Re: Comments on comments on Chapter 1

[Danny Bobrow <Bobrow.pa@Xerox.COM>]

 Moon:
   1-17 I still think it's wrong for list to be more specific than
    symbol in the CPL of null.  Consider the print-object methods. 
    Also consider the introjection of symbol between list and sequence,
    a surprising CPL.

I understand the first point.  This comes to the point of whether one
wants to print NIL
 as ()
 or NIL
I don't understand the second point.  What do you mean by introjection
here?  Show the surprise please (not that I wasn't surprised --- I just
couldn't open the box). 
danny