In this case you literally gave a better example “class”, that said in cosmology there is only one universe ours. The multiverse and other theories of multiple

In this case you literally gave a better example “class”, that said in cosmology there is only one universe ours. The multiverse and other theories of multiple universes nominally belong to other fields of study. Cosmology is the study of the universe we live in, specifically it’s development. That’s why we have terms such as the local/near by universe and the observable universe. I find odd that none that that seem to take offense with the former mentions the latter, since grammatically they are identical.