RE: sending function arguments to recursive function calls

[Drew Adams]

> Just recall that Emacs is on track to eventually replace dynamic scoping
> with lexical scoping everywhere, with exceptions for defvar'ed vars
> (controlled dynamic binding), and nobody is really arguing that Emacs
> will become too hard to customize as a result. Nobody reasonably
> well-informed, anyway.

Which is just to say that Emacs Lisp now aims to end up like Common Lisp (30 
years later): lexical scoping unless the variable is "special" (which for Emacs 
Lisp means defvar'd, so far).

IOW, nothing new here.  No rejection of dynamic scoping.  Reasonable 
cohabitation of lexical and dynamic scoping.  That's still the aim, AFAIU, and 
a good one.