This doesnt seems to be meaningfully different from Rust.
> does not require tracing garbage collection
Just call it garbage collection.
(Applies in two ways: if you think that garbage collection subsumes reference counting then this language doesn’t require garbage collection in the sense that it also doesn’t require reference counting; if you think that garbage collection does not subsume reference counting then there’s no point in saying three words when you can say two.)
It's great to have it all spec'd out. However, I think specs like this suffer the same fate as war plans: they get modified quickly as soon as implementation begins. Nonetheless, it's good to have a clear idea of where you're headed. I just wouldn't call it "Final."
> does not require tracing garbage collection
Just call it garbage collection.
(Applies in two ways: if you think that garbage collection subsumes reference counting then this language doesn’t require garbage collection in the sense that it also doesn’t require reference counting; if you think that garbage collection does not subsume reference counting then there’s no point in saying three words when you can say two.)
[0] https://c3-lang.org
some just delegate more or less to the implementation
i read trying to assess if it's more or less expressible than rust's current nll or the future polonius and honestly there's nothing there