In the emerging science of synthetic biology, iGEM is growing as a source of ambitious and imaginative ideas which have the potential to offer great benefits to human society and our environment. The number of successful iGEM start-ups clearly demonstrates that the competition gives team the chance not just to complete a summer project but to come up with a solution which has a positive impact in the real world—in fact, many projects are conceived in the hope of doing just this, often with a specific unresolved social problem in mind. iGEM draws inspiration from the world and the challenges it faces, and contributes back potential solutions.