Honestly, OCaml is hardly esoteric. It's not a major language, but it's not a specialty language either. I'd put it in the same category as Elm, Erlang, or even

Honestly, OCaml is hardly esoteric. It's not a major language, but it's not a specialty language either. I'd put it in the same category as Elm, Erlang, or even something like Julia. Scala takes a ton of inspiration from OCaml, to the point where you pretty much feel like you know one if you know the other (at least speaking for myself that's been true).