The origin event in the substrate picture. (1) Before the transition: chaotic dc1 particles with no structure — no speed of light, no Planck’s constant, no gravity. (2) As the expanding substrate cools through T_c, superfluid bubbles nucleate — dc1 particles form vortices at many scales. (3) Bubbles merge and percolate; counter-rotating boundary layers form between co-rotating regions; latent heat drives ~60 e-folds of exponential expansion. (4) The transition completes: a coherent superfluid with modons (photons) propagating at c, organized matter, and all emergent physics activated. This IS inflation — no inflaton field needed.