From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Richard Stallman 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 00:53:57 -0500 Message-ID: References: <83zh0y2jtu.fsf@gnu.org> Reply-To: rms@gnu.org Content-Type: text/plain; charset=Utf-8 Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="9393"; 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: Eli Zaretskii Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Mon Jan 25 06:56:42 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 1l3uri-0002La-3D for ged-emacs-devel@m.gmane-mx.org; Mon, 25 Jan 2021 06:56:42 +0100 Original-Received: from localhost ([::1]:60318 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1l3urh-0006Fw-5U for ged-emacs-devel@m.gmane-mx.org; Mon, 25 Jan 2021 00:56:41 -0500 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:59072) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1l3upA-00047P-VU for emacs-devel@gnu.org; Mon, 25 Jan 2021 00:54:04 -0500 Original-Received: from fencepost.gnu.org ([2001:470:142:3::e]:44625) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1l3upA-0000Ze-Gr; Mon, 25 Jan 2021 00:54:04 -0500 Original-Received: from rms by fencepost.gnu.org with local (Exim 4.82) (envelope-from ) id 1l3up3-0003vh-Lj; Mon, 25 Jan 2021 00:53:57 -0500 In-Reply-To: <83zh0y2jtu.fsf@gnu.org> (message from Eli Zaretskii on Sun, 24 Jan 2021 21:53:01 +0200) 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:263376 Archived-At: [[[ To any NSA and FBI agents reading my email: please consider ]]] [[[ whether defending the US Constitution against all enemies, ]]] [[[ foreign or domestic, requires you to follow Snowden's example. ]]] > 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, 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. Then perse might want to generalize to handle an object not at rest, by including its momentum. That gives E² - p² = m². Or perse might want to express that in 4-dimensional covariant form as μ 2 2 2 p p = m = p p - p p - p p - p p = E - p μ 0 0 1 1 2 2 3 3 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. -- Dr Richard Stallman Chief GNUisance of the GNU Project (https://gnu.org) Founder, Free Software Foundation (https://fsf.org) Internet Hall-of-Famer (https://internethalloffame.org)