“the universe may, in fact, be bigger than this, because the notion of inflation suggests that in the first second of its existence, the space-time in which the universe is embedded expanded much faster than the speed of light. If… — David Christian Copy Share Image
If our local, observable universe is embedded in a larger structure, a multiverse, then there's other places in this larger structure that have denizens in them that call their local environs the universe. And conditions in those other places could… — Sean M. Carroll Copy Share Image