[mrkgnao]

> I see no reason that a good proposal and example implementation wouldn't be accepted for addition to go.

I'm sorry to bring the age-old "but generics" thing up, but how do you even implement (what Haskell-alikes call) Functor without parametric polymorphism?

The only ways I see are

a) Elm-style List.map/Array.map/Maybe.map

b) Rust-style Functor/Monad operations on specific types like Result

Which of these do you think Go would be more receptive to?