[plt-scheme] Off topic: Why does Common Lisp have two namespaces (lisp2)?

[Grant Rettke]

Hi folks,

Because I don't know any CL people, and I know there is expertise
here, could you please explain why Common Lisp has two namespaces
(lisp2)?

The ability to have two bindings to the name 'list' (one for a
variable and one for a function) surely can not be the only reason for
two namespaces?!

Best wishes,

Grant