I feel no desire to use dynamic typing again, as nice as Clojure might otherwise be. While Kotlin is not strictly immutable, it is much better in this regard th

I feel no desire to use dynamic typing again, as nice as Clojure might otherwise be. While Kotlin is not strictly immutable, it is much better in this regard than Java. Collections are immutable by default in Kotlin (or more precisely you get an immutable view defined by the respective interface) and that is quite useful in practice.