"Haskell is one of those languages that mathematician-type/minded people love! It's sort of a language for geniuses, by geniuses. So, you should probably know about it if only to be able to say "well, is this kind of like Haskell", and if so, you know you have to hire some very smart people to program in it. Haskell is sort of a modern-day Lisp, in that respect."