>>use the special functions for handling hygienic macros? And each flavor of Lisp has its own way of doing hygienic macros. There are two main flavors of Lisp:

>>use the special functions for handling hygienic macros? And each flavor of Lisp has its own way of doing hygienic macros. There are two main flavors of Lisp: Common Lisp and Scheme; Scheme already has hygienic macros as default; and writing hygienic macros is trivial (and easy) in Common Lisp. >you will likely introduce a bug unless You won't "introduce a bug" if what you need is specifically an unhygienic macro. They have their uses, so it's good to be able to write unhygienic macros as well.