Alice: I don't need functional programming, I am very productive in my imperative / OOP language. Bob: What about feature x? Alice: Oh yeah, well we can add t

Alice: I don't need functional programming, I am very productive in my imperative / OOP language. Bob: What about feature x? Alice: Oh yeah, well we can add that! It has proven useful. Bob: Agreed! But now do you see the need feature Y? Alice: Hmm good point. Feature X would be better with Y. Let's add that too. (Repeat n times) Alice: Isn't my language pretty nice now? Bob: I have to agree, it's very productive Alice: See I told you, we don't need an FP language after all! Bob: ...