Dr Francesco Caravelli is a senior postdoc in theoretical physics at the London Institute. He did his PhD at the Perimeter Institute, University of Waterloo on condensed matter models for quantum gravity and also worked on the statistical physics of dynamical graphs, the renormalization group and black holes. Dr Caravelli was a research scientist at Invenia Technical Computing. He is currently working on memristors, spectral methods and complex systems. Dr Caravelli is organizing an online video course on spectral methods for complex systems, hosted by the London Institute.