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Date: Fri, 14 May 1999 11:32:53 +0200
From: Frank Riffel <frank.riffel@en*.co*>
To: "Taylor, John" <john.taylor@cs*.co*.uk*>
CC: techdiver@aquanaut.com
Subject: Re: Abyss Explorer Nitrox
"Taylor, John" wrote:

> Dear List,
>
> Please enlighten me:
>
> What is the difference between following a deco schedule produced from a set
> of (computer-generated) tables, and following a deco schedule produced by a
> computer on your wrist? (Apart from algorithm differences and that the
> computer produces a schedule for the dive you actually did)

Basicaly none. But you cannot account for deco related issues that are not
addressed by the implemented algorithm. I mean which schedule would you
follow if you got into strong current and had to expend some work? A table
would give you at the chance to select the next deeper/longer schedule a
computer won't.

My impression is that a computer is nothing worth without a proper planing, but
then where is the advantage? You have to select the right gases, make a gas
volume planing, make the deco calculations and tables in any way -- or do you
want to dive without having a contingency table?

A thing I worry about is that computers will make divers more slopy. They allow
users to shift away from the "Plan your dive, dive your plan!" paradigm.
Also computers give more information than required. Hell, why do I need to know
the current pO2 or CNS% ?  There is enough task loading we don't need such an
information during a dive! You select your gases _before_ to stay out of any
tox. problems!

Greetings, Frank


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