Are the imprints left by repeated interactions more akin to erosion of a surface, formation of a stalactite by material being left behind as water flows through, or formation of stalagmite at the terminal end of the waters path? These all seem like distinct types of results of repetitive action but I don't know if any fit
Discussion
The delta interaction is the simplest type of interaction, and combinations of them (convolutions) can approximate any type of more complex interaction. Theres an animation here to help explain.
Also stems from the main argument of Semiotic Interaction