Assertion: universe | /r/HasAspect | nontrivial topology
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Source sentences:
text: In 2003, Cornish et al. found this lower bound for the diameter of the whole universe (not just the observable part), postulating that the universe is finite in size due to it having a nontrivial topology, with this lower bound based on the estimated current distance between points that we can see on opposite sides of the cosmic microwave background radiation (CMBR).