From mboxrd@z Thu Jan  1 00:00:00 1970
X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on inbox.vuxu.org
X-Spam-Level: 
X-Spam-Status: No, score=-1.0 required=5.0 tests=MAILING_LIST_MULTI,
	RCVD_IN_DNSWL_NONE autolearn=ham autolearn_force=no version=3.4.4
Received: (qmail 8117 invoked from network); 6 Nov 2020 16:02:38 -0000
Received: from minnie.tuhs.org (45.79.103.53)
  by inbox.vuxu.org with ESMTPUTF8; 6 Nov 2020 16:02:38 -0000
Received: by minnie.tuhs.org (Postfix, from userid 112)
	id 43B2B9D54E; Sat,  7 Nov 2020 02:02:35 +1000 (AEST)
Received: from minnie.tuhs.org (localhost [127.0.0.1])
	by minnie.tuhs.org (Postfix) with ESMTP id CC13D9D4B3;
	Sat,  7 Nov 2020 02:02:07 +1000 (AEST)
Received: by minnie.tuhs.org (Postfix, from userid 112)
 id BA9F19D4B3; Sat,  7 Nov 2020 02:02:04 +1000 (AEST)
X-Greylist: delayed 898 seconds by postgrey-1.36 at minnie.tuhs.org;
 Sat, 07 Nov 2020 02:02:02 AEST
Received: from elf.torek.net (unknown [50.212.202.245])
 by minnie.tuhs.org (Postfix) with ESMTPS id 054489D4B2
 for <tuhs@minnie.tuhs.org>; Sat,  7 Nov 2020 02:02:01 +1000 (AEST)
Received: from elf.torek.net (localhost [127.0.0.1])
 by elf.torek.net (8.15.2/8.15.2) with ESMTPS id 0A6Fl25O034444
 (version=TLSv1.2 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO)
 for <tuhs@minnie.tuhs.org>; Fri, 6 Nov 2020 07:47:02 -0800 (PST)
 (envelope-from torek@elf.torek.net)
Received: (from torek@localhost)
 by elf.torek.net (8.15.2/8.15.2/Submit) id 0A6Fkv3D034443
 for tuhs@minnie.tuhs.org; Fri, 6 Nov 2020 07:46:57 -0800 (PST)
 (envelope-from torek)
Date: Fri, 6 Nov 2020 07:46:57 -0800 (PST)
From: Chris Torek <torek@elf.torek.net>
Message-Id: <202011061546.0A6Fkv3D034443@elf.torek.net>
To: tuhs@minnie.tuhs.org
In-Reply-To: <175409f6-af94-601e-3db3-a5af5d7f64d0@gmail.com>
X-Greylist: inspected by milter-greylist-4.6.2 (elf.torek.net [127.0.0.1]);
 Fri, 06 Nov 2020 07:47:02 -0800 (PST) for IP:'127.0.0.1'
 DOMAIN:'localhost' HELO:'elf.torek.net' FROM:'torek@elf.torek.net' RCPT:''
X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.6.2
 (elf.torek.net [127.0.0.1]); Fri, 06 Nov 2020 07:47:02 -0800 (PST)
Subject: Re: [TUHS] The Elements Of Style: UNIX As Literature
X-BeenThere: tuhs@minnie.tuhs.org
X-Mailman-Version: 2.1.26
Precedence: list
List-Id: The Unix Heritage Society mailing list <tuhs.minnie.tuhs.org>
List-Unsubscribe: <https://minnie.tuhs.org/cgi-bin/mailman/options/tuhs>,
 <mailto:tuhs-request@minnie.tuhs.org?subject=unsubscribe>
List-Archive: <http://minnie.tuhs.org/pipermail/tuhs/>
List-Post: <mailto:tuhs@minnie.tuhs.org>
List-Help: <mailto:tuhs-request@minnie.tuhs.org?subject=help>
List-Subscribe: <https://minnie.tuhs.org/cgi-bin/mailman/listinfo/tuhs>,
 <mailto:tuhs-request@minnie.tuhs.org?subject=subscribe>
Errors-To: tuhs-bounces@minnie.tuhs.org
Sender: "TUHS" <tuhs-bounces@minnie.tuhs.org>

>I use single spaces between sentences, but my ancestors 
>used 2... who knows why? :).

Typewriters.

In typesetting, especially when doing right-margin justification,
we have "stretchy spaces" between words.  The space after end-of-
sentence punctuation marks is supposed to be about 50% larger than
the width of the between-words spaces, and if the word spaces get
stretched, so should the end-of-sentence space.  Note that this is
all in the variable-pitch font world.

Since typewriters are fixed-pitch, the way to emulate the
1.5-space-wide gap is to expand it to 2.

Chris