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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The answer is, we just don’t know. When we look out in space, we are also looking back in time. This limits our ability to see if there is more than what we can see, as we can only see back 13.7 billion years. That’s how long light has had to reach us. Anything farther away than 13.7 billion years, we can’t see because it’s light has not had time to reach us. We can make assumptions and predictions, but no one knows the answer.
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