Tortoise and L-Infinity Norm
The hare argues it should win for reaching the top speed; the tortoise replies that a race isn't decided by the L-infinity norm of velocity.
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Cartoon by Ben Orlin, Math with Bad Drawings. https://cartoons.mathwithbaddrawings.com/2018-04-10-tortoise-and-l-infinity-norm/ (CC BY-NC 4.0)Transcript
Hare: "Shouldn't the winner be whoever attained the maximum speed?"
Tortoise: "This is a race, not an L∞ norm over derivatives."