You sit back, hit spin, and watch the reels roll. There’s excitement, suspense, maybe even a little superstition. But behind every spin in real cash slots, there’s cold, hard math. Behind the curtain ...

All complex correlated systems, from Arctic melt ponds to the Internet, appear to be governed by the same math as a random matrix. In 1999, while sitting at a bus stop in Cuernavaca, Mexico, a Czech ...