"Before the big bang, scientists believe, the entire vastness of the observable universe, including all of its matter and radiation, was compressed into a hot, dense mass just a few millimeters across." Isn't this describing what the singularity of a black hole is? Black holes spin extremely fast, close to the speed of light which causes torsion. According to Dr. Poplawski, "This torsion is not just small and heavy; it's also twisted and compressed. This can suddenly unspring with a bang. Make that the Big Bang (or the Big Bounce)". So could our universe be nestled inside of a black hole? If so, is the black hole inside another universe?