This is just a light lisp-like syntactic layer, as the docs say "LispyScript is not a dialect of Lisp. There is no list processing in LispyScript ." It's just enough to allow nice macros, which adds quite a bit, IMO. There's no CONS, etc. It adds a couple nice things, like an "each" function that does the right thing, and (= foo bar) becomes foo === bar.