Explore universal thermalization dynamics in one-dimensional quantum field theories through this conference talk delivered by R. Davison from Heriot-Watt University. Delve into the fundamental principles governing how quantum field theories in (1+1) dimensions approach thermal equilibrium, examining the universal aspects of this thermalization process that transcend specific model details. Investigate the theoretical frameworks and mathematical tools used to analyze out-of-equilibrium many-body systems, focusing on the emergence of thermal behavior from quantum dynamics. Learn about the key mechanisms driving thermalization in lower-dimensional quantum systems and discover how these insights contribute to our broader understanding of non-equilibrium statistical mechanics and quantum thermodynamics.