TFNR - The Principle of Action and Reaction
The principle of Action and Reaction represents the specification of the Principle of Propagation at the most elementary Level of Physical Reality.
The Principle of Propagation
This Principle states that the mutations described by the Principle of Variation—the incessant variations of the dynamic condition of Entities, the Events—always tend to propagate.
Any variation of a Field produced by a Force (Event) tends to propagate within the same Field, spatially and temporally, transmitting the Action of those Forces through the Field, propagating Causes and Causality via Action.
The propagation of Causes and Forces is represented by the extension in Space-time of the effects of the Action produced by those Causes/Forces. Any variation of a Field produced by a Force tends to propagate spatially (and thus conserve itself in time), transmitting the Action of those Forces—the Events—through the Fields, propagating Causality through the propagation of Variationality.
The general Principle of Propagation is the foundation of all derived principles of propagation operating at the various Levels of Reality. It is the primary and fundamental expression of Variationality, in the mode we call Spatiality.
At the level of the Elementary Field operates the Principle of Action and Reaction; at the level of Physical Structures of Information the principle of propagation of Information applies, realized for example through the mechanism of "emission and absorption" of photons/e.m. waves.
On a biological level this principle governs the propagation of genetic information mediated by gametes, while on a cognitive level it manifests in the field of communication between individuals, in the various Phenomena related to expression through languages, etc.
The principle of Action and Reaction
As said, this principle is the specification at the most elementary level of Physical Reality of the more general Principle of Propagation (mutations described by the Principle of Variation—the incessant variations of the dinamic conditions of the Entities, the Events—always tend to propagate).
The Principle of Action and Reaction describes the formation of "translational reactions" (Translation), produced by interactions among micro-gradients and aimed at restoring homogeneity, or isotropy, in the pre-temporal distribution of sub-elementary pre-spatial fluctuations.
In common physics, this principle is embodied by Newton's third law, which states that when two bodies interact, they apply forces to one another that are equal in magnitude and opposite in direction. More generally, we can say that "to every action there is always opposed an equal reaction". In mechanics, the force that produces the reaction is not "caused" by the force that produces the Action. Both forces act simultaneously, without causing each other.
In summary, in this model, the principle of Action and Reaction manifests wherever a Source produces Action, wherever a Force expresses Action upon a Field and the Field reacts by producing a counter‑Force that opposes the first and, in turn, generates Action that we call re‑Action. The principle manifests wherever a Cause produces effects. These effects will in turn become Causes. The Principle tells us that the Action manifested by a Field (variation, deformation) as a consequence of the Action expressed by a Force always produces (re‑)Action (the conserving Action). This re‑Action manifests in the Mode / Component that we here call Translation. Stated in the terms of the Dynamics of Elementary Action, the elementary pre‑spatial fluctuations and their pre‑temporal distributions at the level of each event‑point produce a reaction: a variation in the temporal prevalence in the orientation of the pre‑spatial fluctuations of adjacent event‑points, tending toward the restoration of dynamic homogeneity.
Links to the tables of contents of TFNR Paper