RE: Brace yourselves for gravitational waves
February 13, 2016 at 10:34 am
(This post was last modified: February 13, 2016 at 10:36 am by Alex K.)
There is a well defined notion of the spatial extent of the universe, and it is either finite or not. It could however be finite in one direction and infinite in another... All we know right now is that if it is finite, it appears to be bigger than the visible universe (otherwise it would show signatures in the CMB). If there was cosmic inflation, it is likely at least many many orders of magnitude bigger than the observable patch.
The fool hath said in his heart, There is a God. They are corrupt, they have done abominable works, there is none that doeth good.
Psalm 14, KJV revised edition