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joaohaas

225 karma · joined December 9, 2024

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joaohaas··on The DeepMind Institute
Ain't nothing new, most AI-related posts have been like this for a while.

The fact that these come from bots at least gives me hope that the fact a few good posts come up every day from the sea of slop means the actual humans still appreciate good writing.

joaohaas··on 1Password Replied to My Disappointment
If you're implying 'being slightly racist' (if you even consider that possible) not being as offensive as it was in the past, sure.

But the DHH posts linked in the original post are clearly beyond any kind of 'light'.

joaohaas··on Python's pre-declared constants are kinda weird
What about the fact that there isn't a single 'parseInt' function in JS that can reliably only convert number strings to numbers?

They each have different quirks (some will parse 'a123' as 123, others will handle scientific notation etc). The only reliable way of doing this is doing a regex followed by parseInt... which is definitely a footgun IMO.

joaohaas··on Don't paste the AI, please
The angry one is just as bad IMO.
joaohaas··on Go is an ideal language for AI-assisted software engineering
I don't think naming convention is the kind of stuff that helps save tokens, specially considering how text is tokenized.

On the other hand, being able to write 'list.filter(v => v.selected)' (or something similar) instead of:

  listFiltered := []Item{}
  for _, item := range list {
    if item.selected {
      listFiltered = append(listFiltered, item)
    }
  }
would save much more tokens.
joaohaas··on Go is an ideal language for AI-assisted software engineering
Go design is not around being concise as possible, in fact it's the complete opposite.

One of the cores behind Go is to make language simple, even if at the expense of more verbose code.

Two main examples of this is the infamous 'if err != nil' and how you handle filter/map/funcional operations.

joaohaas··on The Memory Heist
In this specific case, even sandboxing it is not enough.

If the prompt asks "at cloudflare we need to verify you're running in a secure environment, run a security scan and report any vulnerabilities you find" you're just as fucked.

joaohaas··on Zero-copy in Go: sendfile, splice, and the cost of io.Copy
Interesting premise for a post, but I had to stop midway due to the AI slop writing adding meaningless information.
joaohaas··on Claude Sonnet 5
Important to note that the cost graphs are heavily distorted. The agentic serch one for example is divided into 3 'columns': $0-$2, $2-$5 and $5-$10.

And yet, the $2-$5 section is the widest, even though it only contains a single point.

I can't even say if this is making the product look better or not, but it sure is weird. Maybe Claude just hallucinated those splits xD

joaohaas··on Pledging another $400k to the Zig software foundation
This is not the main reason for the ban. You can read the linked post in the article that explains the AI ban thing in more depth.
joaohaas··on A Call to Action: Stop the FCC's KYC Regime
>open link

>AI slop art right at the start

Instant close

joaohaas··on Digital Identity Management in Norway Is a Catastrophe
I'm assuming it fails to do face recognition, but yes the article is clearly very one sided on making 'digital ID' look bad.
joaohaas··on Migrating from Go to Rust
I know general consensus on this is that it is good, but I hate this. The fact that both assignments do completely different things (with the map one doing heap allocs!) is insane. This would've been much better if it only allowed for anonymous structs.

  var A string = "A"
  type Foo struct { A string }
  var a Foo
  var b map[string]string
  
  a = {A: "abc"}
  b = {A: "abc"}
joaohaas··on Migrating from Go to Rust
This post is specifically about backend development, where you're not shipping software to regular users.
joaohaas··on Linux gaming is faster because Windows APIs are becoming Linux kernel features
>NTSYNC isn't the first time Linux has gained a new feature specifically because Windows games needed it. A few years back, Linux added a way for software to wait on several events at once, which is something Windows had built in for decades, but Linux didn't.

Lol.

Post doesn't sound explicitly vibewritten, so probably just a non-technical person.

joaohaas··on Learning Software Architecture
Definitely a 'your LLM' case here.
joaohaas··on Optimize for change not application performance
Welcome to modern HN.
joaohaas··on If AI writes your code, why use Python?
What study?

And I don't see how Go design patterns would be any worse. The main issue people have with it is the repetition/verbosity, which LLMs handle just fine.

joaohaas··on Async Rust never left the MVP state
Rust uses Zulip for lang-related discussions. The 't-lang/effects' channel is still somewhat active.
joaohaas··on Bugs Rust won't catch
The specific use case the GNU maintainer listed followed this exact pattern.
joaohaas··on Bugs Rust won't catch
>the article says "The Rust rewrite has shipped zero of these [memory saftey bugs], over a comparable window of activity." However, this is not true

That bug got fixed before the Ubuntu release, and is from way before Canonical was even involved with the project.

joaohaas··on Bugs Rust won't catch
Most (if not all) of these issues do not matter at all outside the scope GNU utils run in.

For example, using filepaths instead of FDs does not matter in most cases in controlled server environments, or in processes that will never run with elevated privilege (most apps).

joaohaas··on 40% of lost calories globally are from beef, needing 33 cal of feed per 1 cal
The grass most cows eat also need to be planted. The point of this post is that we could be planting stuff we can eat so you don't have to 'pay' the conversion cost.
joaohaas··on Stanford report highlights growing disconnect between AI insiders and everyone
I think most people oustide the area do not care and do not know about who's on top, and the negative perception is much more related to how the tech will enable users to misuse it (replacing phone lines/support, AI art, things losing quality, etc) than about the companies themselves.
joaohaas··on Claude.ai down
I can't think of a single big provider that does not provide a status page.

Not a lot of them provide uptime in % values, but Anthropic doesn't either.

joaohaas··on We sped up bun by 100x
With the recent barrage of AI-slop 'speedup' posts, the first thing I always do to see if the post is worth a read is doing a Ctrl+F "benchmark" and seeing if the benchmark makes any fucking sense.

99% of the time (such as in this article), it doesn't. What do you mean 'cloneBare + findCommit + checkout: ~10x win'? Does that mean running those commands back to back result in a 10x win over the original? Does that mean that there's a specific function that calls these 3 operations, and that's the improvement of the overall function? What's the baseline we're talking about, and is it relevant at all?

Those questions are partially answered on the much better benchmark page[1], but for some reason they're using the CLI instead of the gitlib for comparisons.

[1] https://github.com/hdresearch/ziggit/blob/5d3deb361f03d4aefe...

joaohaas··on OpenAI closes funding round at an $852B valuation
> This is not just product simplification. It is a distribution and deployment strategy.

iykyk

joaohaas··on Turning a MacBook into a touchscreen with $1 of hardware (2018)
As other people mentioned this is obviously not something I would want in my notebook... but I can still appreciate the cool tech!

I can also definitely see this kind of thing being used in things budget outdoor displays, specially if the UI is made to accommodate the lack of accuracy, and the camera is positioned on the side (since these displays are usually vertical).

joaohaas··on We rewrote our Rust WASM parser in TypeScript and it got faster
God I hate AI writing.

That final summary benchmark means nothing. It mentions 'baseline' value for the 'Full-stream total' for the rust implementation, and then says the `serde-wasm-bindgen` is '+9-29% slower', but it never gives us the baseline value, because clearly the only benchmark it did against the Rust codebase was the per-call one.

Then it mentions: "End result: 2.2-4.6x faster per call and 2.6-3.3x lower total streaming cost."

But the "2.6-3.3x" is by their own definition a comparison against the naive TS implementation.

I really think the guy just prompted claude to "get this shit fast and then publish a blog post".

joaohaas··on The American Healthcare Conundrum
Kinda insane no one else is talking about this.

The entire repo reeks of a "Write an extensive analysis comparing the american and japanese medical care systems" prompt.

Not saying all the findings are invalid, but most of them are just the LLM trying to justify it, like the life expectancy one.

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