Explore a 35-minute lecture on Mean String Field Theory and the lower critical dimension, presented by John McGreevy from UCSD as part of the Confinement, Flux Tubes, and Large N KITP conference. Delve into the fascinating world of color confinement, one of the most important phenomena in fundamental physics. Examine the concept of asymptotic freedom in non-Abelian gauge theories and its implications for long-distance interactions. Investigate the formation of chromoelectric flux tubes as a potential mechanism for color confinement, supported by lattice simulations and gravity duals of confining gauge theories. Learn about the large N limit of gauge theories and its significance in studying the confining string. Gain insights from experts in various fields, including color confinement, string theory, lattice gauge theory, gauge/gravity duality, large N methods, and integrability, as they combine perspectives to tackle this classic problem in physics.