The Case for a Small Universe

Astronomers don't know if the Universe is finite or infinite. Whatever the case, it's larger than the Observable Universe, which measures 93 billion light-years across. A new paper proposes that the actual Universe is comparatively tiny, not much bigger than its observed size - just a few orders of magnitude larger. A smaller Universe solves some problems with other theories of cosmology, including inflation and the amount of dark energy in the Universe.

#cosmology

http://arxiv.org/abs/2309.03272

https://m.universetoday.com/system/media_attachments/files/111/030/774/162/678/233/original/3ccac2d580f77c03.jpg 

 @6a30a78d Swampland conjectures? The Dark Dimension Scenario? Whatever cosmology’s smoking, send 50g my way… 

 @6a30a78d 

Hmmm.  Small as in eventually curves back on itself?  Or as in some kind of edge?  In either case, the temptation is then to ask what lies outside the curve or beyond the edge?  It seems like all cosmological answers are eventually absurd.