On Saturday, February 8, 2025 at 5:05:05 PM UTC-7 Alan Grayson wrote:
On Saturday, February 8, 2025 at 4:19:30 PM UTC-7 Brent Meeker wrote: I never conjectured it was originally a black hole. And neither did I claim you conjectured as such. Rather, you asserted that the universe could have begun as spatially infinite (if, as I claimed, it couldn't have become spatially infinite if it has a finite age). AG Models of the origin of the universe, like FLRW, have the nascent universe at extremely high temperature, uniform, and expanding very rapidly, So it must have begun as spatially very small, or perhaps having zero volume? AG Brent I think I am on fairly sound ground to claim the universe began as a BH, referencing the Penrose-Hawking Singularity theorem. "The *Hawking singularity theorem* is based on the Penrose theorem and it is interpreted as a gravitational singularity <https://en.wikipedia.org/wiki/Gravitational_singularity> in the Big Bang <https://en.wikipedia.org/wiki/Big_Bang> situation." https://en.wikipedia.org/wiki/Penrose%E2%80%93Hawking_singularity_theorems AG On 2/8/2025 6:23 AM, Alan Grayson wrote: If we run the clock backward in time, the universe becomes progressively denser as the average distance between galaxies decreases. So if it becomes a BH, it seems highly unlikely it started out infinite in spatial extent, which is what you and Brent conjectured. AG -- You received this message because you are subscribed to the Google Groups "Everything List" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion visit https://groups.google.com/d/msgid/everything-list/5f8ce42a-1a76-4935-bac2-49e7cdf3ab13n%40googlegroups.com.
