Static–Dynamic Dichotomy
In general terms, this dichotomy refers to orientation towards either space (Static) or time (Dynamic). The categories of space and time are vital a priori concepts studied in detail by Immanuel Kant in "Critique of Pure Reason", contrasting them as extent and duration.
Statics depend more on space, Dynamics more on time. Filling space with objects characterizes Static behavior, whereas Dynamics saturate time with events. Statics cannot stand empty space—they immediately fill it with available items on hand. Dynamics cannot stand empty time—boredom, stagnation, prolonged states of the same condition. In a certain sense, Statics can be called people of place, Dynamics people of time.
Now consider this dichotomy on the individual levels of communication.
Intellectual Level
Statics tend towards fragmentary-analytic thinking; Dynamics tend towards associative-synthetic thinking.
Analysis, as defined by most sources, is the division of a whole into clearly delimited parts. Analytical work is meant to delineate boundaries. Whereas synthesis is akin to associativity, i.e. the association of two or more concepts by fuzzy, rapid connections whereby one occurrence immediately evokes others to mind. Resulting in a coherent synthetic image with blurred internal boundaries.
The epitomization of Dynamic cognition formed the explanatory basis for the nature of mental processes in the theory of associationism. Aristotle first advanced the idea that spontaneous mental images can converge so closely together that the similarity or contrast of multiple associations emerges on the basis of contiguity. Later John Locke argued that ideas of any degree of complexity emerge from the process of associating simple sensations. In this case he contrasted the association of ideas against purely semantic connections, which in his opinion were secondary.
Indeed, eidetic mnemonic techniques showed that with aid of visual association, it is possible to connect anything in the mind. Here are some of the eidetic memory techniques originating in antiquity.
Roman orator Cicero used the 'method of loci' to memorize his speeches by heart. He mentally laid out information in the corners of a room, mentally returning to one corner or another to extract as required. Medieval Dominican monks studying rhetoric used the same method. They took a road familiar to them to the last detail and mentally walked down it, successively laying out along the road statements which would be presented before the audience. While speaking, they would mentally walk the route, 'raising' key concepts they had previously laid there.
Contemporary advertising cleverly exploits the Dynamic side of human cognition. It is mainly based on the mechanism of association by context (manly cowboy next to a pack of cigarettes) or contrast (ordinary laundry detergent vs. advertised laundry detergent). Judging by this means of consumer inducement, advertising presumably influences Statics much less than Dynamics. Statics memorize more effectively when material is structured in rigid semantic relationships, where each concept is fixed in memory cells like a computer.
Thus, Dynamics are stronger in synthesis operations (not mere simple connections, but confluence of associations), while Statics are stronger in analysis (not just any separation, but clear and precise delineations). Thus, the discrete/continuous pairing has more to do with the Static–Dynamic dichotomy, than with otherwise customary Rationality/Irrationality. But then, what exactly is the latter? Irrationality indicates situationality (predominance of context over aim), while Rationality indicates regularity (predominance of aim over context).
Social Level
Differences between Dynamic and Static types at this level corresponds to the contrast between initiators and finalizers.
Dynamics are stronger at the beginning of any activity: they easily move and quickly enter the realm of nominal activity. Rapid transitions from a previous state into a new process of change itself—this is their customary life. Statics better sustain and continue what has already begun—that which is already in motion. They must be preliminarily excited.
However, in the Dynamic is a process of continuous readjustment of focus and 'drift' of purposes. Because of this, the priorities of Dynamics are volatile and poor in hierarchical coordination. One wish may be quickly replaced by another and it is difficult for them to concentrate on any one specific long-term goal without external support. The strength of Dynamics is not in retaining goals, but in achieving them; they are better tacticians than strategists.
The objectives of Statics are more stable and reliable. They know what they want and are able to maintain long-term focus upon it. They arrange priorities in their life and work, with well-differentiated primary and secondary objectives that are rarely reversed. Statics are more successful strategists than tacticians; they know what to do much better than how to do it.
A predominance of Dynamics in any social group renders it unstable, prone to endless change, and sensitive to external interference. Conversely, if predominated by Statics, then rapid transformations prove to be impossible due to excess psychological inertia, rendering the group stabler but more conservative.
Psychological Level
The Static–Dynamic dichotomy controls the degree of equilibrium in the nervous system. Generally, the nervous system of Statics can be regarded as balanced and Dynamics as unbalanced.
This is tied to variability in the internal state commonly referred to as 'mood'. The mood of Dynamics, even if Rational, can substantially change or fluctuate for seemingly insignificant reasons (from an outside observer POV). The Dynamic wants total freedom but is more dependent on ambient environmental conditions and needs a solid foundation.
Statics possess a relatively autonomous psycho-emotional state; their mood is difficult to spoil, and equally difficult to raise. For Statics, providing reliable support to those psychologically depending on them is a routine situation.
Dynamics often develop a psycho-physiological phenomenon known as 'synaesthesia'—a complex relationship between the sensory modalities that results in confluence between them. Synchronized perception of color, sound, smell, and taste as a single complex gives Dynamics a special vividness in their perception of reality. Sometimes fusion of sensation is developed to such an extent that internal images appear indistinguishable from reality. For Statics, given the discreteness of their mental apparatus, regular synesthesia is usually a rare exception or the result of special training.
Physical Level
At this level, Static–Dynamic manifests as contrasting impulses to biological homeostasis/heterostasis. Homeostasis I understand as constancy and heterostasis as variability of the organism and its surrounding environment.
Dynamics are heterostatically inclined to change their material conditions of life such as wardrobe, home interior, or furniture arrangement, for sake of variety or out of boredom. For Statics this tendency is uncharacteristic. Only with difficulty do they proceed with changes to their home environment to which they have become accustomed. They will do so only when it's easier to yield to circumstantial pressures, than to resist.
As types with variable metabolism, Dynamics can rapidly grow stout, though just as quickly lose weight if they fall into a state of emotional distress. Statics have the opposite problem, of a stabler weight and build: if already seriously fat (or thin), they remain so for longer times. Their bodily metabolism is more invariant.
The same laws apply in relation to other physiological parameters such as temperature, blood pressure, perspiration, etc. For example, the body temperature of Dynamics may fluctuate during the day even with no overt symptoms of illness. With sufficient training, Dynamic types can consciously change these parameters in the desired direction.