Re: Emacs Lisp and Guile

[Richard Stallman]

    All Elisp variables would be constructed specially, even if they
    didn't make use of any of the available features initially.  That
    would mean that variables declared in Scheme can not be later made
    buffer local since normal Scheme variabled would not be constructed in
    the special way.

This would be a big inconvenience in practice.  It would mean that
mentioning a variable in Scheme code once prevents you from using it
in other ways.  It needs to be possible to make a variable "special"
(in this sense) after having used it in other non-lexical ways.