We propose a specular universe framework — the Biverso — in which our observable universe and a topologically paired counterpart are coupled through black hole / white hole duality. Extends the dark matter production framework of Vivino (2026) into a full cosmological model with ten falsifiable predictions (P1–P10). Key results: ΩDM = e/10 as dynamical fixed point, exponent 3. 42 from ΩH·Vₑrgo, DM mass ~3. 8 GeV, sigma8 tension explanation, two-component BH mechanism. Related publication: DOI 10. 5281/zenodo. 20097344.
Bruno Vivino (Thu,) studied this question.