linux-kernel - RE: Dual-Licensing Linux Kernel with GPL V2 and GPL V3

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Date:	Thu, 21 Jun 2007 11:17:50 -0700
From:	"David Schwartz" <davids@...master.com>
To:	<alan@...rguk.ukuu.org.uk>
Cc:	"Linux-Kernel@...r. Kernel. Org" <linux-kernel@...r.kernel.org>
Subject: RE: Dual-Licensing Linux Kernel with GPL V2 and GPL V3

> On Wed, 20 Jun 2007 12:55:10 -0700

> "David Schwartz" <davids@...master.com> wrote:

> > A key is a number. A signature is a number. They are neither
> > statements nor
> > instructions. The argument that GPLv2 prohibits Tivoization is
> > really and
> > truly absurd. It has neither a legal nor a moral leg to stand on.

> A computer program is a number too.

No, it's not. It can be expressed as a number, but it is not a number.

Keys are purely numbers, they are nothing else. Signatures are pure
primitive facts encoded as numbers (authority X blessed object Y).

A computer program is a set of instructions to accomplish a particular
result. It can be expressed as a number, but that doesn't mean it is a
number.

It might be true in principle to develop a scheme whereby every physical
object uniquely corresponds to an extremely large number. That doesn't turn
physical objects into numbers.

DS

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