Yes, and sometimes you want to loop over something that can't be expressed with existing syntax. That's the benefit of Lisp-style macros: http://www.paulgraham.

Yes, and sometimes you want to loop over something that can't be expressed with existing syntax. That's the benefit of Lisp-style macros: http://www.paulgraham.com/avg.html http://www.paulgraham.com/avg.html