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I wonder when Firefox is going to add a configuration menu for keybinds.

In applied CS, it's common to talk about pure and impure functions instead of Turing machines.

Pure functions are, broadly speaking, equivalent to Turing machines. A pure function may only depend on its inputs (like a Turing machine) and has no outputs besides the return value (like the end state of a Turing machine's tape).

Impure functions cover algorithms that aren't Turing machines. For example, you might have a random number generator rand: 1 → N that outputs different natural numbers on every invocation rand() and is hence impure. Output functions are also impure, e.g., a function write: N → 1 that writes a number into a file can't be a Turing machine, because Turing machines have no concept of files.

Computer programs that consist entirely of pure functions aren't very useful, because they can't interact with the user or reality. The typical approach to solving this is to put the core program logic inside pure functions that interact with impure parts through a limited interface. That way, you can apply CS concepts to the important parts of the program and neatly separate out the impure parts.

Edit: Changed ∅ to 1 (singleton set) in function definitions. A function can't return ∅ and a function taking ∅ can't be called.

all of these are different ways to say “firefox account”?

Basically yes. The idea is that each suffix represents something that's typically a separate word in English, and you can mix and match suffixes just as you'd mix words.

• my account -> tilini
• to an account -> tilille
• to my account -> tililleni
• to my account too -> tilillenikin

As a Finnish speaker, I just can't see generic localisation systems like Fluent working with agglutinative languages. For instance, consider the Polish example for Firefox Account from Fluent's front page:

-sync-brand-name = {$case ->
   *[nominative] Konto Firefox
    [genitive] Konta Firefox
    [accusative] Kontem Firefox
}

In Finnish, this would be called Firefox-tili. Tili means account and belongs to the Kotus type 5 words, which specifies how the word is inflected with various suffixes. Fluent doesn't support agglutination, so you'd have to specify every form of the word separately:

-sync-brand-name = {$case ->
    [nominative] Firefox-tili
    [partitive] Firefox-tiliä
    ... 10ish more inflections
    [nominative first person] Firefox-tilini
    [partitive first person] Firefox-tiliäni
    ... 10ish more inflections
    ... the above inflections but for 2nd and 3rd persons
    [nominative first person plural] Firefox-tilimme
    [partitive first person plural] Firefox-tiliämme
    ... 10ish more inflections
    ... the above inflections but for 2nd and 3rd persons plural
    [nominative first person questioning] Firefox-tilinikö
    [no idea what this is even called] Firefox-tilittömänäkin
    [no idea what this is even called 2] Firefox-tililleensäkään
    ... lots more
}

Ideally, you'd only specify that Firefox-tili is a type 5 word and the system generates all of that boilerplate.

Teams does actually have a sound cue when people join calls: high-pitched repeated beeps that most people can't hear due to presbycusis, and the few who do hear it think they're going crazy.

Related reddit thread.

The author should look into Koka. As I see it, Koka is at the bleeding edge of effect handling, which is why the async Rust team has taken some nibbles of inspiration from it. Alas, Rust as a whole is far too cemented to overhaul everything for generic effect support, but at least it's been beneficial for async.