From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jeff King Subject: Re: [PATCH] Implement fast hash-collision detection Date: Tue, 29 Nov 2011 05:29:29 -0500 Message-ID: <20111129102929.GA28024@sigill.intra.peff.net> References: <1322546563.1719.22.camel@yos> <20111129090733.GA22046@sigill.intra.peff.net> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: QUOTED-PRINTABLE Cc: git@vger.kernel.org To: =?utf-8?B?w4Z2YXIgQXJuZmrDtnLDsA==?= Bjarmason X-From: git-owner@vger.kernel.org Tue Nov 29 11:29:41 2011 Return-path: Envelope-to: gcvg-git-2@lo.gmane.org Received: from vger.kernel.org ([209.132.180.67]) by lo.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1RVKwV-0000Na-77 for gcvg-git-2@lo.gmane.org; Tue, 29 Nov 2011 11:29:40 +0100 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753783Ab1K2K3e convert rfc822-to-quoted-printable (ORCPT ); Tue, 29 Nov 2011 05:29:34 -0500 Received: from 99-108-226-0.lightspeed.iplsin.sbcglobal.net ([99.108.226.0]:55580 "EHLO peff.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750880Ab1K2K3e (ORCPT ); Tue, 29 Nov 2011 05:29:34 -0500 Received: (qmail 29987 invoked by uid 107); 29 Nov 2011 10:36:07 -0000 Received: from sigill.intra.peff.net (HELO sigill.intra.peff.net) (10.0.0.7) (smtp-auth username relayok, mechanism cram-md5) by peff.net (qpsmtpd/0.84) with ESMTPA; Tue, 29 Nov 2011 05:36:07 -0500 Received: by sigill.intra.peff.net (sSMTP sendmail emulation); Tue, 29 Nov 2011 05:29:29 -0500 Content-Disposition: inline In-Reply-To: Sender: git-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: git@vger.kernel.org Archived-At: On Tue, Nov 29, 2011 at 11:24:18AM +0100, =C3=86var Arnfj=C3=B6r=C3=B0 = Bjarmason wrote: > On Tue, Nov 29, 2011 at 10:07, Jeff King wrote: >=20 > > However, it may be of interest that the Sun is expected to burn out= in a > > mere 10^10 years[1]. >=20 > Off topic, but it's a a lot sooner than that. The total age of the su= n > is is around 10^10 (10 billion) years, but we're already ~4.6 billion > years along that line. Yeah, I checked Wikipedia, but rounded up for simplicity. I did use 5 billion for my fun fact at the end of the email, which is close to accurate. > However the Sun is currently in a stage of gradual heating until it > turns into a red giant in ~5 billion years. In around 500 million > years the earth will be uninhabitable as we know it, and in around 1 > billion years the surface will be hot enough to have boiled all the > oceans. In other words the earth in a billion years will probably loo= k > similar to how Venus looks now. Good point. If we want an accidental collision in the next 500 million years, we'd better step up the pace of development! -Peff