It has been explained to me that “Space” is finite essentially because we can measure things, distance, size, speed of light, ect. Therefore, if “Space” is finite then everything else is finite.
I understand that if you have an infinite number of stars in a finite space then there would be light everywhere for example. I don’t understand why the same would be true if the universe were also infinite. Would that not sort of cancel out the infinite nature of any one object as it would have infinite space to be in.
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There’s a large, but finite number of stars that we can see. The problem is that we can’t see past a certain distance, it’s literally a horizon called the “[observable universe](https://en.wikipedia.org/wiki/Observable_universe)” and we can’t see past it.
Otherwise, the laws of physics don’t indicate or even hint at some sort of “edge” or “end” of the universe, and what we can see is “the same” in all directions, so logically the universe should be infinite.
Or it could be finite, if there’s only a certain amount of matter that makes it up.
> Would that not sort of cancel out the infinite nature of any one object as it would have infinite space to be in.
Trouble with infinities is, [some are bigger, some are smaller](https://en.wikipedia.org/wiki/Aleph_number), they basically have cardinalities and you can’t fit the bigger ones into the smaller ones. They don’t always “cancel each other out” as in a 1:1 match.
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