[__jem]

I don't want this to sound hostile because I have a similar love/hate relationship to Clojure, I truly don't understand what you're arguing. Or, it seems like your issue is with lack of static types rather than an issue with the implementation? I've written a lot of Clojure and have an okay to pretty good understanding of the implementation, but it's just hardly ever relevant to the code I write, so I still don't totally understand what you're getting at exactly. Like, what's the actual problem here? Just that there's more Java "intrinsics" than pure Clojure code? I guess I do agree that Clojure is really just Java, and it would do better for people to think about it just as (really nice) syntax sugar over Java, but I guess I don't see that as a problem, but rather the absolute biggest strength of Clojrue.

[lenkite]

I think he is arguing for more protocols than simply sequence. That is a sequence can be attributed fine-granular capabilities represented by protocols and that allows generic functions to be tailored towards those capabilities for improved performance.