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

[Eli Zaretskii]

> From: Ihor Radchenko <yantar92@posteo.net>
> Cc: luangruo@yahoo.com, acm@muc.de, incal@dataswamp.org, emacs-devel@gnu.org
> Date: Thu, 21 Sep 2023 10:35:14 +0000
> 
> Eli Zaretskii <eliz@gnu.org> writes:
> 
> > We have these situations already: arrange for some timer to display an
> > echo-area message after several seconds, then type M-x or something
> > else to enter the minibuffer, and watch how the message is displayed.
> > We solved this, more-or-less, in Emacs 29.
> 
> In other words, it is some kind of primitive async queue, right?

No, it's a display trick.