Clojure 1.7 is now available
>Transducers are composable algorithmic transformations. They are independent from the context of their input and output sources and specify only the essence of the transformation in terms of an individual element. Because transducers are decoupled from input or output sources,<p>The biggest thing holding me back from learning Clojure is that I fear it will take me a decade to become remotely competent in it.