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From: Eli Zaretskii <eliz@gnu.org>
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Subject: Re: Emacs Modular Configuration: the preferable way.
Date: Tue, 22 Jun 2021 14:45:10 +0300
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In-Reply-To: <YNEAFKwNQJ2yxqgv@protected.localdomain> (message from Jean Louis
 on Tue, 22 Jun 2021 00:09:40 +0300)
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> Date: Tue, 22 Jun 2021 00:09:40 +0300
> From: Jean Louis <bugs@gnu.support>
> Cc: help-gnu-emacs@gnu.org
> 
> As an irrelevant side note, this one bothers me:
> 
> (file-exists-p "") ⇒ t
> 
> Is that supposed to be so?

Yes, there are good practical reasons for this behavior.

Repeat after me: "file names are not just strings"...