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Amongst the multitude of mysteries that the universe holds, the answers to what might be the most elusive ones are whether or not is finite or infinite, both in terms of its physical breadth, but also its age: is there a beginning and an end? And for that matter, if it is finite in its physical dimensions, are there other universes that are adjacent to our own? As Einstein famously put it, "Only two things are infinite, the universe and human stupidity, and I’m not sure about the former."

However, Einstein’s tongue-in-cheek quip about the universe have been addressed by two new studies that offer new insight into both the possible physical dimensions of the universe, and the possibility that it may indeed be ageless.
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