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From: Eli Zaretskii <eliz@gnu.org>
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Subject: Re: Lisp files that load cl-lib in problematical ways
Date: Tue, 24 Oct 2023 05:31:20 +0300
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To: Stefan Kangas <stefankangas@gmail.com>
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 (message from Stefan Kangas on Mon, 23 Oct 2023 15:11:06 -0700)
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> From: Stefan Kangas <stefankangas@gmail.com>
> Date: Mon, 23 Oct 2023 15:11:06 -0700
> Cc: rms@gnu.org, emacs-devel@gnu.org
> 
> Eli Zaretskii <eliz@gnu.org> writes:
> 
> > Preloading unnecessary stuff is a slippery slope that once we start
> > there's no way of knowing where we end.  So let's not.
> 
> AFAIK, the main drawback is increased memory consumption.  The main
> benefit is that Emacs starts faster.
> 
> Are there any other important considerations?

Introduction of symbols that are not needed.  Also, some packages
modify the run-time environment when they load.