On Wed, Mar 19, 2025 at 7:56 AM Alan Grayson <[email protected]> wrote:
> *assuming an infinite spatial universe and that it gets very very small > as we run the clock backward, the observable regions shrinks, but what > happens to the unobservable region?* *It makes no difference if it's infinite or finite, if inflation is correct then if you go back to just after inflation stopped then things that are unobservable now would have been unobservable then, but if you go back before inflation started everything would've been observable, that's why the temperature of the Cosmic Background Radiation is at the same 2.7° kelvin temperature even for spots in the sky that are 180° away from each other; without inflation there was never enough time for light to go from one of those spots to the other, they were just too far from each other, but with inflation at one time those two distant spots were in causal contact with each other and the temperature could have evened out. * *John K Clark See what's on my new list at Extropolis <https://groups.google.com/g/extropolis>* ktb -- 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/CAJPayv2FxDfjRO-dw_%2BQC8PgJeAHS9jBUQYr3myjUvA-j_dnGg%40mail.gmail.com.
