(Gavin Ritz 2010.07.25. 00.43NZT)
Hi there Boris
and Bruce
I can’t see how
PCT can be an equilibrium theory when it shows clearly the asymmetry between input
and the output. Unless what one means by equilibrium is “stability”.
Further an organism can’t be in equilibrium in the scientific sense (thermodynamical
sense) because then it would be dead.
Any organism is always
in some state far-from-equilibrium (Prigogine) this of-course doesn’t mean
that it can’t seek some stability like a particular temperature but to
keep that temperature it requires amounts of energy to keep it there. In PCT
the reference signal at the highest level can never be zero if it was then we
would be dead. The brain actually uses more energy when in its so called stable
state. Almost like stretching rubber band further in anticipation of some input.
The difference between
any living organism and inorganic matter is information; once matter and
information are combined it seems that we have a far-from equilibrium system.
Remove the information and it’s just matter (equilibrium system- a rock).
The PCT type model is the result of information and matter combined.
Further once you add
HPCT into the mix, and I’m still not quite sure how in HPCT qualities
(sensations) and quantities (intensities) are quite reconciled, but as HPCT
stands now it does, we know that science has no place for qualities, qualities
add a sort of variety that cannot be measured so this also makes PCT irreconcilable
with physics at some level (.See Schrödinger ”What is Life”).
I must conclude from my
perspective that PCT is a far-from-equilibrium theory.
Regards
Gavin