alt Hacker NewsYour example produces very distinguishable results. e.g. if Array.first finds a nil value it returns Optional<Type?>.some(.none), and if it doesn't find any value it returns Optional<Type?>.none
The two are not equal, and only the second one evaluates to true when compared to a naked nil.
What language is this? I'd expect a language with a ? -type would not use an Optional type at all.
In languages such as OCaml, Haskell and Rust this of course works as you say.