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ajnin

3,349 karma · joined November 1, 2014

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ajnin··on Show HN: A new way to do footnotes
My favorite way is how French website "Le Monde Diplomatique" does it : the footnotes appear at the bottom of the screen in context as you scroll so that only those referred in the currently visible text are displayed. It avoids awkwardly clicking on tiny superscript numbers and annoyingly scrolling back and forth between text and footnotes. For an example : https://www.monde-diplomatique.fr/2021/01/PIGEAUD/62633
ajnin··on Mildly interesting quirks of C
I wouldn't call function typedefs a quirk, they seem pretty useful and common, at least in my world of hobbyist microcontroller programming.
ajnin··on Barilla passive cooker
Might still be better as efficiency goes up with temperature and industrial generators can achieve much higher temperatures that what you can at home, and also include some clean sources of energy into the mix.
ajnin··on CT scans of batteries
The article mentions in passing that "The negative electrode is copper; its yellow color in our visualization means it’s denser than the other materials in the battery." So presumably the blue to yellow scale corresponds to material density.
ajnin··on Write better error messages
How many interactions didn't you have, because the developer read the error message, read the Wiki, and ultimately solved the issue themselves ?
ajnin··on Google is shutting down Stadia
No-one at Steam ever actually said that, and I highly doubt they have the legal and contractual standing to do so if they wanted.
ajnin··on Paving the on-ramp to Java
You'd be limited very quickly since Java does not have local methods. This would work for only very simple scripts that fit in a single method.
ajnin··on Intel Failed Science
I recommend the "Privacy Redirect" browser extension which redirects Twitter to Nitter, which is incomparably more usable, especially not logged in. It will also redirect YouTube and Google Maps to Invidious and OpenStreetMaps respectively (and other services as well). Main issue is that the provided list of instances is not reliable so some weeding out is required at the beginning.
ajnin··on Factorio is coming to Nintendo Switch
However Factorio lacks refactoring tools, tests and source control. If your code feels very similar to your bases maybe you're not using these things enough...
ajnin··on Cancer breakthrough is a ‘wake-up’ call on danger of air pollution
Are all PM2.5 equal ? It seems weird to me to lump into one category various things like car exhaust, wood fires or agricultural emissions.
ajnin··on Korean nuclear fusion reactor achieves 100M°C for 30 seconds
Rough order of magnitude calculation, the Earth receives about 1000W/m^2, that's 6370km^2 * pi * 1000W/M2 ~ 1e17W, and according to Wikipedia the global energy use of humanity is 7050 millions tons of oil equivalent per year so 7050 * 11.63TWh / 1year ~ 1e13W. So we have about 4 orders of magnitude of difference here. Does the human heat output make any difference? Probably not.
ajnin··on Hydrogen production from the air
Are we sure about that ? I must admit I'm not a geologist, but CO2 has a different chemistry as methane, it becomes acid when dissolved in water, how would rocks behave when exposed to acid for thousands of years ? Are the rocks still gas-tight when they have been emptied, which causes movement and potential fractures, or when fracking was used for extraction ? How does it work to pump back CO2 in the same field you extract methane from ? Do we even have enough room to store the massive volumes of CO2 were generating ? An accidental release of such a store of CO2 would be a disaster of enormous proportions.
ajnin··on Hydrogen production from the air
> "Hydrogen is the ultimate clean energy."

This is a lie pushed by oil companies. First it is incorrect because hydrogen is not a natural energy source, it is a way to store energy. But above all, currently the vast majority of hydrogen is made by steam cracking methane or other hydrocarbons, which is a process that releases CO2. You can think of hydrogen production + hydrogen use as a combustion with additional steps. And since the hydrogen supply chain is very inefficient (hydrogen is very light so you need to compress it a lot to store it, it is a very small molecule so it leaks very easily, and when you use it you need to decompress it so you get more losses due to thermodynamic effects) it turns out as quite bad from the point of view of CO2 emissions. It is just a way to sell more oil.

ajnin··on Three papers highlight results of record yield nuclear fusion shot
I think a condition needs to be inserted between a) and b) :

x) require preexisting conditions not present in the Universe, or

ajnin··on A meteor or alien tech: Harvard professor plans UFO expedition
These are not rare earths, rare earths are a family of chemically similar elements close together in the periodic table that are not actually that rare geologically. Platinum and iridium are just rare elements.
ajnin··on We're improving search results when you use quotes
> I think on average this kind of "semantic search" works out for the better, for most people, most of the time.

Let's say that maybe before this "magic" was introduced, people needed to refine their search a few times but eventually got what they needed. But now, the majority gets a relevant result on the first time, but a few percent of searches don't go anywhere because you can't find a way to trick the AI and people eventually give up. You've improved your average metric, but arguably the search is worse since a few cases fail completely, when before they took just a bit more effort.

ajnin··on Alpine Linux is reducing dependencies on Busybox
linuxserver.io uses s6-overlay for all their images, which are very popular in the self-hosting community.
ajnin··on 20B-parameter Alexa model sets new marks in few-shot learning
It's not distinct, the second action depends on the first one being finished.

I think this highlights that AI assistants are not really "I", they are good at doing fuzzy, hard to specify things like understanding speech, but there must still be an engine behind that interprets the text and transforms it into execution steps, and that must still be done by developers so it will be limited.

ajnin··on Black Widow Pulsar Sets Mass Record
I think it's an interesting question, it got me thinking a little bit (ianap). If you break down thinks at the microscopic level, angular momentum seems to not be a thing in itself, but rather a combination of momentum and some force that keeps things from going away from a center, like gravity in the case of interstellar gas, or chemical bonds in the case of a solid object. So what gets transferred in the end is momentum of all the gas particles that get assimilated in the neutron star. That begs the question, what is momentum? I don't really know, I guess it's a fundamental property of matter that can't get broken down further.
ajnin··on The night I met Einstein (1955)
* pourriez ;)
ajnin··on Absurd Trolley Problems
Agreed, I think the utilitarian approach that goes something like "let N and M be two integers so that N > M, then N human lives are worth more that M human lives" (with subtleties related to age and so forth) is very, very dangerous. It can lead to all sorts of atrocities in the name of some greater good. My approach is to never pull the lever unless 1) I would get killed or 2) humans would get killed vs something non-human on the other track.
ajnin··on Stockfish vs. ChessBase for GPLv3 violation: court hearing soon
It's going to be interesting because it's in Germany, which is in Europe. There's been a recent court case in France that ruled that copyright claims based on the GPL were invalid because it is a contract, and you can't claim both copyright and a contract on something, so it should be dealt with in civil contract court. (Or in other words, granting a license like the GPL invalidates all copyright claims you might have in the future!)

The article is quite light on details, I wonder on what exact grounds they filed their claim.

ajnin··on Variations of Two-Transistor Circuits: A Tribute to the Versatility of MOSFETs
The article mentions that circuit 23 was found using an "exhaustive search", so presumably using an automated means.

But I don't think that works in the general case to find all "useful" circuits. For example figure 27 is a pA source and requires 2 precise control voltages and a clock source. 39 is a peak detector. Does not seem that easily encoded.

ajnin··on Progress toward fusion energy breakeven measured against Lawson criterion
That's basically what's going on with ITER, it needs to be so massive because the technology available at the time of conception was not capable of generating more intense magnetic field. There is a very strong relationship between the strength of the field and the required size of the tokamak (hence time and cost of construction). By the time you're done better technology will be available, but that's how progress goes.
ajnin··on Estonia clocks fastest inflation in the Eurozone at 20.1 percent
Seems like it depends a lot on the local practices. Here in France the vast majority of mortgages are fixed rate and term. I'm probably a pessimist but it seems way to risky to take a variable rate, who knows what the future will hold in 15, 20, or even 30 years ?
ajnin··on Gitea – a painless self-hosted Git service
Gitlab does, as well as gitolite (which is a very lightweight, repository-only solution without a GUI or any of the fancy features like merge requests but it's perfect for my personal needs. Repo creation on push it the main feature that made me choose it. It is administered through git as well which I think is nice).
ajnin··on It costs $110k to fully gear up in Diablo Immortal
I hope more country follow suit of Belgium and The Netherlands and classify loot boxes with a random drop element as gambling, and as such make it heavily regulated and banned to kids. This kind of practices are evidently predatorial and manipulative and should be greatly discouraged.
ajnin··on Math on GitHub: The Good, the Bad and the Ugly
Yes, and now they've reached a dead since they have no way to render mermaid source code except as plain text or by introducing a new name like mermaid-src. It's minor but it's unsatisfying conceptually. I'd rather have them introduce a new "run delimited text into external program and replace by output" tag.
ajnin··on Math on GitHub: The Good, the Bad and the Ugly
A code block is used to display text literally, except adding syntax coloring. You would use it to display TeX source notation for example. A math block transforms TeX into something else, it's entirely different. I think it's correct that they did not use the code block syntax for this.
ajnin··on Almost all searches on my independent search engine are now from SEO spam bots
It's a music box that produces sound electronically, as opposed to traditional mechanical ones. I don't think it is that foreign of a concept. It might be present, or not, in the search results, it depends entirely on the niche and I could not now which it was by just reading the blog post. Anyway that was not really the point of my test.
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