Why do computers rot the brain?

[SM Diver]

Uncle Pug, there is one inherent flaw in your theory on computer brain rotting, and the benefit of self-reliance: There are a certain percentage of all divers who are better off NOT using their pea-sized brains, at least not when computers are available. The computer, therefore, protects the diver from him own self. Not everyone is going to be a student of diving, like you.

Let's face it, especially here in Florida, there will be a good number of people who dive three or four times a year. You expect them to remember the tables (half the time, they can't remember how to turn on their computer). But, hey, they got a c-card in their wallet, so that must mean they know how to dive.

I was not diving in the days before good computers, but how many people have you run into that get confused looking at the dive tables. Throw in three or four foot seas, maybe a little nausea from taking your eyes off the horizon, multiple dives (oh, ****!, I forgot how to figure my pressure group when it's my third dive!), and the next thing you know you've got an "X" diver thinking he's an "F."

Computers are great. Dive with two. I have an AI Cobra and AI Vytec, enabling me to swith gasses during a dive.

As far as accident rates, I read that there is very little difference in safety comparisons between computer and no-computer, in part due to the overall low risk of DCS or DCI.

 

[Dr Deco]

Dear Readers:
Exercise and Decompression Physiology :lifter:

The exercise was performed prior to entering the altitude chambers and its ascent.
Mild exercise performed during depressurization would have aided in off gassing.

Strenuous Exercise and Nuclei Generation

The exercise described by me a couple of posts earlier in this thread illustrates several things. [ I have reinserted the ATTACHMENT.]

• In the upper figure, note that exercise has provoked bubble formation in many test subjects;
• Bubble formation is to a different degree in the various test subjects. The reason for the difference is not yet known;
• The loss of exercise-generated bubbles is not of a constant rate, some subjects lose nuclei faster.
• Some subjects did not generate microbubbles at all (right side of upper figure) or they lost them extremely fast;
• The average loss among all individuals (lower figure) allows one to say that nuclei loss had a half time of about 60 minutes.

DCS
There was no DCS in this study because the depressurization was too mild or the depress duration was too short.:doctor:

Individual Differences

All of these subjects went on the same profile. It was initially generated from laboratory data in a similar fashion to a decompression table. The out come in terms of bubble formation was in the hands of the test subjects themselves. Certainly no one chose whether to do the knee flexes of not since this was the study protocol. BUT DIVERS CAN CHOOSE whether they want to climb boat ladders with all of their gear, haul tanks around, etc. during the surface intervals.

Gas Loadings

Meters and tables will protect you from the high gas loadings, but they will not prevent nuclei formation. That is the diver’s responsibility.:nono:

Dr Deco :doctor:

 

[Uncle Pug]

tampascott once bubbled...
There are a certain percentage of all divers who are better off NOT using their pea-sized brains, at least not when computers are available.
<snip stuff>
Computers are great. Dive with two.

If having a pea-sized brain necessitates diving with a computer...
Then what does diving with two computers indicated?

 

[Aquamaniac]

Uncle Pug once bubbled...


If having a pea-sized brain necessitates diving with a computer...
Then what does diving with two computers indicated?

ooooh, nasty........

 

[Uncle Pug]

ooooh, nasty........

Perhaps you're right... it could be taken offensively...

I hope Scott can figure out that it was just in jest.

 

[Aquamaniac]

Of course he can, Scott is smart enough to differentuate.
Now if only he would start to use those damned tables!!

 

[SM Diver]

Uncle Pug once bubbled...


If having a pea-sized brain necessitates diving with a computer...
Then what does diving with two computers indicated?

LOL! Naw, that didn't offend me. Besides, I am about to start a thread looking for advice on a BP/Wings set-up for doubles, and I can't risk not having Sensei Pug's input.

I actually do use the tables. I carry onboard with me the RDP, and Nitrox tables for EAD and 02 exposure. I think I also have the RDP for 32 and 36. I'd by lying if I told you I figured my pressure group every dive, but if the computer doesn't seem "right", I'll look at them.

 

[-BlueHole-]

This is a very interesting topic,
but sound to me like a computer vs tables match...
why simply not use the best of the two :
plan your dive with the tables, carry your bottom timer etc and a cmputer, if u ever for some problems go "out" from the tables, you have a computer, or,
dive with a computer and carry a timer/tables... if the 'puter crashes you have the tables...
I alvays dive with my old aladin pro and a citizen watch with depth gauge, if one fails...

But Uncle what happen if all the lights ( principals and back ups) of me and my buddy dies ? (ok is an extreme case...but...) I dive mostly in lakes (no sea in Switzerland ;-0 )and below 20 mt is almost night...if I have a puter I can always go up slowly (but since is all dark I have to guess) and I'm sure if I hear bip bip I have to slow down, so I can reach the light in a "sure" way...
What would you do in a such case ?
(I'm just doing the devil's attourney)

 

[nradov]

http://www.baue.org/library/irvine_baue_talk.html#Dive_computers
http://www.baue.org/library/bakerscomputers.html

 

[MikeS]

Does anyone else see the irony of quoting the experts on why you should not use a computer because it can lead to dependency and limits flexability?