What Features Should Rust Include? Not Inheritance.

Programming language design requires careful curation of features that work well together. Rust deliberately excludes inheritance because it provides better alternatives like enums for sum types, traits for dynamic polymorphism, and composition for code reuse. The author argues inheritance creates cognitive overhead, has unclear semantics, and violates Rust's principle of having one clear way to solve each problem. Rust's existing features already handle all inheritance use cases more safely and clearly.