GXWT t1_ja7z0fq wrote on February 27, 2023 at 2:59 PM

Reply to comment by ferrel_hadley in How big was the point of dense energy before the Big Bang? by ClassicSpurzy

I ask out of curiosity, but what evidence points to this 160x figure?

ferrel_hadley t1_ja80mn2 wrote on February 27, 2023 at 3:10 PM

Curvature. We cannot see any in the observations we have and that places a lower bound on the size of a closed Universe, we would be able to detect curvature if it were smaller.

Toebean_Farmer t1_ja8eupq wrote on February 27, 2023 at 4:46 PM

Unless it was flat, which many cosmologists believe it is.