The Universe Isn't as Heavy as Our Calculations Predict

Tony Padilla's new book is called fantastic numbers, a cosmic quest from zero to infinity. In it he explains why the universe doesn't weigh anything like as much as we expect. He says maybe in there lies the answer to the question of whether or not life even exists at all. And that our existence and existence of complex life is very much linked to the fact that we measure a very, very light world.