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samuel

744 karma · joined May 8, 2008

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samuel··on The scientific “unit” we call the decibel
It was a true concern, I know people who never got used to it. But were 70+ at the time and dead by now, so it eventually gets fixed, yeah.
samuel··on Bloom Filters
Interesting, but not quite the same:

Xor and binary fuse filters require access to the full set of keys at construction time. In this sense, they are immutable. Alternatives have typically a fixed memory usage and a maximal capacity, but they also allow more flexibility such as progressive construction (adding keys one by one).

samuel··on Jagged AGI: o3, Gemini 2.5, and everything after
That's not an inherent property of the system. You can choose the most likely token(topk=1) and it will be deterministic (at least in theory, in some hardware setups it might be trickier)
samuel··on MCP Run Python
I spin up a docker container using the docker API. I haven't used gvisor because I don't expect the model to try kernel level exploits. If it were the case, we're already doomed.
samuel··on Gemini 2.5 Flash
I can, and I would say it's a likely scenario, say 30%. If they don't have a significant edge over their competitors in the capabilities of their models, what's left? A money losing web app, and some API services that I'm sure aren't very profitable either. They can't compete with Google, Grok, Meta, MS, Amazon... They just can't.

They can end being the Altavista of this era.

samuel··on How University Students Use Claude
I guess this students don't pass, do they? I don't think that's a particularly hard concern. It will take a bit more, but will learn the lesson (or drop out).

I'm more worried about those who will learn to solve the problems with the help of an LLM, but can't do anything without one. Those will go under the radar, unnoticed, and the problem is, how bad is it, actually? I would say that a lot, but then I realize I'm pretty useless driver without a GPS (once I get out of my hometown). That's the hard question, IMO.

samuel··on Qwen2.5-VL-32B: Smarter and Lighter
It's an interesting question! In my opinion, if you don't use tools it's very unlikely it can do any harm. I doubt the model files can be engineered to overflow llama.cpp or ollama, or cause any other damage, directly.

But if you use tools, for example for extending its knowledge through web searches, it could be used to exfiltrate information. It could do it by visiting some specially crafted url's to leak parts of your prompts (this includes the contents of documents added to them with RAG).

If given an interpreter, even if sandboxed, could try to do some kind of sabotage or "call home" with locally gathered information, obviously disguised as safe "regular" code.

It's unlikely that a current model that is runnable in "domestic" hardware could have those capabilities, but in the future these concerns will be more relevant.

samuel··on GitHub Copilot is now available for free
Fast on cpu it's just not realistic.

Open source, fast and good: openrouter with opensource models (Qwen, Llama,etc...) It's not local but these is no vendor lockin, you can switch to another provider or invest in a gpu.

samuel··on Mixtral of experts
They could charge for tuning/support, just like every other Open Source company.

Most business will want their models trained in their own, internal data, instead of risking uploading their Intellectual Property into SaaS solutions. These Open Source models could fill that gap.

samuel··on HC-tree is an experimental high-concurrency database back end for SQLite
Duckdb should be compatible with postgres to a high degree.

https://duckdb.org/why_duckdb.html

> SQL Parser: We use the PostgreSQL parser that was repackaged as a stand-alone library. The translation to our own parse tree is inspired by Peloton.

samuel··on Windows Subsystem For Linux a.k.a. WSL 1.0.0 released
It's definitely better than cygwin, but cygwin was ok already. I don't see it as a game changer.
samuel··on Ask HN: Name 3-5 books that had the most impact on your career and knowledge?
I hope you like it!
samuel··on Ask HN: Name 3-5 books that had the most impact on your career and knowledge?
1. Data Analysis with Open Source Tools

This learnt me how to analyze "small" datasets which have helped me incredibly in my career. Technology wise is very out of date, but the concepts are still valid.

I think it's hard to get more with less investmtent. Really underrated book.

2. Expert Oracle Database Architecture

If you have to develop on Oracle (something I undestand it's not very popular in HN), you have to read it. It's a great book that delves into the why's and not only into the how's.

3. Software Estimation: Demystifying the Black Art.

Only the "cone of uncertainty" concept would make it a must-read. It provided me a framework for doing estimations and at same time, to worry less about them. It has helped me to divert lots of uncomfortable conversations about "when" towards a much more productive "what-and-why-is-needed".

samuel··on Tell HN: Locked out of Gmail account even after right password, recovery email
As I said, I'm probably in the wrong, but my plan is:

- Try to reach Google's One support instead of the generic Google Gsupport. Since they are paying customers, may be there are humans involved at some point.

- If that fails, the next move is to take the legal path. There are several ways of doing so before going to court. I assume that once so trivial reaches any lawyer of the company it will be fixed immediatelly. If it doesn't, given that the company has valuable and confidential information that's not accessible anymore the case could be strong enough to reach a judge, even if the amount itself is very low (20eur/year). It's expensive and will take time, but it's the best I can devise.

samuel··on Tell HN: Locked out of Gmail account even after right password, recovery email
One of the reasons I pay for Google One storage is that in case something like that happens to me I will be able to do something legally, since I'm a customer and I'm not getting my service, right? (And my identity is tied to my credit card, so it can be verified easily).

I'm probably too naive but I can't think anything better. I'd gladly pay some money just to avoid this scenario.

samuel··on Denmark not offering second Covid booster shot to healthy adults under 50
Fair enough, but you are comparing a sure event (if you decide to get the vaccine) and a contingent one (getting covid). It's impossible to declare any of both as a clear winner. Furthermore the risk difference is negligible when compared to daily activities (like driving or making the dinner).

One of the problems here, and the source of a lot of trouble it's that sending nuanced messages it's very hard and goverments feared that being cautious could affect negatively to vaccination rates. So they took the simplistic path of presenting the vaccines as a silver bullet for everyone (and they were but in a very varying degree).

I can understand that decision but at the same time, it has thrown a lot of fair "skeptics" under the bus.

samuel··on Denmark not offering second Covid booster shot to healthy adults under 50
I'm playing the devil's advocate and I'm not very comfortable with it, but I think it' valuable to the discussion to do so.

You are oversimplying and again conflating both groups. You assume people made their mind first and then looked for experts' to support which it's not fair to a lot of them.

Let's focus on an specific case. A healthy 25 years old male living in on of those countries. If he's an skeptic and decides to make a data oriented decision, the truth is that his chance of dying or getting a severe infection was really slim and probably comparable to the odds of getting a myocarditis because of it.

Yet the media and the government, at least in my country, did not make any difference between his case and a 60 years old with hypertension. Everyone had to take their shot or be denied his right to go to a pub or restaurant.

samuel··on Denmark not offering second Covid booster shot to healthy adults under 50
There are several kinds of anti-vaxxers. It's easy to focus on the tinfoil hat kind but there are others that just kept an skeptic outlook and were equally by the ridiculized by media, when not directly accussed of being accomplices of homicide (I'm talking about Spain here, may be in other countries the situation was different).

True experts' doubts just reinforce their positions instead of weakening them, IMO.

For the record, I have got 3 shots (2 Pfizer + 1 Moderna), and I don't regret it. But I respect people who chose differently because the unknowns about the vaccines.

samuel··on Tim Cook's response to Android texting compatibility: 'buy your mom an iPhone'
This is a non-issue in a lot of EU countries where people use WhatsApp for everything.
samuel··on A Message from Signal's New President
You would be into a real civil war if a third of the population would definitely think a president was elected with fake votes.

Take it as you want.

Have a nice day.

samuel··on A Message from Signal's New President
The questions wording doesn't explicitly mentions voting fraud. People could be referring to the handling of hunters' laptop or something like that.
samuel··on A Message from Signal's New President
> was referring to Trump supporters as fascist (a concept I imagine you would disagree with, based on your statements so far)

Now we're making progress.

Yes, I guessed she was referring to Trump supporters. And that's exactly the problem I have with the article. It's hard to disagree with someone who argues for formulae to fight fascism, until you realize that term means something different for every person, specially if she's in the left.

How do you know she doesn't apply that label to every Trump supporter and not just the kind of one who stormed the Capitol?

And after reading that article. Are you sure she would be ok with the fact that trumpists were using Signal to communicate on Jan 6 and wouldn't try to undermine its usage among them? Sure, there are multiple interpretations of her words, but certainly it raises a doubt. And that and no other was my point.

> Not to mention the bulk of the Republican Party incorrectly believes that the 2020 election was stolen.

Come on. You don't sincerely believe that.

samuel··on A Message from Signal's New President
I'm consider myself well versed on american politics, and I'm not picking sides. Believe or not I read more about american politics every day than about politics of my own country.

Reading random guys in the internet it's not the only thing I do and I don't think I implied that. It was just a data point to support that the notion that it's not widely accepted that leftist bias is present in some tech platforms.

I have the impression you are trying to "defeat" without the need of presenting any argument just because I'm not american. If you want some kind of victory it's yours. If you have convincing arguments I will be delighted to hear them. Still waiting, though.

samuel··on A Message from Signal's New President
> She’s not “parroting republicans” by saying tech is largely operated by people who are elite and (ostensibly) liberal. As far as I know, this isn’t controversial amongst liberals - just a projection made up by Fox News anchors and talk radio hosts as they shout “hypocrisy!” while being funded by the likes of Rupert Murdoch.

I don't watch Fox News, just read comments on american dominated forums like this one and reddit (the regular subrredits like r/news or r/europe, not obscure ones). And I my impression is that the average left-leaning user does not openly acknowledge that there is a leftist bias on Twitter or Youtube. On the contrary.

> Didn’t you read the part about fascism? She’s talking about republicans lol, you realize that right?

I don't understand what you mean, I'm sorry, but I have read the whole thing.

samuel··on A Message from Signal's New President
I don't know if I have any chance of convincing you (or anyone) given the current political entrenchment, but I will try.

That it took this long for Big Tech companies to take fascists seriously enough to remove some of them from social media should serve as a wake-up call: Elites tend to realize the dangers of fascism only when violent flash points hit close to home. It is workers and historically marginalized people who are—and always have been—the anti-fascist front line. If progressives are to ensure that technical systems aren’t yoked to a far-right agenda, they’ll need to stop relying on legislative maneuvering or entreaties to corporations and, together with these frontline actors globally, vie for control over the infrastructure itself.

I read this as "I believe that Democrats have a grip on Big Tech" (that's the point of many trumpists, she seems to agree with them). But instead of presenting it as a bad thing, she thinks that it's not enough and the control over the infraestructure should be stronger.

samuel··on A Message from Signal's New President
_The Signal Foundation’s mission is to develop open source privacy technology that protects free expression and enables secure global communication._

vs

_The left must vie for control over the algorithms, data, and infrastructure that shape our lives._

I don't think these two staments match very well. Caesar's wife and all that....

Edit: BTW, I wish her well too. I don't think that she's going to hinder Signal's crypto just serve to the left's interests, but she hasn't a clean record.

samuel··on A Message from Signal's New President
That was my first instinct, to look what she had done/write before.

I have to admit, being anti-woke myself (not American), that this article caught my eye:

https://www.thenation.com/article/society/tech-labor-progres...

Not the kind of person I would expect to be in charge of Signal, TBH.

samuel··on Not Your Grandmother's Textbook Exercise
A) is the right *business* answer the 99% of the time, assuming you have a fast routine for sorting an array but not one for computing the median directly.

Mary shouldn't care about a) vs b) unless she has to wait too much to get the answer. If she has, then her need has to be weighted against other business needs, so the data gathered in c) becomes relevant. b) then becomes one of c's aftermaths.

d) is dishonest

So it is a) -> c)

I wouldn't go directly to c), a) is cheap enough.

samuel··on Day ahead electricity prices for EU
THIS.

The compensation adds 243.57eur/MWh to the final price for Spain.

https://www.omie.es/es/market-results/daily/average-final-pr...

samuel··on Dicom File Format Basics
Dicom files are usually in a structure that includes a viewer (there is a IHE profile which standardizes it). Barring radiologists physicians rarely know about file formats, and the portable media "just works" (mostly).
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