This document discusses the evolution of writing formats from oral traditions through scrolls, codices, printed books, and digital documents. It argues that linear, sequential presentation of information in printed books emerged due to the constraints of printing technology but is not a natural or limiting format. The document proposes a new document structure called "Polyfoils" that allows for cyclical, branching, and complex nonlinear presentations of information to better fit electronic media and knowledge work. Polyfoils aim to advance full, non-linear thinking over "skinny, child-length" texts while avoiding monopolization through concrete definition.