skysight-inc/HackerNews huggingface dataset:
I mean, I get that but why is it not a concern when I want to borrow money? Or, even more relevant, when my wife wants to borrow money? She has multiple credit cards with tens of thousands of dollars in borrowing power in her own name and has had and paid off two loans, all while not having a telephone bill in her own name or even being on the deeds to the properties we've lived in together.

I see it less as CYA and more as "we can make money off of you so the requirements are relaxed because we're making money"--that is, lending money that she'll presumably pay interest to borrow--versus "oh shit you want to put $1,000 in an account and our bank pay you better do the fifteenth degree."
Triplebyte/HackerRank etc is a great filter for companies that view their developers so low they would subject them to such pre-employment screens that no other employees in the organization must jump through.
I don't think you are too old. Many of my coworkers had erratic, non-technical careers (construction, military, fireman, etc) until their 30s.

Just prove you can solve business problems using code.

If I were to get into software again, I would completely ignore the hype and choose a robust set of technologies and exclusively master them. Namely, Java (Spring Boot), MySql, Jquery. These are some of the most mature and popular technologies available - you can build anything with these. After you have built this foundation and found a job, then you can move onto other technologies.

Create a github if you don't already. Pick a project (bonus points if it solves a real problem in your life). If you can't think of anything, build a TODO-list.
Scrub/repaint every few years?

In comparison, splashdown capsules spend maybe few hours tops in the water.
I'm 63. When I was a kid (pick an age), there weren't anywhere near as many programmers as there are now. So while I believe lots of older programmers have gotten out of the field, one way or another, I think the remaining ones are simply hidden in the crowd.
Google isn’t only search and ads. Their adverse is worse in smaller markets like Maps and Cloud, where they use revenue from another market to commoditize and build a moat in another — thereby unfairly competing.
> What you're admitting here basically is that you think Comcast should be broken up because they lobby for things you don't like, but FAANG is fine because they lobby for things you do.

The original point of anti-trust law was to make things better for the consumer. If Comcast is using their power to lobby for anti-consumer practices then they should be broken up. Naturally consumers are going to disagree with anti-consumer practices.
Cool product. My flights are generally personally booked, and I basically compare as I described.

What I would like is an engine where I can punch in the various kinds of pain per hour I can tolerate and book that.
> And the cost of entering a new market should be relatively low for a company like Lyft.

That's 100% incorrect. Entering new markets is insanely expensive, because they can't get drivers unless they guarantee income until the market is successfully built.

> The nature of the business means they don't need to make any huge up-front investment in new real estate or equipment. It's mostly just running promotions to attract business and drivers in the new market.

Again, you're missing the biggest expense in entering a new market: labor. Nobody is going to drive around in a Lyft with no customers. So Lyft guarantees them some degree of pay while they expand. That can take time and is addition to the promotional costs with entering a new market, particularly one already saturated by Uber.

> Last year they lost $911M on $2,160M of revenue. If handing out incentives really represents over 30% of their costs, which is what would be implied by the "they'd be fine if not for trying to grow so quickly", that would be pretty worrisome.

Worrisome? That would be ideal. Growth companies should be spending money quickly. We have a name for it (burn rate). I think a lot of people seem to be confused on what an IPO is. It's a funding round, unless the company is doing it because they have to (investor count is too high).

> It would imply that they're in the business of selling dollar bills for $0.75.

The implication is that when they go to a new city they are selling dollar bills for $0.05. What remains to be seen is whether a saturated market can be a profitable market.

> One of the big subtexts here is that the standard tech "hyper-growth" business strategy is designed for businesses with very high fixed and very low incremental costs. Lyft has just the opposite: Low fixed and high incremental costs.

They only have high incremental costs when they expand into a new region. What are their incremental costs when they've successfully saturated a market? Labor (which gets cheaper as a fixed cost over time, as your market size increases) and hardware, which does the same.

Again, I'm not suggesting they are going to be profitable, I'm suggesting that the idea that they should be making money while entering as many new markets as they are is a crazy position. In order to do that they would have to slow growth substantially, which is literally just dying to Uber.
I would assume free cash flow would be the reason. Let's assume that you could get $20M per seat on a 7 seat dragon with 2 of those seats going to crew and the other 5 going to paying passengers. You, launch them on a re-usable F9 which you currently charge $80M for a non-reusable booster flight into low orbit. Could you clear 25 - 35 million in margin on that? Could you do that for doing "nothing" special other than having the gear ready? Clearly we'd need way more visibility into their operational costs but if you could generate 250 - 300M$ per year that was not from fixed price contracts I think that would be a helpful thing from a money management perspective.

They still might not do it, but I don't think the sub-orbital passenger trips are very close. So many "other people" have to get involved before that is real, like treaties with the world about how you regulate overflights, or tariffs, or do air traffic control, or who pays when your rocket augurs into the innocent village, Etc. There are lots of details there, whereas Roscosmos has already done tourist flights to the ISS, and with their own launch facilities most of the variables would be under SpaceX's ability to control.
And -Wextra. Adds some more useful warnings not enabled by -Wall. Even adding -Wextra doesn't turn on everything, yet more have to be turned on manually, like -Wzero-as-null-pointer-constant.
Of course there's a difference between city center and city boundary. Of course some places are loud and some are quiet.

But the point I'm trying to make is that "noisy, dirty, cramped" isn't a singular fact of urban life - in fact, there are plenty of places relatively high density that are none of those. Even in the USA, there are neighborhoods like Brookline in the Boston area. Brookline is relatively dense (the streets near the light rail system anyways), but also quiet, clean, safe, and residential. The main problem is that it's expensive, very expensive -- which is understandable because there are so few neighborhoods built like it, so it's a very desirable place to live.

You mention "worlds apart from the quiet, disperse suburbs 30 minutes away", but this is also a product of urban planning. Here's what a neighborhood 30 minutes away from Osaka city hall by train looks like:

https://www.google.com/maps/@34.6176119,135.520036,3a,75y,14...

Quiet, dense, Residential. A mix between single family homes, tightly packed, and mid-rise apartment complexes. High standard of living, but affordable to the middle class (330~ usd per sqft from my understanding)
As you say, there are several tetanus vaccines. The recommended 10-year booster is the Td (just tetanus and diptheria) or the Tdap (tetanus, diptheria, and pertussis) if you haven't gotten it before. (The Tdap is also recommended during each pregnancy.) Any tetanus-containing vaccine would do though. I believe the amount of tetanus toxoid is the same in all of them.
We could listen to it. But an AI could have good-sounding but insane reasoning that leads to insane results if we follow its recommendations. And, if the AI were more advanced than we are, we couldn't tell. We could only trust it, or not. But if we trust it and it's wrong...

A more malevolent AI could hack its way into infrastructure. Even if we intended to leave it airgapped, it could probably find a way around it (we humans seem to be really bad at true airgapping). From there, it could destroy, not mankind, but civilization and most of the human race.
I'd say rather than practicing interview questions, work on a side project that really stretches your technical ability. And a hard project, something that you don't even know where to start, not just "I'm going to rewrite this todo app in vue.js". I think that gives your brain more of a workout than droning through interview questions day after day. Even though you could say "you don't run marathons to practice for a sprint", just in my experience it works better. The interview practice websites are too easy to get distracted from, or look up the answer, or whatever, and your brain really doesn't get the workout that a solid long-term low level project gives it.

Plus, at the end, at least you have a project you've done.
Ask HN: How big can an energy monitoring and management software be?
How large is the energy monitoring market and can a Saas platform in this field really nail massive profit. If yes, what advice can you give
Wow, TIL. Thank you!
Porfiry: A visual representation of the Mueller investigation
If the drivers made less than it cost them to maintain their vehicles, they wouldn't be doing it.

I know that a lot of people think the drivers generally are that stupid, but I'm skeptical.
I recently saved ~$4000 on a round trip business class ticket from the US to South America. Instead of departing from Denver, I departed from Newark. This was very strange as I was on United which is a hub in both cities. I guess United really wants people to check out their new Polaris lounges?
As I understand it, originally SpaceX was planning on using propulsive landing with side-mounted thrusters and legs coming through the heatshield (i.e. what was planned for Dragon 2) on Mars, so they were developing the technology with that end in mind.

Once they decided to go straight to Starship/BFR with the movable 'wings' and raptor engines on the bottom and cancelled the dragon missions to Mars, there was less reason to go though the huge amount of work to finish developing and qualifying dragon-style propulsive landing. NASA was never super happy with it and Dragon was designed to do water landings with parachutes in case the thrusters failed anyway, so it wouldn't have been too much work to make that the only option.

This has lead to a strange situation where it seems Boeing's Starliner has ended up being more reusable than Dragon as it comes back onto land... But if they get Starship going, all this will be irrelevant.
>>Should the insurers costs be a factor in patient care? No.

This is a very odd view to take. I live in a single-payer system (Canada), although we don't have a similar system for prescriptions (yet). I have supplementary medical insurance through my work. Of course I want my insurer to keep costs low; that means more money to pay for important things, and lower costs for my employer (and by extension, me).

I take two regular prescriptions, and I happily accept generics, because they're cheaper and they work. If they didn't, and the name-brand would for some reason, then yes, I'd expect my insurer to pay for that. But to default to the lower-cost one is not a bad thing for patient care.

If you think the insurance companies are taking too much money from this relationship (I do) or if the whole idea of barely restrained medical capitalism is immoral (I do) or if insurance companies should have much less control over medical decisions (I do), I can understand that, but especially in the current system this is one of the few good ways to keep costs slightly lower.
If I wanted to use Uber to commute to work five days a week, the average ride even with UberPool would be around $19 one way. Assuming I go somewhere else that's of comparable cost just once a week (in practice, I tend to go out for dinner several times a week and go fairly long distances on weekends, but never mind), that's 26 days a month spending ~$37 per day, for nearly $1000 a month. My car payments, insurance, and fuel per month are almost certainly hundreds less than that.

"Why own a car when you can just Uber" makes sense for people who live in areas where they don't have to (and don't want to) drive very much, but I think the assumption that most people fall into that group is pretty shaky. I think it's probable this will change over time, but that time span is almost certainly going to be decades, not a few years.
The larger issue is that Amazon does not treat each product equally. When you search for an item, they don’t necessarily even show you the “best item” — most bought or highest reviews. Products which buy advertisements or Amazon’s own brands are bubbled up: its not an even playing field in this sense.
I quickly learned how to game my high school math teacher's grading system. I was a genius at math and could do 1 or two new problems and completely understand how to solve that type of problem.

My teacher scored a homework assignment for 3 points of the final total of points. A quiz was 10 points. A test was 100 points.

Since I could ace the quizzes and tests with every answer correct, I figured out I only had to do enough of the homework to make sure I knew the problems. I would get one point for the assignment. Whenever she gave extra credit assignment, I did that.

It always burned her butt that I would come out with a low B for the final grade.
I’m bullish on ridesharing as a segment but bearish on uber and Lyft, simply because I think both have been run like landgrabs - large VC backed pushes to jumpstart demand and find drivers. In this case though I think the land won’t stay “grabbed”.

Every driver I have seen is driving for both services and would add a third if someone told them about it and it payed equitably, so I think all the work uber and Lyft have done to make a market can be leveraged by third party competitors if they start dialing up prices to become more profitable. And I think they will need to do that to meet their valuations.

This isn’t like Facebook where a larger network acts like a moat keeping competitors out. Instead, I think it actively makes a market for competitors- the friction for drivers is pretty small, and I don’t know the friction involved for getting users to download another app but I imagine it’s pretty low. Because the drivers are the same it’s a commodity, and switching between apps costs me nothing.

Disclaimer: I probably don’t know what I am talking about.
> to decide whether or not to subject themselves to the jurisdiction of the United States based on the scope and nature of charges they may face, which is not a legal right.

Nobody said it was a legal right. Whether something is a "legal right" or not is pretty irrelevant when you are defending against a nation state political attack. The nation state can probably just do whatever it wants anyway.

> The allegedly indicted party (who is not a defendant until and unless prosecuted) has no legal or moral right to do so

The best way to defend yourself against nation state attacks is rarely "Put yourself in a cage, controlled by said nation state.".

> Once there is such an accusation, it will be public.

Not if they do the same thing that they done with the other accusations, which is to seal the indictment. Secret courts, secret judges, secret crimes. There is zero way to hold the government accountable for this kind of stuff, unless you count "Just put yourself in the cage, controlled by said nation state" as some sort of solution that achieves justice.

> well, not assisting flight from prosecution is one of the key reasons indictments are often ordered sealed until the accused is in custody.

And it is a key reason to support making it public, if you believe that the process is corrupt to begin with. There isn't any way to hold the government accountable otherwise.

Would you support Sadia Arabia if they started extraditing gay US citizens, from the United Kingdom, and then executing them for being gay?

I wouldn't. The situation with Assange isn't much different then supporting Sadia Arabia if they engaged in that kind of behavior.

IE, I am sure that exposing government crimes is "illegal" in many countries that don't want to be exposed. That doesn't make it right. And the moral thing to do in that situation, is to undermined any and all efforts to prosecute whistleblowers, and undermine them through whatever means necessary, regardless of what the legal opinion of the nation state is on the matter.
On BART: in 2017: 428 Violent Crimes: 293 robberies, 130 assaults, 5 rapes(!!).
In 2007 -- 245 violent crimes.

Ridership has increased 22% over the past decade, however violent crime has increased 75% over the same period.
> so they probably have an evolved way to deal with the psychological burden of this.

I like that idea, but I don't understand how natural selection would favour animals that are less stressed about predators. Are you implying that the gazelle actually enjoys the thrill as it is running away from the lion?
Most of the world probably does believe this, which is something I find profoundly disturbing. We have a long way to go as a species in developing a sane ethics system.

However, considering the progress we've already made, I have hope that we can make more.
Discussion of the “How not to design a wire protocol” post:

https://news.ycombinator.com/item?id=19312643
If it were a redeye and I could get an upgrade to lie-flat seating? Yeah, I'd pay that out of my own pocket.
> For the types of questions you describe, I just use my password manager to generate random strings for each of those answers and make a note of what question each string matches with.

Can't do that with United.

The answers are drop-downs.

https://krebsonsecurity.com/2016/08/united-airlines-sets-min...
On a vaguely educated guess, it’s related to the lack of an MMU.
Umm just wanted to note one of my friends started a meetup group for over 40 coders in NYC. I'll update this post with the link to the meetup. I'm gonna contact him now.
We have cataloged planets in hundreds of other solar systems. We see ones with only rocky planets. Ones with only gas giants. But we're the only one we know of with both gas giants and rocky planets. The only one where the rocky planets wind up protected from most of dinosaur killer kinds of impacts.

Right, because that’s what or current techniques mostly allow us to find. Big planets close to their primaries are most favorable for techniques based on transiting such as light curve analysis. Drawing conclusions based on limited data with primitive tools is a poor notion though, and it tells us nothing about the typical makeup of extrasolar systems.
Something is rotten when it’s easier to get a journalist to write an article than it is to get access for an investigator not affiliated with the University to reanalyze the IT department’s evidence. Hope she is able to get a fair hearing, via legal action if necessary.
This "tracked" lobbying is drop in the dark matter of political money. There are huge numbers of "career" congressman with disproportionate amount of wealth even though their only supposedly legal income was less than $200K. Magic? You don't get private dinners with presidents with just legal lobbying money.

https://www.rollcall.com/news/hawkings/congress-richer-ever-...
I think the Von Neumann machine bit is a vastly larger issue than people assume.

The Milky Way is 105,700 light years across. At voyager probe speeds that’s ~1.8 billion years. Stopping requires 4x as much energy, and cutting that time in half requires 4x as much energy. Worse slowing down to build a probe adds more time as does however long it takes to select targets, gather resources, and build several more probes.

On top of a huge number of issues could slow things down such as lost probes, or needing to avoid the center of the galaxy resulting in an even longer trip. Not to mention collisions, at a minimum you need to survive grain of sand sized collisions, but interstellar space may contain significant numbers of much larger objects.

Finally these probes would both come here, and stick around for us to see. A true space based civilization might have little interest in planets like ours, or have sent multiple probes to our solar system that failed.

It seems possible for hundreds of civilizations to all be expanding across the galaxy even if we have seen none of them.
The founding principle of North America is displacing unwanted people. Although the shift from John Locke's "justified" massacres to the somewhat less violent market forces is an improvement I suppose.

An improvement in the way living in an ancient car is an improvement over sleeping in small pox blankets.

But blaming an employee for living where he works is misguided, they're not the ones asking outrageous prices.
she is obviously struggling under immense pressure but doesn't change the fact that she deviated from given mission payed by the American tax payer.

Why is it suddenly wrong to state reality as is? She was an employee of the US military, and therefore liable for any damage she incurs to her employer, surely this is a matter of ethics (HN seems to have a really fucked up moral compass in general) that most people can see why it would morally reprehensible.
You mean self selected sample with confirmation bias on hypothesis that vaccine somehow makes them sick?

This is not really closer...
In terms of capsule spacecraft, by volume of recoveries, mercury/gemini/apollo using the ocean are actually a statistical anomaly compared to the total number of successful land based Soyuz + Shenzhou recoveries.
I'd be super curious to hear what the 3 meals are.
That would be horizontal integration. But that’s even a hard argument to make since Apple doesn’t have a monopoly or large market share of any of those segments — remember how Apple’s growth was supposed to slow down since their customer base has been saturated? Maybe luxury products but that’s a stretch. Apple isn’t vertically integrated since they outsource some of their manufacturing and assembly to other companies.
Ask HN: Any Recommendations for Winner Psychology?
Athletes and very successful people are so because they can perform well even after huge blunders. Tennis players lose from inferiors and then win the cup. F1 drivers always think they are the best even if they repeatedly underperform.

That would be true in startups and coding.

What are some good resources?
SpaceX actually showed a mock-up of what point-to-point travel might look like in one of their videos.
> Their numbers for 2018 are spending $1 to earn $1.05. Of course, they also spent $0.80 to tell people about it and another $0.30 in R&D to develop new businesses which puts them firmly in the red.

So their numbers for 2018 aren't spending $1 to make $0.50, they're spending $1 + $0.30 + $.80 = $2.10 to make $1.05, which is, I believe: $1.00 to make $0.50.
Ask HN: What are the most important innovations in human history?
I did that for e [1] and the program was no better than 50% correct.

[1] I have a program that calculates e to some arbitrary number of digits.
If by preventing you mean capturing killers after the fact and punishing them as a deterrent, yes.