NASA photographed a rectangular iceberg puttering around off the coast of Antarctica. Kelly Brunt, a glaciologist with Nasa and the University of Maryland, said the process of formation was a bit like a fingernail growing too long and cracking off at the end. They were often geometrically-shaped as a result, she said. "What makes this one a bit unusual is that it looks almost like a square," she added. The point of the postmodern notion of hyperreality is not that reality is a simulation.