> Whenever I look it just looks pointlessly complicated. I would say the exact same thing about the imperative style, and I have lived in both the Imperative/O

> Whenever I look it just looks pointlessly complicated. I would say the exact same thing about the imperative style, and I have lived in both the Imperative/OO world and the Declarative/FP world. > Given that 99% of software is not written in these languages citation/elaboration required, and not just because SQL and similar tools are declarative like another comment mentioned: a great majority of imperative languages have begun to include/adopt functional programming tools and ideas (map, reduce/fold, lambdas)... perhaps it's because they are extremely useful concepts.