[From Nicolas M. Kirchberger 2015.04.16.2119]
[From Rick Marken (2015.04.15.1750)]
NMK: Yes, in the tracking example, the variety of behaviors by the prey may be considered as disturbance variables. Here, instead of thinking of those variable as values, we can think of them as “definitions” of behaviors. So if the prey for instance change its skin’ color or hide beneath some foliages or things like that, they in effect change the definition the predator is looking for.
If the predator do not knows about the other definition, he will be fooled and the prey will have successfully escaped. The prey will therefore have had an “higher definition” of some behavior than the predator. Similarly, if the predator is shrewder (or has more various definitions or variety) and look closer in the foliage or knows the prey can change color and looks for it, then it has more variety than its prey and probably will be able to get it.
The law of requisite variety states that “only variety can absorb variety.” Just like a joker can beat all other cards in most card games because it can take any value.
Here’s a great short video illustrating this idea:
Stargaze sg-1 super soldier, the ultimate soldier, able to absorb any kind of energy or disturbance, is able to easily accomplish its missions.
http://youtu.be/jZnOKHrnEfQ
Here’s further explanations by Ashby himself (in plain English ) 
Ashby’s explanation of requisite variety
http://pcp.vub.ac.be/books/AshbyReqVar.pdf
NMK: Yes it’s the political/economical/philosophical/ethical/legal system that strive to maximize liberty (the numbers of choices available for a person to choose from, also called the person’s causal capacity) and minimize the level of coercion or obligations caused by other people (and reality through technological development).
Here’s a some short video explanations exposing libertarianism’s basic principles:
Philosophy of liberty short movie (8 min)
http://youtu.be/muHg86Mys7I
St0p and l00k individualism short movie serie
http://youtu.be/dJqSsrFDiSA
NMK: That would be the number of choices available to a person, or the number of different paths a person can take to reach his/her goals.
Here’s a document developing these ideas:
http://biologyoflaw.org/Purpose/PurposeLaw.pdf
NMK: Well, no means is 100% reliable, so some level of redundancy is always welcome.
For instance in libertarianism, the free market provide competition between providers and prohibits monopolies. This mechanism foster improvement in quality and the lowering of prices. If we were to rely on a few reliable providers, chance are the price for their service would go up or stay the same and quality of their products or services would go down.
The free market allows anyone who think they may have some solution to some problem to try to market it to people to make money. This mechanism distributes risks for bad ideas and allows good ideas (those that provide solutions to problems) to spread ( assuming a free information flow and no media monopolies like we have now).
Also for those things that rarely break down, when they do their availability often goes to zero percent so any other option would be better.
Libertarianism (free market capitalism), because of the variety it creates through the free market, would also provide us with the best chance for humanity were an asteroid were to threaten the planet or if some deadly virus were to appear.
NMK: Well, if you absolutely need to be in Chicago for 7am tommorow and bad luck makes it so that there’s an earthquake, a flood, your car don’t start, the taxi are in strike, etc, then having many different ways of getting there on time maximize your chance of getting there. If for instance you had to be there for a life saving medical treatment that couldn’t wait or to meet your future wife then that might have saved your life or given you a great wife.
NMK: Well it’s not only about money but also about what products and services are available on the market. For instance, a king in the 16th century may have been rich in term of money but he still didn’t have a working toilet, an iPhone, a fridge or a car and the like. Now even many of the poorest people even have those stuff, in a way, the “poor” of today are many orders of magnitude richer than the kings of an hundred years ago.
Fiction author Neal Stephenson has this quote that goes “the future is here, it’s just that it’s not equally distributed.”
The poor of today are way better able to control for most important things (health, leisure, effort, security, etc) than the Kings of yesterday. The rich of today are a bit like the poor of today compared to the Kings of yesterday, they may be better able to control for certain things because they have more money like for instance have access to better medical care but because that those rich can afford such expensive care, people in the future will be able to have access to those care much cheaper because the rich were able to pay for the business of this kind of care to start.
···
On Wed, Apr 15, 2015 at 2:35 PM, Nicolas M. Kirchberger oberon.nmk@gmail.com wrote:
NK: The law of requisite variety explains why libertarianism is the best system to allow people to maximize their perception control abilities.
RM: Could you explain the law of requisite variety in terms of a simple control task, like the tracking task. The law of requisite variety is not a concept that is part of PCT or control theory, for that matter. It would be nice if you could explain the law in terms of the variables involved in control. I presume the term “variety” refers to the range of different lvalues of some variable in the loop; is that right? And if so, which variable? And what is the variety “requisite” for?
RM: And also, could you explain what the libertarian “system” is?
NK: The goal of libertarianism is to expand freedom maximally for all.
RM: What is “freedom”? How do you measure it in order to determine how much of it there is (whether it is maximal or minimal)
NK: For instance, if for a particular problem a person must meet with another in Chicago at 7am the next morning and the person has the choice to go to the other city with his car, by train, by plane, by taxi, by commuting with another, etc, the person has more chance to be able to meet his/her goal of being there by 7am and can better manage adverse events that may prevent him or her to be there on time. If the person has only two choice then he/she is more exposed to control failure than if he/she has more option.
RM: So the libertarian system produces more alternative means of achieving a goal. How does it do that? And why is having many means available better than making one means highly reliable? There is a need for many means only if there is a high likelihood of many of the means becoming unavailable with considerable regularity.
NK: Thus libertarianism by maximizing options people can choose from maximize and ease people’s ability to reach their goals, manage disturbances and avoid control failure.
RM: Again, why is maximizing options better than making a small number of options highly reliable (as they are now in your transportation example)? The only disturbances that would require many options are disturbances which rather regularly take out all the options but one.
RM: And, again, assuming that having many options really is a good thing how does the libertarian system create all these options while other systems don’t? Your answer should take into account the fact that the options are actually “available” only if a person can afford all of them. So part of making all these options available to people means also making it so that all people can easily afford the options. So the libertarian system will allow everyone to control better by providing more options (however it does that) if it also makes it so that everyone can afford to take the options that (due to disturbance) are required to achieve all their goals.
RM: So it seems like one of the most important things the libertarian system must do to make it so that everyone can control better is provide everyone with enough money so that they can afford to use any of the options necessary to control the variables they want (and need) to control, given prevailing circumstances (disturbances). If the libertarian system leaves some people without enough money then these people are actually deprived of the ability to control, no matter how many options are out there.