Path: utzoo!attcan!uunet!husc6!bloom-beacon!AI.AI.MIT.EDU!Alan
From: Alan@AI.AI.MIT.EDU (Alan Bawden)
Newsgroups: comp.lang.scheme
Subject: self reproducing code
Message-ID: <19881007200040.6.ALAN@QUESTION-AUTHORITY.AI.MIT.EDU>
Date: 7 Oct 88 20:00:00 GMT
References: <8810071930.AA25143@car.utah.edu>
Sender: daemon@bloom-beacon.MIT.EDU
Organization: The Internet
Lines: 16


    Date: Fri, 7 Oct 88 13:30:30 MDT
    From: carr%car@cs.utah.edu (Harold Carr)
    A couple of years ago I found an example of self reproducing code....
    in Common Lisp, ...

My favorite example:

  (let ((let '`(let ((let ',let))
		 ,let)))
    `(let ((let ',let))
       ,let))

I believe that Mike McMahon is the author of this variant.  It is
unfortunate that this isn't standard Scheme because of the use of 
LET as an identifier...