Animated illustration in four parts. One: a depth of market ladder, liquidity heatmap and time and sales tape show a sell wall absorbing buyers, a resting bid being cancelled before price reaches it, then a bid wall absorbing sellers. Two: price drops to the volume point of control, sellers are absorbed and price reverses. Three: a TPO profile builds letter by letter over a session, then four profile shapes are compared. Four: on a BTCUSDT perpetual chart, price sweeps above a range high, fails to hold and reverses down while open interest rises. A simulated short from the failure to the range low is shown. This is a simulation for education only.