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How big is the universe compared to the observable universe?

Answer 1

Owen Atkinson

We don't know. No one knows.

We don't even know the size of the universe because we can only observe what is observable.

Since we don't even know the size of the universe, how are we meant to make comparisons?

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Answer 2

Clara Avalos

It is estimated that the observable universe has a diameter of roughly 93 billion light-years. The size of the universe beyond the observable universe may be infinite or significantly larger.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.