Not as exotic as Rust, due to more being in the Algol line of succession than ML's.

But boy, on the Algol-tree, it's about as far away from Go as you can, erm, go. The blog poster's predecessor was about as heavy as you can get into generics without being called Stepanov.

D tends to have quite a lot of features and lets you pick your subset, which brings it closer to languages like C++ or Scala. Go, being basically Oberon filtered through New Jersey, is a lot more minimalistic. Old Java vs. new Java, basically.