[sanityinc]

> To be fair, learning a new language is a joke. It doesn't require a substantial investment of time.

I think that rather depends on the language and your past experience. Most programmers with experience in mainstream languages will indeed require a substantial investment of time to learn a radically different language like Haskell.

[valarauca1]

>radically different

But swift isn't radically different paradigm shift like switching to a purely functional language like Haskell from a life spent writting c++.

I think your confusing learning functional programming with learning a "functional programming language." The "functional" part takes longer then the "programming lanague" part.

[sanityinc]

I didn't say anything about Swift: rather, I was responding to the parent's overly general assertion.