Professor Jeffrey Johnson is Professor of Complexity Science and Design at the Open University. He has researched both physical and human complex systems, and the interactions between them. With Dr Hirst he organised a nationwide children’s robot design competition with the BBC Blue Peter television programme, and is one of the founders of the international RoboCupJunior movement in which includes children creating robots that dance. He believes that robotics will play a major role in the development of the science of complex systems.