The document discusses the concept of open design, which involves publishing CAD files online under a Creative Commons license so they can be freely downloaded, copied, modified, and produced by CNC machines without special tooling. Open design has two limitations: modifications must be shared under the same license and the license prohibits commercial uses. The document advocates for open design to help connect producers, designers, and consumers and give designers more control over the creative process. Early adopters of open design are more focused on the process of making things than what specifically is created.