This isn't describing "post-functional", it's just plain old "multiparadigm". Multiparadigm languages generally have a "base" language type that is at least slightly preferred or possibly what everything else compiles down to, with the tradeoff that anything you can't get without being "pure" in some paradigm won't be available to you. In practice this is often a good choice.<p>Lisp, Python, C++, Perl, it's a pretty well-populated space and nothing in that article leads me to believe that there's any particular innovation in the paradigm arena there. That is not to say the language itself is good or bad, just that this article is based on a really weird premise.