Re:Anarki – Community-managed fork of the Arc dialect of Lisp
by kazinator on Sunday July 15, 2018 @09:35PM
(#17538149)
POSIX shell is dual-namespace, OTOH.
A variable foo, referenced as $foo, has nothing do with a function foo called as "foo args ...".
Imagine how stupid it would be if assigning a variable called ls prevented the ls command from working.
The advantage of a Lisp-2 is that it makes macro writing easier; you can include calls to known functions in the expansion without having to deal with the possibility that those names have been shadowed.