From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on inbox.vuxu.org X-Spam-Level: X-Spam-Status: No, score=0.5 required=5.0 tests=DKIM_INVALID,DKIM_SIGNED, MAILING_LIST_MULTI,RCVD_IN_DNSWL_NONE,RDNS_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.2 Received: (qmail 26345 invoked from network); 20 Mar 2020 15:05:10 -0000 Received-SPF: pass (minnie.tuhs.org: domain of minnie.tuhs.org designates 45.79.103.53 as permitted sender) receiver=inbox.vuxu.org; client-ip=45.79.103.53 envelope-from= Received: from unknown (HELO minnie.tuhs.org) (45.79.103.53) by inbox.vuxu.org with ESMTP; 20 Mar 2020 15:05:10 -0000 Received: by minnie.tuhs.org (Postfix, from userid 112) id 7A8079CD87; Sat, 21 Mar 2020 01:05:02 +1000 (AEST) Received: from minnie.tuhs.org (localhost [127.0.0.1]) by minnie.tuhs.org (Postfix) with ESMTP id 3499B9D55A; Sat, 21 Mar 2020 01:04:32 +1000 (AEST) Authentication-Results: minnie.tuhs.org; dkim=fail reason="unknown key version" (0-bit key; unprotected) header.d=opencsw.org header.i=@opencsw.org header.b="gdM/c4U5"; dkim-atps=neutral Received: by minnie.tuhs.org (Postfix, from userid 112) id 6953A9CD9D; Sat, 21 Mar 2020 01:04:30 +1000 (AEST) X-Greylist: delayed 329 seconds by postgrey-1.36 at minnie.tuhs.org; Sat, 21 Mar 2020 01:04:27 AEST Received: from mail.opencsw.org (mail.opencsw.org [82.220.5.51]) by minnie.tuhs.org (Postfix) with ESMTPS id 1E0B49D551 for ; Sat, 21 Mar 2020 01:04:27 +1000 (AEST) Received: from localhost (localhost [127.0.0.1]) by mail.opencsw.org (Postfix) with ESMTP id 48kRk608Kxz1Fk; Fri, 20 Mar 2020 15:58:54 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=opencsw.org; h= x-mailer:to:references:message-id:content-transfer-encoding:date :date:in-reply-to:from:from:subject:subject:mime-version :content-type:content-type; s=csw02; t=1584716330; bh=tPSVeNEYEI BoZS9DUAXguIcxuCenrbaphngeWH5UMjs=; b=gdM/c4U5L0OetLXL7T5zzRaE0A qE1nkk7Hgs3dR/nAAW4rGkJoa7YPyOi6mBDWCfmaei9N3x9zffzc874W+rh1sCSX hsi32e3zSbOZeOdPYbh0NbcfDkQSLpzwB6StMkrnKWQ7QyHN4e4m0GxfVNb/2uaw JxXHqebvr/mL427r9dtqLMsz4MT8Yzj2VykY4D4MJrJ4WBsHv+6NLDDQ74K/GtgY idFXiuqwFaztLawg07HsvvrO70MNMvh+rc4G/Lrl3R3eFEgL4grUYUulIfTVoQ8/ yJJUkotLlbI1VooVdm2tEoJMLuYWq2HRrbmZGKXpkl8zUb8RKavoezTY6eeg== X-Virus-Scanned: amavisd-new at opencsw.org Received: from mail.opencsw.org ([127.0.0.1]) by localhost (mail.opencsw.org [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id LATnVK9JSDga; Fri, 20 Mar 2020 15:58:50 +0100 (CET) Received: from andromeda.fritz.box (177-221-103-86.dynamic.dsl.tng.de [86.103.221.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) (Authenticated sender: dam) by mail.opencsw.org (Postfix) with ESMTPSA id 48kRk15s3rz1Fj; Fri, 20 Mar 2020 15:58:49 +0100 (CET) Content-Type: text/plain; charset=utf-8 Mime-Version: 1.0 (Mac OS X Mail 13.0 \(3608.60.0.2.5\)) From: Dagobert Michelsen In-Reply-To: <20200320145257.GD10251@mcvoy.com> Date: Fri, 20 Mar 2020 15:58:45 +0100 Content-Transfer-Encoding: quoted-printable Message-Id: References: <20200320140308.4FBBB18C073@mercury.lcs.mit.edu> <20200320145257.GD10251@mcvoy.com> To: Larry McVoy X-Mailer: Apple Mail (2.3608.60.0.2.5) Subject: Re: [TUHS] The most surprising Unix programs X-BeenThere: tuhs@minnie.tuhs.org X-Mailman-Version: 2.1.26 Precedence: list List-Id: The Unix Heritage Society mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: TUHS main list Errors-To: tuhs-bounces@minnie.tuhs.org Sender: "TUHS" Hi Larry, Am 20.03.2020 um 15:52 schrieb Larry McVoy : > If someone understands how this all works, my less capable brain would > love an explanation. My dad and my kid have told me that classical > music is math but I've never seen it. Seems like this is probably > the example I need. For this topic I=E2=80=99d recommend the excellent book "G=C3=B6del, = Escher, Bach: An Eternal Golden Braid=E2=80=9C from Douglas R. Hofstadter which = discusses the relationship especially between Bach and math and also gives a nice introduction into logic and philosopy. Best regards =E2=80=94 Dago --=20 "You don't become great by trying to be great, you become great by = wanting to do something, and then doing it so hard that you become great in the process." - xkcd = #896