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No, it is not possible to recirculate water from a higher place to a lower place without some form of external energy or mechanism, such as a pump. The fundamental principle of fluid dynamics is that water flows from a higher elevation to a lower elevation due to the force of gravity. This movement is driven by potential energy, and to overcome this natural flow and lift water to a higher point, energy must be added to the system.

A pump is a common device used to circulate water against gravity by applying external energy. It uses mechanical or electrical energy to create pressure or suction, pushing or pulling the water to move against its natural flow direction. The pump provides the necessary force to overcome gravity and lift the water to a higher level.

Without a pump or some other external energy input, water will naturally flow downwards due to gravity. It is possible to design systems that use the natural slope of the terrain or other gravity-based mechanisms to move water downhill, but they would rely on the existing gravitational potential energy and not recirculate water from a higher to a lower place against gravity without any additional energy input.

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