Absolutely - the advice is highly applicable in most modern widely used languages. My point was merely that the examples being presented in Haskell - and in th

Absolutely - the advice is highly applicable in most modern widely used languages. My point was merely that the examples being presented in Haskell - and in the context of talking about lists in a very functional, lispy cons-ish kind of way, makes it less accessible for programmers who are using more object-oriented type systems.