A primary source is a beautiful thing.

*

In my not so humble opinion, the finest uses of the Loop facility are those without `do' clauses.
Once I realized those are best viewed as if expressed in declarative style, I was no longer bothered by the "lack of parentheses".

Note that three years later Common Lisp specified `loop' while reserving forms with atoms in them, so it did specify enough for a REPL "in four".
(In REverse PoLish, of course;
WHOIS says that re.pl was created on 2000-03-14.)

#Alchemy
#CommonLisp
#DeclarativeProgramming
#DeclarativeProgrammingStyle
#Lisp
#Loop
#LoopFacility

@kentpitman @screwlisp