Absence Is Disrupted Expectation

The most cursory study
Of geology teaches
You discontinuities

Are highly informative.
Likewise, how would you know things
Exist if you couldn’t spot

Gaps in the continuous?
But a riddle is hidden
In each interlude’s abyss.

Look closer and you’ll notice
It’s not absence, only change
Presented in the sequence,

Something else there than was there,
Fore or aft, on either side.
What’s not there’s just inference.