You Did Not Build A Restaurant, You Rented A Trend
The operator who rides a trend into a market never answers the only question that governs his outcome, because the trend answers it for him. Demand arrives without being produced, so the operation gets built to capture it rather than to create it. That is a real trade and it pays real money while the gap is open. It also leaves nothing behind, because capturing a spread is the one activity that cannot manufacture a second spread. When the window closes the operator reaches for the instruments that made the window profitable, and every one of them is now a subtraction taken out of the only accounts he has left.