[From Rick Marken (960226.1230)]
Stefan Balke (960226.13.40 MEZ) --
I mean the case when the object of desire is still unvisible or even
completly unknown...when there is no direct feedback about coming closer to
or getting farer from the intended result, because neighter the way my
actions are perceived from the relevant person nor the indended result
itself is well known.
There is always direct, visible feedback about the state of a controlled
perceptual variable. Direct visible feeback is just the perception of the
state of the controlled variable.
It is important to remember that what we control (or try to control) are
perceptual _variables_; aspects of our experience that can change states over
time. For example, we don't control a "car" per se; rather, we control
variable perceptual aspects of a car; its position on the road, its speed,
its color, etc. The controlled perceptual variable in your example above is a
_relationship_ variable; it might be called the "degree to which I have a
loving relationship with a suitable girlfriend"; we can call this variable
"girlfriend" for short.
When you start controlling for a particular (reference) state of the
girlfriend perception (let's call that reference state "Michelle Pfieffer")
you are probably perceiving something quite different than the reference
state of the perception - - something more like "loving relationhsip
with nobody" or "loving relationship with my dog".
So you start to do things that, you hope, will influence the state of the
"girlfriend" perceptual variable, moving it from "nobody" to "Michelle
Pfieffer". Since you (like most guys) have no clue about how to influence
this variable, you consciously try different things that you've heard of (go
to singles bars, become a rich movie mogul, drive a Ferrari, learn PCT, etc);
that is, you select references for other perceptions in the hope that
by bringing those perceptions to their reference state you will be able to
move the "girlfriend" perception towards its reference.
So you are always getting "feedback" about the state of the girlfriend
variable; you know if you have a relationship with a girl and you know
whether she looks more like Michelle Pfieffer or Mother Teresa. You also
"know" whether the "girlfriend" variable is moving closer to or getting
farther from its reference; this "knowledge" is embodied in the error signal.
The error is increasing if you are dating Mother Teresa and it's decreasing
if a beautiful girl just said "hi" to you.
If the controller doesn't have good control over the "girlfriend" variable --
that is, if there is no connection between error and action that reliably
brings the perception of "girlfriend" toward its reference level -- then the
error signal probably just drives the rate at which the controller randomly
changes from one "girlfriend getting" action to another. This is the E. coli
approach to getting a girlfriend. And it works. Although you might not end up
with "Michelle Pfieffer", you will end up with something close (in my case,
I came up with something that was not only close but even better; my wife.
And it was definitely a random walk getting there;-)
Best
Rick