There's a remarkable new theory out about the origins of our universe, space and time. Nikodem Poplawski of Indiana University has just presented a paper in which he concludes: "Accordingly, our own Universe may be the interior of a black hole existing in another universe." For the original MIT blog piece go here. For the July 4 abstract go here, which states:
"The Einstein-Cartan-Kibble-Sciama theory of gravity provides a simple scenario in early cosmology which is alternative to standard cosmic inflation and does not require scalar fields. The torsion of spacetime prevents the appearance of the cosmological singularity in the early Universe filled with Dirac particles averaged as a spin fluid. Instead, its expansion starts from a state at which the Universe has a minimum but finite radius. We show that the dynamics of the closed Universe immediately after this state naturally solves the flatness and horizon problems in cosmology because of an extremely small and negative torsion density parameter, $\Omega_S\approx -10^{-69}$. This scenario also suggests that the contraction of our Universe preceding the state of minimum radius could correspond to the dynamics of matter inside the event horizon of a newly formed black hole existing in another universe."
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