skysight-inc/HackerNews huggingface dataset:
> Electricity generation efficiency from coal is only 25-50% according to [1].

25% efficient generation is from ancient garbage that has largely already been retired because it's uneconomical.

Combined cycle turbines have efficiency up to 64%:

https://en.wikipedia.org/wiki/Combined_cycle_power_plant

Power plants in active service are probably around 50% efficient.

> Heating efficiency of modern home furnaces is typically way above 90% according to [2].

That number is for the newest highest efficiency furnaces. By comparison you could say that commercial power generation with cogeneration achieves even higher efficiencies, but neither is widely deployed.

Existing furnaces are as low as 56% efficient:

https://www.energy.gov/energysaver/furnaces-and-boilers

The average for the existing installed base is probably around 80%.

Someone evaluating this for personal use might research the efficiency of their own furnace or compare the cost of installing a more efficient one vs. the net cost (possibly net profit) and environmental benefit of heating with electricity generated by rooftop solar.

> I'm treating natural gas the same as coal since, while the direct emissions are about half the CO2 per thermal unit produced, its production is much more problematic (esp. emission of methane) [4].

Then you have to count the same thing the other way when you're heating with natural gas. Fuel oil is even worse because it emits more CO2 per unit heat than natural gas and is extracted using the same methane-leaking process. Worse than that, many oil wells capture only the liquid fuel, have no infrastructure for capturing the natural gas and knowingly release it directly to the atmosphere!

Assuming your equivalence between coal and natural gas, that commercial power generation and transmission are 47% efficient (50% x 94%) and home furnaces are 80%, the percent non-fossil fuels needed for breakeven with natural gas heat is 41.25%. Some even lower number for oil heat. That's pretty much exactly the existing US average (and thus already ahead in places like California which are at >51%), and is only going to move in one direction as fossil fuels get phased out of the power grid.
68000 - ABCD. Really it’s just the mnemonic that’s nice. It adds BCD numbers.
Correct, I should really proof read my comments more closely.
That would be amazing, thank you. I've made an anonymous Google form you can send it to me through. It works in incognito, you don't have to log in anything. I don't get any information other than what's typed in the answer: https://docs.google.com/forms/d/e/1FAIpQLSdIusHNqZX-p5lAewZO...
As someone who grew up in Texas and is generally in favor of these sorts of "use of deadly force" prosecution defenses, I think I can at least articulate the motivations in a way that makes more sense, even if it's not convincing.

Many Texans conceptualize government and state uses of force (ie prosecution that can lead to imprisonment) as restrictions on their rights. This "negative rights" conceptualization is pretty common in the US, but especially common in Texas.

In the specific case of using deadly force to prevent somebody from stealing your property at night, the idea is something like the following. Absent any government intervention, you have a "property right" which allows you to prevent the thief from taking the property. In some cases, the balance of public policy concerns should lean in favor of government restrictions on this property right, to protect potentially innocent people or to prevent nonviolent criminals from dying, or to sustain an orderly justice system without vigilantes.

However, many Texans believe that the government should not intervene in this case because the restriction on an individual's right to protect his/her property is more important than the other policy goals.

Like I said, this is just my attempt to articulate the way I'd guess many Texans feel about this. I don't necessarily agree with all of the above.
I am not american, but I really wish it was legal to shoot thieves where I live.
I see no moral issues with that act - it's really simple to justify. First - why should I value life of someone who's actively robbing me? In my mind, the moment they attack my rights, including my property rights - I don't owe any moral consideration to them anymore, they broke the social contract with me, and I'm going to use anything at my disposal to stop them.
Second - if it's generally accepted that if you're gonna steal something you are putting your life on the line - that means people would think twice before stealing something from other people. You should fear for your life if you're going to try and violate other's rights, and I doubt there would be as many people keen on stealing something valued at 100$ by betting their lives on it.
And finally, when you're getting robbed it damages you. It's not even about the thing itself getting stolen, but more about the fact that the sanctity of your belongings vanishes and a bit of trust you had for others vanishes with it. Ask anyone who ever got mugged or had their house broken into - it's hard to feel safe after that happens to you once, ever.
I really don't think that someone who's a victim of an ongoing crime should ever stop and think about the criminal committing it as someone worthy of moral consideration at all.
It screws into either the cat, or the pipe right behind it. But it’s a separate part.
> How does the moral calculous work for Americans? Genuinely curious. Is it “something bad is being done to me, I am therefore justified to use any means necessary” kind of thing, or there is something else/more?

Generally speaking, it works just like it works everywhere else--we don't execute people on the street. We sometimes have the legal grounds to use lethal force in defense of our safety or that of our property (rarely, but apparently in Texas), and we very rarely choose to actually use it.

Intrinsic morals don't have a whole lot to do with laws.
There aren't really many benefits to single-page apps, outside niche use cases like "offline first" websites. People make single-page apps either because they're misinformed (see every single reference to Javascript enabling "flicker-free" navigation; modern browsers do not flicker when changing pages), or because they're trying to pave over performance problems caused by their single-page app framework.
Messaging courtland@indiehackers.com and mentioning HN worked for me. My account is too fresh to have invites.
https://www.youtube.com/watch?v=sv0iN5J-9mk
Show HN: I built a note taking application that can run shell scripts
I like using text files. I also like using shell script to automate most of the things I do. When using an iPhone I couldn't do most of these things. So I created a web application that would allow me to do just that. Basically it evaluates `!command` and ```! multi line code block ``` in place.

Honestly it is quite in the early stages but would like your feedback on it. Here is the GitHub page: https://github.com/satran/dabba
Yup. The systems you use while driving should be able to be operated by touch. Congress should mandate that.
Same. On mobile, most of the time I want my playlists to be shuffled. And Spotify recognises that in the UI. I know how to have it play in order which also works.
That's only one of his famous books. There is another about bugs appearing for no good reason on unexpected places.
That requires a certain level of intelligence to pull off.

Think of how stupid the average person you know is, and realize that half the population are stupider than that (another mental model I ascribe to).
No, it's not surprising, so why do we still not use indexes for this ?

NTFS maintains a journal of all files modification (https://en.wikipedia.org/wiki/USN_Journal). This is used by Everything (https://www.voidtools.com/support/everything/) to quickly and efficiently index _all_ files and folders. Thanks to that, searching for a file is instantaneous because it's "just an index read".

The feature is common: listing files. We know that indexes help solve the issue. But we still use `find` because there's no efficient files indexing strategy. Yes, there's updatedb/mlocate, but updating the db requires a full traversal of the filesytem because there's no efficient listing of changes in linux, only filesystems-specific stuff.

So we will still have articles like this until the situation changes, and it will still be relevant to the discussion because it's not "solved"
Fun fact: Dick Smith Electronics offered tech support for their products in an attempt to emulate Apple's Genius Bar. The official name for Dick Smith's support technicians? Clever Dicks.
The Information had a good article on this recently. In essence, starting a software start-up is less risky today than it was in VCs’ heydays. This is particularly true for enterprise SaaS. That makes the sourcing side of VC easier, which enables scale. Tiger is bringing wholesale fundraising economies of scale to VC. If their thesis, that the mean risk of a software start-up is lower and randomly distributed, and that VCs’ “value adds” in terms of coaching founders and picking start-ups is not worth the scaling cost, then they should replace VCs in this space. Counterfactual: Tiger has been investing in a historic bull market for technology companies.
Seems like it’s not needed now that scuba gear I is Cheap reliable and readily available. Why risk it.
jira stuff, so boring to create a new issue in jira
Just stepping away is in all likelihood exactly as much precaution as is needed: the machine itself ought to have shielding in all directions except the for the beam itself, so it doesn't emit significantly in the other directions anyway and getting some distance kills even that on its own.

Honestly, going outside as a way to ensure you don't stand in the beam by mistake might be the most important part.
Very impressive. Is there documentation for the parameters (they weren’t always intuitive to me)? How did you implement it?
> Only because the dust has already settled from the same thing that happened during the dot com boom and the consumer electronics boom and the mobile app store boom.

Yes, there were scams at the beginning of those booms, but at the same time, there were obvious real world applications that end users benefited from right from the start, and absolutely no sense of doubt that there was value in them.

>The entire scheme of copyright protection is an archaic method of introducing artificial scarcity for items that are cheap to reproduce (yet sometimes capital intensive to produce).

True.

> NFTs are no different.

Obviously false. NFTs don’t have the law preventing you from ignoring them.
> Given by the indigenous people living there.

Well, some of them called it something kinda-sorta close to that. Other groups of indigenous people called it by other names. Alaska Natives aren't one homogeneous group, by any means.

It's quite large, so it was visible to many different groups (on a good day I can see it from here, and it's about 130 miles/200 km away).

But Denali is definitely better than McKinley, no question about that.
Yes, nor flexbox nor grid are intuitive.

And Classic Holy Grail Layout is not a one-liner but this:

.ex5 .parent {
display: grid;
grid-template: auto 1fr auto / auto 1fr auto;
}

.ex5 header {
padding: 2rem;
grid-column: 1 / 4;
}

.ex5 .left-side {
grid-column: 1 / 2;
}

.ex5 main {
grid-column: 2 / 3;
}

.ex5 .right-side {
grid-column: 3 / 4;
}

.ex5 footer {
grid-column: 1 / 4;
}

For the note, in Sciter (flow+flex units) that is definable as

main {
flow:grid(1 1 1,
2 5 3,
4 4 4);
}

main > :nth-child(5) { /*middle section */
width:*; /* takes all available space */
height:*;
}

https://terrainformatica.com/2018/12/11/10-years-of-flexboxi...
The last bit from The Martian (movie) about how you just need to start solving problems: https://m.youtube.com/watch?v=mDYCLFE86Po
As TFA says
The pithy response is that it's not me deciding that your life is worth less than my stuff, it's you deciding that and me agreeing.
Agreed. Adding -j1 still leaves a very large (and wildly varying actually) number of futex calls shown by strace and slows down execution by another 1.5x. So, a little boost from threads but not much. Someone more interested (than I am) in "fixing" fd should study it more. Often people do not "special case" things like "-j1" to actually be single threaded with (no MT runtime overheads) but instead "launch only 1 worker thread" and such. Might taking hacking on fd to really test what is going on.
Their behavior is fine, but the problem is that there's no way to detect it.

If it was possible to check if the user had used the swipe gesture, then it would be possible to use that to control whether or not to display the custom animation, preventing a double-animation scenario.
I also agree that it shouldn't be a capital crime, but I don't think that automatically implies that deadly force cannot be allowed to prevent the theft in the first place. The distinction really comes down to your belief on public vs private use of force. On one extreme, you could believe that only the state should be allowed to use deadly force to enforce, on the other extreme you could believe the state should never use deadly force.

I would guess that many Texans who support the use of deadly force in this situation accept this difference. Personally I feel there should be no death penalty, but also believe individuals should generally be allowed to use deadly force to protect themselves and their property. I'm worried about cases or mistaken identity or collateral damage, but that should be an empirical question rather than one of justice.
Yeah, sorry, wasn't trying to accuse that's what happened. The mistake was still on the original poster for putting the wrong item in the wrong box.

I was just trying to make the conenction how Amazon could see it as potentially being scammed by claiming a return for AP1 but receiving AP2 in AP1 box. That's not the item agreed to accept as a return. Whether by mistake or knowingly, it was not what was agreed upon for the the return.

What is the right thing to do? Eat the costs? Sure it's Amazon, they can afford. So let's ignore it is Amazon and think in more general and hopefully neutral tones. Is the person making the mistake willing to pay for the shipping to return the incorrect item? No? Then what is retailer suppposed to do? Put it on a shelf, or just chunk it as it is trash to them.
I never said slashed zeros were unknown, just that conventions hadn't settled yet and were far from universal. Sometime you got a dot in the middle instead of a slash.

I don't know if OCR even existed back when this was published. If it did, it wasn't common.

The manual typewriter I learned to type on did not have a zero or one.
Your cash comp is low...they can't pay market rate after 4 years? The options are probably worthless, go for the salary at a new place. You missed out on $60k x 4 years.
It really is strange we don't have that yet.

We already pretend files are on the physical disk and sync it in the background. Adding smarter indexing to that shouldn't be a huge deal.
Memory throughput doesn't have a huge impact on performance in most desktop scenarios, and right now DDR4 is easily 3600MHz while DDR5 is 4800/5200.

4800MHz DDR4 even seems to be cheaper than 4800MHz DDR5.
>How does the moral calculous work for Americans? Genuinely curious. Is it “something bad is being done to me, I am therefore justified to use any means necessary” kind of thing, or there is something else/more?

In the USA there is what in known as the castle doctrine. If someone tries to break into your home you may defend your home no different than a lord defending a castle. Pouring boiling oil on their soldiers scaling your walls ... Or more appropriately the modern equivalent action with your AR-15.

Texas goes one step further, they allow you to use force to protect your property from nightime theft or criminal mischief. It's not about retaliation, it's a matter of protecting what is your property.
I will never understand the idea of "type". There are like billions people on earth and for some some reason all of them can be described as one of 16 types. Just that. There so many reasons that people do what they do and behave like they behave that you can't just simplify that to 16.
Yes, indeed most of the popular brands of laptops people are familiar with don't do their own electronic design (except Apple, since their schematics do actually say Apple on them; but then everyone knows they use Foxconn and others for the manufacturing). More details here: https://ctacs.weebly.com/news--articles/will-your-next-lapto...

The OEM model numbering isn't segregated, so e.g. the LA-H931P is the Dell in the article, but a LA-3481P is a Tohsiba Satellite A200 and LA-8133P is a Lenovo Thinkpad E530.
Usually those right click protections just popped up an alert on mouse down, so you could skip them by keeping RMB down as you left click them away.. after which the context menu would appear anyway.
At least in the US, major highways seem to have a "breakdown lane" that exceeds the width of a vehicle. So if you're pulled "to the side of the road" here there's a good chance you're still on the tarmac (although you might not be).
It's similar to "take technical risk or product risk, not both" with respect to starting a company. It's incredibly stupid to take both risks.
Usually processing other requests
I meant the ancient Roman Empire.
Your comments are summable with, "95% of attacks can be trivially thwarted by doing x, and there's other stuff we can do for the other 95%."

These are unserious, self-contradicting arguments, intended to muddle the issue. You're making inane statements that suggest infosec is trivial, then slowly ceding that it's not, while pivoting back to redirecting blame to the targeted companies.

The fact that corporations sign up to take on responsibility doesn't make them any less victims when they're attacked.

In sum, you're going to ridiculous lengths to absolve the actual criminals here by moving blame to the victims. We should all be angry at the companies, not the actual criminals.

This is a preferred misdirection technique, promulgated by Russian propagandists and the useful idiots who regurgitate them.
For https://tooltipr.com I am using

- tawk.to
- render.com
- No Payments implemented but will use Stripe
- Namecheap
- Google Analytics + Google Search Console (Search console is really good)
Instead of more surveillance and regulation how about we as a society work to ensure prosperity for everyone so there's no reason for anyone to want to scavenge trace metals from car parts?
What's the point of this page? :) Do you collect data for a research or smth?
If you send a hash, the hash itself effectively becomes the password. If the server is compromised or the hash is intercepted, the attacker has everything they need to authenticate as you.

With private/public key pairs, the same scenario would result in the attacker only obtaining your public key, which is useless without the private key.
This is just one dude's experience / opinion -- if this sort of stuff bothers you, I don't think there's any BBS that you'll like, since people pontificating is kind of what they're for
You can start your search on the Matrix official chat.

I’ve found a lot of interesting conversations in the distributed channels and IPFS channels, less so on company-focused or specific-blockchain-focused channels.
What inevitably happens when this is legalized is an individual without law enforcement background or training but with a gun ends styling themselves as a neighborhood watch and killing an innocent person (usually non-white, who in this case might be working on their own car). This prominently happened with Arbery and Martin.

People have looked beyond fearmongering at these policies, and unbiased research (which is why it is banned from being federally funded) always shows castle doctrine / other stand-your-ground laws are not a net benefit to reducing crime and lead to avoidable deaths of innocent people (https://www.rand.org/research/gun-policy/analysis/stand-your...)
Store-bought software was a co-revolution with home personal computers. Before then it was commercial oriented mainframe software. The mainframe computer manufacturers wrote some software; corporate users wrote some software; consulting software companies some for a rather small market.

Software stores didnt really get started until 1976 or so. Oregon Trail was 5 years before that. MicroSoft was an early vendor with BASIC for the Altair, then other PCs in 1975. I attended the first West Coast Computer Faire in 1977 where there were a few software vendors including MicroSoft. Floppy disks were just getting started. Alternatives were punch tape, cassette tapes, and telephone modem downloads.

The next big software revolution was downloadable self-installing internet apps, pioneered by Apple. In most cases this is just just 2 to 4 clicks of a mouse. No messy purchase of box in the store, copying multiple disks into the computer, and praying your license key was valid.
> I don't find it noteworthy that reading from an index is faster than actually recursively walking the filesystem

I agree, what I found noteworthy though is that git ls-files uses this index you already have for.

(author here, “proof”: https://cj.rs/contact/ & https://keybase.io/leowzukw)
It does
It solves real problem and it will be a solution for many people who can pay
It's about producing and marketing the product
I want to sell it for a company which take that responsibility and I get good profit
At this point clang and rcran should as well change their official names. Golang has better possibilities on the horizon, but it wouldn't hurt either.
HEURISTIC #1
When in doubt, chose the adventure. (Credit: Nietzsche)

HEURISTIC #2
What’s the right thing to do here, versus the comfortable one?

HEURISTIC #3
To make a thing inevitable, do as much as you can right now. For instance, to make it inevitable to take a letter to my office the next day, I put it inside my shoes. (Credit: BF Skinner)

HEURISTIC #4
If it’s popular and most people agree with it, walk on. Interesting and unfashionable is where the real fun is - and, likely, the values of tomorrow. (Credit: Peter Thiel, and, again, Nietzsche)
I recently listened to an interview with David Manheim on "Goodhart’s Law and why metrics fail"[1] and the key takeaways for me were:

- You need to be using several metrics, not just one or a few.

- You need a certain amount of noise in the system.

[1] http://rationallyspeakingpodcast.org/240-goodharts-law-and-w...
I built https://forwardemail.net to save money and time on email hosting/SMTP.
Is this open source anywhere? I'd love to take a look at the code. A compiler is on my short-list for my next project to use to learn rust.