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Date: Sat, 26 Mar 2005 22:11:12 +0100
To: "Doug Ewell" <dewell@adelphia.net>,
	"LTRU Working Group" <ltru@ietf.org>
From: "JFC (Jefsey) Morfin" <jefsey@jefsey.com>
Subject: Re: [Ltru] Shelf life of data (was: Re: Question)
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At 18:22 26/03/2005, Doug Ewell wrote:
>JFC (Jefsey) Morfin <jefsey at jefsey dot com> wrote:
> > Retro compatibility is offered for a long nowhere. Try to use your
> > 1930 telephone set, I am not sure it will work. Try to publish an
> > Internet 1990 terminology. Try to use the root servers file of 1995,
> > it will may be still work partly. Try to use DOS on your PC, it works
> > very well, but you are missing a lot of things.
>
>People have been quoting RFC 822, which is 23 years old, on this list.
>Even though it has been updated by RFC 2822, obviously many of the basic
>philosophies and terminology still apply.

I do not fully understand how the point applies here. What we decided in 
1984 and which still makes the today namespace was in line with fundamental 
principles (root name concept). It will certainly last for ever as intrisic 
to a name space.

> > Objection to a decade obsolecense cycle?
>
>It's much too general to apply blindly.  Some standards and technologies
>are obsolete within a year or two; others are good for decades.  ASCII
>is 42 years old (or 38, depending on what you mean by "ASCII"), and yet
>many people still consider it the lowest common denominator necessary to
>ensure reliable communications.
>
>There's nothing magic about 10 years.

Nothing. In real life you need to take decisions. When you need something 
to be applied, you need a good mnemonic. It also turns out from experience 
that a decade seems to be the absolecense cycle of the technology itself.

Take care. Happy Easter.
jfc


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