On Monday, January 13, 2020 at 11:20:41 AM UTC-7, Brent wrote: > > > > On 1/13/2020 2:21 AM, Alan Grayson wrote: > > *Forget about matter. I am discussing spatial extent. If it starts small, > and expands at any rate less than infinite, its spatial extent cannot be > infinite. AG * > > > But so what? What is "it"? and what are you worried about? If "it" is > some portion of the universe we can see, it's finite. The inference that > the universe is infinite is based on curvature measure in the part we can > see. >
*IT, the universe, has (IMO) a very small but positive curvature, which is what we measure. Since we can't precisely measure zero curvature, as JC earlier stated, there's no way to distinguish the two cases -- flat and infinite in spatial extent versus spherical and finite in spatial extent -- on measurements. But since flat and infinite at the instant of the BB implies a singularity, I reject that model. AG * > It doesn't prove the universe is infinite...proof is for > mathematicians...but it makes it the way to bet. > > Brent > -- 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 everything-list+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/everything-list/9fd8d454-3711-4ce1-8324-18619f52003f%40googlegroups.com.
