We are surrounded by order that-until now-physics has been unable to explain. The spread of veins in the back of our hands mirrors the spread of branches on a tree; fern fronds bear a resemblance to the outline of fjords; the best-loved classical music echoes the patterns of our heartbeats. The theory of Universality is using fractal patterns to explain much of the world around us. Could it be that the same laws that govern systems in their critical...