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Arrow in flight
An arrow in flight is really at rest.
For at every point in its flight, the arrow must occupy a length of
space exactly equal to its own length. After all, it cannot occupy
a greater length, nor a lesser one. But the arrow cannot move within
this length it occupies. It would need extra space in which to move,
and it of course has none. So at every point in its flight, the arrow
is at rest. And if it is at rest at every moment in its flight, then
it follows that it is at rest during the entire flight.
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