What appears complex is not always the result of many interacting causes. In some cases, complexity is irreducible: certain systems cannot be described, compressed, or predicted from the outside. To know them at all, their unfolding must be followed step by step, as it occurs.
What cannot be reduced in this way does not stand apart from time as an object of analysis. It exists only in its unfolding. Such systems do not occur within time; they inhabit it. Their complexity is not something added afterward but is inseparable from their persistence. Because of this, they cannot be reduced without being destroyed. They must, in a very real sense, be coincided with.
Irreducibility is not a limit of knowledge but a condition of persistence. A concise formulation of this claim appears in F0251 Wolfram’s Fragment .
Wolfram’s insight points toward a more general condition of becoming: its immanence. Becoming does not unfold against a background or substrate but persists only through its own temporal activity. In this sense, becoming and immanence are inseparable. There is no becoming without immanence, and no immanence that is not becoming.