Have you ever pondered over the enigmatic dance between wind and windmills? How do these towering structures convert the whimsical breeze into usable energy? The paradox of windmills lies in their ability to extract kinetic energy from the wind while allowing it to pass through. Unlike dams that harness potential energy from water, windmills tap into the motion of the wind, a more fluid and less predictable force. This raises an intriguing question: How much wind should a windmill mill?