Informational Closure in the Human and the Machine:

Art by Dall-E

One of the concepts that seems hard to grasp with regards to Cybernetics is the idea of “informational closure”. This idea was introduced by Ross Ashby as “informational tightness”. Ashby defined Cybernetics as the study of systems that are open to energy but closed to information and control – systems that are “information-tight”. Just like something that is described as water-tight, where water does not enter it from outside, information-tight refers to the condition where information does not enter it from outside.

Ashby also said that when a machine breaks, it changes its mind. Ashby referred to “machine” as a collection of parts that interact on one another and an “organization” as the specific way they are put together. For example, when a user pushes on a button, a door opens. The machine in this case is the button together with the wiring that can interact on the door together with the hinges. Ashby would say that Cybernetics in this case is the study of all possible actions that could have happened when the button was pushed, but did not. The cybernetician would ask why of all the possibilities, the action of the door opening happened? That specific action happened due to the specific manner the parts are connected to one another. If the parts were connected differently something else would have happened such as the door staying closed and refusing to open. I use the phrase “refusing to open” to tease the idea of the machine having a mind. As a nod to Descartes, in the case of this machine, its mind is indeed its body. It acts the way it does because of its structure. If there was a loose connection, then the machine would indeed change its mind, and refuse to open.

Here, the reader might be tempted to say that the user is providing an input or information via the press of the button. From a cybernetics standpoint, the user is actually perturbing the machine, and the machine’s behavior to this perturbation is to behave in a specific manner as dictated by its internal structure and organization. This is the reason why if there was a loose connection, the user pressing the button would result in a different behavior altogether. There is no information being received that is processed by the machine. The user could use the same pressing action on a keyboard and it would elicit an entirely different behavior, one that is consistent with the keyboard’s internal structure and organization. The machine’s mind is already made up, so to speak. If one were forced to define information in this regard, it would be something to the effect of “information is that which has the potential to elicit a response.” But here is the catch, what elicits a response is not the information, but the internal structure of the machine. In order to respond, the machine must have a closed organization. Information tight or informational closure means that the machine does not process information from outside. Instead, it is perturbed and this elicits a response based on its internal structure.

Two Chilean cyberneticians Humberto Maturana and Francesco Varela came up with the idea of autopoiesis that brought a new dimension to this. Their perspective is that humans are informationally closed as well. Maturana pointed out that prior to 1950’s, scientists and laypeople used to talk about neurons transferring or transmitting impulses. And after the advent of information theory by Claude Shannon and Warren Weaver, everything was viewed in a new light – that of information and entropy. The idea of conveying information from one person to the other, and information being processed is an attractive one. From a practical standpoint, one can see that this does not make sense. How many times have you conveyed information to another person only to have been misunderstood? As George Bernard Shaw once said, “The single biggest problem with communication is the illusion that it has taken place.”

We are obviously different than machines. We are not wired in order to be to elicited for specific responses. How we respond instead is based on a historical coherence. An easy example is how one responds to their own name. When we were infants, we were called our names, and we did not respond based on our then closed organization. With each repetition, we came to correlate the sound of the name to a response from us guided by reinforcement in the form of attention, love etc. The utterance of our name created a strong correlation in our behavior. There can still be instances where we may behave differently if our names are called such as in the case when your mother was using a stern voice. The history of interactions with others creates a stable response that we generally tend towards to. The more perturbations we have in the form of these interactions, the more we tend to respond in a particular manner. We have an embodied mind, unlike the machine. And unlike the machine, we are autonomous entities. We may still choose to change our mind for no good reason.

One of the examples that Maturana gave to further this idea is that of looking at a flower. The traditional way is to say that the light from the flower reaches our retina and this acts as information, and we see the flower. The informationally closed way is explained by Maturana as follows:

When light reflected by an object that the observer describes as external reaches the retina, an activity is initiated that is enclosed in the structure of the retina itself (and not in the structure of the source of light, nor in the structure of the world). The external world can only trigger such changes in the nervous system of an organism as are determined by the structure of the nervous system itself. The consequence is that there is no possible way, in principle, for the external world to communicate itself in its primordial, true form to the nervous system.

In other words, the flower does not inform the nervous system that it is a flower. Instead, the nervous system constructs an experiential reality of “flower” based on its own structure. It should refer to itself in order to make sense. This aligns with the view that each of us uniquely experience the world. What the color blue is? or what the sound of a hand clap is? – are all different for each of us, and this is based on our history of interactions and our closed interpretative framework. This brings attention to the essential point that what we experience is only one version of a human reality. To exist in a social realm requires us to be respectful of the other participants.

Stay safe and always keep on learning…

In case you missed it, my last post was On the Ambiguities in Complexity:


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7 thoughts on “Informational Closure in the Human and the Machine:

  1. The very concept of “information” is hard to grap. “Information”, following Bateson, is an explanatory concept. We use these words to explain something that happens. See your examples.

    We use these concepts as if they were true, as-if (true). Things – as it were true – which are true in there consequences (for instance in a “communication theory”), are considered true. Because their consequence are true. They’re useful concepts, because they work.

    Nobody questioning “information”, so we keep treating it “as it were true”. (In Dutch: “als het ware”, with us “waar” can mean “where” and “true”). We act as-if information actually exists. For instance our prime minister – amongst others – excuses himself saying: “I didn’t have that information at that time”. Of course (t)he(y) didn’t. Information doesn’t exist.

    This is why “systems” (another explanatory principle) are “informational closed”. One doesn’t need the concept of information to explain their behaviour.

    I’m not saying we shouldn’t use explanatory concept like “information”, or “system” (or, my favourite, “time”). They’s like the scafoldings in our thinking. We invent them to deal with reality (“The Invented Reality”). And when they work, we can discard them. In the end result – oping a door, the motion of a machine, the behaviour of a dog, …. – they don’t show up.

    There’s no time inside a watch, nor information in a computer; or in a human being.

    Real concepts – concepts invented with which we realize actual results (aka reality)- are actually always paradoxical.

    Real objects, having an actual place in space – like a chair – are never paradoxical. The concept of a chair however, – the idea- leads to paradox. Because you cannot sit on the concept, the design, the idea, of a chair.

    How do we know a stoel, Stuhl, chaisse, chair, … is a chair? Not because there’s a common subconscious “field’, or an “archetypical” chair or an abstract “idea”. Because we can use it as a chair.

    The confusion arises from another explanatory principle: “metaphors”, figures of speach (I invented this combination of speak and speech as an explanatory concept). When using language we treat figures of speech as-if they’re literally true. Some times we add the attribute literally to a metaphor, to stress the literally use of the metaphor.

    We use words as-if they contain meaning, as-if communication takes place (note the metaphor of using “taking place”, as-if communication is an object in space. All our metaphors are based on using our body in space). As though information “exists” out-there.

    The explanation for using words as-if truly true is two fold. For one thing, it leads to real (or true) results. The concepts of physics (“time”, “space”, “energy”, “”gravity”, “entropy” … ) enables us to fly to the moon. This doesn’t make concepts like time, energy or entropy are “real”. In fact, the very use of them by Shannon proves they’re very handy concepts. Like scaffolding to build house, churches and universities. Auxiliary structures.

    The other thing – so to say, because it’s not a thing – is, we cannot have doctrines without “true words”. Every church (I do think everybody is religious), group or (political) party is based on the implicit rule that words are literally true. That “you say what you do and that you’re doing what you’re saying”. One cannot.

    We use religious, political, social, economical, conceptual …. concepts to explain what happens and when the concepts are useful, which they are, for the time being, we act as-if they’re true and “realise” them. The pay-off being, that we can tell who belongs to use and them. e can hear this.

    I nowadays use the concepts of “metaphor-in-use” and “metaphor-espoused”. The first is analogue to behaviour or behaving itself. It’s what happens in the here-and-now. Like Watzlawick’s “all behaviour is communication and all communication is behaviour”.

    How do we know the difference? Communication is about behaviour, behaviour transferring behaviour.The very Greek word meta (over) phore to (carry). The metaphor-in-use exists before any use of spoken language.

    The latter are the words spoken. And because words belong to a language, and people use language to invent themselves groups, culture, nations,… also expresses one’s belonging to a language group. The meaning of words follows from the correct use as prescribed (!) by the group.

    The discussion about “gender”gives an excellent example of the confusion arising taking a letter literally. Does crossing a m make me into a f (v in Dutch)?

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