If anything all those attempts prove that for many scenarios, it is better having automated resource management + (affine, linear, dependent, effects) than the pure affine types approach taken by Rust.
replyHence all the Chapel, Swift, D, Linear Haskel, Ox, Idris2, Scala Capture Checking, Koka, and probably many others, efforts going on.
This is also noticeable among rustaceans, otherwise ergonomics for all the .clone() and related machinery, wouldn't be part of the 2026 roadmap.
If you want automated resource management, automate it. I'm really not convinced that Koka-style effects-for-everything are a win relative to just passing objects that own resources through parameters so they have actual values and explicit lifetimes.
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