[axelrosen]

Yes, you could call both of them subsets. But one is so small that for most purposes is incompatible for anything but the simplest uses. While the other lets you run an almost identical codebase on two platforms. There are plenty of people who only ever write ClojureScript and couldn't care less about the JVM Clojure, because it really is that close.

And yes, as other mentioned js-cl is trying to do something similar, and I hope it works out!

Sorry bad wording on my part, was just reiterating the point that Parenscript maps closely to regular looking js, while cljs abuses js quite heavily.