What it teaches
To write a conditional plan whose every line can be checked after the trade, place the zones it refers to from repeated reactions, and say which of the evidence for it is independent; to recognise a breakout, a pullback and a reversal — and the failed version of each — candle by candle; to pick the entry candle a stated model permits, put the stop beyond invalidation with room for noise, and set targets at structure rather than at a ratio; to compute risk, reward, break-even and expectancy, turn a risk budget into a rounded-down quantity, and manage an open trade to its plan while scoring discipline apart from outcome; to read a backtest for the number that would make you reject the rules, keep a journal another reviewer could use, and write one measurable improvement rule from it.