On Tue, Sep 16, 2014 at 5:50 PM, Stefan Monnier <monnier@iro.umontreal.ca>
wrote:

> The main problems I see with that:
> - Elisp is slow and as CPUs aren't getting faster, its slowness makes
> itself
>   noticed more often.
> - Lack of some features, most notably FFI and concurrency.
> - Lack of manpower.
>

Perhaps also the lack of possibility to enhance Emacs with code written in
other languages? I think for example that Javascript will be something most
future programmers will know. Could Guile make it easier to enhance Emacs
with Javascript (as an alternative to Elisp)?