From mboxrd@z Thu Jan 1 00:00:00 1970 X-Msuck: nntp://news.gmane.io/gmane.science.mathematics.categories/3134 Path: news.gmane.org!not-for-mail From: Eduardo Dubuc Newsgroups: gmane.science.mathematics.categories Subject: Re: cracks and pots Date: Fri, 17 Mar 2006 14:26:38 -0300 (ART) Message-ID: NNTP-Posting-Host: main.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Trace: ger.gmane.org 1241019113 7382 80.91.229.2 (29 Apr 2009 15:31:53 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Wed, 29 Apr 2009 15:31:53 +0000 (UTC) To: categories@mta.ca Original-X-From: rrosebru@mta.ca Fri Mar 17 23:25:20 2006 -0400 Return-path: Envelope-to: categories-list@mta.ca Delivery-date: Fri, 17 Mar 2006 23:25:20 -0400 Original-Received: from Majordom by mailserv.mta.ca with local (Exim 4.52) id 1FKS0l-0003p0-0S for categories-list@mta.ca; Fri, 17 Mar 2006 23:21:51 -0400 Original-Sender: cat-dist@mta.ca Precedence: bulk X-Keywords: X-UID: 80 Original-Lines: 30 Xref: news.gmane.org gmane.science.mathematics.categories:3134 Archived-At: Well Robert, you are right in every particular fact and detail about Einstein and about relativity, there is not question about this. But there is not question either that is not Einstein or relativity that concern us here. I am right about the fact that introducing Einstein and differential geometry into our present discussion on the interaction of string theory and category theory was an infantile attempt to attack Motl's views. Worst than that, it introduces a distraction to Marta's principal issues. I can not be on the side of Motl, neither on the side of Baez, since I am ignorant about string theory. I point out that the Motl-Baez interaction gives rise to important issues that concern what it is good and what is bad mathematics or physics. In particular, what is good and what is bad category theory. Also, the meaning and profitable consequences of being in a fashionable subject. These issues were clearly exposed in Marta's postings, and we should be ready to talk about them publicly. In March 16 we got very good and pertinent postings that make us see other angles, think and learn: Baez's, Paul Taylor's, Dusko's and Vincent Shmitt's postings. Silences are also meaningful. e.d.