> Lack of exceptions Is that really a problem? I think proper sum types to allow Result types that can encode many success/error states are so much nicer than

> Lack of exceptions Is that really a problem? I think proper sum types to allow Result types that can encode many success/error states are so much nicer than an exception hierarchy. Rust and Kotlin did not go with exceptions, and for good reasons. > C, C++, Java, Lisp, Python, Ruby... you name it I've done it. Let me name a few: Rust, Kotlin, OCaml/Reason, Haskell, Elm. These languages carefully selected a set of features, the all have: no implicit nulls and sum types. And in your list non of them have those features. I really wonder what you think of these features when you've worked with them.