Chant: Echoes of the Abyss

The phenomenon of acoustic echo is produced upon the reflection of sound waves against surfaces not entirely absorptive in nature. Defined mathematically as an iterative function of consecutive reverberations, its magnitude decreases in geometric proportion, converging on silence yet never reaching it.

Consider the empty chamber: its geometry speaks in oscillated tones, sound fractals filling voids until the walls themselves blur into ether. This space, though devoid of mass, contains potential yet unexplored. How an echo resembles a complex organism, growing, feeding on its own repeated cries, adapting vocally to its surroundings...

The depth of acoustic waves, much like geological strata, reveals a layered narrative upon each return: the first is immediate and familiar, the second begins to stretch time, the third becomes an analogue of the past—the rise and fall of epochs delineated through sonorous history.

Scientists assert that every echo tells the listener where it has been before returning home. Imagine a universe woven of invisible chords, plucked in the dark, reverberating through structures light and angular. Herein lies the paradox of existence: sound, as eternal as time itself, yet always bound to its moment of creation.