>The point is that code is data, enough said. You manipulate your functions the same way you manipulate lists, because they are the same thing. I'd just like t

>The point is that code is data, enough said. You manipulate your functions the same way you manipulate lists, because they are the same thing. I'd just like to interject for a moment. To add on to what you have said: More precisely, Lisp programs are just lists; and in Lisp lists are first-class data structures (that is, there is a ton of functions for working with list). Thus, in Lisp, Lisp programs are first-class data structures as well.