Jose opined

What would it feel like to breathe nitrogen instead of oxygen or air? I
presume one would just get euphoric, pass out, and die, with nary a clue.


Skip the euphoria, and you have your answer.

Ok, then what causes the euphoria which is supposed to be part of
hypoxia, and why doesn't it apply here?

A pure N2 atmosphere has no O2. So unconsciousness occurs quickly, and
unexpectedly, leaving no time for euphoria.

It is not quit as fast as decompressioin, but fast with no warning. Scroll
down http://www.cfht.hawaii.edu/~warren/s...nicLiquids.htm for
example.


-ash
Cthulhu in 2005!
Why wait for nature?