Recursion
An algorithm that uses the output for one iteration as the input for the next is recursive.
Recursion is behind feedback loops in nature and fractal equations. These concepts are necessary prerequisites to understanding metaculture.
The notion of meta is recursion in thought.
See also Gödel's Incompleteness Theorems.
This one is a quick intro from a coding point of view.
This explanations recursion and how it relates to fractals and the building blocks of nature.