Explore the intricacies of torsion in string topology through this insightful 59-minute lecture delivered by Florian Naef from Dublin. Delve into the fascinating intersection of algebra, topology, and the Grothendieck-Teichmüller group as part of the NCCR SwissMAP series. Gain a deeper understanding of advanced mathematical concepts and their applications in string theory, expanding your knowledge of this complex field.