From the website at the end of the link in the OP, I read: "an outward progressing spherical 'shell' chain reaction process that converts primordial matter made of the most elementary of particles (positroniums) into high energy gamma rays."

What is the rate of progress of this "spherical 'shell' chain reaction process" today? Or, if this question is nonsensical, in which epoch of the universe's history would such a question have made sense?

What is the relationship between "positroniums" and quarks, leptons, neutrinos, and the force carrying bosons?

What is the energy range of the "high energy gamma rays" that "positroniums" are converted into?