I don't think there's a binary between "totally open, general-purpose language across all platforms" and "closed-source/proprietary". Even if Swift remains a de

I don't think there's a binary between "totally open, general-purpose language across all platforms" and "closed-source/proprietary". Even if Swift remains a decidedly Apple language, developers can still benefit from having access to source code and to an open discussion/planning forum. Unreal Engine takes a similar approach