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Carl, what many people don't realize is the
serious insult to the microcirculatory system
from diving high PPN2's. Many also mistake
the body and mind's tolerance system - it is
really a numbing response. When one dives
narcotic mixes, the slow onset generally
prevents the feeling of impact, and since the
higher order brain functions are effected
first, as with any anesthetic, the now
gradually impared reasoning tells you
everything is ok, much like any drug or
alcholol. The ego then defends this line
of reasoning, as with any mood altering
substance, right to the surface, further
entrecnching the concept.
A good example of how it sneaks,
for those who's ego tells then their
higher order functions could not conceiveably
be impaired is the Frog concept: if you
place a frog in boiling water, he will
jump out (if you start a diver on air
at 200 feet, he will feel the difference
clearly). If you put the frog in luke-
warm water and slowly bring the water to
boil, he will die there.
Experience of the the commercial and
military, as well as recreational community
is that noticable impariment should begin
around 130 fsw, while any increase of ppn2
is worse than the previous increment, so
20 feet is worse than 10. It is only the
"so called" technical agencies who have
redifined this to narcotic depths, and
attached some significance to tolerance
of mind altering chemicals or drugs.
Those with the biggest egos think
they can handle the most depth on air.
Those who know better do not. I am one of
latter: my ego is so big that I would not
want to look foolish, so I dive less than
130 aed.
- George
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