A Retrospective on Paradigms of AI Programming If you can't hear me, it's because I'm in parentheses. - Steven Wright October 1997: It has been six years since I finished Paradigms of AI Programming (or PAIP), and now seems like a good time to look back at how Lisp and AI programming have changed. Update: April 2002: It has now been over ten years, so I've updated this page. Is Lisp Still Unique? Or at Least Different? In 1991 Lisp offered a combination of features that could not be found in a...