I'd be curious to know why that is, given that once you have a few languages working, adding more on, intuitively (I have no experience in this) wouldn't be too difficult, given how many features the languages share?
Sort of. I can't comment on Kotlin, but Swift is a different beast though. Swift's generics are very different from say c#, java or even c++ templates, especially when you mix them with protocol associated types, which are also sort of, but not exactly generics.
In Elements we spent a lot of time on getting it right, and I think we have most edge cases covered for user code. The way generics are used in the Swift runtime library seems impossible to map perfectly on top of the concept of generics as C# has them though.
