 11:00 without a PM because it’s then lying because 11:00 with no AM/PM unambiguously denotes 11:00AM.
The gambling companies have a lot of political sway here.
One interesting fact that I recall, and that I didn't see in the article, is that evolution in some Owls traded off silent flight for the inability to fly when their feathers are wet. When there's an extended period of wet weather, owl fledglings may starve because their parents can't hunt.
I looked at that article, and think they are misrepresenting the data.

First they show that the percentage of people employed is now higher, and later on that the median family income is slightly higher adjusted for inflation.

To support a family now you generally need dual income, whereas you didn't used to need to. So you're seeing dual income families now with slightly more income than single income families had generations ago. However, they have much higher expenses because they don't have someone working full time at home.
Before we finalized the specs we did a lot of testing to make sure that enabling MPTCP wouldn't break connectivity. Either it would be passed correctly, or it would fall back to single-path TCP safely. Generally, so long as a middlebox passes through unknown options unmodified, and does not try to enforce that the TCP sequence space it sees is contiguous, MPTCP should work through that middlebox.

If you're interested, we wrote a couple of papers on this:

[1] https://www.usenix.org/conference/nsdi12/technical-sessions/...

[2] https://www.researchgate.net/publication/229002024_Is_it_sti...
Thank you for pointing that out. It was nice to have a reason to read the translation much more carefully. It's clear that Fourier understood there existed some greenhouse effects from the atmosphere, but didn't have a strong grasp on details of those effects. And as you say, it doesn't talk about CO2.
I think the mistake here was using guides. I used guides when I first played them and I remember feeling similar about them. I replayed some games again over the years, without guides, after enough time had passed so that I couldn't remember much anymore - it was a completely different experience, and much more enjoyable. Sure, sometimes you have to basically brute-force your way forward, but often enough you do figure stuff out and it's rewarding, you feel like you're starting to 'get' the humor.
"didn't require much of an education"

Have you ever tried to move one single cow? Now would you consider trying to move a whole group of cows, without someone educating you how to do so?

Probably not I think. It certainly takes lots of education to become a skilled cowboy. But it required no school education. And more people grew up with horses than with books(back then) so the low pay was because of high supply, not because it was a simple job.
Take a bus to Dolores Park (SF) this weekend and see who you can convince to give it up.

Otherwise, please exactly identify the “low density” area of SF you want to force your will upon.
It would be really helpful if they would give better options to Google Family account users. I have a Google Family Account and I had to create a separate account just to use Geimini 1.5 Pro advanced, because only the top user with a family account can sign up.

They should offer a family plan or allow all users to sign up individually.
Nand to Tetris: Building a Modern Computer System from First Principles
This is not a place of honor.
How are you taking your temperature? Infrared sensor on the forehead? Infrared only measures surface temperatures and can give false readings of temperature based on how the body "radiator" system is working.
I was literally waiting for a primary fork to emerge. Bye Felicia (Redis)
>One is, how do you compare the values of e.g. pollution vs. job creation?

My question exactly. Ethical calculus you propose should be able to do that in a manner that won't cause affected people to literally tar and feather you in the best case.

>The other is, there is a cartel charging monopoly rents because there is a law inhibiting anyone new from entering the market.

That's like, your opinion. Fact is that you can build dense housing in any big city in the US. No cartel and no laws forbid it. The argument of "but I want an apartment tower right THERE and it's zoned SFH!!!1!" could as well be applied to SFH and with the same veracity you could repeat that "the law forbids building SFHs" because there are lots zoned AG or industrial where you cannot build a SFH.
There is a straw man that you have concocted that says that "Tesla haters" (and I will own my bias here, despite being the target audience[1] for Tesla, I am a fan neither of the vehicles or the CEO) who are in the software industry are pressing for these recalls to be called out as recalls and not "just a software update".

Some of these are "recalls that can be fixed with software, often OTA". They're still recalls, no matter how you spin it. Because they affect safety. Maybe in a minor way, in an edge case, in some cases, but nonetheless, despite your sarcastic pouting of "I guess it's a light because pixels glow".

Just like it's a recall when Lincoln says "insert this page into your owner's handbook", or Toyota says "affix this sticker at the bottom of p 232".

> Do you think NYPost or the CNN shouldn't have added 'software' in the headline, perhaps before the word recall?

I, personally could not care less whether the word software appears or does not appear in the headline. I care that it's called a recall. I'm sorry that that hurts some Tesla fans feelings in that they think it makes things sound less safer. OTA updates for safety issues were still a safety issue. And I have zero sympathy when I listen, as I have here on HN, to same fans insisting that its a conspiracy to insist on it, while pretzeling themselves into saying that my user manual examples are still recalls "because I still had to do something about them, while their issue was fixed in their sleep".

Sorry. No. If placing a sticker in an owner's manual is a safety recall, so is your OTA update.

[1] liberal, environmentally conscious, heavy tech fascination gadget geek who likes adrenaline and acceleration.
> What happens to existing hardware at that point? Resold for video games? Sold to people who have cheaper electricity?

I think some is sold to people who have cheaper electricity. Some miners shall probably also mine at a loss for a while, sitting on reserves, while smaller ones dies.

Cannot resell for video games: Bitcoin is mined using dedicated ASICs since many years. And Ethereum, the second biggest after Bitcoin, is now mined using proof-of-stake (so neither GPUs nor ASICs involved).

But in a few halvings (every four years, so in a "few halvings" I won't be here anymore) I don't understand how it'd work out: too little BTCs rewarded per block and I don't see tx fees paying the miners.
Indeed an S-tier insect build: https://youtu.be/g9BMcIxrkF4?si=lkvIrU5CiAdEpJeX&t=1224
>You don't need a marketable idea

Seems like most of the application is describing your idea.
We are experiencing exponential growth in the last week, going from 1 user to 2.
A factor 10 dilution is huge and I'd like to see the math on that.

There are different roles founders hire for under the "founding engineer" umbrella.

There is your fresh out of bootcamp "founding engineer" brought on during pre-seed or seed stages to help bash out POCs and mocks used to sell the vision.

Then there is the "founding engineer" they bring in post money and customer commitments to actually deliver the MVP and help build out a professional engineering program.

I'm in the later category and those roles can pay very well for early stage startups.
> you can beat the shit out of cops in some cities

citation definitely needed
Looks like you ported SCUMMVM to WASM. Was this the approach you took?

https://github.com/chkuendig/scummvm-demo
While it’s technically correct that the First Amendment only applies to the US government, it is also true that Americans are (or were) understood to have broad free speech rights that included all facets of life.

Were that not the case, the Hollywood blacklisting of known or suspected Communists would be a nothing-burger and not a cause célèbre.
It was a question more for us than general public. I think YC is probably the best first check you can get since they invest in companies with nothing more than an idea.
> Unfortunately, there's not a livable version of society where we "ban" gambling

True

But we can regulate it

We can limit the damage
> I used to be a die hard liberal

I have such skepticism on these things. I don't think you alter your fundamental world view on things like human rights, the environment and such because of "liberal media".

I think exposure to viewpoints that either validate your biases or contradict your worldview strengthen your position, and rarely change it.

In short, I am always skeptical about "I used to be a liberal, but..." (and for clarity, "I used to be conservative, but...") - it's almost exclusively a weird argument to authority. "I know, I understand, I got you. But I saw the light." No, you were probably always conservative, deep down.

This can also differ if you're talking exclusively the political parties, who generally fall under "all suck" in my view.
I just went through the application because of your post. I don't have a lot to bring to the table so hopes are not high but what's the worst that could happen? They say no.

Anyway, I got hung up on the video, I definitely have no idea what to say, so I saved the application for later and will come back to it. Perhaps my plan for the video should be to read what I wrote in the plan fire it off and forget I did this. :) But yea, as someone who has issues with presenting to others visually in this way, the video requirement is really hard. I'll do it because this is all to see what happens, but definitely not confident on that part of things.
I really appreciate this comment. Service offered / payment received is irreplaceably wholesome and satisfying :) especially when they come back as repeat customers or become regular clients. Repeat business and gradual growth gives us both an exciting feeling about the future that I never quite felt at a startup. I've found too often a venture-backed startup is really a lifestyle business in disguise for the founders, not really about serving customers, so it's hard to truly get excited about them anymore. Where running a business that solves a problem for paying customers feels more like changing the world:

> we're making a difference in their lives, and they in turn pay us money

We've felt this too in our community, it's the real meaning of "Make something people want" (and why we haven't had a day off in like 62 days or something lol). It's strange to refer to our business as a "startup", but it is one, moreso than most VC-funded ones and I bet we have more customers, higher revenues, and a better growth outlook than the average local seed-funded startup. For us, a loan or VC route would just let us expand nationally right now to other major cities, instead of focusing first on the Bay Area and expanding nationally over the next several years which feels inevitable.

The amount a VC might pressure us to go in the wrong direction is another worry, and because it's just capital we'd need (not advice), they might just get in the way and throw off timing or team structure.

Thanks for your comment! I needed the reminder of how rewarding it is compared to conventional employment as today has been exceptionally hectic!
This is like prevaricating about whether the Earth is flat. If your standards allow you to set aside direct observations then you are not being scientific, and if you don't like "skeptic" as a label for that then I don't mind getting creative.
That’s essentially how the whole world operates. Y Combinator isn’t an exception. Do you think a wealthy investor would prefer to fund an unknown individual, or someone whose father is a well-established law professor at Stanford?

However, I do believe that YC tends to be somewhat more egalitarian and merit-based compared to others, although it’s not by a significant margin.
You forgot the best reason to apply -- because just filling out the application makes you think about your business in ways you probably have never thought about it before.

I tell every startup I talk to to fill out the YC app, even if they never turn it in.
That's potentially true if someone is trying to profit off 51% attacks.

But the true worst-case scenario is one where a coalition of governments decided to use 51% attacks as part of a plan to kill bitcoin.

They don't need to invest in mining equipment, they could just declare bitcoin as illegal and seize the biggest mining operations. It would take maybe 10 coordinated raids to grab more than 51% of rigs. Then they turn their seized mining farms towards mining a chain that rejects all transactions. Nobody would be able to move their bitcoins, other mining farms wouldn't be able to sell their coins and they would shut down from the combined threat of no revenue and potential future raids.

When combined with raids on the major exchanges to eliminate off-ramps, the value of bitcoin would crash as everyone rushed to liquidate.

And once the value of bitcoin crashes, it's much easier to continue the 51% attack, they would be able to shut down most of their rigs and leave them in reserve. You couldn't switch to a clean fork, as the government miners would just follow the fork, make their empty blocks look valid with spam transactions.
We're not in AI :( and it seems like YC isn't interested in our space. Outside of the current wave of interest in AI I think we would have serious interest. Would you still apply, or wait?
My co-founder and I have applied twice and been rejected twice, and we don't regret it.

There is no real downside to applying. In fact, as others have said, applying helps you to refine how you pitch your startup.

The only negative is that there's a 99% chance that you will be rejected, and rejections can hurt. But being able to deal with rejection is important in itself.
Serious question: Does YC recognize and remediate the unconscious bias that comes with looking at said videos? It seems like it may be comforting, but potentially counter-productive.
I was excited about it because we were working on delivery robots and I wanted a good solution for instant failover given 2 cellular modems.

We ended up going with PepLink's SpeedFusion to save engineering time. But the license was costly. I really hope for a free solution in the future for 2 cellular networks and <50ms failover.

Multipath UDP + OpenVPN would also probably be a viable solution.
Ask HN: Why aren't programmable mice popular?
I've gone down the rabbit hole of split and customized keyboards over the past year and I've come to appreciate optimizing my workflow by rearranging keys, using macros, etc. mostly while programming.

Recently, I've been doing more design work in Figma and I find moving my hand between the mouse and keyboard aggravating. It kind of defeats the purpose of having keyboard shortcuts if the key is on the side of your mouse hand.

This got me looking into programmable mice, but I've discovered that there really aren't many and very few are targeted towards productivity. Why does this category seem to not exist while the custom keyboard space is so vibrant? I would image that there would be a niche but decent sized market for a productivity-focused programmable mouse.

Maybe I am using the wrong search terms, or is the demand for this type of product really that small?
POOF!

"Long time listener, first time caller", as they used to say in talk radio. [This is my first post; please be gentle... :-) ]

At least two reasons my apply.ycombinator.com submission will likely forever remain in "Save for Later" mode...

1) Founder's Personal Work and Education Histories: are both (a) highly-structured, and (b) can't auto-link/-copy from LinkedIn.... Like most prospective employers' "lazy" external-facing HRIS'. [Aside: Why can't Workday at least link to/ copy from LinkedIn for job app completion already?!] I'm already spending umpteen hours on-end doing this for all the prospective employers offering jobs I'd prefer to not need to take... And thus I was "spent" when I entered this form. Alternatively... Why can't I just attach my resume?

2) 1 min video, with audio, required. Feel free to label me "shy"/ "tin foil hat"/ have a paranoid threat profile/ etc.... But I'm just not comfortable voluntarily submitting recorded audio/ video of myself for "pre-short-listed" "one-off" use cases such as this. As an HN post from earlier today illustrates... M$FT (and, presumably "et al") can now make a deep fake of me with just one still image and less audio than YC is requesting. Why do I want to help them along? ;-) [Yes, Zoom et al likely has many hours of recorded video of me, because prior employers... And said employers likely signed away my audiovisual likeness without my (explicit) consent because "AI training", etc... And I've had to consent to recorded interviews for job opp'ties (but at least those were post-short-listing)... But I prefer to remain in denial about all that. :-) I've never claimed to be either rational or consistent... ;-) ]

And no, my idea(s) aren't Bookface/ Instagrim/ ClosedAI -caliber, so... No biggie, I guess. shrugs

Anywhoo... Thanks for reading! :-)

POOF!
Yeah, reading the posts above it's like the people above have never worked in logistics where all those things have been a solved problem for 40 years with a database and heuristics.
Crabs are interesting in this respect as well.
I just asked and this is what I got back: (1) if you're sure you want to complete your senior year, just wait till then to apply; (2) if you're not sure, apply now; (3) there's not currently any process for people who want to apply to batches farther out than the next one. I suppose (1) and (2) follow from (3) but there you go :)

Either way, good luck and please do apply when you're ready!
You're perceiving the causal chain in the wrong direction.
True, but you shouldn't then expect to show up to that same job the next day after protesting.

I mean, perhaps if we had better worker rights, but still even in the most progressive nation I wouldn't expect an office protest not to warrant the company firing the employees doing the protest. When unions strike, they don't do it at their desks.

I'm sympathetic to why these employees protested, but also think it's unreasonable for them to think they could keep working at google after the protest.
>Do you not know of all the technology that we enjoy today that had movies and books decrying the dangers?

Like what?
Whether you can see this POV or not, I'd consider that from their perspective you are trying to sell them something. You are trying to sell them on the notion that they should give their time to you for free and they should give you insight to start a company that would be lucrative for yourself. The value trade is actually even less equal than being sold something.

I'm not trying to be rude or insulting, but thinking you have pure intentions doesn't change this.

Some people might have the time or interest in the hope that you can one day make their work easier. So overall I understand why you are asking this question and I'm sure the advice people have given here will help you make some stronger connections to people in this cohort.
Because you don't have to clean up after yourself.
If you actually get 1% at seed stage and the company goes through a "few rounds" of funding (and subsequently exits), you're doing great. You've basically won a small lottery and have an excellent chance of being a millionaire.

The problem with startup equity is that this is a very rare scenario, and most of the other scenarios aren't so good. If the company doesn't exit, your equity is worthless. If they exit at a value below your strike price, and you exercised your options, you could end up in debt. Lots of ways for this to end badly.
Doubtful, there's a 15min limit on the server.
I wonder if the reaction from Google would the reaction be the same if they were protesting for LGBTQ? or BLM? or would they be happily cheered on here.

And should those employees had been fired, would HN have a melt down about free speech and expression? I could absolutely imagine a full investigation into Google's leadership in that case.

Let's not pretend that certain causes gets a free pass while others don't. Will there no longer be politics at Google now? I guess we will have to wait until the BLM outbreak to determine but I doubt it.

For the record I don't have any specific comments on this war and I think what Google thing was right and politics don't have a place in the workforce but I feel obliged to point out the hypocrisy.

Either you are a company full of activist and embrace it or you shut it down entirely. You don't get to pick and choose your favorite cause; it just makes you look spineless.
For what it's worth, speaking in terms of free software rather than open source (since the author of the featured article might be receptive to the moral ideals of free software rather than merely the business-pragmatic ideals of open source): if the vendor lets you download the source code of free software already in your possession without an excessive burden (one valid option being letting you download a zip/tar.gz of the entire necessary codebase; one invalid option being forcing you to copy files one at a time) then the software is free software regardless of whether the vendor accepts any third-party contributions.
That's nice, but a little odd that it's paywalled when the 4K option is not.