He concludes his journey by considering the great unsolved problems of mathematics today, including the Riemann Hypothesis, a conjecture about the distribution of prime numbers. A million dollar prize and a place in the history books await anyone who can prove Riemann's theorem.

Using state-of-the-art 3D graphics and the timing of a stand-up comedian, world-famous statistician Professor Hans Rosling presents a spectacular portrait of our rapidly changing world. With seven billion people already on our planet, we often look to the future with dread, but Rosling's message is surprisingly upbeat.