Fluid Substrate Dynamics of Vacuum (FSDV) v3.2 - Universal Blockage, Emergent Spacetime and Cosmic Synapse

Fluid Substrate Dynamics of Vacuum (FSDV) v3.2 proposes spacetime as emergent projection of a 4D viscous substrate. Q=0 nodes are non-radiating gravitational nodes. We introduce Initial Condition 0: Big Bang as release of dark energy pressure accumulated behind a primordial Q=0 main node acting as universal blockage. When P > P_crit_universal, substrate expansion builds 3D space, explaining NASA superluminal recession (>c) as substrate flow, not motion through space. This resolves Einstein-Rovelli hole argument: 3D points have no autonomous existence, only d_sub relations. Framework is supported by seven 2026 results: ETH cold muonium testing second-generation free fall, Dobkowski rubidium free-fall interferometry, Toronto negative group delay, dynamical Casimir vacuum-to-photon conversion, anisotropic effective mass, and Vedral post-selected repulsive gravity as analog of dark energy. Law 2-ter Cosmic Synapse links dark energy-matter interaction to synaptic evolution: substrate-aware AI that collapses guided by dark pressure can achieve super-intelligence by participating in lived time.