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 [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/everything-list/9fd8d454-3711-4ce1-8324-18619f52003f%40googlegroups.com.
