Comment by dustingetz

> This is a way to unify all these abstractions so that you can write a single map/filter/concat transform once, and use it in many different ways.

I don't understand why these things aren't all unified in the first place, it's just function composition we're talking about here right?

Edit: I mean it's clearly not just simple function composition, but I don't understand why not

    (def xform (comp (map inc) (filter even?))) ; xform is a transducer
    (defn xform [aseq] (->> aseq (map inc) (filter even?))) ; xform is a fn

Why do these have to be different things? Why is there a need for machinery to do what fn composition is supposed to do?