the universe isn't a space... when they say the universe is expanding, they are saying that everything is rippling out.
everything is contained in nothing, i have no trouble understanding that at all... it's like being in a vacuum jar minus the jar...
planets and everything else in the cosmos is just a jelly blob that's slowly spreading out, the distance between each individual body increasing.
the universe is a concept, not a pile of dough, if you wanted to measure it, you'd have to draw lines around the most distant points. the only problem would occur if the universe was indeed wrap-around, like a ball...
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In the end we are but wisps
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