Causal overlap and self-reference: a brief summary

The purpose of this text is to present a summary of the theory of self-reference as a result of the superposition of the causal history of a system. Self-reference is discussed here as an effect of the association between memory and causality. When considering the eventual situation of a physical system, different previous alternatives can take it to the same state. The means that constituted it are not intrinsic to it, there are no elements in it to retroact to its previous state. In a system of causal superposition, however, the state contains the history of the states that constituted it.