Arrow Paradox
Contents
Paradox
At any particular instant, a moving arrow is either at rest or in motion.
If the instant is indivisible, the arrow cannot move, because if it did, the instant would immediately be divided.
But time is made up of instants.
As the arrow cannot move in any one instant, it cannot move in time.
Hence the arrow remains at rest.
Resolution
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Historical Note
The Arrow Paradox is one of Zeno's Paradoxes, as famously raised by Zeno of Elea.
Sources
- 1937: Eric Temple Bell: Men of Mathematics ... (previous) ... (next): Chapter $\text{II}$: Modern Minds in Ancient Bodies
