Simplicities and Complexities" will take place from 22 to 24 May 2019 at the University of Bonn, Germany. It aims to bring together scientists and scholars from a spectrum of disciplines such as physics, biology, ecology, chemistry, and computational science, as well as from philosophy, sociology, and history of science. This conference is organized by the interdisciplinary, DFG- and FWF-funded research unit "Epistemology of the LHC".