In our logo, a mischievous devil playfully adds a nonlinearity to the quantum wave function. Some may think it is reminiscent of the Maxwell demon but, in fact, it celebrates popular festivities throughout Mallorca around the central elements of sun, fire and water. In particular, "correfocs" consist of fire devils running along the streets daunting the crowd with the aid of drum beatings and fireworks. However, these demons are cheerful spirits inspiring the joy of play. We hope our conference mascot will inspire interesting discussions on the topics!