It would be nice to have typing in the core language/interpreter, including runtime type errors, instead of this weird add-on approach. I constantly run into si

It would be nice to have typing in the core language/interpreter, including runtime type errors, instead of this weird add-on approach. I constantly run into situation where the code is fine and mypy complains or the code is broken and mypy says it's fine. It all just feels like one gigantic fragile workaround instead of a proper type system that you can depend on.