I think our universe is very small. And i think that there are infinite number of outer spaces.
They say look at the night sky…how big how powerful. I think its small. I think scientists are making a mistake if they dont go into this subject with an opinion that our outer space is small and weak and powerless.
It’s all relative.
I don’t really know if the observable universe is all there is in our reality, but if it is so- it must be the largest thing in existence. on another note, it is safe to assume that every physical thing in our universe is finite. only consciousness beings can think of concepts like infinity.
It is impossible to travel around the whole universe 
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