Ultimate physical origin of ΛCDM cosmology
Ascertain the physical mechanism underlying the initial singularity and the origin of ΛCDM cosmology in the absence of a complete quantum gravity theory, including how the Universe’s mass-energy content emerges at t=0 consistent with conservation laws and subsequent Friedmann evolution.
References
Moreover, the ideas presented in this paper are not any more presumptuous standard $\Lambda$CDM, which predicates on the temporal singularity of the Big Bang as the moment of creation, so one must also acknowledge that the ultimate physical origin of $\Lambda$CDM cosmology is, ahead of the availability of a robust quantum gravity theory, likewise unknown.
— Are dark matter and dark energy omnipresent?
(2503.08733 - Lieu, 11 Mar 2025) in Conclusion