On Monday, September 16, 2024 at 8:01:30 AM UTC-6 Alan Grayson wrote:
On Monday, September 16, 2024 at 6:11:05 AM UTC-6 John Clark wrote: On Mon, Sep 16, 2024 at 6:58 AM Alan Grayson <[email protected]> wrote: *> If Flat implies infinite in spatial extent, it can't be realized instantaneously at T = 0 (a type of singularity IMO). AG* *Regardless of if the universe is infinite or finite or flat or curved, we know that our current physics cannot tell us what things were like at T=0, and we will never know until we resolve the discrepancy between our best theory of gravity, General Relativity, and our best theory of the other three forces of nature, Quantum Mechanics. Both theories have been tested with incredibly precise experiments and both theories have passed with flying colors. Physicists have been trying for nearly a century to find a way to get those two very successful theories to play nice together, but so far no luck.* This issue has nothing to do with a possible unifying theory at t = 0, but what an infinite universe in spatial extent implies; namely, no big bang, since that would require creating infinite spatial extent instantaneously (a condition I associate with a type of singularity). AG Another way to look at it is this; if the universe was finite in spatial extent when the BB occurred, it will always remain finite, but if it was infinite in spatial extent when the BB "occurred", it was always infinite and the BB didn't occur. 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 on the web visit https://groups.google.com/d/msgid/everything-list/632955dd-6da8-49aa-8edb-b2755bf24effn%40googlegroups.com.
