In the Haskell example, a/b/c/d can be lists of simple data structures. In your c# style example, getData/getMoreData must either be methods on the a/b/c/d obj

In the Haskell example, a/b/c/d can be lists of simple data structures. In your c# style example, getData/getMoreData must either be methods on the a/b/c/d objects, or extension methods on lists of simple data structures. Both are pretty bad in comparison, IMO.