Re: [arch-d] [Iotops] How old is too old and what this means for product lifecycles? Re: [Last-Call] [TLS] Last Call: <draft-ietf-tls-oldversions-deprecate-09.txt> (Deprecating TLSv1.0 and TLSv1.1) to Best Current Practice

Toerless Eckert <tte@cs.fau.de> Tue, 08 December 2020 05:43 UTC

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Date: Tue, 08 Dec 2020 06:43:07 +0100
From: Toerless Eckert <tte@cs.fau.de>
To: John Levine <johnl@taugh.com>
Cc: architecture-discuss@ietf.org
Message-ID: <20201208054307.GG44833@faui48f.informatik.uni-erlangen.de>
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Subject: Re: [arch-d] [Iotops] How old is too old and what this means for product lifecycles? Re: [Last-Call] [TLS] Last Call: <draft-ietf-tls-oldversions-deprecate-09.txt> (Deprecating TLSv1.0 and TLSv1.1) to Best Current Practice
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On Mon, Dec 07, 2020 at 04:16:52PM -0500, John Levine wrote:
> Yesterday my wife brought me a table lamp her mother bought around
> 1960 where the cord had frayed. The cord was pretty long so I snipped
> off the frayed part, carefully peeled off the felt that was glued to
> the bottom of the lamp, removed the socket and took it apart with a
> screwdriver, attached the new end of the cord to the socket, put it
> back together, unscrewed and remounted the cord-mounted switch, put
> the felt back with double-stick tape, and it's probably good for
> another 60 years. Oh, and I replaced the old CF bulb with a lower
> wattage LED which fits in the same socket.
> 
> Will we ever have computers like that?  I'm not holding my breath.

"Home" computers from the 80th continue to exist as virtual machines,
their software will probably survive a lot of hardware/software from today:
even if you would emulate todays hardware to run todays software in the 
future, it would be dependent on many unspecified network interactions
nobody can reproduce in 20 years.

Vice versa, when you buy a lamp today, its much more unlikely that it will
have a replaceable, standard socket bulb. Instead more likely a "lifetime"
proprietary LED module which will fail 1 usec after the manufacturer has
stopped offering replacement parts. Not to speak of a quite exhaustive
matrix of incompatibilities between different dimmer types and LED high-voltage
converter circuit types.

Cheers
    Toerless

> -- 
> Regards,
> John Levine, johnl@taugh.com, Primary Perpetrator of "The Internet for Dummies",
> Please consider the environment before reading this e-mail. https://jl.ly
> 
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-- 
---
tte@cs.fau.de