Thanks for responding, man. That's my point though. There is no cons building block in this lisp. I don't think (1 2 . 3) can be represented in it so having the notation for it makes no sense.
The Klingon Dictionary is very good at explaining grammatical concepts. It made me interested in how language worked. After reading it I was able to understand a French grammar book and go from getting an E in my French GCSE mock exam to a B in the final a couple of months later. I went on to get a degree in French (which I never used but that's beside the point).
The chunking behaviour is transparent unless you have a side-effect in your sequence function, which isn't sensible anyway. The chunked behaviour performs significantly better for the majority of cases which is why it's on by default, I believe.
Rich (creator of Clojure) addressed concerns similar to yours in this reddit discussion:
I don't understand why qooxdoo http://qooxdoo.org/ doesn't get more attention. It's not as pretty as cappuccino, sure, but it seems a very nice set of tools.