Dark flow suggests we're only one universe in a multiverse, although this is tentative.
Theres more,.but for now,.this is also all there is..So its both..It might matter...I guess if it matters to you,.then it matters..but overall its like matter itself..Here one minute--gone the next.
It doesn't matter, if there are other universes they're probably wondering the same things we are. Like some sort of parallel universe where we're all the same but do things different? =