I'm still very much a novice at FP, but seeing as far as I can through my keyhole view I think FP offers a different, and in some ways deeper, level of absracti

I'm still very much a novice at FP, but seeing as far as I can through my keyhole view I think FP offers a different, and in some ways deeper, level of absraction than OO, providing more re-use to the individual who becomes proficient, but less publishable reusable code. Here's what I mean by that. The author, in talking about the reusable functions he writes for the kind of tasks he performs is really creating a domain specific language (or fragments of a language) addressing his programming domain, whatever that is. The extra work that would be involved to make this reusable for other people is daunting, primarily because he can be fast and lose in defining his domain for his own personal use (in fact he may not even reflect on the fact he is defining a domain), but for his domain specific language to be useful to others he would have to be far more rigorous in domain definition, with all the attendant documentation, use case testing, etc. This level of effort is way beyond the level of effort require to define an OO framework, for instance. Therefore he produces something that provides him a deeper level of abstraction, but is not useful enough to others.