일관성 있는 설계에 대한 목적지로 보아야하는가
생산성을 향상시키는 방편으로 봐야하는가
이것때문에 느무느무 헷갈린다

http://stackoverflow.com/questions/5066355/advantages-of-clos-over-other-class-based-oo-systems

Depends on what you see as advantage.First CLOS is a class-based object system, compared to non-class-based prototype-oriented object systems. CLOS has classes with multiple inheritance. CLOS objects are instances of classes.CLOS does not make classes namespaces. CLOS also does not make methods reside inside classes and namespaces of those classes.This means that CLOS is not message-passing OO. One does not pass a message to some object, where the object then runs the corresponding method.