Time as a Quantum Memory

We propose a speculative framework in which both matter and spacetime emerge from aPresentist ontology, where only the current instant exists. We model the Present as an ontologicalquantum memory that evolves in discrete instants and encodes entanglement in a fuzzy Euclideanspace. We introduce an elementary massive particle as the fundamental observer, whose quantumspin is linked to an entanglement across instants. This entanglement is modelled in a time-symmetricformalism through elementary closed loops and is related to the particle’s experience of the passageof time. We postulate a holographic bound on the entanglement information accessible within theobserver’s causal cone. From this postulate, we derive the emergence of relativistic proper time as asubsampling of the global sequence of instants, thereby reconciling Presentism with SpecialRelativity, key result of this contribution. We conclude highlighting potential connections with otherquantum gravity approaches and with a brief outlook on open questions and possible experimentalavenues to test the framework.