Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.2 9/18/84; site brl-tgr.ARPA Path: utzoo!watmath!clyde!bonnie!akgua!sdcsvax!dcdwest!ittvax!decvax!genrad!wjh12!talcott!harvard!seismo!brl-tgr!gwyn From: gwyn@brl-tgr.ARPA (Doug Gwyn) Newsgroups: net.physics Subject: Re: two questions for physicists Message-ID: <6194@brl-tgr.ARPA> Date: Thu, 29-Nov-84 18:47:58 EST Article-I.D.: brl-tgr.6194 Posted: Thu Nov 29 18:47:58 1984 Date-Received: Sun, 2-Dec-84 05:16:10 EST References: <6766@watdaisy.UUCP> Organization: Ballistic Research Lab Lines: 12 Excellent questions! I frankly don't think the "big bang" theorists have properly considered such epistemological questions as what time MEANS in their models of the "first 10^-43 seconds of the universe". All subatomic particles of a given type are assumed to be identical because that leads to predictions that work. I'm sure someone will mention the idea of an anti-particle being a normal particle traveling "backward in time" in this context; that idea does not explain why all particles of a given type appear identical, though, since not every creation-annihilation interaction involves particle/anti-particle pairs.