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From: Junio C Hamano <gitster@pobox.com>
Subject: Re: [PATCH 3/3] name-rev: --weight option (WIP)
Date: Wed, 29 Aug 2012 21:10:42 -0700
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Cc: git@vger.kernel.org, Greg KH <gregkh@linuxfoundation.org>
To: Jeff King <peff@peff.net>
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Jeff King <peff@peff.net> writes:

> OK. I didn't think too hard about it, so I'll trust you that it is not
> easy. I wonder if using the generation number would be another way of
> defining "oldest" that would be easier to calculate.

Go back to my illustration to Greg and think about the implication
of "TONS!" side branch in the picture has on the generation numbers.