Robbert Dijkgraaf, a mathematical physicist and director of the Institute for Advanced Study in Princeton, New Jersey, describes how art school in the Netherlands taught him how to do science. Then he and host Steven Strogatz discuss the matrix model revolution in string theory and why space and time might not be the most fundamental things in the universe. This episode was produced by Dana Bialek. Read more at QuantaMagazine.org. Production and original music by Story Mechanics.