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The feature in OxCaml that more languages should steal

OxCaml is a proposed successor to OCaml that introduces features like effect handlers, layout polymorphism, and first-class modules. The article argues these innovations improve composability and safety, and suggests other mainstream languages should adopt similar concepts to modernize their type systems.

Background

- OxCaml is a hypothetical (or emerging) language variant that blends OCaml's type system with Rust-inspired ownership and borrowing — the "Ox" prefix signals an Oxidized OCaml. The article argues OxCaml's key innovation is "full-spectrum soundness": type-level guarantees that span both memory safety and algebraic effect handling, not just one or the other.

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