From [Marc Abrams (2005.02.13.1449)]
In a message dated 2/13/2005 2:46:28 P.M. Eastern Standard Time, marken@MINDREADINGS.COM writes:
[From Rick Marken (2005.02.13.1140)]
Marc Abrams 92005.02.13.1339)–
Rick Marken (2005.02.13.1015)
I do consider myself an ardent advocate of Bill’s ideas.
Yes, with the key word here being advocate. You don’t question, nor
do you inquire. You are the ‘sponge’ Bill likes to have around… You
are uncritical of him and always seem to defer to him.
I never realized that all the experiments I did were advocacy pieces.
Lucky they came out supporting PCT, I guess.
Although dripping with sarcasm, I’m going to show you why this is one of your more asute observations.
Once Powers worked out the mathematics in the tracking task, what he had was a series of equations that fit the data to the tracking task, and as long as you did a tracking task the equations worked well, and of course they should have. This is called ‘deductive’ reasoning. That is, the conclusion is already at least implicitly known from the premises. This is not some trick. Mathematical proof is based on this. So once the equations were found to correlate to the data, you could just about bet the house that any one doing a tracking task could and would ‘validate’ the model and the equations.
The real problem comes next.
What you have been ‘validating’ all these years is the mathematical model of a human doing a tracking task, not PCT per se, or that PCT exists as such in a living entity. What you have shown, is that there seems to be a process that includes negative feedback in a motor control system in humans. Well surprise, surprise; Graham Brown knew this in 1914.
Bill got published in Science & got rave reviews from people like George Richardson originally because of the HIERARCHY, NOT control. By 1973, control was a firmly established fact in physiology. But it seemed Powers had an answer for the connection between cognition and motor control IF his ideas about the hierarchy were right, and we still don’t have an answer to that question today.
So Rick, I don’t know exactly what you have been validating over these years, but it has not been a generalized theory of human behavior, and frankly I’m not really sure I know what PCT is, or is not at this point, or exactly what it is supposed to represent.
I don’t feel bad though because I seem to be in very good company. I hope you and Powers choose to share what PCT actually is someday with the rest of us. That is except for Martin Taylor. He already knows it as well. Not bad, 3 and counting, but you don’t like Martin’s take on a number of issues either, so I guess we are back down to two.
Rick, why do you think that after 35 years, only two people actually know the theory? Don’t you find that strange?
Maybe your models are not very convincing, or maybe PCT isn’t. Something sure as hell isn’t to a load of folks.
But I know that doesn’t really bother you, because the world just can’t recognize a good thing when it see’s it. Glad to know you think there are only two sighted people in the world.
regards,
Marc