skysight-inc/HackerNews huggingface dataset:
Paul Martin is not a valid authority on this. He is a known anti-hydrogen skeptic and had made many nonsensical claims about hydrogen. The most notable is perhaps his limited understanding of how fuel cells work, and his claim that fuel cells can never dramatically exceed the efficiency of diesel engines.

This is false, as fuel cells are electrochemical systems that do not follow Carnot's theorem. Which is to say that it is fully possible to build a fuel cell that greatly exceeds the efficiency of diesel engines.

Not to mention that most of his claims are from some years ago, and are becoming obsolete even if they were true. He has not commented on (AFAIK) about the effects of subsidies nor admitted that costs are dropping rapidly. He just sounds like another anti-renewable skeptic similar to those that criticized wind and solar.

It's worth mentioning that all of them are similar in a way: Old, retired or nearly retired, and usually coming from in the fossil fuel industry. And yes, Martin is from the fossil fuel industry, and has no experience with hydrogen beyond its existence as a feedstock for oil refining. He has never had any experience with modern hydrogen-related facilities, equipment and concepts.

Engineers that actually do have experiences with those area do not agree with Paul Martin. So there are alternative viewpoints from knowledgeable people. You can look at recent statements by BMW and Bosch, including what their engineers have said. They are clearly believers of the idea:

https://www.repairerdrivennews.com/2022/09/01/bmw-bosch-anno...
This whole debate is funny because it's exactly what the game itself is about. Everyone sees this as a very clear, unambiguous thing, and the other side must be misunderstanding it. If only I explain it the right way, they'll be forced to concede to my point of view. It's the only valid one! They can't possibly understand it and come to a different conclusion!
> But you can fly a plane across the globe without going through 15 separate immigration rituals, so for most practical purposes (obviously excluding things like no-fly zones or bomber planes) the plane is not "in" any of the areas it passes over.

But you were specifically instructed to not use any laws local to your jurisdiction, and that's why this can happen. The 15 countries it flew over are members of the ICAO, which delegated some of their sovereignty to the common good of easy air travel. It could have easily worked out some other way; fly over our country without stopping for immigration, and we blow up your plane. (You can see this in action if you fly your plane from Canada to do a low approach over the White House. You probably won't be home for dinner.) Similarly, in the US, the FAA decides who can fly over your property and how low. These are not universal constraints on existence, just actual laws that people wrote down because nobody could agree on the details. I'd venture a guess that if you asked the average property owner if airplanes could fly over their property and stare at them in their hot tubs, they'd say "no". However, the law simply doesn't agree with them, and a satellite is photographing your underwear as we speak!
I too was once very excited that OpenAPI specs I had access to would save me untold hours in implementing an API for a service since I could pass them through a generator, only to find once I tried everything seemed somewhat broken or the important time saving bits just weren't quite ready yet.

That was about five years ago. :/
> In a way I regret having said what I said about obscenity—that's going to be on my tombstone. When I remember all of the other solid words I've written, I regret a little bit that if I'll be remembered at all I'll be remembered for that particular phrase.
To me, if I see a rule trying to ban "vehicles" without defining "vehicles", I take my concept of "vehicles" by deduction: I think about all the ways that things that I know of as being "vehicle-esque" could be problematic in various different ways such that you'd want to ban them — being loud; having a lot of inertial momentum when colliding with pedestrians; littering (the horse example); property damage (skateboards, dirt bikes) — and then I guess that the "spirit of the law" is to put whatever requirements in place would be required to reduce the instances of those problems.

The banning of certain explicit classes of vehicles is only a byproduct, not the end-goal, of such a rule; and so it doesn't actually matter what is or isn't a vehicle — the word "vehicle" in such a rule is acting as a conceptual stand-in for whatever things cause uniquely vehicle-in-the-park-ish problems; and anything that doesn't cause such problems, isn't "a vehicle."

I find that this lens on rule enforcement is a useful guide, because whatever the text of the law ends up saying, the enforcement of the law will hew to the spirit that the text of the rule is being interpreted to have, by those charged with its enforcement. (I.e., the non-working tank is almost certainly a "vehicle" by any definition a bylaw would pose, but if they deliver it to the park on a non-damaging sled, let it sit there for a while, then haul it away on the same sled, then it's not causing any of the problems that "vehicles" cause, and so it's very unlikely that any bylaw-enforcement officer would actually ticket the owner of the tank for having it in the park.)
He watched the US disaster with Iraq and was like “oh yeah? hold my vodka…”

He even spread lies about Ukrainian bio weapons (WMDs!) in an echo of the Iraq war buildup BS.

Someone should have told him that Iraq was a disaster for the US and is now widely regarded as such by most of DC (whether or not they say it in public).
Invading Ukraine also made no sense and was a horrible miscalculation.
No vehicles in the park is a rule for the people that use the park. The emergency vehicles aren't 'using' the park so it doesn't apply to them.
layers upon layers of abstraction. Windows testing every single application in case it needs to drop down to 32 bit or windows 95 compat. Security checking, telemetry, theming, spinning up GPU to draw what you see.
You are completely off.

Why don't you try to do a Fermi estimate before voicing your concerns? Maybe things are not so bad.

Steel is one of the few materials that humans produce in quantities exceeding one gigaton per year (the other ones are coal, oil, natural gas, concrete, and 4 agricultural crops, sugar cane, corn, rice and wheat).

A lot of steel is recycled. It depends how you count, but between 60% and 90% of steel is recycled. Still, a lot of steel is produced out of iron ore each year.

Currently to make a ton of steel out of ore we emit about 2.2 tons of CO2, including upstream emissions[1, page 26]. If we make it from scrap steel, we only emit about 0.4 tons of CO2. It is projected that by 2050, both emissions will go to 0.1 tons CO2-equivalent per ton of steel.

The article mentions an energy density of 11.3 kWh per liter. Iron has a density of about 7.9 kg/l so, we're talking about 1.4 kWh per kilogram. From the article, we learn that the way the energy will be extracted from the iron powder is via burning in a regular thermal power plant. Good power plants now have efficiency of up to 64%, but let's says with the new fuel, they'll just produce 50%. The charging part will probably be more efficient, but let's say the round trip will be only 20% efficient. So what? This could still turn out to be much more economically efficient than hydrogen, or any other alternatives. If you want, we can do some estimates there too, but your concern was about emissions, not about profitability.

Let's focus on emissions. Each time you burn one ton of iron powder, you generate (assuming 50% efficiency) about 0.7 MWh of electricity. In the US, on average, in order to produce that much electricity, you emit about 0.5 tons of CO2-equivalent, according to the EPA. If you charge and burn one ton of iron only 5 times, you come out ahead. But you will charge and burn it hundreds if not thousands of times. It's just iron, it's not a battery that degrades over time. It's iron powder, after each round trip, it's iron powder again.

Each ton of iron powder can potentially reduce emissions by thousands of tons of CO2 equivalent. Each year all of humanity emits about 50 gigatons of CO2 equivalent, gross. The planet absorbs about half of that. A fraction of a gigaton of iron powder could help us get rid of all of our emissions.

This thing here could be a revolution. Until now, I thought that our only economic way to store long time or transport long distance electricity is hydrogen. Iron powder solves so many problems with hydrogen.

Feel free to criticize it, but don't simply be dismissive. Bring information to the table, so everyone here can appreciate it was worth their time reading your comment.

[1] https://rmi.org/wp-content/uploads/2022/09/steel_emissions_r...

[2] https://www.epa.gov/energy/greenhouse-gases-equivalencies-ca...
We are all the 11%
The touchpad is probably the single best thing about Macs since ~2015. I remember going to the Apple Store and messing around with the Macbook Pro I was hooked on how responsive and useful the touchpad felt, and led me to buy one.
I bet while you “weren’t doing in person coding tests” as a developer you also weren’t making the type of compensation that the people who were “grinding leetCode and working for a FAANG” (tm) r/cscareerquestions.

I use to brag like you, about “not doing take home test” for 25 years. Then I landed at BigTech and saw that returning interns were making about what I made two years earlier at 45.

I’m not complaining, my goal had been to get into $BigTech in 2020 and relocate when my youngest (step)son graduated I did so without a coding interview and without relocating by pivoting to “cloud consulting/application modernization” (cloud + enterprise application architecture/development). But I tell my younger relatives to practice coding interviews and go for the most compensation possible.
> It was a cesspool

No it wasn't. It was an open, relatively honest and fun place that was more representative of the world around them then the politicized "safe space" cesspool that it became.

> What made reddit great was the era after this, when many subs were then removed for promoting hate

Did atheism, politics, news, worldnews, video and every major sub get banned? It just became concentrated and biased hate.

> This was the time when more people started to trust reddit more

No. It became a safe space and an echo chamber for a class of morons because it censored another group of morons.

What you mean is that you got to spew hate without any pushback. And that's why you liked it.
I, for one, welcome our new oceanic overlords. We need a new direction for our civilization, and more whalesong is one I can get on board with.
https://archive.is/jtwBf although it does seem to span two pages, and the link to the second half is not clickable in the archived snapshot. It’s weird how the original page decided to make the video available to everyone but the transcript available only to logged in users. And it’s unfortunate that the transcript is only available in part even in the archived snapshot of the page.
that would have been Henry VIII’s book
I mean sure, why not; but unless they want to open source your interview code, that license doesn’t really have teeth. Just another reason to decline take-homes, IMO.
One doesn’t go public on camera and say “we crossed the border back to Russia, we enter Rostov, I’m not stopping, if you stand in my way, I will destroy you” to later say “da, sorry, it was silly, stupid me, sorry, I swear I’ll be good comrade”.

The guy is either dead soon or it ends up in fights in Moscow.

He said openly on camera that the Russian MOD started a war while Ukraine and NATO didn’t pose any threat to Russia. There’s no going back. He closed all doors.
I love it when people who are smarter and more qualified than me refuse to do take home assignments. Gives me a better chance to get the job!
Just got a quote last week (US east coast, mid-atlantic region) for $2.07/W DC with a 1.26 DC/AC ratio (9.6KW panels, 7.6KW string inverter). After 30% tax credit that’s $1.45/W, which might finally push me over the edge to install. My previous quote last year was about $2.36/W and in 2017 was about $2.85/W. So installed prices are definitely going down, at least in some parts of the country.
That sounds great. I would like to try playing a keyboard with dynamic tuning sometime.

I should have mentioned that I was a teenager in the early 1970s, and the only pianos I had access to then had strings and could not be retuned on the fly. In retrospect, I came to feel sorry for my teacher, as being conditioned to the arbitrary standard of A=440 prevented her from enjoying playing music on many of the pianos she would have happened to come across.
You can fly a plane across the globe but the plane's flight path must be approved by each of the 15 countries before it is allowed in their airspace.

The countries often ask for passenger lists and manifests before they allow your plane to do so and have, in the past forced planes to land to get to passengers or suspected passengers on the plane they have an interest in.

https://en.wikipedia.org/wiki/Evo_Morales_grounding_incident
Typical, sure, but not required!
Should 9 day old account be allowed to control the rank of articles on hn?
Just like the light bulbs: https://youtu.be/j5v8D-alAKE.
It shouldn’t be surprising. Unless you’re operating outside of a regime of democracy, you have to convince the majority (i.e. very dumb people by academic standards) that it’s worth it.

7th graders control your budget.
Also, you can very clearly see at 1:10 a 35mph speed limit sign, while the speedo clearly says 39.
In case anyone else is wondering: I instinctively checked the redacted areas, and there is indeed nothing there but a black rectangle.
Wondering why it refuses show on an iPhone pro max? The display resolution is 2796 x 1290
Even simpler than that, something like bsd ports distfiles checksums, or go.sum, or whatever. If you depend on something, you should know what that something is, and you should have some measure of it in your code/project.
being afraid of all free linux distros going away because no one invests in open source is some epic level FUD.

How exactly do you think those companies even came to exist again?
I really want to know if orca attacks are actually happening with more frequency or just their reporting has increased.
> Even the most obvious-seeming judgments are, in fact, not obvious.

I kind of disagree with this. The question leaves the definition of "vehicle," "in," and "park" purposefully ambiguous, so everyone kind of tries to fit the most "common sense" solution. In fact, I'd contend that the rule "life of a person outweighs park rule" is not even remotely controversial (apart from some maybe unreasonably staunch environmentalists). This is why our legal code is pretty exhaustive (and moderation systems should be, too).

With that said, there is plenty of grey area even with extremely exhaustive rules: see abortion, euthanasia, animal rights, etc. I think that this is what the website tried to do, but sort-of failed because it purposefully got us wading through a semantic quagmire.
How Your Attention Is Auctioned Off to Advertisers
When you're a gun nut, everyone's a threat.

Something something everything's a nail
This is why Reddit is banned in Indonesia; because there's a bit of porn. Now laypeople just use Twitter instead...
11% here too…
> I think it would make an intriguing alternative to voice calls

'talk' was an everyday tool back in the 1980s and early 90s that sent characters as they were typed. I just checked and it's installed on my Mac today. It's person-to-person, not group chat, but there's something magical about seeing every keystroke in near-real-time. You can feel the person at the other end.
Yes, I think it's reasonable to consider a wheelchair to be a vehicle. Especially the motorized ones.
tl;dr probably from a sick animal, maybe from a lab, no smoking gun either way. Probably not engineered or lab-adapted.
It's not that people go anywhere. Google and Facebook hand then news and they never go anywhere else on their own initiative.

If this is your first introduction, then perhaps your news-seeking routine is limited as well, in that there is legislation in major economies like France, Australia, and Canada who legislated breaking this stranglehold-money wise at least no one cares about an informed populace.
I’ve been sharing videos like this for a month or two

I have a 2015 MacBook Air I abandoned recently for being so painfully slow to use that I had almost not touched it for months. I have an iPad Air 2 that is basically unusable at this point. Both are 2-3 orders of magnitudes faster than those old computers that work instantly.

But windows and web apps are super slow now too

Think of all the landfills and wasted work hours earning the money needed to fill those landfills. The heavy and rare metals

This is proof that if computers were 10x faster, they would run slower than ours today, because in the past we’ve seen that be true over and over. The software companies will just make heavier and heavier programs and operating systems until we have gained nothing but a significant amount of co2 emissions
I don't know, I've never worked in these professions.
> You don’t seem to be paying attention to the words “vertically integrated” in my question

That's because vertical integration doesn't actually solve the core problems.
I think it goes even beyond that. Online you can get a lot more socioeconomic, age-related mixing than IRL. On some websites there is a large contingent of actual children/college students who have never worked or don't understand certain social norms due to inexperience. Or, if you live in a bubble of highly paid professionals like many on this site (honestly, including me), you can be completely shocked seeing how the working class people you see but don't actively converse with (beyond pleasantries) think.

Also, on pseudonymous sites, you may not even be able to know this at a glance. Sometimes on reddit I have been baffled at the replies I've received, until I realized it was coming from a child, or an older conservative person living on disability.
Regulatory capture by electricians
The "pulled a wagon" one is another aspect. Is the answerer assuming a vehicle pulled the wagon? I immediately wondered if the wagon was pulled by hand or animal or a vehicle.
afaik they still call the mothership regularly
That is exactly the point - who defines racism? sexism? Moderators are going to disagree because of how nebulous those terms are
Take home tests are bad. Fizzbuzz questions are bad. Multiple onsite interview rounds are bad. Behavioral questions are bad. Leetcode style questions are bad. Collaborative coding tests are bad.

If you ask the majority of job seekers here, the only correct way to hire is to hand out 300K/yr offers after a casual 30 minute chat.
A strange document. Clearly written for public release but containing reactions of apparently sensitive clarification markings.

Moreover it contains absolutely nothing of well publicized US involvement in relevant coronavirus research with WIV.

I'm definitely curious of what DOE facilities have scientists and researchers who would have useful opinions on coronavirus. This article just reminded me more of that question.

Very strange paper.
The question is, does it prescribed burn cause more air particulates than a wildfire caused by too much underbrush?
What would it take to add an adapter to or port Diaphora to Ghidra?

A bunch of open source Ghidra plugins, some ported from IDA:
https://github.com/fr0gger/awesome-ida-x64-olly-plugin/blob/... ctrl-f 'diff', 'bindiff'

ghidra-patchdiff-correlator#how-does-it-work:
https://github.com/threatrack/ghidra-patchdiff-correlator#ho...

https://ghidra.re/ghidra_docs/api/ghidra/python/PythonPlugin...

ghidra-jython-kernel + jupyter_console:
https://github.com/AllsafeCyberSecurity/ghidra-jython-kernel

ghidrathon
https://www.mandiant.com/resources/blog/ghidrathon-snaking-g... :

> Ghidrathon replaces the existing Python 2 extension implemented via Jython. This includes the interactive interpreter window, integration with the Ghidra Script Manager, and script execution in Ghidra headless mode. You can build and install Ghidrathon using the steps outlined in our README to start using the features described below [...]

> Alternatives: Ghidrathon is one of multiple solutions, including Ghidraal, Ghidra Bridge, and pyhidra, that enables Python 3 scripting in Ghidra. Each solution is implemented differently with accompanying benefits and limitations. We encourage you to explore all solutions and choose which best fits your needs.
A wheelchair is used for transporting a person.
I mean, it goes both ways. I feel that I am a fairly proficient engineer (built something with 10M+ downloads) but for a long period of my life I would do fine in every part of the interview except the part where you just chit chat a bit. I'd try to tell interviewers about myself and the smiles would just fall off their faces.

It took me a long time to understand that these sorts of conversations had their own "rules" to them, which I had to follow if I wanted to do well. These rules, of course, have virtually nothing to do with programming aptitude or ability, and seem to me, somewhat cynically, to be another way by which interviewers can allow their own biases to enter into the interview process. For instance, one time I got rejected because I seemed "too excited" about my personal side projects; it was deemed that I wouldn't be as excited about the work that I'd do at the company. Of course this is nonsense; I'm now happily employed and pretty excited about my work. I have plenty other examples of me saying reasonable things in interviews and being rejected for that reason.

There's really no silver bullet here. Getting rejected is always going to piss people off.
I mean, this is an online poll. There are always going to be people who argue, "technically, shoes should be considered a vehicle!". But when it comes down to it, those same people aren't going to make content moderating decisions based on those philosophical arguments. These examples fall sorta flat for me because they don't present an actual difficulty with moderation, just an imaginary one to get people arguing over semantics. Such arguments should be ignored.
> which way you want it applied and why

In the case the article has in mind, you can't silently decide what is ok and what isn't, as they'll be public decisions that create precedents (what formulate as "being transparent")

If you say wheelchairs are OK because disabled people need them, someone will ride a golf cart arguing they're disabled and need a cart. And you'll have to publicly explain if you think it's not ok and update the rules accordingly, and that will continue for every i stance of you not agreeing with someone's interpretation.

Put another eay, that constant and endless redrawing of the rules to explain what you had in mind is the point of the exercice, except you can't throw away the old rules nilky willy, you're only allowed to add more weird stuff on it
If the park is in my neck of the woods, I can just use this definition:

"vehicle" means a device in, on or by which a person or thing is or may be transported or drawn on a highway, but does not include a device designed to be moved by human power, a device used exclusively on stationary rails or tracks, mobile equipment, a motor assisted cycle or a regulated motorized personal mobility device

[BC Motor Vehicle Act, 1 Definitions]

https://www.bclaws.gov.bc.ca/civix/document/id/complete/stat...

The words written on some sign on a road or park are not meant to be freely defined by whoever happens to be reading the sign.
You don't need guardrail s on startrek ... You need the right color shirt!
These people did in fact have a business. “MusicMuv” was a corporate entity they created, the entry became a trusted YT content ID provider

(From the article)
The Magic of Embeddings