Still a Lisp system may have thousands of Generic Functions with ten thousands of methods. One Lisp implementation I use has that many out of the box. Incl. var

Still a Lisp system may have thousands of Generic Functions with ten thousands of methods. One Lisp implementation I use has that many out of the box. Incl. various I/O related code: streams, networking, graphics, user interface, development environment, ... Even though low-level numeric code might not be written with them, large parts of applications often are written using them.