[Rochus]

The book unfortunately doesn't mention CLOS, nor does it give any hints about the differences. But the focus of the book is obviously on Lisp Object-Oriented Programming, not on Expert Systems. A comparison with CLOS is therefore apparent.

[mepian]

The only way to improve GenAI-slop comments is to delete them, please stop polluting HN.

EDIT: The comments I was referring to got sneakily edited. Another thing that is not nice to do.

[Rochus]

Providing an answer would have been more helpful.

EDIT: still no helpful contribution, just nagging.