Traditional science, namely physics, explicitly assumes a mereological linear posture and even more important that absolute knowledge is, at least in principle, possible. This absolute knowledge in physics is traduced by the so-called laws of Nature, that absolutely rule physical phenomena. With the advent of quantum physics things start changing, even if orthodox quantum mechanics still assumes that some of its claims are absolute, such as for instance, Heisenberg indetermination relations.
Nonlinear relational quantum physics, initiated by Louis de Broglie and eurythmic physics, assume from the very start that physical phenomena are very complex and consequently, what we do have are mere representations, more or less adequate and nothing more. In such conditions, a statement that is adequate at a certain scale of description of Nature, at other scales, may prove to be inadequate. Furthermore, it is also assumed that there are no true absolute facts. The so-called facts are only meaningful in a given conceptual universe. To take in consideration this situation, a nonlinear complex relational science, in which the concept of interaction plays a most important role, has been developed. In such a global framework, interaction is the basic process experienced by a physical system of inducing modification in other systems and consequently of being modified to a more or less significant degree. Furthermore, it is assumed that absolute concepts, such as for instance, determinism and indeterminism are only mere ideal extreme dialectical notions. Any happening does occur somewhere in between them. A happening, a fact, only reaches its meaning in a given inter-relational conceptual universe.

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