(February 23, 2018 at 6:57 pm)polymath257 Wrote: In the standard BB description, there are no 'outer limits'. The universe is always spatially homogeneous: the same in all directions. Even if space is finite in extent, there are no boundaries in the way you seem to be asking.
This..
Though I can how understand someone with a passing familiarity with cosmology might misunderstand what the observational evidence tells us.