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itishappy

5,020 karma · joined September 23, 2022

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itishappy··on That Methyl Methacrylate Tank
https://media.springernature.com/lw685/springer-static/image...

So... maybe?

itishappy··on That Methyl Methacrylate Tank
Or He felt we needed a small reminder of what we're capable of if not careful!
itishappy··on DeepSeek to Make Permanent 75% Discount on Flagship AI Model
> Roughly the constellation of pro-civil liberties, pro-market, anti-authoritarian, pro-property rights, pro-empiricism, pro-pragmatism, pro-technology viewpoints.

Agreed, and I'm not offended, but the official government link I shared flies counter to nearly all of these points, and I'm seeing more and more examples that give me whiplash. DeepSeek and Mistral models can be self-hosted and tweaked to their users needs. Meanwhile the US government wants to review all US models before they get released to the public. China already does this, but I kinda hoped we were different. I have a feeling that the US is less exceptional that we like to think. Narcissism of small differences.

itishappy··on DeepSeek to Make Permanent 75% Discount on Flagship AI Model
Which particular world views and leanings? Mine are likely quite different than yours. How does this site feel about "Woke AI" for instance? Remember, no neutrality please.

https://www.whitehouse.gov/presidential-actions/2025/07/prev...

itishappy··on Toxic chemical leak at a manufacturing facility in Orange County
Than what? Genuinely curious. I thought that the main exothermic thing monomers did was polymerization or combustion, and we're really hoping to prevent the latter.
itishappy··on Toxic chemical leak at a manufacturing facility in Orange County
Turning into plastic is an exothermic reaction. That's what's heating the tank.
itishappy··on Toxic chemical leak at a manufacturing facility in Orange County
Snow machines are just big spray nozzles. They don't chill the water the way you might be thinking. There's some adiabatic cooling from the expansion of compressed air, but that's about it.

Refrigerated liquid transport absolutely exists. Milk trucks is an example off the top of my head. Liquified natural gas is another.

itishappy··on Toxic chemical leak at a manufacturing facility in Orange County
It was leaking a few days ago. That leak was stopped. The reaction was not. It looks likely to leak again.
itishappy··on .NET (OK, C#) finally gets union types
A function that returns `Result<T,E>` is not a `T` and cannot be implicitly converted to one. If you want to use that `T`, the only way is writing code that drops or handles the `E`. If you don't, your program does not compile.

Compare this to exceptions, where the type is just `T` and can be used without further ceremony. You can discard the error by forgetting a handler. Now you have a program that occasionally crashes.

Follow-up: Are there async exceptions? A `Result` is just data that can be awaited. How would that work with exceptions?

itishappy··on .NET (OK, C#) finally gets union types
The Result pattern can be a lot more ergonomic than exceptions.

Microsoft C# guidelines recommend try-parse (which is just the Result pattern, albeit somewhat cludgy with no unions) over exceptions.

https://learn.microsoft.com/en-us/dotnet/standard/design-gui...

itishappy··on Making deep learning go brrrr from first principles (2022)
Which, lets be honest, is probably still being orchestrated by Python somewhere.

Python is 9.75 million times faster than Python.

itishappy··on SpaceX launches Starship v3 rocket
It's a joke. An excuse to share one of my favorite rockets. A rocket that happens to uniquely support your point.
itishappy··on Wi-Wi is wireless time sync at 1 nanosecond
A quartz oscillator drifts by roughly a second per day.

(Edit: Bad math left my underestimating by a few order of magnitude. Whoops.)

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

itishappy··on SpaceX launches Starship v3 rocket
Eh, they've left some performance on the table:

> Sprint accelerated at 100 g, reaching a speed of Mach 10 (12,000 km/h; 7,600 mph) in 5 seconds. Such a high velocity at relatively low altitudes created skin temperatures up to 6,200 °F (3,400 °C), requiring an ablative shield to dissipate the heat. The high temperature caused a plasma to form around the missile, requiring extremely powerful radio signals to reach it for guidance. The missile glowed bright white as it flew.

https://en.wikipedia.org/wiki/Sprint_(missile)

Maybe v4.

itishappy··on Project Glasswing: An Initial Update
Plenty of examples abound:

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

> Today, the events are often used as an example of a perverse incentive, commonly referred to as the cobra effect. The modern discoverer of this event, American historian Michael G. Vann argues that the cobra example from the British Raj cannot be proven, but that the rats in the Vietnam case can be proven, so the term should be changed to the Rat Effect.

itishappy··on Why Japanese companies do so many different things
> In reality, this system is largely sustained by the ruthless squeezing of subcontractors (for the record, I am Korean, but I actually like Japan), which is a massive social issue there. It’s very difficult for me to understand how anyone could view this structural dynamic as collaborative or horizontal.

This is the picture painted for me by the article. Vertical integration eliminates subcontractors. Horizontal integration squeezes them.

> If the author had concluded that their success in these niches stems from being an extremely vertical society where defying your superiors is simply not an option, I would have fully agreed. That aligns exactly with what I have experienced firsthand.

Same story here. When switching jobs is made difficult, the incentive is not to make waves.

> Does your definition of a 'horizotal culture' actually mean forcing people to work overtime just to hit deadlines?

Yes, provided your boss is working with you.

itishappy··on GenCAD
Nothing stops you from storing a history of mesh operations. This is exactly what modifiers (including geometry nodes) do in Blender today.
itishappy··on Futhark by example (2020)
Here they are in Futhark:

    val concat [n] [m] 't : (xs: [n]t) -> (ys: [m]t) -> *[n + m]t
    val matmul [n] [m] [l] 't : (xs: [n][m]t) -> (ys: [m][l]t) -> *[n][l]t
    val head [n] 't : (x: [n]t) -> t
And here's the pathological case (length cannot be determined at compile time):

    val filter [n] 'a : (p: a -> bool) -> (as: [n]a) -> *[]a
Other pathological cases include conditionals and loops.
itishappy··on A few words on DS4
Just the first one then...

Apologies. Where did I form my opinions?

itishappy··on Rewrite Bun in Rust has been merged
My read is it's less the rewrite and more the messaging around the rewrite. Nine days between "you're over-reacting" and merge is surprising, to say the least. Sure will be interesting to see that blog post!
itishappy··on A few words on DS4
DeepSeek has always been open-weight, and the DeepSeek HuggingFace page does not contain any comparisons. Where did you form these opinions?
itishappy··on An Introduction to Meshtastic
> But how are enough people going to get the hardware in that ad-hoc scenario?

They already have it because they ready HN! Only somewhat fascitious... A few motivated individuals can provide connectivity to thousands. There's probably a few such folks in your city already!

> Something that combined that + a dedicated hardware mesh transmitter (for longer range when needed) and allowed adhocactual network use between devices would be pretty damn cool.

This is exactly how these systems tend to work in practice. Just connect your phone via Bluetooth then use the Meshtastic app. The app can function on it's own to send messages to other phones without cell service, you just won't get the range.

itishappy··on I want to live like Costco people
weevils
itishappy··on I want to live like Costco people
I interpret as the latter:

> As a rule of thumb, one koku was considered a sufficient quantity of rice to feed one person for one year.

I assume "sufficient rice" means it needs to be supplemented, and this is supported by the footnote as well:

> Apparently 1.8 koku (1 koku and 8 to) was actually required for nourishment by a man each year, according to the conventional wisdom documented in a "home code" (kakun [ja]) of a certain merchant family in the Edo period.

itishappy··on How Semiconductors Were Made in America

    Hurdle 1: Shoddy Logic       <- Freedom of Speech
    Hurdle 2: Tyranny of Numbers <- Irreverence
    Hurdle 3: Miniaturization    <- Pragmatic not Dogmatic
    Hurdle 4: Repeatability      <- Meritocracy
    Hurdle 5: Scale              <- Outsiders Welcome
Connections suggested without supporting info. I don't buy them. Maybe there's more info in the video, but the terrible AI intro (one of the worst I've seen) did not encourage confidence.

Watched some of the video. The connection between "freedom of speech" and "shoddy logic" is that Shockley invented the transistor despite being a raging racist. This was the best supported argument of the bunch.

It's an interesting point about that time in history, but I still don't buy the argument. Does it hold up when looking at which countries lead the world in semiconductor manufacturing today?

itishappy··on Is my blue your blue? (2024)

    Blue his house
    With a blue little window
    And a blue Corvette
    And everything is blue for him
    And himself and everybody around
    'Cause he ain't got nobody to listen (to listen)
https://www.youtube.com/watch?v=BinWA0EenDY
itishappy··on NYC to open municipal grocery store in 2027
Simple fix really, HEB should just open up stores up north.
itishappy··on Ransomware Is Growing Three Times Faster Than the Spending Meant to Stop It
Sounds impossible to enforce.

The penalty for not paying is often catastrophic. The penalty for paying will have to be similarly impactful.

itishappy··on Project Glasswing: Securing critical software for the AI era
Honest question: how do state-sponsored attacks from China, Iran, North Korea, and Russia affect civilian life?
itishappy··on JSON Canvas Spec (2024)
Fair point, SVGs are more portable. They're also more capable (and complicated). JSON Canvas is a more specific tool.

Both of the following examples show the same thing, but the SVG representation doesn't convey the structure:

JSON Canvas:

  {
    "nodes": [
      {"id": "a", "type": "text", "text": "Alice",   "x": 20,  "y": 50,  "width": 40, "height": 10},
      {"id": "b", "type": "text", "text": "Bob",     "x": 170, "y": 50,  "width": 40, "height": 10},
      {"id": "c", "type": "text", "text": "Charlie", "x": 320, "y": 50,  "width": 40, "height": 10},
      {"id": "d", "type": "text", "text": "Dave",    "x": 170, "y": 150, "width": 40, "height": 10}
    ],
    "edges": [
      {"id": "ad", "fromNode": "a", "toNode": "d"},
      {"id": "bd", "fromNode": "b", "toNode": "d"},
      {"id": "cd", "fromNode": "c", "toNode": "d"}
    ]
  }
SVG:

  <svg width="400" height="200">
    <text x="20"  y="50" >Alice</text>
    <text x="170" y="50" >Bob</text>
    <text x="320" y="50" >Charlie</text>
    <text x="170" y="150">Dave</text>
    <line x1="40"  y1="60" x2="190" y2="130" stroke="black"/>
    <line x1="190" y1="60" x2="190" y2="130" stroke="black"/>
    <line x1="340" y1="60" x2="190" y2="130" stroke="black"/>
  </svg>
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