Targeting multiple platforms is orthogonal to the core language design goal, which has always been to be more like C# on the JVM, with 100% Java interop and no

Targeting multiple platforms is orthogonal to the core language design goal, which has always been to be more like C# on the JVM, with 100% Java interop and no need for a big standard library. I give you nullability, however extension methods without proper typeclasses is just syntactic sugar, and coroutines will be superseded by Loom. Java hasn't only been catching up, it now supports pattern matching which Kotlin still lacks.