On Wed, Dec 29, 2021 at 11:28:41PM -0500, Richard Stallman wrote:
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> 
>   > > I think we should extend the functionality of closures by providing a
>   > > way to access the bound variables in them.  Then we won't need to make
>   > > Emacs Lisp more complicated with a new data type, because ordinary
>   > > closures will do this job too.
> 
>   > That's exactly what fcr.el does.
> 
> I have not seen fcr.el -- would you please send me a copy?
> 
> However, if it does exactly what I described above, why do we need a
> name other than "closures"?  Why do we need a new type of object?

Possibly because it diverges somewhat from the canonical meaning of
"closure" -- it might confuse people.

Cheers
-- 
t