> All flat, just parens. So not flat then. Prefix is not postfix. Forth, and most concatenative languages, are much closer to actually bein, flat. Lisp is tri

> All flat, just parens. So not flat then. Prefix is not postfix. Forth, and most concatenative languages, are much closer to actually bein, flat. Lisp is trivial to flatten, but that's not the same thing.