Comment by toastal

I'm never going to understand the 'mathmatical jargon' argument against Haskell (and similar). Yes, but this can be true in almost any language that allows abstractions. The math jargon is just a name for a concept and I'd prefer math and programming shared terminology where appropriate rather than coming up with an entirely separate vocabulary. Is Functor really works than Mappable? It's just a label for the abstraction and you'll have to learn the underlying concept regardless so you might as well share the same word.