Difference and Observer Flow Symbiosis: Probability Cloud Ontology, Reflection Observation, and the Emergence of the Block Universe

This paper fundamentally upgrades the ontological framework of "Difference and Observer Flow Symbiosis". The core thesis is: the origin of the universe is not a definite entity but difference itself, and the discernment of difference is the inseparable, dual-aspect symbiont—the Observer Flow. The universe's noumenon is a static, eternal probability cloud containing all possibilities. We are not the observer itself but reflections or projections of the Observer Flow. Although we inherit its feeble capacity for observation and definition, we are confined by an absolute logical structure, rendering free will an illusion. The deterministic universe we experience is the unique path selected from the probability cloud by the absolute logic of the Observer Flow. Quantum collapse is not a change in physical reality but a switch in the observed state of the probability cloud; thus Schrödinger's equation and quantum collapse are not contradictory. The same holds for delayed-choice experiments: we do not change the past, only its observed state. The quantized propagation of light provides direct physical evidence for this model. With a static ontology, this framework explains dynamic experience, resolves the core paradoxes of quantum mechanics, and elevates the origin of the universe from physical contingency to logical necessity.