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The Lynden-Bell mechanism is a model for the formation of bars in spiral galaxies, essentially showing how interactions between orbiting stars can synchronize their orbits under the conditions of the center of a galaxy. The mechanism has been recently suggested as a possible explanation for an unrelated solar system phenomenon: as alternate explanation for the distribution of extreme trans-Neptune objects that recently motivated the current Planet-Nine concept: if the pattern of orbits of these bodies was caused by the Lynden-Bell mechanism, then the pattern is not evidence for the existence of a Planet Nine.