Not only social or exclusively human existence is filled with the various types of bounds, transgressing which gives birth to various types of aggression. The structure of all reality is built just on various bounds, separating every thing and every mode of existence from all the rest ones. In some sense, the bound itself makes of every thing what the latter is by itself, being the embodiment of the difference, differentiation from the rest objects. In the most general sense, the aggression can have also a cosmic, universal dimension, showing through the violent interference of one into another. There is abundant example of aggression in the animal and vegetable kingdoms, in which the existence of a species or an individual is often sustained by doing violence to others, that makes the continuous round of transformations, assimilation and adaptations of Universe's environment and of beings, inhabiting it.
Consequently, the aggression is something general, universal, and integral to the basis of the reality itself.

In modern physics, primarily exploring “very unbalanced conditions” and chaotic systems, there is a technical term - “Lyapunov time.” It designates a period, when a certain process (physical, mechanical, quantum, or even biological) moves beyond the bounds of precise (or probabalistic) predictability and enters a chaotic mode. In other words, the tajectory of the process is subordinate to strict laws only up to a certain moment in real time. Beyond this moment, “normal” time ends and paradoxical “Lyapunov time” (or, more precisely, “positive Lyapunov time”) takes over. The characteristics of this “time” are very curious. Unlike usual physico-mechanical time, which is regarded in classical physics as an essentialy reversible quantity (this means that time is nothing else but a static axis, adding a fouth dimension to three-dimensional space; refer to the educational Einstein model), “Lyapunov time” flows irreversibly, only in one direction, and, consequently, consists not of a once-and-for-all defined trajectory (in four-dimensional space), but of “events,” completely unpredicatable movements, which are arbitrary, accidental, irregular. Processes that occur during “Lyapunov time,” are called chaotic in contrast to processes in classical mechanics.