skysight-inc/HackerNews huggingface dataset:
There were a lot of changes made in the Swift 1–3 time frame as the team learned what it was like to write Swift at scale and developed a unique language style. That’s all done now, and Swift 5 code (released 2019) should continue to be compilable with few exceptions long into the future. It’s different enough from Swift 1 that it’s basically a different language though.

The biggest source-breaking change on the near-term horizon (which is still in progress) is compile-time enforcement of concurrency safety.
Need to check my math but a heat pump that can do a COP of at least 2 powered by a 60% efficiency natural gas power plant should be more efficient than a 90% efficient natural gas furnace. That's not even counting a renewable/nuclear mix on the grid or say solar on your house.

Air source heat pumps are technically solar, they take heat from the outside air which was warmed by the sun.

Even better would be geothermal ground source heat pumps but the install costs and complexity are much more.

Electrification has so many advantages since your decoupling and abstracting power source from use, now your car or your house heating is not tied to a specific fuel.
> Parents that leave children into "schools" so they can get "bullied" and nobody protects them are committing cruelty of the highest order I can imagine.

The grandparent poster here is saying that this bullying is a feature not a bug, and that the bullying prepares you for adulthood! I don’t buy any of it, but that’s the counterpoint to what you are saying.
> another $10 per person on snacks and something to drink

Fair enough - Netflix doesn't charge $10 for snacks & drinks, but I don't get them either.

Similarly, a glass of wine in a restaurant is "overpriced" compared to drinking on your home cough from a liquor store.

What I mean is: make a fair comparison, please. Different experience, different price.

(Though I concur that Poland ticket price sounds much more reasonable)
probably not the why you were looking for, but 1914*.

cf Zweig, The World of Yesterday for the memoirs of someone who remembered a world without.

* iow, the start of the "short 20th century"
Source live in cold country. Heat pumps work lovely till -5 to -10. Then most folks start using extra heating.
If there’s no IRL activities to bully about, the bullies’ attention is likely drawn to other things more quickly.
I recently replaced a (very) old gas boiler with a new gas boiler after trying and failing to make an air-to-water heat pump make economic sense. (It 100% would have worked technically/thermodynamically.)

It was going to be a bit over $20K more, which at only 4% opportunity cost of that money (low, IMO), means that an $800 savings per year would literally never pay back, let alone within a 20-year projected service life. I’ll re-evaluate 15-20 years from now when it’s time to change again. (Eastern MA)
To reduce the impact of foreign intelligence agencies? Especially important in the EU nowadays.
Good to see GDB's watchpoints (https://sourceware.org/gdb/download/onlinedocs/gdb/Set-Watch...) get a mention. Often called Data Breakpoints in IDEs (which then, confusingly, often also use "Watch" for a different concept - argh).

Watchpoints, when they're suitable, are an incredibly powerful way to query your program's runtime behaviour (When does this happen? Why does this value end up here?) instead of stepping through and printing things / logging stuff.

They also fast, provided you watch values suitable for the CPU's logic to handle them directly. They need to be small-ish and located in memory for hardware support to handle it, otherwise GDB needs to single step.

(the `-l` flag is also important here and even less well known - it tells GDB you really care about the memory address the expression is stored in, not the expression itself)
I only see React framework authors ignoring Web Components.

Angular and Vue framework authors considered them good enough to spend development resources on adding support for Web Components, they didn't do it for fun and glory.
These days, JSON also has JSON schema that allows you to enforce the structure of a JSON file.

If you need a enum that only allow specific value, you just list it.
> Child abuse is actually more common in homeschool environments

Source?
Client not being able to put emojis finally found a budget for one legacy project to get some DB version upgrades...
In actual building construction they have as-built plans, which are the blueprints made after the fact which should correspond to how the building was actually built.

I think it would be a good engineering practice to have the same in SW.
There is also the sami peoples reindeer herding, safety, environmental impact, relocating, buying land. You could not decide things like this in a week if you have a system where human and ecological rights are respected.
The problem with XML is mainly in the 'M': it's a _markup_ language. Using it for configuration and arbitrary data serialisation isn't where its strengths lie, but it got shoved into those niches because if you look at it _just right_, you can make it work in them.

I don't hate XML myself, but I do hate how it's been abused over the years.
ARC (if ‘A’ means atomic) is simply not a good fit for modern hardware. With traditional tracing GCs you get blazing fast allocation and get to amortize the cost of deallocation, while you pay a price for ref counting on every usage (or at best on almost every usage with a good compiler).
> Homeschooling children will interact with people in the context of their parents in all places in society their parents visit

How is that different from other children?
I’m at a crossroads and evaluating whether to introduce jsonnet to my org. We are doing a massive conversion of legacy yaml manifests from a proprietary vendor format, and there are not a lot of chances like this where you can make such a change at scale. Any experience reports or advice on jsonnet would be appreciated.
Since it’s not constrained to the terminal, it can display headers in a large bold font, and body text in a non-monospace font.
I would quit within a month
They only “subvert expectations” in popular content.

First seasons and new IPs are fairly traditional and follow common writing tropes (although poorly, as if the knowledge has eroded).

It’s only when something gets popular that it gets the “updated for modern audiences” treatment.
There are a lot of countries that we in the west don't really care about that are aligned with Russia.

Kazakhstan being one example of a country that is so unknown to the west it was used for comedy.

There's also a lot of "ties" in that top 50 too, 49 is not an enviable position.

There are actually 90 countries that are stronger.
Maybe they meant RF base passport + the Cypriot paid DLC?

[Edit: no, it's actually very reasonable, on a par with Moldova and Georgia. Cyprus —which advertises in Cyrillic— is in the top 20]
A mobile antenna uses 15kw. It seem's a lot. Does someone know why?

Can you add more context to this? The most I've been able to push through a mobile antenna (HF) is 5000 watts. Finding mobile antennas rated for more than 5kw is challenging.
Having a heat pump transfer the energy to heating water that is then circulated in radiators is becoming quite common in the Nordics, and often used as a replacement for an oil burner. It's more efficient than a regular heat pump that just uses hot air to warm the home.

Of course dealing with crappy insulation can often be more bang for buck.
"The biggest thing I have noticed is the decline in the amount of sauce put on slices. I’m sure this is a cost-saving measure, but the overall quality of your average slice in the city has definitely suffered."

Yes, that's generally what happens with a _stupid_ "cost-saving measure", whicb our culture defends to the hilt for some reason.

There's ways to cut costs without compromising quality, called a _smart_ cost-saving measure, but our culture isn't about quality anymore, is it? It's all about saving/making money, but money doesn't taste very good, does it? I'd rather spend a little more for a quality piece of pizza than save money eating something that tastes more like cardboard than before.
It's not so much a worry as an efficiency thing. If your in a cold climate that needs resistive heat its a lot less efficient to burn natural gas at power plant at 50-60% then turn to heat with a resistor in your house, than to burn it in your house at 80-90% efficiency.

Thing about a heat pump is it basically turns into a resistive heater once it can't capture any outside heat, then you just have heat of compression.

This changes with a lot of renewable and nuclear power, but also heat pumps that can keep operate rating above unity in those cold temps really start making sense.
How do we understand, inside this model, that merge sort is easily stable but quicksort is not a stable sort?
They are still tons around, but I suspect some species of BS jobs a bit harder to spot:in essential areas, you know, those beyond inefficiency jobs which get stamped "legit" because it is in an essential area.
> The load also depends on unique characteristics of the home like the amount of insulation or the type of windows and doors. A home built in 1850 with no insulation requires more energy than a brand new home. The load is just a technical way to describe and measure all of this.

No kidding. The site is all about switching from carbon, which I am all for, as would anyone that cares even slightly about the planet.

BUT. If you do live in a 1850s house with no insulation, getting a heat pump is a colossal waste of money that will not do the job. No matter how many fancy biased graphs and numbers someone comes up with.

Any responsible heat pump installer will firstly look at your home to determine if a heat pump is remotely feasible. Unfortunately, in the UK, only very recent new builds can comfortably accommodate a heat pump. That or older properties that have had CONSIDERABLE insulation work done to them (and I am talking the expensive kind like internal/external wall work, not just the easy jobs like loft insulation).

Be very careful with heat pump cowboys, if you are getting quotes that don't include a site inspection, run.
1. Definitely, but Go is well very optimized for concurrent network apps.

2. I think the C# team has done very well modernizing. The runtime is a bit of a bother though.

3. There's Kotlin/Native and Kotlin/JS.

4. Python has dev speed and ML benefits.

5. If you're going this way, performance probably isn't your main goal?

All-in-all, Swift is interesting, but (IMHO) lackluster crossplatform support and toolchain is a problem.
In my house we only have electric heat available. When it gets too cold, the heat pump no longer keeps up and the resistive heater in the furnace turns on. It is more expensive to use the coils than the heat pump. It is important to understand the environment it is running in to accurately predict your energy costs. The previous owner should have installed one that could run in colder temperatures.
Some cautions

- noticeably lower heat output at cold temps.

- install is important, many installs done get adequate ventilation- so cold air collects near unit.

- high ceilings can be an issue, evaluate fans to bring heat down

- gas is amazing for heating in radiant heat. We really like our radiant heat experience- global warmth and good volume

- I’m not sure if tech term, but heat volume can be an issue. We are in a 100+ year old house. The heat pump in very cold weather seems able to generate heat, but no where near quantity that gas system did if you just cranked it

- we are getting hit with tier three electric rates - switched dryer to electric etc - costs get tough!
The heat pump I have installed reaches 1:1 at -20C, i.e. at that point there's no gain. But a) it rarely gets that cold around here, and at -10C it works fine - there was a dramatic (seriously dramatic) drop in amount of electricity I used during winter compared to before installation, and b) My heat pump was installed in 2010, since then they've only got more efficient and 1:1 is somewhere around -30C (or was, a couple of years ago when I last checked).

And what it does when it's really cold _and_ somewhat humid outside is that it detects when frost appear on the outside element, at that point it reverses the flow and uses the heat from inside to defrost the outside element. As far as I know it does not include any actual resistive heater for this (though I won't bet my life on that statement). It's been working very reliably all these years (except for a leak in the cooling fluid which appeared relatively soon after installation, promptly fixed by the provider). I have to get it cleaned now and then to keep up the efficiency. It's in every other respect completely without hassle.

EditAdd: The Japanese heat pumps sold in the coldest areas are "Nordic" models. They are extremely efficient. But in Japan, where they're made, you can't get them. Or at least, we could only find less efficient models. But I haven't been to Hokkaido yet, I'll have a look in the stores there to see if they have them there.
At current or predicted future electricity/gas prices ?

I can imagine having solar and using partly that (instead of selling it back to grid for pennies) might've skewed that too
It's -22C here this morning (-8f), and both of my heat pumps are working fine (currently 20.5C indoors). I have an LG, and a Fujitsu. The LG has an element inside the central air-handler as well, so if it gets too cold, you can switch that on to provide backup heat. I expected to need it last night, but the heat pump did fine without it.
I guess YAML has a place in that it would prevent that kind of thing happening in the first place.

YAML is easy to debug (thanks to having comment syntax) because it just deserialises into code. Sometimes it deserialises into code that compiles on the fly mind you which is never a good idea.

On the other hand one time I debugged a really nasty memory leak by dumping many megabytes of YAML then running git diff against the dumps. That was fun. Of course the client used the quick and bad hack rather than the demonstrably correct fix (thanks to the dumps) because they were frightened of their own code.
Our house (in Northern New England) has heat pumps (which we added in the last two years), a wood stove, and hydronic baseboards powered by an oil-fired boiler (which we now use as backup). The heat pumps so far are able to heat just fine, and are great for maintaining temperature while we aren’t at home. However, we much prefer the comfort provided by radiant heat: wood stove and baseboards. Once the boiler needs replacing, we will likely switch to a wood pellet boiler so that we can use the radiant heat more when it starts to get colder/before the wood stove had heated up in the morning/when we get home in the evenings.
In my experience as a school student there is very little you can do about it beyond making yourself a small target which comes at a fairly high cost.

You can make it worse once it happens while being on the receiving end of a wildly hypocritical lecture about how the school "will not tolerate bullying". Standing up to organised group bullying is folly.

As an adult you have many more cards to play than that and everyone knows it even if they don't know which cards you have or which of those you're willing to play; the doubt surrounding potential consequences for picking on you counts for something.

Precisely none of that improvement in lived experience comes from "learning to deal with it" and "socialization"

So that's my experience, others may differ.
Or if you want to go really minimalist there's also https://github.com/crdoconnor/strictyaml
Not everyone has lots of rare earths... USA for example has just 1.8 million tonnes, and Europe currently has no significant rare earth mines. Rare earths are everywhere, true, but it is very rare to find them in high enough concentrations to be worth mining.

https://investingnews.com/daily/resource-investing/critical-...
Ask HN: Have clouds fallen behind in state of the art GPUs?
None of the major clouds seem to offer anything like the latest consumer GPUs from AMD, Nvidia and Intel.

Why are clouds so far behind in GPU computing?
If you believe lack of insulation is the problem, the heat pump is just underpowered. A more suitable model or, even better, adequate insulation, would likely be a triple win financially, environmentally, and for your and your neighbors' health.
Looks promising but still only a mineral resource as opposed to a mineral reserve. Which means it may not be economical to mine amongst other the things.

Lot easier to publish/announce resources and most don’t go anywhere. (Been a mining/mech engineer for a while now)
I've always hated YAML, and now I'm glad there's a very nicely written article to back me up.

I also notice that I have a preference to procedural as opposed to declarative specifications. E.g. I find conditionals and loops in declarative specifications quite bad.
It's not about quality when they're reducing sauce to save money, as stated in the article. The slices may still be better than in any other state, but the focus has shifted from quality to price.
> Homeschooled kids tend to mix with a broader range of ages and geographic basis.

or with none or only other members of a religious cult and definitely not the kind of children the parent are biased against

the idea that a homeschooling kid from e.g. a very conservative christian family will have a less segregated experience is just funny

> same neighborhood

one of many many more reasons why neighborhood segregation is a huge problem (independent of weather it's by ethnicity, religion or wealth)

> same age

one of the thinks some of the nordic countries did change (through their suicide rates are high, but that is more a problem with the geographic location, i.e. not getting much (or any) sun-light in winter).
> Adults bully, too, so you do need to learn to handle it. Delaying that learning experience likely has both costs and benefits.

Adults have legal recourse, children don't.

If your workmate hits you, only he'll get fired if you defend yourself. In school, if you hit back at a bully, both parties are placed at fault.

If your company refuses to stop bullying, you can leave and get a huge settlement out of them, which is why they are quick to stop harassment when it is reported. In school, you can't leave, you are forced to endure and the school is never liable for someone mugging you of your lunch money.
Von Neumann spam?

Imagine a religious order like the space Mormons in the Expanse creating a self replicating evangelism bot. A few billion years later nothing in the galaxy with more brain power than a mouse can get through life without being asked if it wants to hear about another testament of Jesus Christ.

We do help seed millions of other advanced civilizations though since when they become smart enough they are able to learn a ton by reverse engineering some of the millions of dead probes littering their planet and every other celestial body. Their first messages into the cosmos are variations of “okay which one of you bastards did this?”

Nobody is ever able to figure out the meaning of the probe’s message and humanity is long extinct.

Not meaning to diss Mormons though. If anyone built a generational ship I can imagine them doing it.
I will stick to JSON or TOML if the choice was mine. Hell, I'd much rather deal with XML than deal with YAML.
A.I.’S Best Trick yet Is Showering Us with Attention
They work pretty well, I live in the 2 hours north of Quebec City and it works most of the winter. Today is the first day that I turn it off as it's -22C outside, but as soon as it's -19C it could work again.
I'm a air-to-air heat pump owner and I love it and think they will be a key part of climate mitigation.

However, from a climate change policy perspective, it is important to _emphasise_ that heat pumps are less efficient at lower temperatures (lower COP) and not try and pass this off as a myth. (I recognise this article is presenting the 'myth' as operating at a COP of < 1, but many people will misinterpret that)

To put this in perspective in the UK, in mild weather demand is something like:

- about 40GW total electricity demand

- about 100GW of gas

In mild weather, my heat pump gets a COP between about 3 and 4. Which means that, if we want to replace gas usage with heat pumps, we need a further 25-33GW of electricity to power the heat pumps.

This is eminently achievable. See here https://twitter.com/heatpolicyrich/status/161238524325157273... and the latest edition of the economist quotes there being 260GW of wind projects in the pipeline for the North Sea (amongst 9 countries): https://www.economist.com/leaders/2023/01/05/why-the-gusty-n...

In extreme cold snaps, total gas demand doubles to about 200GW, and electricity goes up to maybe 60GW.

The problem is that now the heat pumps are getting a COP of maybe 2, if you're lucky.

So now in the UK we need 100GW of electricity to replace gas, which is a big ask even when the wind's blowing. At the moment, wind output peaks at about 21GW, though records are being broken all the time.

None of this is to say we shouldn't switch to heat pumps where possible. Mine was cheap to install (£1,895+vat) and has halved my gas usage. Must be one of the most cost effective way of mitigating the current gas crisis (after reducing usage!). I think it's just worth understanding some of the important numbers.
Mine cuts off at 35F and I have to manually switch on the oil. I live where winter is normally below 35 at night. Very annoying system. (I didn’t pick it)
I have a heat pump in New England, and it works but damn is it expensive right now. I think I need to upgrade to a bigger pump. My aux heat is kicking on semi regularly, and the heat pump is running it's reverse cycle pretty regularly.

I think heat pumps are an absolute no brainier. They work great for AC during the summer, and they heat my house really cheaply in the fall. I'm disappointed in my pumps winter performance, though.
Right so if there was a lane change right before the Tesla stopped then it makes sense that they might have at least partial liability for the second car. But they will probably have zero liability for all the other cars.
Would this be legal to do in other countries that have actual standards for paid annual leave?
Doing those things will take time, sure.

But making the decision whether those things should be done should not take long.
He lost a bunch of imaginary money? Ok so? He's still wealthy beyond the ability to ever spend it.
Same reason you do not invite local “unhoused” meth addict to live in your spare bedroom. There are significant negative consequences from crime to destruction of high trust society.
$20k sounds a lot to me. What peak power did you need (BTU/h or kW)? Have you shopped around for offers?
Crypto should be designed so that its creators cannot profit from it...
hehe, I guess they loved CoffeeScript and/or minimalism. But if I want F# features I'd rather use F# and compile to JS with Fable, or simply use ReScript which is more sound than TypeScript any way. If I should learn a new syntax, why not get a better type engine in the process?
Countries usually decide whether to grant visa-free travel based on the likelihood that travellers from that country will become illegal immigrants. For Nepal, this is considered very likely. For North Korea, it's exceedingly unlikely, because it's so difficult to leave the country in the first place, those who are allowed to leave are carefully vetted, and their family back home is essentially held hostage to ensure they return.