From: Linus Torvalds <torvalds@osdl.org>
To: apodtele <apodtele@gmail.com>
Cc: git@vger.kernel.org
Subject: Re: git and time
Date: Thu, 28 Sep 2006 09:53:56 -0700 (PDT) [thread overview]
Message-ID: <Pine.LNX.4.64.0609280949030.3952@g5.osdl.org> (raw)
In-Reply-To: <d620685f0609271749p30da81d6p25cb759bf793d327@mail.gmail.com>
On Wed, 27 Sep 2006, apodtele wrote:
>
> Shall we summarize? Time is a very important concept in physics.
Actually, even in physics (or very _much_ in physics), time doesn't
follow the nice procession that Matthew is kind of asking for.
In physics, particles can go backwards in time or forwards in time (the
_likelihood_ that a photon moves at exactly the speed of light is higher,
but on a quantum scale, strange things happen).
And everybody should by now know what relativity says: time does not
impose an "ordering" of events outside of the so-called "cone of light".
There is only an ordering imposed by _causality_, not by time.
That, btw, is very similar to git. The only _true_ ordering in git is
causality. Time itself tends to have certain properties that makes it
_look_ like it is about causality, but in real life there is just a strong
correlation.
Nature is sometimes stranger than our everyday experiences would have us
believe. And "time" is a hell of a lot more complicated than just a global
one-dimensional entity, steadily ticking away.
Linus
next prev parent reply other threads:[~2006-09-28 16:54 UTC|newest]
Thread overview: 120+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-09-28 0:49 git and time apodtele
2006-09-28 16:53 ` Linus Torvalds [this message]
-- strict thread matches above, loose matches on Subject: below --
2006-09-28 18:21 apodtele
[not found] <20060928170110.GD3650@socrates.priv>
2006-09-28 17:30 ` Matthew L Foster
2006-09-28 16:50 apodtele
2006-09-26 23:23 Matthew L Foster
2006-09-26 23:27 ` Johannes Schindelin
2006-09-26 23:32 ` Jakub Narebski
2006-09-26 23:33 ` Jeff King
2006-09-27 0:27 ` Matthew L Foster
2006-09-27 1:11 ` Junio C Hamano
2006-09-27 8:42 ` Andreas Ericsson
2006-09-27 15:28 ` Jeff King
2006-09-27 14:09 ` Matthew L Foster
2006-09-27 14:29 ` Andreas Ericsson
2006-09-27 18:01 ` Matthew L Foster
2006-09-27 18:10 ` Linus Torvalds
2006-09-27 20:44 ` Matthew L Foster
2006-09-27 20:51 ` Linus Torvalds
2006-09-27 21:16 ` Matthew L Foster
2006-09-27 21:01 ` Linus Torvalds
2006-09-27 21:44 ` Matthew L Foster
2006-09-27 21:48 ` Linus Torvalds
2006-09-27 22:28 ` Matthew L Foster
2006-09-27 22:54 ` Linus Torvalds
2006-09-27 23:02 ` Shawn Pearce
2006-09-27 23:14 ` Linus Torvalds
2006-09-28 0:12 ` Matthew L Foster
2006-09-28 0:21 ` Jeff King
2006-09-28 0:23 ` Shawn Pearce
2006-09-28 1:39 ` Matthew L Foster
2006-09-28 2:21 ` Linus Torvalds
2006-09-29 7:52 ` Andreas Ericsson
2006-09-29 14:09 ` Johannes Schindelin
2006-09-29 14:21 ` Andreas Ericsson
2006-09-28 1:23 ` Junio C Hamano
2006-09-28 1:48 ` Matthew L Foster
[not found] ` <20060927220404.8e216945.seanlkml@sympatico.ca>
2006-09-28 2:04 ` Sean
2006-09-28 2:49 ` Matthew L Foster
2006-09-28 2:43 ` David Lang
[not found] ` <20060927230330.90c63d23.seanlkml@sympatico.ca>
2006-09-28 3:03 ` Sean
2006-09-28 3:26 ` Tom Prince
2006-09-28 13:17 ` Theodore Tso
2006-09-28 14:50 ` Matthew L Foster
2006-09-28 15:29 ` Rogan Dawes
2006-09-28 16:55 ` Matthew L Foster
2006-09-28 17:11 ` Linus Torvalds
2006-09-28 17:28 ` Junio C Hamano
2006-09-28 17:33 ` Matthew L Foster
2006-09-28 17:42 ` Johannes Schindelin
2006-09-28 19:43 ` Matthew L Foster
2006-09-28 19:50 ` Shawn Pearce
2006-09-28 22:29 ` Matthew L Foster
2006-09-28 22:35 ` Johannes Schindelin
2006-09-28 22:55 ` Matthew L Foster
2006-09-29 8:16 ` Andreas Ericsson
2006-09-28 18:01 ` Linus Torvalds
2006-09-28 19:18 ` Matthew L Foster
2006-09-29 0:27 ` Theodore Tso
2006-09-29 1:44 ` Matthew L Foster
2006-09-29 2:28 ` Junio C Hamano
2006-09-28 20:36 ` Robin Rosenberg
2006-09-28 20:46 ` A Large Angry SCM
2006-09-28 22:12 ` Matthew L Foster
2006-09-28 22:25 ` A Large Angry SCM
2006-09-28 22:31 ` Matthew L Foster
2006-09-28 22:45 ` Matthew L Foster
2006-09-28 3:07 ` Nicolas Pitre
2006-09-28 3:39 ` Tom Prince
2006-09-28 3:47 ` Shawn Pearce
2006-09-28 4:07 ` Junio C Hamano
2006-09-28 1:36 ` Theodore Tso
2006-09-28 2:29 ` Matthew L Foster
2006-09-28 2:51 ` Nicolas Pitre
2006-09-28 4:03 ` Junio C Hamano
2006-09-28 14:34 ` Nicolas Pitre
2006-09-28 16:05 ` Junio C Hamano
2006-09-29 22:27 ` Junio C Hamano
2006-09-30 4:50 ` Shawn Pearce
2006-09-30 7:28 ` Junio C Hamano
2006-09-30 17:36 ` Linus Torvalds
2006-09-30 23:04 ` Junio C Hamano
2006-10-01 0:13 ` Linus Torvalds
2006-10-01 0:24 ` Junio C Hamano
2006-10-01 8:07 ` Junio C Hamano
2006-10-01 8:37 ` Johannes Schindelin
2006-10-02 23:50 ` Jakub Narebski
2006-09-29 20:42 ` Jakub Narebski
2006-09-27 21:56 ` Shawn Pearce
2006-09-27 22:46 ` Matthew L Foster
2006-09-27 22:57 ` Shawn Pearce
2006-09-27 18:53 ` Andy Whitcroft
2006-09-27 16:29 ` Linus Torvalds
2006-09-27 18:00 ` Edgar Toernig
2006-09-27 18:09 ` Linus Torvalds
2006-09-29 20:58 ` Jakub Narebski
2006-09-27 1:58 ` Linus Torvalds
2006-10-03 0:01 ` Jakub Narebski
2006-09-27 3:34 ` Jeff King
[not found] ` <20060926234309.b16aa44e.seanlkml@sympatico.ca>
2006-09-27 3:43 ` Sean
2006-09-27 4:50 ` Junio C Hamano
[not found] ` <20060927010437.5fa57ed0.seanlkml@sympatico.ca>
2006-09-27 5:04 ` Sean
2006-09-27 5:52 ` Jeff King
[not found] ` <20060927021529.69fd7274.seanlkml@sympatico.ca>
2006-09-27 6:15 ` Sean
2006-09-27 4:28 ` Shawn Pearce
2006-09-27 4:53 ` Junio C Hamano
2006-09-27 10:13 ` Junio C Hamano
2006-09-27 15:11 ` Shawn Pearce
2006-09-27 20:46 ` Junio C Hamano
2006-09-27 21:36 ` Shawn Pearce
[not found] ` <20060927002745. 15344.qmail@web51005.mail.yahoo.com>
2006-09-27 0:56 ` Sean
[not found] ` <20060926205632.5d487cc9.seanlkml@sympatico.ca>
2006-09-27 0:47 ` David Lang
[not found] ` <20060926210721.36eb509d.seanlkml@sympatico.ca>
2006-09-27 1:07 ` Sean
2006-09-27 1:34 ` Junio C Hamano
2006-09-27 1:31 ` David Lang
[not found] ` <20060926215836.f4a25297.seanlkml@sympatico.ca>
2006-09-27 1:58 ` Sean
2006-09-27 2:31 ` Junio C Hamano
[not found] ` <20060926224133.714337eb.seanlkml@sympatico.ca>
2006-09-27 2:41 ` Sean
2006-09-29 17:37 ` Jan Harkes
[not found] ` <20060929134616.7966d18c.seanlkml@sympatico.ca>
2006-09-29 17:46 ` Sean
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