“If you know the enemy and know yourself, you need not fear the result of a hundred battles. If you know yourself but not the enemy, for every victory gained you will also suffer a defeat. If you know neither the enemy nor yourself, you will succumb in every battle.”u trying to separate reversals that don't work from those that do. U have a model of a lot of reversals that didn't work. Study it until you know why they failed. When you get that then u can develop a list of prerequisites for reversals.
― Sun Tzu, The Art of War

