(May 11, 2018 at 3:39 pm)surreptitious57 Wrote: The definition of a singularity is a point of infinite density compressed into a space of zero volume. Such a point cannot exist because it would be non physical. Also the singularity as hereby defined is expressly forbidden by Quantum Mechanics. If the singularity did exist it would have to possess infinitesimal dimension and a density less than infinite. Â Mathematically that is expressed as asymptotic which are two lines getting closer to each other that never actually meet and can extend for infinity. In scientific terms this does not mean that time began at the Big Bang rather that the singularity did not experience it happening
The two proponents of the Big Bang theory in 1970 namely Hawking and Penrose have both subsequently disowned it and no physicist nowadays thinks that the Universe came from absolute nothing 13.72 billion years ago. Also it was not actually the beginning of the Universe as such merely local cosmic expansion. And so there is no reason as to why it cannot be temporally infinite with no absolute beginning
Fantastic explanation. Certainly cleared things up for me. Thanks!