The resolution of an electron/positron pairing in an exponential background establishes a light cones capacitance through the deviation from original trajectory required to annihilate.
The energy dispersal from the annihilation disperses as a proton/antiproton pairing which deviates to self annihilation establishing light cone maximum velocity/c.
Light cone has developed cascade depth.
Electron/positron cascade occurs within the established light cone. High heat annihilations within the initial period of this cascade extends the light cone until there is approximate space to allow a proton/antiproton cascade to find a path in the direction of light cone expansion. This establishes an infant EM opposition within the growing light cone.
Establishing opposition of dispersal within the light cone allows a depth of light cone expansion to be stabilised that allows a stable hydrogen cascade to proliferate at the centre of the light cones momentum. This establishes vacuum confinement.
A stable hydrogen cascade provides further depth to the growing light cone allowing a cascade of helium to develop with proximal velocity to the hydrogen cascade providing centre of momentum to the expansion of the light cone. Establishment of a helium cascade relative to the centre of momentum of the direction of travel of the expansion of the light cone establishes the vacuum coherence of the now definable universe light cone.