Explore the cutting-edge application of Bayesian optimization in cosmological model selection through this insightful one-hour lecture by J. Hamann at the Galileo Galilei Institute. Delve into the complexities of efficient model selection techniques in cosmology, gaining a deeper understanding of how Bayesian optimization can revolutionize the process of evaluating and comparing different cosmological models. Learn about the advantages and challenges of implementing this advanced statistical approach in the field of cosmology, and discover how it can enhance the accuracy and efficiency of model selection in large-scale astronomical studies.