I recently came across this claim:(adsbygoogle = window.adsbygoogle || []).push({});

"On the other hand, in certain cases even an expanding cosmology may have 0 average expansion, due to the fact that we are averaging over an infinite amount of time. "

Is this correct? can someone explain how averaging over infinity time leads to zero ?

http://www.wall.org/~aron/blog/did-the-universe-begin-iii-bgv-theorem/

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# Averaging the Hubble paramter

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