[from Gary Cziko 930622.0323 UTC]
Rick Marken said:
After thinking
about this for a bit I realize that I am wrong -- there is no such
thing as a collective controlled variable. ...
Tom Bourbon said:
Glad you have seen the light, brother! I thought you were going a little
too far in your interpretation of the three-line pattern. It *is* a
controlled variable (but not a collective one), some times, but not others.
But don't collective controlled variables exist? I can understand why the
above example doesn't count as one, but what about the situation when two
or more people have a common reference level but neither alone can satisfy
it. For example, my wife and I both want to see the picnic table in the
shade (it is now in the sun), but neither one of use alone can get it there
(too heavy and big). In this case we both have the same reference level
but we don't have adequate output functions unless we put them together.
Shared reference levels, combined output functions.
Or what about the warehouse worker helping the truck driver back up to a
narrow loading dock? Both of them want to see the truck docked, but
neither can do it alone. Here it has to do with the driver making use of
the perceptual functions of the warehouse worker. Again, there are shared
reference levels here. But this time the two individuals are sharing their
perceptual functions.
Then there is the case when both my wife and I want to have the doors
locked before we go to sleep. If she goes up to bed first, I lock the
doors. If I go up first, she locks them. Here we have again a shared
reference level, but we share neither output functions nor perceptions to
lock the doors.
--Gary
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