Re: Emacs design and architecture. How about copy-on-write?

[Eli Zaretskii]

> From: Ihor Radchenko <yantar92@posteo.net>
> Cc: luangruo@yahoo.com, emacs-devel@gnu.org
> Date: Thu, 21 Sep 2023 10:13:31 +0000
> 
> As I understand his previous explanations, global variable values are
> stored per-thread, if they were changed by that thread at some point.

So if a thread changes a global variables, other threads will never
notice?  That's not what Emacs Lisp programs expect.