> Hm Hm. Lisp was developped to do AI research > it's still used for that AFAIK. It is, mainly in America - here in Europe Prolog is used for AI. Why? I don't know. LISP doesn't do much to qualify as an AI language IMO, where Prolog is really a good tool (for most linguistic related not too heavy algorithmic stuff). Adios... Axel.