Love on the edge of the universe

What about the universe as a whole? Is it infinite or finite, with holes or without? Answering these questions is at the heart of the work. The party line adopted by most cosmologists is that the universe is spatially flat and infinite in extent. The data, mainly from the distortions seen in the cosmic-microwave-background radiation, appear to favour this outcome, although we cannot be sure. Levin, however, appears confident that the universe cannot be infinite, arguing forcefully that infinities simply do not occur in nature, even if they appear in mathematics