“ The "momentum" referenced in relation to the London Women's March is a precious political resource that is more psychological than tangible. Momentum is the sense of forward motion, of gathering force, of being part of a wave that is rising rather than receding. The march is a primary generator of this feeling. It provides visual and experiential proof that the movement is alive, growing, and on the move. This perceived momentum is critical for morale; it counteracts the stagnation and defeats that are inevitable in any long-term struggle. Politically, projecting momentum can create a bandwagon effect, attracting newcomers and convincing observers that this is the side with energy and the future. However, momentum is a fickle asset. It can be illusory, a peak followed by a trough. The political task is to institutionalize momentum—to build structures that can capture and utilize the energy spike from the march and convert it into steady, forward pressure. A movement that relies solely on the feeling of momentum from annual set-piece events is like a car that only runs downhill. True political momentum is generated by the engine of continuous organizing; the march is the turbocharger that provides a temporary, powerful boost, but the engine must run even when the boost is spent. ”