From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.devel Subject: Re: Org schemas we talked to be non-free, was: [ELPA] New package: repology.el Date: Mon, 25 Jan 2021 17:27:57 +0200 Message-ID: <83im7l2g02.fsf@gnu.org> References: <83zh0y2jtu.fsf@gnu.org> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="28836"; mail-complaints-to="usenet@ciao.gmane.io" Cc: bugs@gnu.support, ulm@gentoo.org, emacs-devel@gnu.org, ams@gnu.org, arthur.miller@live.com, dgutov@yandex.ru To: rms@gnu.org Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Mon Jan 25 16:30:14 2021 Return-path: Envelope-to: ged-emacs-devel@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1l43ok-0007OZ-35 for ged-emacs-devel@m.gmane-mx.org; Mon, 25 Jan 2021 16:30:14 +0100 Original-Received: from localhost ([::1]:55488 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1l43oj-0007Jh-0o for ged-emacs-devel@m.gmane-mx.org; Mon, 25 Jan 2021 10:30:13 -0500 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:54676) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1l43mf-0005lT-J0 for emacs-devel@gnu.org; Mon, 25 Jan 2021 10:28:05 -0500 Original-Received: from fencepost.gnu.org ([2001:470:142:3::e]:52783) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1l43me-00067q-K5; Mon, 25 Jan 2021 10:28:04 -0500 Original-Received: from 84.94.185.95.cable.012.net.il ([84.94.185.95]:2721 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1l43mR-0002jy-UN; Mon, 25 Jan 2021 10:27:52 -0500 In-Reply-To: (message from Richard Stallman on Mon, 25 Jan 2021 00:53:57 -0500) X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Original-Sender: "Emacs-devel" Xref: news.gmane.io gmane.emacs.devel:263391 Archived-At: > From: Richard Stallman > Cc: bugs@gnu.support, ulm@gentoo.org, dgutov@yandex.ru, ams@gnu.org, > arthur.miller@live.com, emacs-devel@gnu.org > Date: Mon, 25 Jan 2021 00:53:57 -0500 > > > Forgive me for a possibly naïve question, but why on earth would you > > want to modify a schema? It's the same as modifying a physical law. > > > Would you say that E = mc² is "non-free" because it cannot be > > meaningfully modified at will? > > We can't modify physics Exactly. And similarly with the data types described by a schema: changing the description doesn't change the things it describes, it just makes the description inaccurate and thus useless. > but a physicist might very well want to modify > the equation E = mc². For instance, perse might want to use natural units, > in which c = 1, which would give E = m. A schema supports extension, which IMO is the analogy of that. > And that's considering only _valid_ equations for relating mass and > energy. I might want to modify the equation to make it be valid for > some other purpose, or to present an instance of an equation which is > not valid. I very much hope we won't fight a Quixotic battle so that we could make a schema invalid.